TWI435139B - Static progressive surface region in optical communication with a dynamic optic - Google Patents

Description

Static enhanced surface area in optical transmission with dynamic optics

The present invention relates to multifocal ophthalmic lenses, lens designs, lens systems, and eyewear products or devices that are utilized on, in or around the eye. More particularly, the present invention relates to multifocal ophthalmic lenses, lens designs, lens systems, and eyewear products that provide for reducing, in most cases, unwanted distortion associated with enhanced lenses, unwanted astigmatism, and visual impairment to the wearer. A fully acceptable range of optical effects / end results.

Presbyopia is often accompanied by a regulatory loss of the lens of the aging person's eye. This accommodative loss results in the inability to focus on close objects. The standard tool for correcting presbyopia is a multifocal ophthalmic lens. A multifocal lens is a lens that has more than one focal length (i.e., power) for correcting focus problems over a range of distances. Multifocal ophthalmic lenses work by dividing the lens area into regions of different power. Typically, a relatively large area located above the lens corrects for remote vision errors, if any. The smaller area at the bottom of the lens provides additional power for correcting near vision errors caused by presbyopia. The multifocal lens may also contain a small area located near the middle of the lens that provides additional power for correcting mid-range vision errors.

Transitions between regions of different powers can be abrupt (as in the case of bifocal and trifocal lenses), or gradual and continuous (as in the case of enhanced lenses). A promotional lens is a type of multifocal lens that includes a gradient of positive refractive power that continues to increase from a distance viewing zone of the lens to a close viewing zone of the lower portion of the lens. This increase in power is generally The so-called mating cross or mating point close to the lens continues to increase until full gain is achieved in the close viewing zone and then reaches a plateau. Conventional and current state of the art enhancement lenses utilize a surface configuration that is shaped to form the power of one or both of the outer surfaces of the lens. Promotional lenses are referred to as PAL in the optical industry (plural form is PALs or singular form is PAL). PAL lenses are superior to conventional bifocal and trifocal lenses in that they provide a seamless, cosmetically pleasing multifocal lens to the user when focusing on objects at a distance to close objects or when focusing on It has continuous vision correction when the object is close to the object at a distance.

Although PAL is now widely accepted and popular in the United States and throughout the world as a correction for presbyopia, it also has severe visual impairment. Such damage includes, but is not limited to, useless astigmatism, distortion, and perceptual blurring. These visual impairments can affect the horizontal viewing width of the user, which is the field of view width that is clearly seen from side to side when the user is focusing at a given distance. Thus, when focusing at a mid-range, the PAL lens can have a narrower horizontal viewing width, which can make it difficult to view a larger portion of the computer screen. Similarly, when focusing at close distances, the PAL lens can have a narrower horizontal viewing width, which can make it difficult to view a complete page of a book or newspaper. Long-distance vision can be similarly affected. Due to the distortion of the lens, the PAL lens can also cause difficulties for the wearer while performing sports. In addition, since the optical add power is placed in the bottom area of the APL lens, when the wearer observes an object located at a close or intermediate distance above its head, it must tilt its head backward to use this area. Instead, when the wearer goes down the stairs and assumes down When viewed, the lens provides a close focus instead of clearly seeing the distance focus necessary for its feet and stairs. Therefore, the wearer's foot will be out of focus and behave ambiguously. In addition to these limitations, many PAL wearers experience an uncomfortable effect known as visual motion (often referred to as "eyes") due to unbalanced distortions present in each of the lenses. In fact, many people refuse to wear these lenses due to this effect.

When considering the near-power requirement of presbyopic individuals, the amount of near-power required is directly related to the amount of adjustment amplitude (close focus ability) left by the individual in his or her eye. In general, as individuals age, the amount of adjustment decreases. The magnitude of the adjustment can also be reduced for various health reasons. Thus, as a person ages and becomes more presbytic, the power required to correct the person's ability to focus at near and intermediate viewing distances becomes stronger depending on the desired refractive optical add power. For example only, a 45-year-old person may need a near-observation distance power of +1.00 diopters to see at a near-point distance, while an 80-year-old may require a near-observation distance of +2.75 diopters to +3.00 diopters. The power is seen at the same near point distance. Since the degree of visual impairment in the PAL lens increases with the refractive power of the refractive optics, a person with a higher degree of presbyopia will experience greater visual impairment. In the above example, a 45 year old would have a lower degree of distortion associated with their lens than a 80 year old. Obviously, considering the quality of life issues associated with old age (such as weakness or loss of dexterity), this is exactly the opposite of what is needed. The multifocal lens that adds damage to the vision function and suppresses safety is in stark contrast to lenses that make life easier, safer, and less complex.

By way of example only, a conventional PAL with a +1.00D near power can have a large About +1.00D or less of unwanted astigmatism. However, conventional PALs with +2.50D near-power can have unwanted astigmatism of about +2.75D or more, while conventional PALs with +3.25D near-point power can have about +3.75D or more. Useless astigmatism. Thus, as the PAL gains an increase in close proximity (eg, +2.50 D PAL compared to +1.00 D PAL), the unwanted astigmatism found within the PAL increases at a rate greater than the linear rate relative to the close add power.

Recently, two-sided PALs have been developed which have a promotional surface configuration placed on each side of the lens. The two enhanced surfaces are aligned and rotated relative to each other not only provides the appropriate total added close-range addition power required, but also the unwanted astigmatism formed by PAL on one surface of the lens and the other by the PAL in the lens Some of the unwanted astigmatism formed on the surface is offset by some unwanted astigmatism. Even if this design slightly reduces the unwanted astigmatism and distortion of a given close-range add power compared to a conventional PAL lens, the degree of unwanted astigmatism, distortion, and other visual impairments listed above still cause severe vision to the wearer. problem.

Therefore, there is an urgent need to provide a vanity need to satisfy the presbyopia individual while at the same time correcting in a manner that reduces distortion and blur when performing sports, operating a computer and reading a book or newspaper, broadening the viewing width, allowing improved safety, and allowing improved visual ability. Its presbyopic spectacle lenses and / or glasses system.

In one embodiment of the invention, an ophthalmic lens having a mating point for a user can include an increasing area having a channel, wherein the increasing area has an added power. The ophthalmic lens can further comprise a dynamic optics that can be optically transmitted with an increasing area of one power at the time of activation.

In an embodiment of the invention, there is a matching point for a user The ophthalmic lens can include an increasing region having a channel with an added power within the increasing region. The ophthalmic lens can further comprise a dynamic optics that optically transmits upon activation with an increasing area of optical power, wherein the dynamic optics has a top peripheral edge within about 15 mm of the mating point.

Many ophthalmic, optometry, and optical terms are used in this application. For the sake of clarity, the definitions are listed below: Adding power : The power added to the distance viewing power, which is the power required to see it at close range in a multifocal lens. For example, if a person has a long-range observation prescription of -3.00D and a close-up observation of the add power of +2.00D, the actual power in the close-range portion of the multifocal lens is -1.00D. Adding power is sometimes referred to as positive power. Adding power can be further referred to as "adding power by near observation distance" (which refers to the added power in the near viewing distance portion of the lens) and "adding power in the middle observation distance" (which refers to the lens) The degree of addition in the distance portion is observed to distinguish. Typically, the medium viewing distance add power is approximately 50% of the power added to the near viewing distance. Thus, in the above example, the individual will have a +1.00D mid-range viewing add power and the actual total power in the distance portion observed in the multifocal lens is -2.00D.

Approximately : within ±10% (including ±10%). Thus, the phrase "about 10 mm" can be understood to mean from 9 mm to 11 mm (including 9 mm and 11 mm).

