CN108253381B - Lens and light-emitting device comprising same - Google Patents
Lens and light-emitting device comprising same Download PDFInfo
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- CN108253381B CN108253381B CN201810206164.8A CN201810206164A CN108253381B CN 108253381 B CN108253381 B CN 108253381B CN 201810206164 A CN201810206164 A CN 201810206164A CN 108253381 B CN108253381 B CN 108253381B
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- 241001270131 Agaricus moelleri Species 0.000 claims description 10
- 230000000694 effects Effects 0.000 description 14
- 238000009826 distribution Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lenses (AREA)
Abstract
The invention is applicable to the technical field of optics, and provides a lens which comprises a flaky lens body, a light-emitting surface arranged on a first surface of the lens body, a light-entering surface arranged on a second surface of the lens body and a reflecting surface for carrying out secondary reflection, wherein the reflecting surface is arranged around the light-entering surface; the second surface is provided with a multi-step groove, and the light incident surface is formed on the inner surface of the multi-step groove; the light incident surface comprises a first light incident surface, a second light incident surface and a third light incident surface which are sequentially connected in a ring manner from inside to outside and are concentric with the central axis, the second light incident surface extends obliquely from the outer side edge of the first light incident surface back to the light emergent surface, the third light incident surface extends obliquely from the outer side edge of the second light incident surface back to the light emergent surface, the included angle of the third light incident surface relative to the central axis is larger than the included angle of the second light incident surface relative to the central axis, and the outer side edge of the third light incident surface is connected with the reflecting surface. Through the design of the first, second and third light incident surfaces, the thickness of the lens can be reduced under the condition that the output intensity is uniform and the angle is controllable.
Description
Technical Field
The present invention relates to a lens, and more particularly to a lens and a light emitting device including the lens.
Background
Lenses, which are important devices for various lamps, are generally used for adjusting the light beam emitted by a light source to output a light beam meeting the requirements, such as a light emitting angle, a light spot shape, light spot uniformity, and the like. The conventional light distribution lens is required to adjust light to a preset angle, the shape of an incident surface and an emergent surface of the lens is required to be designed, the light distribution effect can be achieved only by requiring a certain stroke of the light in the lens, and in order to ensure that an ideal light distribution effect is achieved, the thickness of the lens is usually large, so that some devices requiring miniaturization are difficult to further compress the volume, and the application of the lens is limited.
Disclosure of Invention
The invention aims to provide a lens, and aims to solve the technical problems that the traditional lens is difficult to meet the light distribution requirement and reduce the thickness.
The invention is realized in such a way that the lens comprises a flaky lens body, a light-emitting surface arranged on a first surface of the lens body, a light-entering surface arranged on a second surface of the lens body and a reflecting surface arranged on the second surface of the lens body and used for secondarily reflecting light reflected by the light-emitting surface, wherein the reflecting surface is arranged around the light-entering surface; the second surface of the lens body is provided with a multi-step groove, and the light incident surface is formed on the inner surface of the multi-step groove; the light incident surface comprises a first light incident surface, a second light incident surface and a third light incident surface which are sequentially connected in a ring manner from inside to outside and are coaxial with the central axis, the second light incident surface extends from the outer side edge of the first light incident surface back to the light emergent surface in an inclined manner, the third light incident surface extends from the outer side edge of the second light incident surface back to the light emergent surface in an inclined manner, the included angle of the third light incident surface relative to the central axis is larger than the included angle of the second light incident surface relative to the central axis, and the outer side edge of the third light incident surface is connected with the reflecting surface.
Further, the projection of the first light incident surface on the light emergent surface is circular, and the projections of the second light incident surface, the third light incident surface and the reflecting surface on the light emergent surface are circular.
Further, a V-shaped groove pointing to the light emitting surface is formed at the joint of the first light emitting surface and the second light emitting surface, and the included angle of the V-shaped groove is 30-90 degrees.
Further, the longitudinal section of the reflecting surface is arc-shaped protruding away from the light emitting surface.
