CN105388609B - A kind of optical eyepiece camera lens and wear display equipment - Google Patents
A kind of optical eyepiece camera lens and wear display equipment Download PDFInfo
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- CN105388609B CN105388609B CN201510783264.3A CN201510783264A CN105388609B CN 105388609 B CN105388609 B CN 105388609B CN 201510783264 A CN201510783264 A CN 201510783264A CN 105388609 B CN105388609 B CN 105388609B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 148
- 238000003384 imaging method Methods 0.000 claims abstract description 11
- 238000004904 shortening Methods 0.000 abstract description 5
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- 238000010586 diagram Methods 0.000 description 27
- 210000001747 pupil Anatomy 0.000 description 15
- 239000011521 glass Substances 0.000 description 10
- 230000002349 favourable effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 201000009310 astigmatism Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
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- 230000000007 visual effect Effects 0.000 description 2
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- 239000000839 emulsion Substances 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
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- 210000003128 head Anatomy 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/001—Eyepieces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
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- Optics & Photonics (AREA)
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Abstract
The invention discloses a kind of optical eyepiece camera lens and wear display equipment, from human eye observation side to image source along optical axis sequentially including diaphragm, the first lens, the second lens and the third lens, and first lens, the second lens and the third lens all have refractive index, and one is respectively included towards observation side and the image side surface that makes imaging light pass through and one towards image source and the object side that makes imaging light pass through；First lens and the third lens are positive lens；Second lens are negative lens；First lens are biconvex lens；Second lens are plano-concave lens, biconcave lens or meniscus shaped lens；The third lens are non-spherical lens.The present invention provides one kind under conditions of shortening lens system length, still is able to possess the optical eyepiece camera lens of good optical property and wears display equipment.
Description
Technical field
The present invention relates to a kind of optical eyepiece camera lenses, more particularly to a kind of light for wearing display equipment for micro display screen
It learns eyepiece camera lens and wears display equipment.
Background technology
Display equipment is worn since the features such as small, light-weight extensively gets consumer reception.The especially big visual field of equipment
Angle can build the visual effect of the shock of an immersion to user, allow user as being in the cinema screening Room
It is general to watch film.
Large-sized OLED (the Organic of the widely used monoblock of image source devices for wearing display equipment of the prior art
Light-Emitting Diode) and LCD (Liquid Crystal Display) screen, while the camera lens for use of arranging in pairs or groups has
Short working distance, short emergent pupil are away from, characteristics such as long-focus, low magnifying power, but screen resolution is average to then showing slightly insufficient on simple eye.And
The digital light processing of another kind of display screen device such as DLP (Digital Light Procession) and LCOS (Liquid
Crystal on Silicon) the attached silicon of liquid crystal, though small size, high-resolution display screen can be provided, because need in addition provide photograph
It is bright to show, to cause the camera lens arranged in pairs or groups with it must be with the smaller limitation of longer working distance and field angle.
For the big field angle eyepiece for wearing display equipment, ratio chromatism, the curvature of field, astigmatism are all to influence image quality
Aberration still to be taken into account when shortening the length of optical eyepiece camera lens good in order to avoid imaging effect and quality decline
Optical property.
Chinese patent publication No. CN104635333A, CN104536129A, CN101887166A disclose respectively three kinds by
The optical eyepiece camera lens that three pieces lens are formed, but there are still the emergent pupils of camera lens to ask away from shorter, working distance is shorter, magnifying power is small etc.
Topic, wherein Chinese patent publication No. CN101887166A camera lens emergent pupil distance degree is unfavorable for the use of wearing spectacles within 11mm
Family uses.
Currently on the market wear display equipment, meet user's difference to reach by adjusting eyepiece and screen spacing and bend
The use demand of luminosity, but without it is a can be when user wears for a long time, while solving the problems, such as myopia, long sight and astigmatism,
These problems influence whether that user's is healthy with eye.
Therefore when arranging in pairs or groups high pixel small size display screen, how to effectively shorten optical lens system length and protect
It holds long working distance, grow interpupillary distance, while still being able to maintain enough optical properties, be always industry project urgently to be resolved hurrily.
Invention content
It is an object of the invention to overcome the deficiency of the prior art, provide a kind of in the condition for shortening lens system length
Under, it still is able to possess the optical eyepiece camera lens of good optical property.