Blending zone : a power conversion along the peripheral edge of the lens, whereby the optical power continues to transition from the first corrected power to the second corrected power or continuously from the second corrected power to the first on the blending zone Correct the power. In general, the blending zone is designed to have as small a width as possible. The peripheral edge of the dynamic optics can include a blending zone to reduce the visibility of dynamic optics. The blending zone is utilized for cosmetic enhancement reasons and also to enhance visual function. Due to the high unwanted astigmatism of the blending zone, it is generally not considered a usable part of the lens. The blending zone is also referred to as the transition zone.

Channel : A region of the enhanced lens defined by increasing the positive power that extends from a long range of power regions or regions to a near power range or region. This power enhancement begins at the area of the PAL called the mating point and ends at the close viewing area. Channels are sometimes referred to as aisles.

Channel Length : The channel length is the distance measured from the mating point to the position where the added power in the channel is within approximately 85% of the specified close-range viewing power.

Channel Width : The narrowest portion of the channel defined by unwanted astigmatism above about +1.00D. This definition is available when comparing PAL lenses due to the fact that wider channel widths are generally associated with less distortion, better visual performance, increased visual comfort, and easier adaptability of the wearer.

Contour map : Self-measurement and plotting the curve produced by the unwanted astigmatic power of the lens. Contour maps can produce a variety of astigmatic power sensitivities, thus providing a visual map of where and to what extent the lens has unwanted astigmatism as part of its optical design. The analysis of these figures is typically used to quantify PAL channel length, channel width, read width, and long range width. Contour maps can also be referred to as unwanted astigmatism plots. These figures can also be used to measure and depict the power in various parts of the lens.

Conventional channel length : A lens with a vertical shortening may be required due to aesthetic methods or trends in eyeglass style. In this lens, the passage is naturally shorter. Conventional channel length refers to the length of the channel in the non-shortened PAL lens. These channel lengths are typically (but not always) about 15 mm or longer. In general, a longer channel length means a wider channel width and less unwanted astigmatism. Longer channel designs are often associated with "soft" enhancements because the transition between distance correction and close distance correction is softer due to the slower increase in power.

Dynamic lens : A lens whose power can be changed with the application of electrical energy, mechanical energy or force. The entire lens can have variable power, or only a portion, region or region of the lens can have variable power. The power of the lens is dynamic or adjustable such that the power can be switched between two or more powers. One of the powers may be a power that is substantially absent. Examples of dynamic lenses include electroactive lenses, meniscus lenses, fluid lenses, movable dynamic optics with one or more components, gas lenses, and thin film lenses with deformable components. Dynamic lenses can also be referred to as dynamic optics, dynamic optics, dynamic optics, or dynamic optics.

Long-distance reference point : A reference point located approximately 3 to 4 mm above the cross, where the far-distance prescription or long-range power of the lens can be easily measured.

Remote viewing zone : A section containing a lens that allows the user to view the power of the correction at a far viewing distance.

Far Width : The narrowest horizontal width of the lens at a distance from the viewing portion that provides a clear, substantially distortion-free correction, and the power is within 0.25D of the wearer's long-range viewing power correction.

Far-distance distance : For example, when someone is looking beyond the edge of their desk, when they are driving, when they are watching a distant mountain or watching a movie, the distance they see. This distance is usually (but not always) considered to be approximately 32 inches or more from the eye. The far viewing distance can also be referred to as a long distance and a long distance point.

Matching cross/fit point : A reference point on the PAL that represents the approximate position of the pupil once the lens is mounted in the eyeglass frame and positioned on the wearer's face when the wearer looks through the lens. The mating cross/fit point is usually (but not always) 2 to 5 mm vertically above the beginning of the channel. The mating cross typically has a very small amount of positive power ranging from slightly above +0.00 diopters to about +0.12 diopters. This point or cross is marked on the surface of the lens such that it provides a simple reference point for measuring and/or recombining the lens relative to the wearer's pupil. The marker is easily removed after the lens is dispensed to the patient/wearer.

Hard enhancement lens : A progressive lens with a slower, steeper transition between long range correction and close distance correction. In a hard PAL, unwanted distortion can be below the mating point and does not extend outward into the perimeter of the lens. Hard PALs can also have shorter channel lengths and narrower channel widths. A "modified hard enhancement lens" is a hard PAL modified to have a finite number of soft PAL features, such as slower power transitions, longer channels, wider channels, more unwanted astigmatism Extends into the perimeter of the lens with less unwanted astigmatism below the mating point.

Mid-range viewing zone : A section containing a lens that allows the user to observe the distance-corrected power of the viewing angle.

Medium viewing distance : The distance seen by a person when reading a newspaper, when operating a computer, when brushing a dish in a sink, or when ironing clothes. This distance is usually (but not always) considered to be between about 16 inches and about 32 inches from the eye. The medium viewing distance can also be referred to as a medium distance and a medium distance point.

Lens : Any part of a device or device that converges or diverges light. The device can be static or dynamic. The lens can be refracting or diffractive. The lens may be concave, convex or flat on one or both surfaces. The lens can be spherical, cylindrical, prismatic, or a combination thereof. The lens can be made of optical glass, plastic or resin. A lens may also be referred to as an optical element, an optical zone, an optical zone, a power zone, or an optics. It should be noted that in the optical industry, a lens can be referred to as a lens even if it has zero power.

Lens blank : A device made of an optical material that can be shaped into a lens. The lens blank can be trimmed to mean that the lens blank is shaped to have power on both outer surfaces. The fact that the lens blank can be half-finished means that the lens blank is shaped to have power on only one outer surface. The fact that the lens blank may not be trimmed means that the lens blank may not be shaped to have power on either outer surface. The surface of the lens blank that has not been trimmed or semi-trimmed can be trimmed by a manufacturing process known as freeform or by more conventional surface processing and grinding.

Low add power PAL : A promotional lens with a near add power that is less than the near added power necessary for the wearer to see at close range.

Multifocal lens : A lens with more than one focus or power. The lenses can be static or dynamic. Examples of static multifocal lenses include bifocal lenses, trifocal lenses, or enhancement lenses. Examples of dynamic multifocal lenses include electroactive lenses whereby various optical powers are formed in the lens depending on the type of electrode used, the voltage applied to the electrode, and the refractive index that changes within the thin layer of liquid crystal. Multifocal lenses can also be a combination of static and dynamic. For example, an electroactive element can be used for optical transmission with a static spherical lens, a static single optical lens, a static multifocal lens such as, for example, a promotional lens. In most cases (but not in all cases), the multifocal lens is a refractive lens.

Close-range viewing zone : A portion containing a lens that allows the user to view the power of the power at a near viewing distance.

Near viewing distance : For example, when someone is reading a book, when they are wearing a needle, or when reading a description on a vial, the distance they see. This distance is usually (but not always) considered to be between about 12 inches and about 16 inches from the eye. The near viewing distance can also be referred to as a close distance and a close distance point.

Office Lens / Office PAL : A specially designed promotional lens that provides mid-range vision above the cross, wider channel width, and wider read width. This is achieved by an optical design that expands unwanted astigmatism above the mating cross and that replaces the far vision zone with a field of vision that is primarily a mid-range vision zone. Due to these characteristics, this type of PAL is particularly suitable for departmental work, but since the lens does not contain a remote viewing area, the wearer cannot use this type of PAL while driving or walking around the office or home.

Ophthalmic lens : A lens suitable for vision correction, including ophthalmic lenses, contact lenses, intraocular lenses, corneal inlays, and keratoplasts.

Optical Transfer : A situation in which two or more optics of a given power are aligned in a manner such that light passing through the aligned optics experiences a combined power equal to the sum of the powers of the individual elements.

Patterned electrode : An electrode utilized in an electroactive lens that is formed by diffracting the power formed by the liquid crystal by applying an appropriate voltage to the electrode regardless of the size, shape and configuration of the electrode. For example, a diffractive optical effect can be dynamically generated within a liquid crystal by using a concentric ring electrode.

