CN104279507A - Lens and illuminating device comprising same - Google Patents
Lens and illuminating device comprising same Download PDFInfo
- Publication number
- CN104279507A CN104279507A CN201310291659.2A CN201310291659A CN104279507A CN 104279507 A CN104279507 A CN 104279507A CN 201310291659 A CN201310291659 A CN 201310291659A CN 104279507 A CN104279507 A CN 104279507A
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- China
- Prior art keywords
- lens
- reflecting surface
- light
- refraction
- face
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a lens. The lens comprises a bottom surface and a surface sticking out from the bottom surface; a concave area is defined in the center of the bottom surface; the surface of the concave area forms an incident plane; the surface comprises a first refracting surface, a first reflecting surface, a second refracting surface and a second reflecting surface, wherein first light from a light source is emergent after being refracted by the first refracting surface; second light from the light source is emergent after being reflected by the first reflecting surface and refracted by the second refracting surface; third light from the light source is reflected by the first reflecting surface and the second reflecting surface, and then, is emergent after being refracted by the second refracting surface. Moreover, the invention also designs an illuminating device using the lens.
Description
Technical field
The present invention relates to a kind of lens and the lighting device comprising these lens.
Background technology
In existing lighting device, suitable part have employed the lighting engineering of LED, and this technology utilizes LED chip to be formed can with Halogen lamp LED or the similar illuminating effect of incandescent lamp.But the lighting device matched with LED technology is often higher relative to using the cost of Halogen lamp LED or incandescent lamp, so the use of the lighting device of LED can be subject to restriction to a certain extent.In order to realize reducing unnecessary expense, reducing to reach the advantage that cost brings economy, the old lighting device platform with economic advantages uses new LED technology to become a kind of development trend.
Summary of the invention
In order to solve the problems of the technologies described above, make new LED technology can be applied on the platform of old lighting device, and realize and the similar or identical lighting device of legacy lighting device moulding, the present invention proposes a kind of can be used for the lens on Halogen lamp LED lighting device platform and comprising the lighting device of these lens newly.By the lens that manufacture and use this novel and corresponding lighting device, can be implemented in and make use of on the basis of LED technology, with the compatibility of legacy lighting device platform, thus make use of the advantage of the low cost of legacy platform, but also according to the difference of design, the light angle similar or identical with Halogen lamp LED and illuminating effect can be produced.
First object of the present invention is realized by so a kind of lens, the surface that these lens comprise bottom surface and swell on bottom surface, the central authorities of bottom surface limit recessed region, the surface of recessed region forms the plane of incidence, wherein, surface comprises: first refractive face, from the first light outgoing after the refraction of first refractive face of light source; And first reflecting surface and the second plane of refraction, from the second light outgoing after the second plane of refraction refraction after the reflection of the first reflecting surface of light source; Second reflecting surface, from the 3rd light of light source after the reflection of the first reflecting surface and the second reflecting surface again by outgoing after the refraction of the second plane of refraction.According to such design, light from light source is only understood scioptics in the circumferential and is launched, the angular of the emergent light of expection can be formed after reaching refraction through repeatedly expecting or reflection, and, the possibility of light is provided from the reflector to lighting device circumference.
According to design of the present invention, surface design is make first, second, third light from light source form predetermined Light distribation in the circumferential behind surface.Such Light distribation has uniform illuminating effect, and is in the circumferential to the uniform light that the reflector of lighting device provides.Like this, can meet and provide light source to the reflector of lighting device in the circumferential, after reaching and coordinating with reflector, realize the possibility of the emergent light with the expection angle of emergence.
Preferably, and Light distribation is rotational symmetric Light distribation.Such Light distribation has uniform illuminating effect, and is in the circumferential to the uniform light that the reflector of lighting device provides.
According to the present invention, the first reflecting surface is arranged on central authorities and first refractive face, the second plane of refraction, the second reflecting surface are arranged on the periphery of the first reflecting surface.Like this, the optical axis direction that can be formed in lens can not produce emergent light, but the light of light source is guided to depart from the direction of optical axis.
Preferably, the first reflecting surface is formed in the end face be oppositely arranged with bottom surface.The light of light source passes through the reflection of the reflecting surface arranged on end face, can deflect towards the direction of the optical axis away from lens, to realize the possibility of outgoing in the circumferential again.