The technical solution adopted by the present invention to solve the technical problems is：A kind of optical eyepiece camera lens, from human eye observation side
To image source along optical axis sequentially including diaphragm, the first lens, the second lens and the third lens, and first lens, second are thoroughly
Mirror and the third lens all have refractive index, and respectively include one towards observation side and the image side surface for making imaging light pass through and a court
To image source and the object side that makes imaging light pass through；
And first lens, the second lens, the third lens meet it is claimed below：
Nd1>1.88 Nd2>1.94 Nd3>1.49；Vd1<40.9 Vd2<18.0 Vd3<57.4；
Wherein, Nd1, Nd2, Nd3 indicate respectively the first lens, the second lens, the third lens d lines refractive index；Vd1、
Vd2, Vd3 indicate respectively the first lens, the second lens, the third lens d lines abbe number；
First lens, the second lens, the third lens meet following relationship：
1)0.90<f1/f<1.40；2)1.40<|f2/f|<2.20；3)1.10<f3/f<2.00；
Wherein, the focal length of first lens is f1, and the focal length of second lens is f2, the focal length of the third lens is f3,
System focal length is f.
As a preferred embodiment, first lens and the third lens are positive lens；Second lens are negative lens.
As a preferred embodiment, first lens are biconvex lens；Second lens be plano-concave lens, biconcave lens or
Meniscus shaped lens；The third lens are non-spherical lens.
As a preferred embodiment, the object side of the third lens and the aspherical expression formula of image side surface are：
Wherein, Y is the point in aspheric curve at a distance from optical axis I；Z is aspherical depth (apart from light on aspherical
Axis I is the point of Y, with the section for being tangential on vertex on aspherical optical axis I, vertical range between the two)；R is the song of lens surface
Rate radius；K is conical surface coefficient (conic constant)；a2iFor 2i rank asphericity coefficients.
As a preferred embodiment, distance of the third lens object side to the described image source face on optical axis is BFL, it is described
Thickness of the third lens on optical axis is T3, and second lens are G23 with the air gap of the third lens on optical axis,
And meet following relationship：BFL/T3<3.00；T3/G23≦71；BFL/G23≦105.
As a preferred embodiment, first lens and second lens are mutually bonded by light-sensitive emulsion；First lens
Synthesized with second lens glue cemented doublet focal length be f12, thickness of first lens on optical axis be T1, described second
Thickness of the lens on optical axis is T2, and the cemented doublet that first lens and second lens are composed is on optical axis
Thickness is T12, and also meets following relationship：T1/T2≧3.5；T12=T1+T2；T12/T3≧0.75；1.50<f12/f<
3.20。
As a preferred embodiment, the material of first lens and the second lens is glass, the material of the third lens is
Plastics.
As a preferred embodiment, the image side surface of first lens to distance of the described image source face on optical axis is TTL, institute
It is ALT to state the thickness summation of the first lens, the second lens and the third lens on optical axis, and meets following relationship：BFL/TTL
≧0.30；ALT/TTL≦0.70；ALT/T12≧1.35.
The advantageous effect of optical eyepiece camera lens of the present invention is：First lens and the third lens are positive lens；It is described
Second lens are negative lens；First lens are biconvex lens；Second lens are plano-concave lens, biconcave lens or bent moon
Shape lens；The third lens are non-spherical lens；By the optical parameter of first lens, the second lens and the third lens
It selects and is collocated with each other, help to correct aberration, promote the image quality of the optical eyepiece camera lens.In addition, first lens with
Second lens are glass material, and larger refractive index can preferably transfer light；First lens and second lens are glued
As one group of balsaming lens, preferable corrective action can be carried out to aberration；The third lens are plastic material, can reduce and be manufactured into
Sheet and the weight for mitigating the optical eyepiece camera lens.
Therefore, another object of the present invention a kind of wearing display equipment providing using aforementioned optical eyepiece camera lens.
Then, of the invention to wear display equipment, including casing and the display module in the casing.
The display module includes such as the aforementioned optical eyepiece camera lens and being set to the figure of the optical eyepiece camera lens object side
Image source display screen.
As a preferred embodiment, the total length of the optical eyepiece camera lens is less than 45mm.The overall length of the optical eyepiece camera lens
Degree for by the diaphragm to the total length of the image source display of object side, including the reserved at least emergent pupil of 20mm away from.
As a preferred embodiment, the image side surface of the observation point and first lens for human eye observation of the eyepiece camera lens
Distance on optical axis is more than 20mm.
It is 0.37 inch of LCOS display screen of WXGA (1366*768) that the image source display, which selects display resolution, with biography
The micro display screen of system is compared, and the pixel dimension of the LCOS display screens is much smaller, can be effectively reduced and be amplified by optical eyepiece camera lens
The phenomenon that generating particle afterwards, improves user experience.
The advantageous effect that the present invention wears display equipment is：There is optical eyepiece above-mentioned by loading in the device
The display module of camera lens still is able to provide good optical property with the sharp eyepiece camera lens under conditions of shortening system length
Advantage, made in the case of not sacrificing optical property it is more slim it is light and handy wear display equipment, so that the present invention is had both good
Practical performance well and the structure design for contributing to light and shortization, to meet higher-quality consumption demand.