Pixelated electrode : An electrode utilized in an electroactive lens that can be individually addressed regardless of the size, shape, and configuration of the electrodes. Furthermore, since the electrodes can be individually addressed, any random mode voltage can be applied to the electrodes. For example, the pixelated electrodes can be squares or rectangles arranged in a Cartesian array or hexagons arranged in a hexagonal array. The pixelated electrodes need not be in a regular shape that conforms to the grid. For example, if each ring can be individually addressed, the pixelated electrodes can be concentric rings. The concentric pixelated electrodes can be individually addressed to form a diffractive optical effect.

Increasing region : a lens region having a first power in a first portion of the region and a second power in a second portion of the region, wherein there is a continuous relationship between the first portion and the second portion The power is changed. For example, a region of the lens can have a far viewing distance power at one end of the region. The power can be continuously increased in this region to a medium viewing distance power and then to a near viewing distance power at the opposite end of the region. After the power reaches the near-observation distance power, the power can be reduced in such a manner that the power of the increasing region transitions back into the far-view distance. The increasing area can be on the surface of the lens or embedded in the lens. When the increasing area is on the surface and contains a surface configuration, it is referred to as a promotional surface.

Read Width : The narrowest horizontal width of the portion of the lens at a close distance that provides a clear, substantially distortion-free correction, and the power is within 0.25D of the wearer's close-range viewing power correction.

Short channel length : Due to the aesthetic relationship or trend of the style of the glasses, a lens with a vertical shortening may be required. In this lens, the passage is naturally shorter. The short channel length refers to the length of the channel in the shortened PAL lens. These channel lengths are typically (but not always) between about 11 mm and about 15 mm. In general, a shorter channel length means a narrower channel width and more unwanted astigmatism. Shorter channel designs are often associated with "hard" enhancements because the transition between distance correction and close distance correction is harder due to a steeper increase in power.

Soft enhancement lens : A progressive lens with a slower transition between long range correction and close distance correction. In soft PAL, unwanted distortion can extend above the mating point and outward into the perimeter of the lens. Soft PALs can also have longer channel lengths and wider channel widths. A "modified soft enhancement lens" is a soft PAL modified to have a finite number of hard PAL features, such as steeper power transitions, shorter channels, narrower channels, more unwanted astigmatism Inside the lens viewing section, and more unwanted astigmatism below the fit point.

Static lens : A lens that has a power that cannot be changed with the application of electrical energy, mechanical energy, or force. Examples of static lenses include spherical lenses, cylindrical lenses, promotional lenses, bifocal lenses, and trifocal lenses. Static lenses can also be referred to as fixed lenses.

Useless astigmatism : Improves the useless aberrations, distortions, or astigmatism found in the lens, which does not specify the part of the vision correction for the patient, but is inherent in the optical design of the PAL due to the gentleness of the power between the viewing areas. gradient. While the lens can have unwanted astigmatism over different regions of the various diopter lenses, the unwanted astigmatism in the lens generally refers to the largest unwanted astigmatism found in the lens. Unwanted astigmatism can also refer to unwanted astigmatism located in a particular portion of the lens (as opposed to the entire lens). In this case, a quantified language is used to represent unwanted astigmatism that is only considered in a particular portion of the lens.

When describing dynamic lenses, the present invention encompasses, by way of example only, electroactive lenses, fluid lenses, gas lenses, film lenses, and mechanically movable lenses, and the like. Examples of such lenses can be found in U.S. Patent Nos. 6,517,203, 6,491,394, 6,619,799 to Blum et al., U.S. Patent Nos. 7,008,054, 6,040,947, 5,668,620, 5,999,328, 5,956,183 to Epstein and Kurtin. No. 6,893,124, U.S. Patent Nos. 4,890,903, 6,069,742, 7,085, 065, 6, 188, 525, 6, 618, 208, S.S. Pat. No. 5, 182, 585, and U.S. Patent No. 5,229,885 to Quaglia.

It is well known and accepted in the optical industry that the user of the lens (in most cases) is difficult to perceive as long as the unwanted astigmatism and distortion of the lens is at about 1.00 D or less. The invention disclosed herein relates to embodiments of optical design, lenses, and eyewear systems that address many, if not most, of the problems associated with PAL. Additionally, the invention disclosed herein significantly excludes most of the visual impairment associated with PAL. The present invention provides a member for achieving proper far, medium and close power of a wearer, Continuous focusing capability for a variety of distances, similar to the focusing power of PAL. However, for certain high add power prescriptions such as +3.00D, +3.25D, and +3.50D, the present invention simultaneously maintains unwanted astigmatism to a maximum of about 1.50D. However, in most cases, the present invention maintains unwanted astigmatism to a maximum of about 1.00 D or less.

The present invention is based on aligning the low add power PAL with the dynamic lens such that the dynamic lens is optically transmitted with the low add power PAL, whereby the dynamic lens provides the wearer with a clear view of the additional required power at close range. This combination produces unexpected results: not only can the wearer see clearly at mid-range and close-range, but the degree of unwanted astigmatism, distortion, and visual impairment is significantly reduced.

The dynamic lens can be an electroactive element. In an electroactive lens, electroactive optics are embedded within or can be attached to the surface of the optical substrate. The optical substrate can be a trimmed, semi-trimmed or unfinished lens blank. When a semi-trimmed or untrimmed blank is used, the lens blank can be trimmed during manufacture of the lens to have one or more powers. Electroactive optics can also be embedded within or attached to the surface of conventional optical lenses. Conventional optical lenses can be single focus lenses or multifocal lenses, such as promotional lenses or bifocal or trifocal lenses. The electroactive optics can be located throughout the viewing area of the electroactive lens or in only a portion thereof. Electroactive optics can be spaced from the peripheral edge of the optical substrate to edging the electroactive lens into spectacles. The electroactive element can be located near the top, middle or bottom of the lens. When substantially no voltage is applied, the electroactive optics can be in a disabled state, wherein it generally does not provide power. In other words, when substantially no voltage is applied, the electroactive optics can have an embedded optical or The attached optical substrate or conventional lens has substantially the same refractive index. When a voltage is applied, the electroactive optics can be in an activated state in which it provides optical add power. In other words, when a voltage is applied, the electroactive optics may have a different refractive index than an optical substrate or a conventional lens in which it is embedded or attached.

Electroactive lenses can be used to correct for conventional or non-conventional errors in the eye. This correction can be made by an electroactive element, an optical substrate or a conventional optical lens or by a combination of the two. Conventional errors in the eye include low-order aberrations such as myopia, hyperopia, presbyopia, and astigmatism. Non-conventional errors in the eye include higher order aberrations, which can be caused by eye layer irregularities.

Liquid crystals can be used as part of electroactive optics because the refractive index of liquid crystals can be altered by generating an electric field on the liquid crystal. The electric field can be generated by applying one or more voltages to electrodes located on both sides of the liquid crystal. The electrodes can be substantially transparent and fabricated from a substantially transparent conductive material such as indium tin oxide (ITO) or other such materials well known in the art. Liquid-based electroactive optics can be particularly useful as part of electroactive optics because liquid crystals can provide a desired range of refractive index changes to provide a flat optical add power of +3.00D. This optical add power range may be able to correct the presbyopia of most patients.

A thin layer of liquid crystal (less than 10 μm) can be used to construct electroactive optics. The liquid crystal layer can be sandwiched between two transparent substrates. The two substrates may also be sealed along their peripheral edges to seal the liquid crystal within the substrate in a substantially airtight manner. A layer of transparent conductive material can be deposited on the inner surface of two substantially planar transparent substrates. A conductive material can then be used as the electrode. When a thin layer is employed, the shape and size of the electrodes can be used to induce specific optical effects within the lens. To be applied to The desired operating voltage of the electrodes of the thin layers of liquid crystal can be relatively low, typically less than 5 volts. The electrodes can be patterned. For example, a diffractive optical effect can be dynamically generated within a liquid crystal by using concentric ring electrodes deposited on at least one of the substrates. This optical effect can produce optical add power based on the ring radius, the ring width, and the voltage ranges applied to the different rings, respectively. The electrodes can be pixelated. For example, the pixelated electrodes can be squares or rectangles arranged in a Cartesian array or hexagons arranged in a hexagonal array. The pixelated electrode array can be used to produce optical add power by mimicking a diffractive concentric ring electrode structure. Pixelated electrodes can also be used to correct higher order aberrations of the eye in a manner similar to that used to correct atmospheric turbulence in ground-based astronomy.