Preferably, first refractive face, the second reflecting surface and the second plane of refraction are disposed adjacent successively along the direction from bottom surface to end face between bottom surface and end face.According to such setting, a part of light is through the refraction outgoing of first refractive face, and other some light can through the refraction of the reflection of reflecting surface and the second plane of refraction, from the circumferential direction of lens, in the direction outgoing away from lens axis.
Preferably, in the cross section of the central axis process perpendicular to bottom surface and by lens, the first reflecting surface comprises the first and second bending away from bottom surface respectively curve part sections.Through the reflection of the reflecting surface of two portion's sections, from cross section, the light of light source only in side direction, towards the direction outgoing away from optical axis, and again through the reflection of the second reflecting surface, thus can form the effect of final emergent light.
Preferably, in the cross section of the central axis process perpendicular to bottom surface and by lens, the first and second curve part sections have the profile of SPL respectively.
According to the solution of the present invention, the first reflector design is the central axis Rotational Symmetry around lens.The light launched through the first reflecting surface like this can around the direction of lens centre axis to external reflectance.
According to the solution of the present invention, the second reflecting surface and the second plane of refraction are designed to smooth face respectively, and the second reflecting surface and the second plane of refraction are each other in predetermined angle.Two faces with this angle can make outgoing luminous energy be radiated on the reflector of lighting device according to the requirement of desired design, to form the emergent light of the expection of lighting device.The design of tabular surface is easily processed in the fabrication process, can have good economy.
Preferably, first refractive face from bottom surface towards the profile the direction of end face be gradually near the axis of symmetry of lens.Such plane of refraction can make the first light of light source shine directly on the reflector of lighting device after being refracted.
Preferably, in the cross section of the central axis process perpendicular to bottom surface and by lens, first refractive mask has the profile of SPL.
Preferably, the second reflecting surface from bottom surface towards the profile the direction of end face be gradually away from the axis of symmetry of lens.Such reflecting surface, when in conjunction with the first reflecting surface, can form the effect be such as totally reflected, by second of light source and the 3rd light guide to direction away from lens axis.
Preferably, the second plane of refraction from bottom surface towards the profile the direction of end face be gradually away from the axis of symmetry of lens.Through the light of reflective surface by this plane of refraction, can the place of reflector of lighting device of directive expection, thus realize the emergent light of the lighting device of expection.
Preferably, the first reflecting surface from bottom surface towards the profile the direction of end face be gradually away from the axis of symmetry of lens.The Lights section light can be guided to the second plane of refraction outgoing by such reflecting surface, or again through the second plane of refraction outgoing after the second reflective surface.
Another object of the present invention is realized by a kind of like this lighting device being similar to Halogen lamp LED, and namely lighting device comprises housing and is formed in the reflector on housing, and lighting device also comprises according to above-described lens.By the new type lens in conjunction with reflector and this design, the similar or identical illuminating effect with original Halogen lamp LED can be realized, and realize adjustable possibility of light angle.
Preferably, the Light distribation angle of emergent light is selected from the group comprising 12 degree, 24 degree, 36 degree and 60 degree.The application requirement in different occasion illumination apparatus can be met like this.
Accompanying drawing explanation
Accompanying drawing forms the part of this description, understands the present invention further for helping.These accompanying drawings illustrate embodiments of the invention, and are used for principle of the present invention is described together with description.The identical label of parts identical in the accompanying drawings represents.Shown in figure:
Fig. 1 is the sectional view of lens according to an embodiment of the present;
Fig. 2 is the index path of lens according to an embodiment of the present;
Fig. 3 is the sectional view of lighting device according to an embodiment of the present.
Detailed description of the invention
As depicted in figs. 1 and 2, Fig. 1 is the sectional view of lens 100 according to an embodiment of the present, and Fig. 2 is the index path of lens according to an embodiment of the present according to Fig. 2.These lens 100 have bottom surface 1, surface 2, and perpendicular to the central axis X of bottom surface 1, and there is the cross section vertical with described central axis X.On the bottom surface 1 of these lens 100 protuberance have a recessed region 3, such region can be embodied as the light source of such as LED chip for holding, like this, by the surface of recessed region 3 as the plane of incidence 4, the light from light source can be injected in lens.Wherein, recessed region 3 can be designed to have hemispherical, half elliptic or conical profile, but is not restricted to the profile of these forms, and other profiles that can realize similar effects all can be designed to the profile of this recessed region 3.The design of these lens 100 has the first and second reflecting surface 221,222 and first and second planes of refraction 211,212, first reflecting surface 221 is designed in the central authorities of the end face of lens, and first refractive face 211, second reflecting surface 222 and described second plane of refraction 212 are disposed adjacent successively along from bottom surface to the direction of described end face between bottom surface and end face.