Further, the longitudinal section of the first light incident surface is an arc shape protruding away from the light emergent surface.
Further, the first light incident surface comprises a smooth surface arranged in the center and a first tooth surface arranged around the smooth surface, and the smooth surface and the first tooth surface are concentric with the central axis; the first tooth surface comprises at least two first tooth points which extend away from the light emergent surface and are used for carrying out refraction and reflection on light rays.
Further, the third light incident surface comprises a third tooth surface, and the third tooth surface comprises at least two third tooth tips which extend away from the light emergent surface and are used for carrying out refraction and reflection on light rays.
Further, a flat top ring belt is arranged between the third light incident surface and the reflecting surface, the flat top ring belt is parallel to the light emergent surface, the light source is arranged at the center of the notch of the multi-stage groove, and the light emitting point of the light source and the flat top ring belt are positioned on the same plane.
Further, the light-emitting surface is a plane.
Another object of the present invention is to provide a light emitting device, including the lens as set forth in any one of the above and a light source disposed at a notch center of the multi-step groove.
The lens provided by the invention has the following beneficial effects:
A light source is arranged at the notch part of the multi-stage groove, light rays emitted by the light source are emitted into the lens body through the first light incident surface, the second light incident surface and the third light incident surface, wherein the light rays emitted through the first light incident surface are refracted through the first light incident surface and the light emergent surface, and the intensity and uniformity of central light intensity are ensured; most of the light rays entering the lens body through the second light inlet surface are reflected to the reflecting surface for the first time through the light outlet surface, reflected for the second time through the reflecting surface and then emitted through the light outlet surface; most of the light rays entering through the third light-in surface are refracted through the third light-in surface and the light-out surface, and the intensity and uniformity of surrounding light rays and the light beam emission angle are controlled. The secondary reflection is combined with the refraction and reflection of the first light incident surface, the second light incident surface and the third light incident surface, so that the lens can realize thickness reduction under the condition that the output intensity is uniform and the angle is controllable.
Drawings
Fig. 1 is a schematic perspective view of a lens according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a lens according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a lens provided by an embodiment of the invention;
FIG. 4 is an optical path diagram of a lens provided by an embodiment of the invention;
FIG. 5 is a schematic perspective view of a lens according to another embodiment of the present invention;
FIG. 6 is a top view of a lens provided by another embodiment of the invention;
FIG. 7 is a cross-sectional view of a lens provided by another embodiment of the invention;
FIG. 8 is an optical path diagram of a lens provided by another embodiment of the invention;
FIG. 9 is a graph of the effect of a light spot 1 meter away from a light source according to an embodiment of the present invention;
FIG. 10 is a graph showing the illuminance distribution of a light spot 1m away from a light source according to an embodiment of the present invention;
FIG. 11 is a graph showing the effect of a light spot at a distance of 0.5m from a light source according to an embodiment of the present invention;
FIG. 12 is a graph showing the distribution of spot illumination at 0.5 meters from a light source according to an embodiment of the present invention;
FIG. 13 is a graph of the luminous effect of a lens as seen at a distance of 0.25 meters from a light source for a person provided by an embodiment of the present invention;
fig. 14 is a light spot effect diagram when the condensing angle of the lens provided by the embodiment of the invention is 14.1 degrees and the floodlight angle is 30 degrees.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are directions or positions based on the drawings, and are merely for convenience of description and are not to be construed as limiting the present technical solution. The terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
In order to explain the technical scheme of the invention, the following is a detailed description with reference to the specific drawings and embodiments.