Current manufacturing methods limit the minimum pixel size and also limit the maximum dynamic electroactive optical diameter. By way of example only, when using a concentric pixilation method that forms a diffractive pattern, the maximum dynamic electroactive optical diameter is estimated to be 20 mm for +1.50 D, 24 mm for +1.25 D, and 30 mm for +1.50 D. Current manufacturing methods limit the maximum dynamic electroactive optical diameter when using pixelated diffraction methods. Also, embodiments of the invention may have dynamic electroactive optics that have less power at larger diameters.

Alternatively, the electroactive optics comprises two transparent substrates and a liquid crystal layer, wherein the first substrate is substantially flat and coated with a transparent conductive layer, and the second substrate has a patterned surface having a surface convex and concave diffraction pattern It is also coated with a transparent conductive layer. The surface convex-concave diffractive optics is a solid substrate having an etched or formed diffraction grating thereon. The surface convex and concave diffraction pattern can be formed by diamond cutting, injection molding, molding, thermoforming and stamping. form. The optics can be designed to have fixed power and/or aberration correction. By applying a voltage to the liquid crystal via the electrodes, the power/disparity correction can be turned on and off by refractive index mismatch and matching, respectively. When substantially no voltage is applied, the liquid crystal can have a refractive index that is substantially the same as the surface convex and concave diffractive optics. This cancellation is typically the power provided by the surface convex and concave diffractive elements. When a voltage is applied, the liquid crystal can have a different index of refraction than the surface convex and concave diffractive elements such that the surface convex and concave diffractive elements now provide optical add power. Dynamic electroactive optics having a larger diameter or horizontal width can be fabricated by using a surface convex-concave diffraction pattern method. The width of these optics can be made up to or greater than 40 mm.

A thicker liquid crystal layer (typically > 50 μm) can also be used to construct electroactive multifocal optics. For example, a modal lens can be employed to form refractive optics. It is known in the art that a modal lens has a single continuous low conductivity circular electrode surrounded by and in electrical contact with a single highly conductive ring electrode. After applying a single voltage to the highly conductive ring electrode, the low conductivity electrode, substantially radial symmetric resistance network, creates a voltage gradient across the liquid crystal layer that subsequently induces a refractive index gradient in the liquid crystal. A liquid crystal layer having a refractive index gradient will act as an electroactive lens and will focus the light incident thereon.

In an embodiment of the invention, dynamic optics is used in combination with a promotional lens to form a combined lens. The enhanced lens can be a low add power enhancement lens. The enhancement lens contains an increasing area. Dynamic optics can be positioned such that it optically communicates with the increasing area. Dynamic optics are spaced apart from the increasing area, but optically transmitted therebetween.

In an embodiment of the invention, the increasing area may have +0.50D, Add power of one of +0.75D, +1.00D, +1.12D, +1.25D, +1.37D, and +1.50D. In an embodiment of the invention, the dynamic optics may have +0.50D, +0.75D, +1.00D, +1.12D, +1.25D, +1.37D, +1.50D, +1.62D, + 1.75 in the activated state. The power of one of D, +2.00D and +2.25D. The add power and dynamic optical power of the increasing region can be manufactured or specified for patients with a +0.125D (which is approximately +0.12 or +0.13) refractive index or a +0.25D refractive index.

It should be noted that the present invention encompasses any and all possible power combinations (dynamic and static) required to properly correct the wearer's vision at the far, middle and near viewing distances. The examples and embodiments of the invention are provided by way of illustration only and are not intended to be limiting. Rather, it is intended to show the add power relationship when the low add focus progressive region is optically transmitted with dynamic optics.

Dynamic optics can have a blending zone such that the power along the perimeter edge of the component is blended to reduce the visibility of the peripheral edge when the component is activated. In most, but not all, cases, the power of the dynamic optics can be maximized by the dynamic power of the dynamic optics when freely activated in the blending zone to enhance the power found in the lens. In an embodiment of the invention, the blending zone may be from 1 mm to 4 mm wide along the dynamic optical peripheral edge. In another embodiment of the invention, the blending zone may be from 1 mm to 2 mm wide along the dynamic optical peripheral edge.

When dynamic optics is disabled, dynamic optics will generally not provide optical add power. Thus, when dynamic optics is disabled, the enhancement lens can provide all of the added power of the combined lens (ie, the total add power of the combined optics is equal to the add power of the PAL). If the dynamic optics include a blending zone, it is in a disabled state, Due to the index matching in the disabled state, the blending region does not substantially form power and is substantially free of unwanted astigmatism. In an embodiment of the invention, when dynamic optics is disabled, the total unwanted astigmatism within the combined lens is substantially equal to the unwanted astigmatism caused by the enhanced lens. In an embodiment of the invention, when dynamic optics is disabled, the combined add power of the combined optics may be approximately +1.00 D and the total unwanted astigmatism within the combined lens may be approximately 1.00 D or less. In another embodiment of the invention, when dynamic optics is disabled, the combined add power of the combined optics may be approximately +1.25 D and the total unwanted astigmatism within the combined lens may be approximately 1.25 D or less. In another embodiment of the invention, when dynamic optics is disabled, the combined add power of the combined optics may be approximately +1.50 D and the total unwanted astigmatism within the combined lens may be approximately 1.50 D or less.

Dynamic optics will provide additional power when dynamic optics are activated. Because dynamic optics and enhanced lenses are optically transmitted, the total add power of the combined optics is equal to the add power of the PAL and the add power of the dynamic optics. If the dynamic optics include a blending zone, in the activated state, due to the refractive index mismatch in the activated state, the blending zone forms power and unwanted astigmatism and is largely unusable for vision focusing. Thus, when dynamic optics includes a blending zone, the unwanted astigmatism of the combined optics is only measured in the available portions of the dynamic optics that do not include the blending zone. In an embodiment of the invention, when dynamic optics is activated, as measured via the available portion of the lens, the total unwanted astigmatism within the combined lens may be substantially equal to the unwanted astigmatism within the enhanced lens. In an embodiment of the invention, when dynamic optics is activated and the total add power of the combined optics is between about +0.75D and about +2.25D, The total unwanted astigmatism in the portion can be 1.00 D or less. In another embodiment of the invention, when dynamic optics is activated and the total add power of the combined optics is between about +2.50D and about +2.75D, the total unwanted astigmatism in the available portion of the combined lens can be 1.25D or less. In another embodiment of the invention, when dynamic optics is activated and the total add power of the combined optics is between about +3.00D and about +3.50D, the total unwanted astigmatism in the available portion of the combined lens can be 1.50D or less. Thus, the present invention allows for the formation of a lens having a total additive power that is significantly higher than the unwanted astigmatism of the lens (as measured by the available portion of the lens). Or in another way, for a given total add power of the combined lens of the present invention, the degree of unwanted astigmatism is substantially reduced. This is a great improvement with regard to lenses or commercially available lenses taught in the literature. This improvement translates into a higher fit rate, less distortion, fewer errors or misalignments of the wearer, and a wider clear mid-range and close-range field of view as observed by the wearer.