Concrete, the end face of these lens 100 is designed with the first reflecting surface 221 being seen as profile that is symmetrical, that have SPL from Fig. 1, as can be seen from Figure 1, this first reflecting surface 221 from bottom surface 1 to the profile the direction of end face be gradually away from the central axis X of lens, and because lens 100 are designed to rotational symmetric, so this reflecting surface 221 can be formed as having conical profile, and the outer surface of this cone shape profile, the surface design namely towards the bottom surface 1 of lens 100 is the first reflecting surface 221.Like this, this first reflecting surface 221 can be considered in the sunk area being formed at and caving in towards bottom surface 1, makes the light of light source 5 cannot penetrate lens 100 along the direction of optical axis X.Based on the first reflecting surface 221 of so conical profile design, described first refractive face 211, second plane of refraction 212, second reflecting surface 222 is arranged on the periphery of described first reflecting surface 221.From the some light of light source 5, particularly along the light in the direction of lens axis, when running into the first reflecting surface 221, be reflected as towards the light of the central axis X away from described lens, namely change radiation direction originally, guide light all towards side.
In addition, as shown in Figure 1 and composition graphs 2, can find out, first light L1 forms the first emergent light L1 ' after first refractive face 211 reflects, second light L2 after the reflection of the first reflecting surface 221 directly after the second plane of refraction 212 reflects outgoing form the second emergent light L2 ', 3rd light L3 is after the multiple reflections through the first reflecting surface 221 and the second reflecting surface 222, then outgoing forms the 3rd emergent light L3 ' after the second plane of refraction 212 reflects.And, concrete, second plane of refraction 212 profile that can be designed to the direction from bottom surface towards end face is gradually away from the axis of symmetry of described lens, second reflecting surface 222 from bottom surface towards the profile the direction of end face be gradually away from the axis of symmetry of described lens, the effect of the guiding of the above-described light to light source can be met like this, the light finally by described two plane of refraction outgoing is made to be all in side direction, namely be round in the circumferential direction of the central hub X of lens 100, with the angle outgoing expected.
It should be noted that, second plane of refraction 212 and the second reflecting surface 222 are each other in predetermined angle, this angle can according to using the degree of depth of reflector 7 of the lighting device 200 of these lens 100, the angular of emergent light of lighting device 200 of caliber size and required formation decides, and the angular of the emergent light of this lighting device 200 can be selected from wherein any one angle (hereafter by this lighting device 200 of detailed description) of such as 12 degree, 24 degree, 36 degree and 60 degree by applied environment.
Fig. 3 is the sectional view of lighting device 200 according to an embodiment of the present.Utilizing LED technology to reach the illuminating effect of original Halogen lamp LED to realize on the platform of the lighting device of original such as Halogen lamp LED, novel lens 100 can be utilized, and in conjunction with the reflector 7 of lighting device 200 to realize this object.Concrete, as shown in Figure 3, this lighting device 200 has the reflector 7 and housing 6 that set gradually in the axial direction, and reflector 7 is arranged on housing 6, and can realize such as using the mode be made into integration these two parts to be coupled together.
In addition, the material that this housing 6 can use such as metal or have a high thermal conductivity is made, to form the effect of the heat radiation of good lighting device 200.Lens 100 are provided with in this lighting device 200, these lens 100 are arranged on the center of this lighting device 200, and the bearing structure 8 set by utilizing, lens 100 are realized to be fixedly mounted in described center, can realize like this, from the light of light source 5 after lens 100, from using lens 100 as the place at center in circumference to surrounding emission of light.The inner surface of reflector 7 is provided with the 3rd reflecting surface 223, after caning be passed through the reflection of the 3rd reflecting surface 223 from the light of lens 100, towards the outside outgoing of lighting device 200, the final emergent ray of lighting device 100 can be formed like this.Further, concrete, the 3rd reflecting surface 223 can be designed to have at least one sub-reflecting surface, preferably also can be designed to the form of microlens array, to realize making being reflected and mix outgoing afterwards of uniform light from lens 100.