Referring to fig. 1 to 4, an embodiment of the present invention provides a lens for adjusting light emitted from a light source, so that the intensity of the emitted light is uniform and meets the corresponding angle requirement, and the thickness of the lens is smaller than that of a conventional lens. The lens comprises a sheet-shaped lens body 10, a light-emitting surface 20 arranged on a first surface of the lens body 10, a light-entering surface 30 arranged on a second surface of the lens body 10, and a reflecting surface 40 arranged on the second surface of the lens body 10 and used for secondarily reflecting light reflected by the light-emitting surface 20, wherein the reflecting surface 40 is arranged around the light-entering surface 30. The lens body 10 is a solid structure made of a light-transmitting material, and the first surface and the second surface are opposite surfaces, and it is understood that a side 50 may be disposed between the outer edges of the first surface and the second surface, and in another embodiment, the outer edges of the first surface and the second surface may be directly connected. The second surface of the lens body 10 is provided with a multi-step groove, and the multi-step groove refers to an inner wall of the groove, which is an inner wall with a folded longitudinal section formed by sequentially connecting a plurality of annular inclined planes with different angles along the direction of the central axis of the lens body 10, instead of a linear inner wall or an arc inner wall. The light incident surface 30 is formed on the inner surface of the multi-step groove, i.e. the light incident surface 30 is the multi-step light incident surface 30. Specifically, the light incident surface 30 includes a first light incident surface 31, a second light incident surface 32 and a third light incident surface 33 which are sequentially connected from inside to outside and are concentric with the central axis L, wherein the second light incident surface 32 extends obliquely from the outer side edge of the first light incident surface 31 to the light emergent surface 20, the third light incident surface 33 extends obliquely from the outer side edge of the second light incident surface 32 to the light emergent surface 20, the included angle between the third light incident surface 33 and the central axis L is larger than the included angle between the second light incident surface 32 and the central axis L, the outer side edge of the third light incident surface 33 is connected with the reflecting surface 40, and the outer edge of the reflecting surface 40 can be connected with the side surface 50 or the light emergent surface 20. In one embodiment, the first light incident surface 31, the second light incident surface 32, the third light incident surface 33, and the light emergent surface 20 may be directly formed based on the surface of the lens body 10, that is, the surface of the lens body 10 is directly processed into a predetermined structure, that is, the first light incident surface 31, the second light incident surface 32, the third light incident surface 33, and the light emergent surface 20 are obtained, and in another embodiment, after the surface of the lens body 10 is processed into a predetermined shape, a corresponding antireflection film or an antireflection film may be disposed to form the first light incident surface 31, the second light incident surface 32, the third light incident surface 33, and the light emergent surface 20. The reflection surface 40 is formed by providing a reflection film around the multi-step groove on the second surface of the lens body 10.
In the lens, a light source 60 is disposed at a notch portion of the multi-stage groove, and light emitted from the light source 60 is incident into the lens body 10 through the light incident surface 30, that is, light emitted from the light source 60 can be incident into the lens body 10 through the first light incident surface 31, the second light incident surface 32 and the third light incident surface 33. Among the light rays entering the lens body 10 through the second light incident surface 32, a part of the light rays are reflected once to the reflecting surface 40 through the light emitting surface 20, and are reflected twice through the reflecting surface 40 and then are emitted out through the light emitting surface 20, and the secondary reflection combined with the refraction and reflection of the first light incident surface 31, the second light incident surface 32 and the third light incident surface 33 can enable the lens to output uniform light rays and enable the thickness of the lens to be reduced.
The working principle of the lens is as follows: referring to fig. 3 and 4, the light source 60 is disposed at the center of the notch of the multi-stage groove, and among the light rays emitted by the light source 60, the first light beam L1 near the central axis L of the light incident surface 30 is incident into the lens body 10 through the first light incident surface 31, and most of the light beam L1 is refracted out through the light emergent surface 20 directly due to the smaller incident angle; the second light beam L2 with a slightly larger incident angle than the first light beam L1 is incident into the lens body 10 through the second light incident surface 32, wherein a part of the light beam L21 is incident into the light emitting surface 20 with a smaller incident angle, and is refracted out by the light emitting surface 20, and another part of the light beam L22 is incident into the light emitting surface 20 with a larger incident angle, is totally reflected at the light emitting surface 20 and is reflected to the reflecting surface 40, and is refracted out through the light emitting surface 20 after being reflected by the reflecting surface 40. The third light beam L3 with the largest angle is incident into the lens body 10 through the third light incident surface 33, and most of the third light beam L is refracted through the third light incident surface 33 and then is emitted from the light emitting surface 20, however, some light beams may be reflected by the reflecting surface 40 and then be emitted from the light emitting surface 20. The refraction of the first light incident surface 31, the second light incident surface 32 and the third light incident surface 33 and the secondary reflection of the reflecting surface 40 effectively control the condensing angle and the floodlight angle of the light beam and make the light spot more uniform.