Invention is further described in detail with reference to the accompanying drawings and embodiments；But a kind of optical eyepiece mirror of the present invention
Head and wear display equipment be not limited to embodiment.
Description of the drawings
Fig. 1 is the configuration schematic diagram of the optical eyepiece camera lens of first embodiment of the invention；
Fig. 2 is the longitudinal spherical aberration of first embodiment of the invention and every aberration diagram；
Fig. 3 is the tabular drawing of the optical data of each lens of first embodiment of the invention；
Fig. 4 is the tabular drawing of the asphericity coefficient of each lens of first embodiment of the invention；
Fig. 5 is the configuration schematic diagram of the optical eyepiece camera lens of second embodiment of the invention；
Fig. 6 is the longitudinal spherical aberration of second embodiment of the invention and every aberration diagram；
Fig. 7 is the tabular drawing of the optical data of each lens of second embodiment of the invention；
Fig. 8 is the tabular drawing of the asphericity coefficient of each lens of second embodiment of the invention；
Fig. 9 is the configuration schematic diagram of the optical eyepiece camera lens of third embodiment of the invention；
Figure 10 is the longitudinal spherical aberration of third embodiment of the invention and every aberration diagram；
Figure 11 is the tabular drawing of the optical data of each lens of third embodiment of the invention；
Figure 12 is the tabular drawing of the asphericity coefficient of each lens of third embodiment of the invention；
Figure 13 is the configuration schematic diagram of the optical eyepiece camera lens of fourth embodiment of the invention；
Figure 14 is the longitudinal spherical aberration of fourth embodiment of the invention and every aberration diagram；
Figure 15 is the tabular drawing of the optical data of each lens of fourth embodiment of the invention；
Figure 16 is the tabular drawing of the asphericity coefficient of each lens of fourth embodiment of the invention；
Figure 17 is the configuration schematic diagram of the optical eyepiece camera lens of fifth embodiment of the invention；
Figure 18 is the longitudinal spherical aberration of fifth embodiment of the invention and every aberration diagram；
Figure 19 is the tabular drawing of the optical data of each lens of fifth embodiment of the invention；
Figure 20 is the tabular drawing of the asphericity coefficient of each lens of fifth embodiment of the invention；
Figure 21 is the configuration schematic diagram of the optical eyepiece camera lens of sixth embodiment of the invention；
Figure 22 is the longitudinal spherical aberration of sixth embodiment of the invention and every aberration diagram；
Figure 23 is the tabular drawing of the optical data of each lens of sixth embodiment of the invention；
Figure 24 is the tabular drawing of the asphericity coefficient of each lens of sixth embodiment of the invention；
Figure 25 is the configuration schematic diagram of the optical eyepiece camera lens of seventh embodiment of the invention；
Figure 26 is the longitudinal spherical aberration of seventh embodiment of the invention and every aberration diagram；
Figure 27 is the tabular drawing of the optical data of each lens of seventh embodiment of the invention；
Figure 28 is the tabular drawing of the asphericity coefficient of each lens of seventh embodiment of the invention；
Figure 29 is the configuration schematic diagram of the optical eyepiece camera lens of eighth embodiment of the invention；
Figure 30 is the longitudinal spherical aberration of eighth embodiment of the invention and every aberration diagram；
Figure 31 is the tabular drawing of the optical data of each lens of eighth embodiment of the invention；
Figure 32 is the tabular drawing of the asphericity coefficient of each lens of eighth embodiment of the invention；
Figure 33 is tabular drawing one of the first embodiment of the present invention to the optical parameter of the 8th embodiment；
Figure 34 is tabular drawing two of the first embodiment of the present invention to the optical parameter of the 8th embodiment.
Specific implementation mode
Before the present invention is described in detail, it shall be noted that in the following description content, similar component is with identical
Number indicate.
This specification says its " lens have positive refractive index (or negative refractive index) ", refers to the lens near optical axis
Region has for positive refractive index (or negative refractive index)." the object side (or image side surface) of lens has positioned at the convex surface in certain region
Portion's (or concave part) " refers to the region compared to radially close to the lateral area in the region, court is parallel to the direction of optical axis more
For " outwardly convex " (or " being recessed inwardly ")." optical axis near zone " refer to this only for imaging light by curved surface light
Axis near zone.In addition, the lens also include extension, with so that the lens group is loaded in optical eyepiece camera lens, preferably at
Picture light can't be by extension, and embodiment below is the extension for asking illustrative simplicity that part is omitted.
First embodiment
Refering to fig. 1 with Fig. 3,10 first embodiment of optical eyepiece camera lens of the present invention, from observation side to image source along optical axis I
Include sequentially diaphragm 2, the first lens 3, the second lens 4, the third lens 5 and protective glass 6.When what is sent out by display screen 100
Light enters optical eyepiece camera lens 10, via after protective glass 6, the third lens 5, the second lens 4, the first lens 3 and diaphragm
2, into human eye, and form the image of a upright amplification.Supplementary explanation, object side are directed towards the side of image source, and image side
It is directed towards the side of observer.