It should be noted that, by in conjunction with lens 100, lighting device 200 not only can have the advantages such as the efficient energy-saving of LED technology, can realize can after the reflector 7 of lighting device 200 reflects using being treated to as the light of light source from LED, obtain the similar or identical illuminating effect with Halogen lamp LED, also can because of the platform of lighting device adopting similar Halogen lamp LED, to reach the object of saving the cost manufacturing whole lighting device 200.The double action of the reflector 7 of scioptics 100 and this lighting device 200, control light energy to distribute, just can realize by from light source 5 light regulate after, make can be similar or identical with the illuminating effect of such as Halogen lamp LED from the light of lighting device 200 outgoing result.In addition, according to the demand of illumination apparatus 200, LED is mounted on bearing structure 8, and above-mentioned bearing structure 8 is designed to rotational symmetric, to reach the object with the form fit of the housing 6 of such as lighting device 200, thus realize succinctly and easily connection being installed, and this bearing structure 8 can be designed to the device of such as radiator, inside bottom reflector 7 is coated with thermal grease, when bearing structure 8 inserts bottom reflector 7, make this bearing structure 8 and reflector 7 close contact, and use the material with high thermal conductivity to manufacture this bearing structure 8, to realize the effect to the good heat radiation of light source 5, reach the heat radiation keeping being contained in the drive unit of housing 6 inside, thus realize the stable working environment of lighting device 200.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Reference number
1 bottom surface
2 surfaces
3 recessed regions
4 planes of incidence
5 light sources
6 housings
7 reflectors
8 bearing structures
100 lens
200 lighting devices
211 first refractive faces
212 second planes of refraction
221 first reflectings surface
222 second reflectings surface
223 the 3rd reflectings surface
L1 first light
L2 second light
L3 the 3rd light
L1 ' first emergent light
L2 ' second emergent light
L3 ' the 3rd emergent light
Claims (17)
1. lens (100), described lens comprise bottom surface (1) and the surface (2) at described bottom surface (1) upper protuberance, the central authorities of described bottom surface (1) limit the recessed region (3) for holding light source (5), the surface of described recessed region (3) forms the plane of incidence (4), it is characterized in that, described surface (2) comprising: first refractive face (211), from the first light (L1) outgoing after described first refractive face (211) refraction of described light source (5); And first reflecting surface (221) and the second plane of refraction (212), from the second light (L2) outgoing after described second plane of refraction (212) refraction after the reflection of described first reflecting surface (221) of described light source (5); Second reflecting surface (222), from the 3rd light (L3) of described light source (5) after the reflection of described first reflecting surface (221) and described second reflecting surface (222) again by the refraction of described second plane of refraction (212) after outgoing.
2. lens according to claim 1 (100), is characterized in that, described surface (2) are designed to make described first, second, third light from described light source (5) form predetermined Light distribation in the circumferential after described surface (2).
3. lens according to claim 2 (100), is characterized in that, and described Light distribation is rotational symmetric Light distribation.
4. according to claim 1 ?lens (100) according to any one of 3, it is characterized in that, described first reflecting surface (221) is arranged on central authorities and described first refractive face (211), described second plane of refraction (212), the second reflecting surface (222) are arranged on the periphery of described first reflecting surface (221).
5. lens according to claim 4 (100), is characterized in that, described first reflecting surface (221) is formed in the end face be oppositely arranged with described bottom surface.
6. lens according to claim 5 (100), it is characterized in that, described first refractive face (211), the second reflecting surface (222) and described second plane of refraction (212) are between bottom surface and end face and be disposed adjacent successively along from bottom surface to the direction of described end face.
7. lens according to claim 4 (100), it is characterized in that, in the cross section of central axis (X) process perpendicular to described bottom surface (1) and by described lens (100), described first reflecting surface (221) comprises the first and second curve part sections (2211,2212) bending away from described bottom surface respectively.
8. according to claim 7 described lens (100), it is characterized in that, in the first cross section of central axis (X) process perpendicular to described bottom surface (1) and by described lens (100), described first and second curve part sections have the profile of SPL respectively.
9. lens according to claim 4 (100), is characterized in that, described first reflecting surface (221) is designed to central axis (X) Rotational Symmetry around described lens (100).