In an embodiment of the invention, dynamic optics may form between about 30% and about 70% of the total add power required for the user's prescription for close vision. The increasing area of the low add power PAL can form the remainder of the add power required for the user's close vision prescription, i.e., between about 70% and about 30%, respectively. In another embodiment of the invention, the dynamic optics and the incremental regions may each form approximately 50% of the total add power required for the user's prescription for close vision. If dynamic optics form excessive total add power, the user may not be able to see it at a medium distance when the dynamic lens is disabled. In addition, when dynamic optical activation, the user may have too much power in the mid-range viewing zone and may also not be able to see it at a medium distance. Dynamic optics To form too little total add power, the combined lens can have excessive unwanted astigmatism.

When dynamic optics include a blending zone, dynamic optics may be required to be wide enough to ensure that at least a portion of the blending zone is in the perimeter of the combined optics. In one embodiment of the invention, the dynamic optics may have a horizontal width of about 26 mm or greater. In another embodiment of the invention, the horizontal width of the dynamic optics can be between about 24 mm and about 40 mm. In another embodiment of the invention, the horizontal width of the dynamic optics is between about 30 mm and about 34 mm. If the dynamic optics is less than about 24 mm in width, when dynamic optical activation is initiated, the blending zone may create an interface with the user's vision and create excessive distortion and glare to the user. If the dynamic optics is greater than about 40 mm in width, it may be difficult to sharpen the combined lens into a spectacle frame shape. In most cases (but not in all cases), dynamic optics may have an elliptical shape with horizontal width when the dynamic optics are positioned such that their blending regions are at the mating point of the combined lens or below the mating point of the combined lens. The size is larger than its vertical height. When the dynamic optics are positioned such that their blending zone is above the mating point, the dynamic optics is typically (but not always) positioned such that the top perimeter edge of the dynamic optics is at least 8 mm above the mating point. It should be noted that non-electrically active dynamic optics can be placed to the peripheral edge of the combined lens. Additionally, the non-electroactive dynamic optics can be less than 24 mm in width.

In an embodiment of the invention, the dynamic optics are located at or above the mating point. The top perimeter edge of the dynamic optics can be between approximately 0 mm and 15 mm above the mating point. Dynamic optics can provide a distance between the wearer at mid-range, close range, or between medium and close distances when activated (near-middle) Distance) The power required to watch. This is due to the dynamic optics being located at or above the mating point. This will allow the user to have a corrected mid-range prescription when looking directly. In addition, due to the increasing area, the power continues to increase from the mating point down through the channel. When viewed through the channel, the user will have corrected near-medium and close prescription corrections. Thus, the user can in many cases eliminate the need to look down until or must raise their lower jaw until viewed through the mid-range viewing area of the lens. If the dynamic optics are vertically spaced from the top of the combined lens, the user can also view at a distance by utilizing a portion of the combined lens above the activated dynamic optics. When dynamic optics is disabled, the lens area at or near the mating point will return to the distant power of the lens.

In embodiments where the dynamic optics has a blending zone, positioning the dynamic optics above the mating point may be preferred. In this embodiment, when the dynamic optical activation is initiated, the user can pass through the mating point and look straight through the channel without observing through the blending zone. As mentioned above, the blending zone can introduce a high degree of unwanted astigmatism through which viewing can be uncomfortable. Thus, the user can use the combined optics in the activated state without experiencing a high degree of unwanted astigmatism because the user does not have to cross the edge or blending area of the dynamic optics.

In an embodiment of the invention, the dynamic optics are located below the mating point. The top perimeter edge of the dynamic optics can be between approximately 0 mm and 15 mm below the mating point. When the user is looking directly through the mating point, the remote prescription correction is provided by the combined optics because the dynamic optics does not optically transmit to this portion of the combined lens. However, when the user transfers the gaze through the channel from the point of cooperation, the user's eyes pass over the dynamic optical blending zone, using Can experience a high degree of useless astigmatism. This can be corrected in a number of ways as described in detail below.

The combination ophthalmic lens of the present invention comprises an optical design that considers: 1) the ophthalmic lens of the present invention satisfies the total near-distance addition power required for the wearer's near vision correction; 2) the unwanted astigmatism in the usable portion of the combined lens Or the degree of distortion; 3) the amount of optical add power formed by the increasing area; 4) the amount of power formed by dynamic optics when activated; 5) the length of the channel of the increasing area; 6) whether it is For (for example only) soft PAL design, hard PAL design, modified soft PAL design or modified hard PAL design, incremental area design; 7) dynamic optics width and length; and 8) dynamic optics vs. Increase the location of the area.

FIG. 1A shows an embodiment of a promotional lens 100 having a mating point 110 and an increasing area 120 . The progressive lens of Figure 1A is a low add power enhancement lens that is designed to provide the wearer with a desired power that is less than the wearer's desired close power power correction. For example, the added power of the PAL can be 50% of the proximity power correction. The distance from the mating point along the lens axis AA to the point on the lens where the power is within 85% of the power to be added is referred to as the channel length. The channel length is represented as distance D in Figure 1A . The value of the distance D can vary depending on a number of factors, such as the frame style (the lens will be edged to conform to the frame), the amount of power required, and the desired channel width. In one embodiment of the invention, the distance D is between about 11 mm and about 20 mm. In another embodiment of the invention, the distance D is between about 14 mm and about 18 mm.

Figure 1B shows a plot of power 130 taken along axis AA along the cross section of the lens of Figure 1A . The x-axis of the graph represents the distance along the central axis AA of the lens. The y-axis of the graph represents the amount of power in the lens. The power shown in the graph begins at the mating point. The power at or before the mating point may be from about +0.00 D to about +0.12 D (i.e., approximately no power) or may have positive or negative diopter as desired by the user's long distance prescription. Figure 1B shows a lens that does not have power before the mating point or at the mating point. After the mating point, the power continues to increase to the maximum power. For a certain length of the lens along the axis AA, the maximum power can continue to exist. Figure 1B shows that the maximum power persists, which is manifested as a steady state of power. Figure 1B also shows the distance D that occurs before the maximum power. After the maximum power steady state, the power can then continue to decrease until the desired power. The desired power may be any power less than the maximum power and may be equal to the power at the mating point. Figure 1B shows that the power is continuously reduced after the maximum power.

In one embodiment of the invention, the increasing area may be a raised surface on the front surface of the lens and the dynamic optics may be embedded inside the lens. In another embodiment of the invention, the increasing area may be a promoting surface on the rear surface of the lens and the dynamic optics may be embedded inside the lens. In another embodiment of the invention, the increasing area may be two promoting surfaces, one of which is located on the front surface of the lens and the second surface is located on the rear surface of the lens (such as the surface of the dual surface enhancing lens) and dynamic optically Embedded in the interior of the lens. In its In his embodiment of the invention, the increasing regions may not be produced by geometric surfaces, but may be generated by a refractive index gradient. This embodiment will allow the two surfaces of the lens to resemble the surface used on a single focus lens. The refractive index gradient providing the increasing region may be located inside the lens or on the surface of the lens.

An important advantage of the present invention as described above is that the wearer always has a corrected mid-range and long-range vision power even when dynamic optics is in a disabled state. Thus, the only control mechanism that may be required is a member for selectively activating dynamic optics when the wearer requires proper proximity power. This effect is provided by a low add power PAL having an add power that provides a power less than the user's prescription close distance at a close distance, and further, this low add power is close to the wearer The medium distance observation requires correction of the prescription power. When the dynamic optics are activated, the wearer's close-range power focusing needs to be met.

This greatly simplifies the sensor set required to control the lens. In fact, all that is needed is an inductive device that detects whether the user is focusing beyond the medium distance. Dynamic optics can be initiated if the user is focused closer than a long distance. Dynamic optics can be disabled if the user is not focusing closer than the distance. The device can be a simple tilt switch, manual switch or range finder.