Wherein, the first lens 3, the second lens 4, the third lens 5 and protective glass 6 are all respectively provided with towards image side and make into
As light by image side surface 31,41,51,61, and towards object side and the object side 32,42,52,62 that makes imaging light pass through.
Wherein, image side surface 31,41 and object side 32,42 are all spherical surface.Image side surface 51 is aspherical with object side 52.
In addition, in order to meet the light-weighted demand of product, the first lens 3 and the second lens 4 are the glass for having high refractive index
Made by glass material, the third lens 5 are to have refractive index and be made by plastic material, but the first lens 3 and the second lens 4
Material is still not limited system.
First lens 3 are the lens of positive refractive index.The image side surface 31 of first lens 3 is convex surface, the object side of the first lens 3
32 be convex surface.Second lens 4 are the lens of negative refractive index.The image side surface 41 of second lens 4 is concave surface, the object side of the second lens 4
Face 42 is plane.The third lens 5 are the lens of positive refractive index, and the image side surface 51 of the third lens 5, which has, is located at optical axis I near zones
Convex surface part 511 and convex surface part 512 positioned at circumference near zone, the object side 52 of the third lens 5, which has, to be located near optical axis I
The convex surface part 521 in region and convex surface part 522 positioned at circumference near zone.
In the present first embodiment, only said lens have refractive index.
When usual human eye normal observation things, pupil diameter size is between 2-4mm, and for ease of statement, pupil is straight at present
Diameter takes mean value 3mm.
Other detailed optical data of this first embodiment as shown in figure 3, and this first embodiment total system focal length
(effective focal length, abbreviation EFL) is 12.71mm, half angle of view (half field of view, abbreviation HFOV)
For 20.5 °, exit pupil diameter 3mm, system length 40.34mm.Wherein, the system length refer to by diaphragm 2 position to
Image source face 100 on optical axis I between distance.
In addition, image side surface 51 and the object side 52 of the third lens 5, it is aspherical to amount to two faces, and this aspherical is
It is defined according to following equation：
Wherein：Y：Point in aspheric curve is at a distance from optical axis I；Z：Aspherical depth is (apart from optical axis I on aspherical
For the point of Y, with the section for being tangential on vertex on aspherical optical axis I, vertical range between the two)；R:The curvature of lens surface half
Diameter；K：Conical surface coefficient (conic constant)；a2i：2i rank asphericity coefficients.
Every asphericity coefficient of the image side surface 51 and object side 52 of the third lens 5 in formula (1) is as shown in Figure 4.Its
In, field number 51 indicates the asphericity coefficient that it is 5 image side surface 51 of the third lens in Fig. 4, and the rest may be inferred for other fields.
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this first embodiment between each important parameter
Show.
Wherein：T1 is thickness of first lens 3 on optical axis I；T2 is thickness of second lens 4 on optical axis I；T12 is
Thickness of the balsaming lens on optical axis I made of 4 gluing of first lens 3 and the second lens；T3 is the third lens 5 on optical axis I
Thickness；G23 is the air gap of second lens 4 to the third lens 5 on optical axis I；G3CG is that the third lens 5 arrive protective glass
6 the air gap on optical axis I；TCG is thickness of the protective glass 6 on optical axis I；GCD is that protective glass 6 arrives image source face
100 the air gap on optical axis I；ALT is that the thickness of the first lens 3, the second lens 4 and the third lens 5 on optical axis I is total
With i.e. the sum of T1, T2, T3；TTL is distance of the image side surface 31 of the first lens 3 to image source face 100 on optical axis I；BFL is
Distance of the object side 52 of the third lens 5 to image source face 100 on optical axis I, i.e. the sum of G3CG, TCG, GCD；FFL is diaphragm 2
To distance of the image source face 100 on optical axis I；F is the system focal length of optical eyepiece camera lens 10；F1 is the focal length of the first lens 3；
F2 is the focal length of the second lens 4；F12 is the focal length that the first lens 3 and the second lens 4 compose cemented doublet；F3 is that third is saturating
The focal length of mirror 5.
Coordinate again referring to Fig.2, (a's) illustrates distortion aberration of this first embodiment on image source face 100
(distortion aberration) (b) then illustrates that this first embodiment has on image source face 100 with the diagram of (c) respectively
The astigmatic image error (astigmatism aberration) in the direction climax noon (tangential) and the direction the sagitta of arc (sagittal)
Astigmatic image error, diagram (d) then illustrates longitudinal spherical aberration (the longitudinal spherical of this first embodiment
aberration).The distortion aberration diagram of Fig. 2 (a) then shows that the distortion aberration of this first embodiment maintains ± 2% range
It is interior, illustrate that the distortion aberration of this first embodiment has met the image quality requirement of optical system.In Fig. 2 (b) and two of (c)
In astigmatic image error diagram, three kinds represent focal length variations amount of the wavelength in entire field range and fall in ± 0.5mm, illustrate this
The optical system of one embodiment can effectively eliminate aberration.