10. lens according to claim 4 (100), it is characterized in that, described second reflecting surface (222) and described second plane of refraction (212) are designed to smooth face respectively, and described second reflecting surface (222) and described second plane of refraction (212) are each other in predetermined angle.
11. according to claim 1 ?lens (100) according to any one of 3, it is characterized in that, described first refractive face (211) from bottom surface towards the profile the direction of end face be gradually near the central axis (X) of described lens.
12. lens according to claim 11 (100), is characterized in that, on the first cross section perpendicular to described bottom surface (1) and by central axis (X) process of described lens (100), described first refractive face (211) has the profile of SPL.
13. according to claim 1 ?lens (100) according to any one of 3, it is characterized in that, described second reflecting surface (222) from bottom surface towards the profile the direction of end face be gradually away from the central axis (X) of described lens.
14. according to claim 1 ?lens (100) according to any one of 3, it is characterized in that, described second plane of refraction (212) from bottom surface towards the profile the direction of end face be gradually away from the central axis (X) of described lens.
15. according to claim 1 ?lens (100) according to any one of 3, it is characterized in that, described first reflecting surface (221) from bottom surface towards the profile the direction of end face be gradually away from the central axis (X) of described lens.
16. 1 kinds of lighting devices (200), described lighting device comprises housing (6) and is formed in the reflector (7) on described housing (6), it is characterized in that, described lighting device (200) also comprises the lens (100) according to any one of claim 1 to 15.
17. lighting devices according to claim 16 (200), is characterized in that, the angular of described emergent light is selected from the group comprising 12 degree, 24 degree, 36 degree and 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291659.2A CN104279507A (en) | 2013-07-11 | 2013-07-11 | Lens and illuminating device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291659.2A CN104279507A (en) | 2013-07-11 | 2013-07-11 | Lens and illuminating device comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104279507A true CN104279507A (en) | 2015-01-14 |
Family
ID=52254666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310291659.2A Pending CN104279507A (en) | 2013-07-11 | 2013-07-11 | Lens and illuminating device comprising same |
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| Country | Link |
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| CN (1) | CN104279507A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782814A (en) * | 2016-04-22 | 2016-07-20 | 深圳磊明科技有限公司 | Lamp |
| CN112005540A (en) * | 2019-03-26 | 2020-11-27 | Nec平台株式会社 | LED light source mechanism, telephone and method for forming LED light source |
| CN112303593A (en) * | 2019-07-31 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical lens, light-emitting device and display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070041098A1 (en) * | 2005-08-18 | 2007-02-22 | Samsung Electro-Mechanics Co., Ltd. | LED light source lens having upper, central and lower parts |
| TWM429802U (en) * | 2011-09-30 | 2012-05-21 | Chicony Power Tech Co Ltd | Light source module and light-emitting device thereof |
| CN102705776A (en) * | 2012-05-16 | 2012-10-03 | 广州市鸿利光电股份有限公司 | Lens realizing even and rectangular facula |
-
2013
- 2013-07-11 CN CN201310291659.2A patent/CN104279507A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070041098A1 (en) * | 2005-08-18 | 2007-02-22 | Samsung Electro-Mechanics Co., Ltd. | LED light source lens having upper, central and lower parts |
| TWM429802U (en) * | 2011-09-30 | 2012-05-21 | Chicony Power Tech Co Ltd | Light source module and light-emitting device thereof |
| CN102705776A (en) * | 2012-05-16 | 2012-10-03 | 广州市鸿利光电股份有限公司 | Lens realizing even and rectangular facula |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782814A (en) * | 2016-04-22 | 2016-07-20 | 深圳磊明科技有限公司 | Lamp |
| CN112005540A (en) * | 2019-03-26 | 2020-11-27 | Nec平台株式会社 | LED light source mechanism, telephone and method for forming LED light source |
| US11293604B2 (en) | 2019-03-26 | 2022-04-05 | Nec Platforms, Ltd. | LED light source mechanism, telephone set, and method for forming LED light source |
| CN112303593A (en) * | 2019-07-31 | 2021-02-02 | 安徽芯瑞达科技股份有限公司 | Optical lens, light-emitting device and display |
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Effective date of registration: 20181218 Address after: Munich, Germany Applicant after: Landes Vance Address before: Munich, Germany Applicant before: Osram GMBH |
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