In an embodiment of the invention, a small amount of transient delay can be placed in the control system such that the patient's eyes cross the peripheral edge points of the dynamic optics prior to dynamic optical activation. This allows the wearer to avoid any annoying useless distortion effects that can be caused by viewing through the peripheral edges of the dynamic optics. This embodiment may be beneficial when dynamic optics include blending zones. By way of example only, when the observer’s line of sight observes a distant object to a close distance As the object moves, the wearer's eyes will turn to the close viewing area on the peripheral edge of the dynamic optics. In this case, the dynamic optics will not start until the wearer's line of sight has crossed the dynamic optical peripheral edge and into the close viewing zone. This occurs by delaying the start of dynamic optics to allow the wearer's line of sight to cross the perimeter edge. If the activation of the dynamic optics is not temporarily delayed and instead is initiated before the wearer's line of sight crosses the peripheral edge, the wearer can experience a high degree of unwanted astigmatism as viewed through the peripheral edge. This embodiment of the invention is typically utilized when the peripheral edge of the dynamic optics is at or below the mating point of the combined lens. In other embodiments of the invention, the peripheral edge of the dynamic optics may be located above the mating point of the combined lens and thus, in many cases, the delay may not be required, as the wearer observes between mid and close distances The line of sight never crosses the peripheral edge of the dynamic optics.

In other embodiments of the present invention, the dynamic optical enhancement lens and blending region can be designed such that in the region where the two overlap, the unwanted astigmatism in the blending region at least partially offsets some of the unwanted astigmatism in the PAL. some. This effect is comparable to a two-sided PAL in which unwanted astigmatism of one surface is designed to counteract some of the unwanted astigmatism of the other surface.

In one embodiment of the invention, it may be desirable to increase the size of the dynamic optics and position the dynamic optics such that the top perimeter edge of the dynamic optics is above the mating point of the lens. Add low power 2A shows a combination of 220 and promote a more dynamic optical lens 200 embodiment, the dynamic optical via 220 disposed such that the top peripheral edge of the dynamic optical 250 is located above the fitting point of the lens 210. In an embodiment of the invention, the larger dynamic optics have a diameter between about 24 mm and about 40 mm. The vertical shift of the dynamic optics relative to the lens mating point is represented by the distance d. In one embodiment of the invention, the distance d is in the range of from about 0 mm to about half the diameter of the dynamic optics. In another embodiment of the invention, the distance d is the distance between about one-eighth of the dynamic optics and three-eighths of the diameter of the dynamic optics. 2B shows an embodiment having a combined optical power of one of 230, since the region 240 increasing the dynamic optical optical transmission, thereby forming a composition of this optical power 230. Lens 200 can have a reduced channel length. In one embodiment of the invention, the channel length is between about 11 mm and about 20 mm. In another embodiment of the invention, the channel length is between about 14 mm and about 18 mm.

In the embodiment of the invention illustrated in Figures 2A and 2B , when dynamic optical activation occurs, the wearer has corrected mid-range vision when looking directly at the lens because the lens has a low add power PAL and the dynamic optics is above the mating point. As the wearer's eyes move below the channel, the wearer also has a corrected near-middle distance. Finally, the wearer has corrected near vision in the region of the combined lens in which the dynamic optics and the power of the increasing region are combined to form the desired near viewing distance correction. This is an advantageous method of combining dynamic optics with increasing areas because the computer uses primarily mid-observation distance tasks and observes the observation distance task in the computer screen for a large number of people viewing in a direct or slightly downward viewing position. In the disabled state, the area of the lens above the mating point and close to the mating point allows for the use of weak enhancement power below the mating point for distance vision observation correction. The maximum power of the increasing region forms about half of the close power required by the wearer and dynamically optically forms the remainder of the power required for clear near vision.

3A-3C illustrate an embodiment of the invention in which dynamic optics 320 are placed within lens 300 and incremental regions 310 are placed on the rear surface of the lens. This post-enhancement surface can be placed on the lens during processing of the semi-trimmed lens blank with integrated dynamic optics by a manufacturing process known as freeform. In another embodiment of the invention, the increasing area is located on the front surface of the semi-trimmed lens blank. Semi-trimming the lens blank with dynamic optics to properly align the dynamic optics with the enhanced surface curvature. The semi-trimmed lens blank is then processed by conventional surface processing, grinding, edging, and mounting into the eyeglass frame.

As illustrated in FIG. 3A , when dynamic optics is disabled, the optical power obtained by the wearer's eye 340 through the line of sight of the mating point provides the wearer with corrected distance vision 330 . As illustrated in Figure 3B , when dynamic optical activation is initiated, the optical power obtained by the wearer's eye through the line of sight of the mating point provides the wearer with a corrected mid-range focus power 331 . As the wearer moves its gaze below the channel (as shown in Figures 3B-3C ), the combined optics of the dynamic optics and the enhanced surface provides a substantially continuous power transition from one of the mid-range focus to the close focus. Thus, as illustrated in Figure 3C , upon dynamic optical activation, the wearer is provided with a corrected close focus focus 332 along the power taken from the wearer's eye through the line of sight of the close viewing area. A major advantage of this embodiment of the invention may be that the control system only needs to determine if the wearer is looking at a distance. In this case of distance observation, dynamic optics can remain disabled. In embodiments where a ranging device is used, the ranging system only needs to determine if the object is closer to the eye than the wearer. In this case, dynamic optics will be activated to provide combined power, allowing simultaneous mid-range and close-range power correction. Another major advantage of this embodiment of the invention is that when dynamic optical activation, such as when the user views from a remote portion of the lens to a close portion of the lens and a distance from the close portion of the lens to the lens For partial observation, the eye does not need to cross or cross the upper edge of the dynamic optics. If dynamic optics have its uppermost edge below the fit point, the eye must pass over or pass through the upper edge when viewed from a long distance to a close distance or from a close distance to a long distance. However, embodiments of the present invention may allow the dynamic optics to be positioned below the mating point such that the eye does not cross the uppermost edge of the dynamic optics. This embodiment may allow for other advantages regarding visual performance and ergonomics.

Although Figures 3A-3C illustrate enhanced surface areas on the back surface, they may also be placed on the front surface of the lens or on the front and back surfaces of the lens when dynamic optics can be located within the lens. In addition, although the dynamic optics are illustrated as being located inside the lens, if they are made of a curved substrate and covered by an ophthalmic cover material, they may also be placed on the surface of the lens. By using a dynamic optics with known power in combination with different PAL lenses each having a different add power, it is possible to substantially reduce the number of dynamic optical half-trimmed blank SKUs. For example, +0.75D dynamic optics can be combined with a +0.50D, +0.75D, or +1.00D progressive region or surface to produce an add power of +1.25D, +1.50D, or +1.75D, respectively. Or +1.00D dynamic optics can be combined with a +0.75D or +1.00D incremental region or surface to produce an add power of +1.75 or +2.00D. In addition, the increasing area can be optimized to account for wearer characteristics, such as patient distance power and eye path through the lens, and incremental areas are added to provide dynamic electroactive optics that provide approximately half of the required read corrections. The facts. Similarly, the opposite can work well. For example, a +1.00D increasing region or surface can be combined with +0.75D, +1.00D, +1.25D, or +1.50D dynamic optics to produce +1.75D, +2.00D, +2.25D, or +2.50D. Combine the added power.

4A illustrates another embodiment of the present invention whereby the low add power enhancement lens 400 is combined with dynamic optics 420 that is larger than the incremental region and/or channel 430 . In this embodiment, the unwanted distortion 450 from the dynamic optical blending zone is outside of the mating point 410 and the enhancement channel 430 and the read zone 440 . 4B-4D are graphs showing the power taken along the axis AA of the lens cross section of Fig. 4A . The x-axis of each graph represents the distance along the central axis AA of the lens. The y-axis of each graph represents the amount of power in the lens. The power at or before the mating point may be from about +0.00 D to about +0.12 D (i.e., approximately no power) or may have positive or negative diopter as desired by the user's long distance prescription. Figure 4B shows a lens that does not have power before the mating point or at the mating point. Figure 4B shows the power 460 provided by the fixed promotional surface or region taken along axis AA of Figure 4A . Figure 4C shows the power 470 provided by the dynamic optical start taken along axis AA of Figure 4A . Finally, Figure 4D shows the combined power of the dynamic electroactive optics and the fixed incremental regions taken along axis AA of Figure 4A . As is clear from the figure, the top and bottom distortion blending regions 450 of the dynamic electroactive optics are outside the mating point 410 and the enhanced read zone 440 and channel 430 .