And in the longitudinal spherical aberration pictorial image 2 (d) of this first embodiment, curve formed by each wavelength all very close to and to
It is intermediate close, illustrate that the Off-axis-light of each wavelength different height all concentrates near imaging point, by the curve of each wavelength
Skewness magnitude level can be seen that the imaging point deviation of the Off-axis-light of different height controls within the scope of ± 0.03mm, therefore this implementation
Example is obviously improved the spherical aberration of phase co-wavelength really, in addition, three kinds to represent the distance of wavelength to each other also fairly close, represent difference
The image space of wavelength light is quite concentrated, thus chromatic aberation is made also to be obviously improved.Illustrate this first embodiment accordingly
Compared to existing optical lens, under conditions of system length has foreshortened to 40.34mm while keeping emergent pupil away from 20mm, remain to carry
For preferable image quality, therefore this first embodiment can shorten lens length with reality under conditions of maintaining favorable optical performance
The product design being now more thinned.
Second embodiment
It is the second embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase refering to Fig. 5
Seemingly, wherein be in place of this second embodiment and the main difference of the first embodiment：The object side 42 of second lens 4 is
Convex surface (42), the object side 52 of the third lens 5 has the concave part 522 positioned at circumference near zone, herein it is noted that being
It clearly illustrates drawing, omits the label of the concave part and convex surface part that are identical with the first embodiment in Fig. 5.
Its detailed optical data as shown in fig. 7, and this second embodiment total system focal length be 12.69mm, partly regard
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 41.49mm.As shown in figure 8, being then this second embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this second embodiment between each important parameter
Show.
Refering to Fig. 6, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d) can for cooperation
Find out that this second embodiment can also maintain favorable optical performance.
3rd embodiment
It is the 3rd embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase refering to Fig. 9
Seemingly, the parameter between only each optical data, asphericity coefficient and lens 3,4,5 is more or less somewhat different, herein it is noted that
In order to clearly illustrate drawing, the label of the concave part and convex surface part that are identical with the first embodiment is omitted in Fig. 9.
Its detailed optical data is as shown in figure 11, and the total system focal length of this third embodiment is 12.22mm, is partly regarded
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 41.51mm.As shown in figure 12, then it is this third embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this third embodiment between each important parameter
Show.
Cooperation refering to fig. 10, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d)
It can be seen that this third embodiment can also maintain favorable optical performance.
Fourth embodiment
Refering to fig. 13, it is the fourth embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase
Seemingly, the parameter between only each optical data, asphericity coefficient and lens 3,4,5 is more or less somewhat different, herein it is noted that
In order to clearly illustrate drawing, the label of the concave part and convex surface part that are identical with the first embodiment is omitted in Figure 13.
Its detailed optical data is as shown in figure 15, and the total system focal length of this fourth embodiment is 12.71mm, is partly regarded
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 42.38mm.As shown in figure 16, then it is this fourth embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this fourth embodiment between each important parameter
Show.
Cooperation refering to fig. 14, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d)
It can be seen that this fourth embodiment can also maintain favorable optical performance.
5th embodiment
Refering to fig. 17, it is the 5th embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase
Seemingly, wherein be in place of this fifth embodiment and the main difference of the first embodiment：The object side 42 of second lens 4 is
The concave part being identical with the first embodiment is omitted in Figure 17 herein it is noted that in order to clearly illustrate drawing in concave surface (42)
With the label of convex surface part.
Its detailed optical data is as shown in figure 19, and the total system focal length of this fifth embodiment is 12.78mm, is partly regarded
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 41.51mm.As shown in figure 20, then it is this fifth embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this fifth embodiment between each important parameter
Show.
Cooperation refering to fig. 18, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d)
It can be seen that this fifth embodiment can also maintain favorable optical performance.
Sixth embodiment
It is the sixth embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase refering to Figure 21
Seemingly, wherein be in place of this sixth embodiment and the main difference of the first embodiment：The object side 42 of second lens 4 is
The concave part being identical with the first embodiment is omitted in Figure 21 herein it is noted that in order to clearly illustrate drawing in convex surface (42)
With the label of convex surface part.
Its detailed optical data is as shown in figure 23, and the total system focal length of this sixth embodiment is 12.72mm, is partly regarded
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 43.96mm.As shown in figure 24, then it is this sixth embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this sixth embodiment between each important parameter
Show.
Cooperation is refering to Figure 22, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d)
It can be seen that this sixth embodiment can also maintain favorable optical performance.
7th embodiment
It is the 7th embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase refering to Figure 25
Seemingly, the parameter between only each optical data, asphericity coefficient and lens 3,4,5 is more or less somewhat different, herein it is noted that
In order to clearly illustrate drawing, the label of the concave part and convex surface part that are identical with the first embodiment is omitted in Figure 25.
Its detailed optical data is as shown in figure 27, and the total system focal length of this 7th embodiment is 12.74mm, is partly regarded
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 44.31mm.As shown in figure 28, then it is this 7th embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this 7th embodiment between each important parameter
Show.
Cooperation is refering to Figure 26, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d)
It can be seen that this 7th embodiment can also maintain favorable optical performance.
8th embodiment
It is the 8th embodiment of optical eyepiece camera lens 10 of the present invention, with the first embodiment substantially phase refering to Figure 29
Seemingly, wherein be in place of this 8th embodiment and the main difference of the first embodiment：The image side surface 51 of the third lens 5 is
Concave surface, and with the concave part 511 positioned at optical axis I near zones, the object side 52 of the third lens 5 is convex surface, and has and be located at
The concave part 522 of circumference near zone is omitted in Figure 29 with first in fact herein it is noted that in order to clearly illustrate drawing
Apply the label of example identical concave part and convex surface part.
Its detailed optical data is as shown in figure 31, and the total system focal length of this 8th embodiment is 12.70mm, is partly regarded
Angle (HFOV) is 20.5 °, exit pupil diameter 3mm, and system length is then 40.43mm.As shown in figure 32, then it is this 8th embodiment
The third lens 5 image side surface 51 arrive every asphericity coefficient of the object side 52 in formula (1).
In addition, relationship such as Figure 33 and Figure 34 institutes in the optical eyepiece camera lens 10 of this 8th embodiment between each important parameter
Show.
Cooperation is refering to Figure 30, the longitudinal spherical aberration diagram by the distortion aberration of (a), the astigmatic image error of (b), (c), and (d)
It can be seen that this 8th embodiment can also maintain favorable optical performance.
Coordinate again refering to Figure 33 and Figure 34, is the tabular drawing of the above-mentioned eight every optical parameters preferably implemented, when this hair
When the relational expression between every optical parameter in bright optical eyepiece camera lens 10 meets following relationship, in the feelings that system length shortens
Under shape, still suffering from preferable optical property performance can make thinner when the present invention being made to wear display equipment applied to correlation
The product of type：
(1) T3/G23≤71, BFL/G23≤105, G23 are the second lens 4 and gap of the third lens 5 on optical axis I,
The diopter of cemented doublet and the diopter of the third lens composed due to the first lens and the second lens is just, to obtain
The magnifying power of bigger is obtained, i.e., smaller system focal length needs to reduce G23, but can not be unlimited with existing processing and assembly technology G23
The diminution of system, so the more difficult diminutions of G23, therefore preferably T3/G23, BFL/G23 will become small design.More preferably, 7.2≤T3/
G23≤71,7.5≤BFL/G23≤105.
(2) T1/T2≤3.50, T12/T3≤0.75, ALT/T12≤1.70, ALT/TTL≤0.70, BFL/T3≤1.00,
BFL/TTL≤0.30, since the requirement of image quality is higher and higher, the length of optical eyepiece camera lens 10 need to more do smaller, institute again
With each lens near optical axis I from the face type of circumference near zone often because it is contemplated that the path of light and have different changes
Change, thus the thickness size at 10 center of optical eyepiece camera lens and edge also can difference, it is contemplated that the characteristic of light,
The light at edge more need inside optical eyepiece camera lens 10 by larger angle refraction just can with it is incident near optical axis I
Light focuses on image source face 100, so the thickness of each lens and each the air gap need to be collocated with each other, can just make optical eyepiece
Camera lens 10 has good image quality, and focal length and 10 length of optical eyepiece camera lens and thickness, gap size are all related, therefore full
Each thickness, gap, the focal length of optical eyepiece camera lens 10 can be allowed to have good configuration when these relational expressions of foot.Preferably, 3.50
≤ T1/T2≤8.00,0.75≤T12/T3≤3.00,1.35≤ALT/T12≤2.30,0.55≤ALT/TTL≤0.70,1.00
≤ BFL/T3≤3.00,0.30≤BFL/TTL≤0.45.
Conclude above-mentioned, optical eyepiece camera lens 10 of the present invention can obtain following effect and advantage, therefore can reach the mesh of the present invention
's：
One, it is convex surface by the high refractive index and object side, image side surface of the first lens 3, can effectively transfer light angle,
It can help optical eyepiece camera lens optically focused；The further negative diopter of the second lens 4 of collocation, can effectively correct excessively convergent periphery
Field rays avoid peripheral vision from generating the larger curvature of field；And the material of the third lens 5 is plastics, is conducive to mitigate optical eyepiece
The weight and reduction cost of camera lens 10.