5A and 5B illustrate an embodiment in which dynamic optics 520 are positioned below mating point 510 of low add power enhancement lens 500 . In FIG. 5A , the position of the dynamic electroactive optical blending zone results in significant total distortion 550 as the wearer's eyes track down the augmentation aisle 530 . In some embodiments of the invention, this is resolved by delaying the activation of dynamic optics until the wearer's eye passes over the upper edge of the dynamic optical blending zone. Figure 5B shows the power along axis AA of Figure 5A . The visible distortion region 550 overlaps the add power of the lens directly below the mating point and further exhibits the need to delay the activation of dynamic optics until the eye passes over this region. Once the eye passes over this area and enters, for example, the read zone 540 , there is no significant optical distortion. In one embodiment of the invention, an extremely narrow blending zone of 1 mm to 2 mm can be provided to allow the eye to quickly cross this zone. In an embodiment of the invention, the horizontal width of the dynamic optics may be between about 24 mm and about 40 mm. In another embodiment of the invention, the horizontal width of the dynamic optics may be between about 30 mm and about 34 mm. In another embodiment of the invention, the dynamic optics may have a horizontal width of about 32 mm. Thus, in some embodiments of the invention, the shape of the dynamic optics is more similar to an elliptical shape, wherein the horizontal measurement is wider than the vertical measurement.

Figures 6A-6C show an embodiment of dynamic optics. In the illustrated embodiment, the dynamic optics has an elliptical shape and a width of between about 26 mm and about 32 mm. Showcase the various heights of dynamic optics. Figure 6A shows dynamic optics at a height of about 14 mm. Figure 6B shows dynamic optics with a height of about 19 mm. Figure 6C shows dynamic optics with a height of approximately 24 mm.

7A-7K show a map of unwanted astigmatism of a progressive lens comparing prior art states with an embodiment of the present invention including a low add power enhancement lens and dynamic optics. The Visionix current state of the art PowerMapVM ^2000TM "High Precision Lens Analyzer" is used to measure and produce a map of unwanted astigmatism, which is used by lens manufacturers when manufacturing or designing PAL. Measure and verify the same equipment for the quality control of its own PAL and the purpose of marketing regulations. A low add power PAL and a spherical lens are used to mimic an embodiment of the invention. The spherical lens has a power equal to the dynamic optical power of the activation of a given power extending to the periphery of the lens.

FIG. 7A Comparison Essilor Varilux Physio ^TM + 1.25D PAL including Essilor Varilux Physio ^TM + 1.00D PAL and + 0.25D to form a dynamic optical add power of + Example of the present invention, the total of 1.25D. FIG. 7B Comparison Essilor Varilux Physio ^TM 1.50D PAL including Essilor Varilux Physio ^TM + 0.75D PAL + and + 0.75D to form a dynamic optical embodiment of the present invention to add the total power of + 1.50D. FIG. 7C Comparative Essilor Varilux Physio ^TM + 1.75D PAL and to form comprises Essilor Varilux Physio ^TM + 1.00D PAL and + 0.75D Example dynamic optical add power of + 1.75D of the total of the present invention. FIG. 7D Comparative Essilor Varilux Physio ^TM + 2.00D PAL and to form comprises Essilor Varilux Physio ^TM + 1.00D PAL and + 1.00D Example dynamic optical add power of + 2.00D of the total of the present invention. FIG. 7E Comparative Essilor Varilux Physio ^TM + 2.00D PAL including Essilor Varilux Physio ^TM + 0.75D PAL and + 1.25D to form a dynamic optical add power of + 2.00D embodiment of the present invention the total. FIG. 7F Comparative Essilor Varilux Physio ^TM + 2.25D PAL including Essilor Varilux Physio ^TM + 1.00D PAL and to form a dynamic optical + 1.25D + Example of the present invention to add the power of a total of 2.25D. FIG. 7G Comparative Essilor Varilux Physio ^TM + 2.25D PAL including Essilor Varilux Physio ^TM + 0.75D PAL and + 1.50D to form a dynamic optical add power of + 2.25D embodiment of the present invention the total. FIG. 7H Comparative Essilor Varilux Physio ^TM + 2.50D PAL and to form comprises Essilor Varilux Physio ^TM + 1.25D PAL and + 1.25D Example dynamic optical add power of + 2.50D of the total of the present invention. FIG. 7I Comparative Essilor Varilux Physio ^TM + 2.50D PAL and to form comprises Essilor Varilux Physio ^TM + 1.00D PAL and + 1.50D Example dynamic optical add power of + 2.50D of the total of the present invention. FIG. 7J Comparative Essilor Varilux Physio ^TM + 2.75D PAL and to form comprises Essilor Varilux Physio ^TM + 1.25D PAL and + 1.50D Example dynamic optical add power of + 2.75D of the total of the present invention. FIG. 7K Comparative Essilor Varilux Physio ^TM + 3.00D PAL including Essilor Varilux Physio ^TM + 1.50D PAL and to form a dynamic optical 1.50D + + Example of the present invention to add the power of a total of 3.00D.

Figures 7A-7K clearly show a significant improvement in the enhanced lens made by the method of the present invention over the state of the art. Embodiments of the invention shown in Figures 7A-7K have significantly less distortion, significantly less unwanted astigmatism, wider channel width, and lower added focus when compared to PAL lenses of the current state of the art. Degrees and higher added focal lengths are slightly shorter. The method of the present invention can provide such significant improvements while allowing the user to see at a distance, a medium distance, and a close distance, as with conventional PAL lenses.

The invention further encompasses that depending on the wearer's pupil distance, the fit point, and the size of the frame edge being cut, dynamic optics may need to be eccentric perpendicular to the incremental region and, in some cases, horizontal. However, in all cases, when dynamic optics are eccentric with respect to the increasing region, it remains optically transmitted with the region when the dynamic optics are activated. It should be noted that the vertical dimension of the edge or edge of the frame determines this amount of eccentricity in many cases (but not in all cases).

The ophthalmic lens of the present invention allows an optical transmission of 88% or higher. If an anti-reflective coating is applied to both surfaces of the ophthalmic lens, the optical transmission will exceed 90%. The ophthalmic lens of the present invention has an optical efficiency of 90% or better. The ophthalmic lens of the present invention can be coated by a variety of well known lens treatments, such as, for example, antireflective coatings, scratch resistant coatings, cushioning coatings, hydrophobic coatings, and UV coatings. The UV coating can be applied to an ophthalmic lens or dynamic optics. In embodiments where dynamic optics is liquid crystal based electroactive optics, the ultraviolet coating prevents the liquid crystal from being damaged by ultraviolet light, which may damage the liquid crystal over time. The ophthalmic lens of the present invention can also be edged to the desired shape of the eyeglass frame or drilled around its perimeter to facilitate (by way of example only) installation in an edgeless eyeglass frame.

Additionally, it should be noted that the present invention encompasses all ophthalmic lenses; invisible eyes, intraocular lenses, corneal coverings, corneal inlays, and ophthalmic lenses.