Two, by the image side surface 31 of the first lens 3 have convex surface, can it is larger ensure observation point away from lens on optical axis away from
From more than 20mm, to effectively promote experience sense.
Three, the aspherical table of the image side surface 51 of the first lens 3 and the second lens 4 compose balsaming lens, the third lens 5
Face, the third lens 5 object side 52 non-spherical surface, be collocated with each other and help amendment aberration, improving optical eyepiece camera lens 10
Image quality.
Four, the present invention makes whole system have and preferably eliminates aberration ability by the control of relevant design parameter, such as
Eliminate spherical aberration ability, then 3,4,5 image side surface 31,41,51 of fit lens or the concaveconvex shape of object side 32,42,52 design with
Arrangement, makes optical eyepiece camera lens 10 under conditions of shortening system length, the optical of chromatic aberation can effectively be overcome by still having
Can, and preferable image quality is provided.
Five, by the explanation of aforementioned eight embodiments, the design of optical eyepiece camera lens 10 of the present invention, aforementioned eight implementation are shown
The system length of example can all shorten to 45mm hereinafter, compared to existing optical eyepiece camera lens, using the camera lens energy of the present invention
The product being more thinned is produced, makes the present invention that there is the economic benefit to accord with the demands of the market.
A kind of optical eyepiece camera lens and wear display equipment that above-described embodiment only is used for further illustrating the present invention, but this
Invention is not limited to embodiment, it is every according to the technical essence of the invention to any simple modification made by above example,
Equivalent variations and modification, each fall in the protection domain of technical solution of the present invention.
Claims (1)
1. a kind of optical eyepiece camera lens, it is characterised in that：It is sequentially along optical axis from human eye observation side to image source：Diaphragm,
One lens, the second lens and the third lens；And first lens, the second lens and the third lens all have refractive index, and respectively
Including one towards observation side and the image side surface that makes imaging light pass through and one towards image source and the object that makes imaging light pass through
Side；
And first lens, the second lens, the third lens meet it is claimed below：
Nd1=1.88, Nd2=1.95, Nd3=1.49；
Vd1=40.8, Vd2=17.9, Vd3=57.3；
Wherein, Nd1, Nd2, Nd3 indicate respectively the first lens, the second lens, the third lens d lines refractive index；Vd1、Vd2、
Vd3 indicate respectively the first lens, the second lens, the third lens d lines abbe number；
First lens, the second lens, the third lens meet following relationship：
1)f1/f=0.94；
2)f2/f=-1.62；
3)f3/f=1.58；
Wherein, the focal length of first lens is f1, and the focal length of second lens is f2, and the focal length of the third lens is f3, system
Focal length is f；
First lens and the third lens are positive lens；Second lens are negative lens.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185440.7A CN108415152B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display equipment |
| CN201810185453.4A CN108398784B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens |
| CN201510783264.3A CN105388609B (en) | 2015-11-16 | 2015-11-16 | A kind of optical eyepiece camera lens and wear display equipment |
| CN201810187492.8A CN108398785B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens and image source display screen |
| CN201810187470.1A CN108303795B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510783264.3A CN105388609B (en) | 2015-11-16 | 2015-11-16 | A kind of optical eyepiece camera lens and wear display equipment |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810185440.7A Division CN108415152B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display equipment |
| CN201810187492.8A Division CN108398785B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens and image source display screen |
| CN201810185453.4A Division CN108398784B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens |
| CN201810187470.1A Division CN108303795B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105388609A CN105388609A (en) | 2016-03-09 |
| CN105388609B true CN105388609B (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510783264.3A Expired - Fee Related CN105388609B (en) | 2015-11-16 | 2015-11-16 | A kind of optical eyepiece camera lens and wear display equipment |
| CN201810185440.7A Active CN108415152B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display equipment |
| CN201810187492.8A Active CN108398785B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens and image source display screen |
| CN201810185453.4A Expired - Fee Related CN108398784B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens |
| CN201810187470.1A Active CN108303795B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810185440.7A Active CN108415152B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display equipment |
| CN201810187492.8A Active CN108398785B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens and image source display screen |
| CN201810185453.4A Expired - Fee Related CN108398784B (en) | 2015-11-16 | 2015-11-16 | Head-mounted display device adopting optical eyepiece lens |
| CN201810187470.1A Active CN108303795B (en) | 2015-11-16 | 2015-11-16 | Optical eyepiece lens for head-mounted display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105929537A (en) * | 2016-04-08 | 2016-09-07 | 北京骁龙科技有限公司 | Head-mounted display and eyepiece system thereof |
| CN106443967A (en) * | 2016-09-13 | 2017-02-22 | 湖南虚拟现实世界智能技术有限公司 | Battery of lenses, and virtual reality head mounted display visual system |
| CN106291940B (en) * | 2016-10-11 | 2018-08-31 | 天津大学 | A kind of design of virtual reality goggles and manufacturing method |
| CN106338835A (en) * | 2016-11-08 | 2017-01-18 | 重庆市人民医院 | Film reader for image diagnosis of radiology department |
| CN106338832A (en) * | 2016-11-09 | 2017-01-18 | 苏州苏大维格光电科技股份有限公司 | Single holographic diffraction optical waveguide lens and 3D display device |
| CN106773009A (en) * | 2016-11-18 | 2017-05-31 | 玉晶光电(厦门)有限公司 | Eyepiece optical system |
| CN106501938A (en) * | 2016-11-21 | 2017-03-15 | 苏州苏大维格光电科技股份有限公司 | A kind of wear-type augmented reality three-dimensional display apparatus |
| CN106597665A (en) * | 2016-11-28 | 2017-04-26 | 孙夏芬 | VR (Virtual Reality) helmet display device |
| CN106371222A (en) * | 2016-11-30 | 2017-02-01 | 苏州苏大维格光电科技股份有限公司 | Waveguide lens of nanometer optical lens and multi-field-depth 3D display device |
| CN106707509B (en) * | 2016-12-13 | 2019-06-28 | 南京华讯方舟通信设备有限公司 | The regulating device and main body frame of head-wearing device |
| TWI628464B (en) * | 2017-05-31 | 2018-07-01 | 聲遠精密光學股份有限公司 | Eye relief adjustable eyepiece system |
| WO2019006684A1 (en) * | 2017-07-04 | 2019-01-10 | 苏州耐德佳天成光电科技有限公司 | Projection objective applicable to image source of scanning galvanometer, and display device using same |
| CN110727101B (en) * | 2018-07-16 | 2022-08-02 | 玉晶光电股份有限公司 | Eyepiece optical system |
| CN109709676A (en) * | 2019-03-07 | 2019-05-03 | 浙江水晶光电科技股份有限公司 | A kind of augmented reality optics module and augmented reality device |
| JP7374688B2 (en) * | 2019-09-27 | 2023-11-07 | キヤノン株式会社 | image display device |
| CN111240030B (en) * | 2020-03-27 | 2022-06-21 | 歌尔光学科技有限公司 | Optical assembly and head-mounted display device |
| CN111863216A (en) * | 2020-07-02 | 2020-10-30 | 苏州众视医疗科技有限公司 | Vision screening and managing system and method |
| CN112857754B (en) * | 2021-02-24 | 2023-06-30 | Oppo广东移动通信有限公司 | Near-eye display detection lens and near-eye display device |
| CN117233972B (en) * | 2023-11-03 | 2024-05-31 | 广州纳立多科技有限公司 | Near-to-eye display optical module, head-mounted display device and virtual reality system |
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| JPH11174345A (en) * | 1997-12-08 | 1999-07-02 | Fuji Photo Optical Co Ltd | Wide visual field ocular |
| JP3495610B2 (en) * | 1998-09-30 | 2004-02-09 | ペンタックス株式会社 | Eyepiece optical system for single-lens reflex camera |
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| JP4199443B2 (en) * | 2001-08-22 | 2008-12-17 | Ｈｏｙａ株式会社 | Endoscope eyepiece |
| JP2006098504A (en) * | 2004-09-28 | 2006-04-13 | Matsushita Electric Ind Co Ltd | Photographing lens |
| CN101887166B (en) * | 2010-07-15 | 2012-07-11 | 深圳航天科技创新研究院 | Ocular |
| JP5136618B2 (en) * | 2010-09-21 | 2013-02-06 | 株式会社ニコン | Observation optical system, finder apparatus including the observation optical system, and method for manufacturing the observation optical system |
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2015
- 2015-11-16 CN CN201510783264.3A patent/CN105388609B/en not_active Expired - Fee Related
- 2015-11-16 CN CN201810185440.7A patent/CN108415152B/en active Active
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- 2015-11-16 CN CN201810185453.4A patent/CN108398784B/en not_active Expired - Fee Related
- 2015-11-16 CN CN201810187470.1A patent/CN108303795B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108415152B (en) | 2020-04-07 |
| CN108398784B (en) | 2019-12-20 |
| CN108398785B (en) | 2020-11-20 |
| CN108303795B (en) | 2020-10-30 |
| CN108303795A (en) | 2018-07-20 |
| CN108398785A (en) | 2018-08-14 |
| CN108415152A (en) | 2018-08-17 |
| CN105388609A (en) | 2016-03-09 |
| CN108398784A (en) | 2018-08-14 |
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