100‧‧‧Promotion lens

110‧‧‧ Matching points

120‧‧‧increasing area

130‧‧‧Power

200‧‧‧Low added power enhancement lens

210‧‧‧ Matching points

220‧‧‧ Dynamic Optics

230‧‧‧ Combination power

240‧‧‧increasing area

250‧‧‧Top perimeter edge

300‧‧‧ lens

310‧‧‧increasing area

320‧‧‧ Dynamic Optics

330‧‧‧ Correcting distance vision

331‧‧‧corrected mid-range focus

332‧‧‧Correct close focus focus

340‧‧‧ wearer's eyes

400‧‧‧Low added power enhancement lens

410‧‧‧ Matching points

420‧‧‧ Dynamic Optics

430‧‧‧increasing areas and/or channels

440‧‧‧Reading area

450‧‧‧Useless distortion/top and bottom distortion blending zone

460‧‧ ‧ power

470‧‧‧ power

AA‧‧‧ lens axis

D‧‧‧distance

D‧‧‧Distance

1A shows an embodiment of a low add power enhancement lens having a mating point and an increasing area; FIG. 1B is a graph showing the power 130 taken along the axis AA of the cross section of the lens of FIG. 1A; 2A shows an embodiment of the invention having a low add power enhancement lens in combination with a larger dynamic optic arrangement such that one portion of the dynamic optics is located above one of the mating points of the lens; FIG. 2B shows A combined lens of Figure 2A due to the optical power of the dynamic optics and the increasing area; Figure 3A shows a low add power enhancing lens and a dynamic optical In one embodiment of the invention, the dynamic optics are placed such that a portion of the dynamic optics is above the mating point of the lens. 3A shows that when dynamic optics is disabled, the power taken along the line of sight of the wearer's eye through the mating point provides corrected distance vision to the wearer; FIG. 3B shows the lens of FIG. 3A. Figure 3B shows the power achieved by the line of sight from the wearer's eye through the mating point providing a corrected mid-range focus when the dynamic optical activation is achieved; Figure 3C shows the lens of Figure 3A. Figure 3C shows that when the dynamic optical start-up, the power taken along the line of sight of the wearer's eye through the close-range viewing zone provides the wearer with a corrected close-range focus; Figure 4A shows a low combination with dynamic optics. In an embodiment of the invention in which a power enhancement lens is added, the dynamic optics are larger than the increasing area and/or the channel and above the mating point of the lens; and FIG. 4B shows the fixed surface or area obtained by the fixed axis along the axis AA of FIG. 4A. The power provided; Figure 4C shows the power provided by dynamic optics at startup along axis AA of Figure 4A; Figure 4D shows the dynamic electroactive optics taken along axis AA of Figure 4A The combined power of the fixed increasing area. 4D shows the top and bottom distortion blending regions of the dynamic electroactive optics at the mating point and the enhanced read zone and the exterior of the channel; FIG. 5A shows an embodiment of the invention in which dynamic optics are located at the mating point of the low add power enhancement lens. Bottom; FIG. 5B shows the power taken along axis AA of FIG. 5A; FIGS. 6A-6C show various embodiments of the size of dynamic optics; 7A-7K show a map of unwanted astigmatism of a progressive lens comparing prior art states with an embodiment of the present invention including a low add power enhancement lens and dynamic optics.

100‧‧‧Promotion lens

110‧‧‧ Matching points

120‧‧‧increasing area

AA‧‧‧ lens axis

D‧‧‧Distance

Claims (43)

An ophthalmic lens for a user, comprising: an increasing area, wherein the increasing area has an added power; and an adjustable dynamic optics for optical transmission with the increasing area, when Adjustable dynamic optics are adjusted with the application of electrical energy, mechanical energy or force having an adjustable power, and the adjustable dynamic optics is added when the added power of the increasing region is added The position of the power is approximately equal to the proximity of the user to add power vision correction. The ophthalmic lens of claim 1, wherein the add power is less than the close proximity of the user to add a power vision correction. The ophthalmic lens of claim 1, wherein the add power is about 50% of the proximity correction of the power of the user. The ophthalmic lens of claim 1, wherein the add power is between about 30% and about 70% of the close focus adjustment of the user. The ophthalmic lens of claim 1, wherein the increasing area is on a front surface of one of the lenses. The ophthalmic lens of claim 1, wherein the increasing region is located on a rear surface of one of the lenses. The ophthalmic lens of claim 1, wherein the increasing region is embedded in the lens. The ophthalmic lens of claim 1, wherein the dynamic optics is located on a front surface of the lens. The ophthalmic lens of claim 1, wherein the dynamic optics are located in the lens On the back surface. The ophthalmic lens of claim 1 wherein the dynamic optics are embedded within the lens. The ophthalmic lens of claim 1, wherein the dynamic optical system is an electroactive optical. The ophthalmic lens of claim 1, wherein the dynamic optics is a meniscus lens. The ophthalmic lens of claim 1, wherein the dynamic optics is a fluid lens. The ophthalmic lens of claim 1, wherein the dynamic optical system has movable dynamic optics of at least one moving component. The ophthalmic lens of claim 1, wherein the dynamic optics is a gas lens. The ophthalmic lens of claim 1, wherein the dynamic optical system has a thin film lens of a deformable film. The ophthalmic lens of claim 1, wherein the additive power is between about +0.50 diopters and about +1.50 diopters. The ophthalmic lens of claim 1, wherein the power is between about +0.50 diopters and about +2.25 diopters. The ophthalmic lens of claim 1, wherein the dynamic optics has a width of between about 24 mm and about 40 mm. The ophthalmic lens of claim 1, wherein the increasing region has a channel having a length of between about 11 mm and about 20 mm. The ophthalmic lens of claim 1, wherein the lens has a mating point, and Wherein one of the dynamic peripheral top peripheral edges is located within about 15 mm of the mating point. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein at least a portion of one of the top peripheral edges of the dynamic optics is above the mating point of the lens. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein a top peripheral edge of the dynamic optics is between about 0 mm above the mating point of the lens and about half of the vertical length of the dynamic optics. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein a top peripheral edge of the dynamic optics is located above the mating point of the lens by about one eighth of the vertical length of the dynamic optics The vertical length of the dynamic optics is between approximately eight-eighths. The ophthalmic lens of claim 1, wherein the dynamic lens is activated until the user's eye passes over a top peripheral edge of the dynamic optics. The ophthalmic lens of claim 1 further comprising a blending zone associated with the dynamic optics. The ophthalmic lens of claim 1, wherein the power is adjustable between two or more non-zero powers. The ophthalmic lens of claim 1, wherein the power is adjustable between a positive power and a substantially non-power. The ophthalmic lens of claim 1, wherein the dynamic optics can be activated and disabled. The ophthalmic lens of claim 1, wherein the dynamic optics and the increasing area interval. The ophthalmic lens of claim 1, further comprising an inductor for controlling the power. The ophthalmic lens of claim 31, wherein the sensor disables the dynamic optics when the user observes over a medium distance. The ophthalmic lens of claim 31, wherein the sensor activates the dynamic optics when the user is viewed closer than a distance. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein when the dynamic optical activation is performed, a medium distance vision correction is provided to the user when the user views through the mating point. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein when the dynamic optics is disabled, a distance vision correction is provided to the user when the user views through the mating point. The ophthalmic lens of claim 1, wherein the dynamic optics is eccentric with respect to the increasing region. The ophthalmic lens of claim 1, wherein the lens is formed by half trimming the blank. The ophthalmic lens of claim 1, wherein a top peripheral edge of the dynamic optics is above the enhanced power region. The ophthalmic lens of claim 1, wherein the lens has a mating point, and wherein at least a portion of one of the top peripheral edges of the dynamic optics is below the mating point. The ophthalmic lens of claim 11, wherein the electroactive optics comprises a surface convex and concave diffractive element. The ophthalmic lens of claim 11, wherein the electroactive optics comprises a pixelated electrode. The ophthalmic lens of claim 11, wherein the electroactive optics comprises a patterned electrode. The ophthalmic lens of claim 11, wherein the electroactive optics has an elliptical shape.