Importantly, the lens can realize sufficient secondary reflection, the secondary reflection enables the light angle and uniformity to be sufficiently adjusted, the intensity of outgoing light in a certain beam angle is uniform, under the condition of the same thickness, compared with the condition that the light incoming surface 30 is formed by adopting a multi-step groove and the light incoming surface 30 is formed by adopting a traditional common groove, the multi-step groove type lens has better light distribution effect, and furthermore, under the condition of realizing the same light distribution effect, the thickness of the lens can be thinner.
According to the detection, a lens with the diameter of 20mm and the emergent light angle of 10 degrees is manufactured, the height (thickness) of the lens can be controlled to be 3-4 mm, and the thickness of a common lens is required to be 7-9 mm.
Referring to the light distribution effect diagrams shown in fig. 9 to 14, wherein fig. 9 and 10 illustrate the spot effect diagram and the illuminance distribution diagram at a distance of 1m from the light source; FIGS. 11 and 12 illustrate spot effect plots and illuminance profiles at 0.5m from the light source; the visible light spots are regular in shape and uniform in illumination. Fig. 13 illustrates the luminous effect of a lens seen by a person 250mm from a light source, and the visual effect of the lens is better, and the human eyes perceive uniform brightness and no glare. Fig. 14 illustrates an effect diagram of a lens with a maximum light transmittance of 81%, a lens condensing angle (half-intensity full angle) of 14.1 degrees, a floodlight angle (1/10 intensity full angle) of 30 degrees, and a center light intensity value of 3762cd/600lm, so that the lens has good spot brightness uniformity, good spot peripheral intensity interception, and high light energy utilization rate.
In this embodiment, the first light incident surface 31, the second light incident surface 32, the third light incident surface 33 and the reflecting surface 40 are sequentially connected from inside to outside, preferably, the projection of the first light incident surface 31 on the light emergent surface 20 is circular, and the projections of the second light incident surface 32, the third light incident surface 33 and the reflecting surface 40 on the light emergent surface 20 are circular. The central axis L of the light incident surface 30 is perpendicular to the center of the first light incident surface 31.
Further referring to fig. 3, the inclination angles of the first light incident surface 31, the second light incident surface 32 and the third light incident surface 33 are different from each other, so as to form a polygonal connection structure, wherein a V-shaped groove structure is formed at the intersection of the first light incident surface 31 and the second light incident surface 32, and the included angle of the V-shaped groove structure is 30-90 degrees. The light incident surface 30 structure homogenizes the central light intensity and enhances the intensity of the peripheral dark area through the processes of refraction, reflection, secondary reflection and the like, so that the light spots are uniform, and the beam angle is restricted in a certain range.
Further referring to fig. 3, a flat top ring belt 70 is disposed between the third light incident surface 33 and the reflecting surface 40, the flat top ring belt 70 is parallel to the light emergent surface 20, the light source 60 is disposed at the center of the notch of the multi-step groove, and the light emitting point and the flat top ring belt 70 are on the same plane. The flat-top ring 70 is provided to facilitate positioning of the light source 60 on the one hand and assembly of the lens in the luminaire on the other hand.
Further preferably, the longitudinal section of the reflecting surface 40 is an arc protruding away from the light emitting surface 20, the longitudinal section of the first light incident surface 31 is an arc protruding away from the light emitting surface 20, and the light emitting surface 20 is a plane, so as to expand light and limit the light within a predetermined angle, so that the brightness of the light spot is uniform and reaches the requirement, and the manufacturing is convenient.
As a modification of the present embodiment, the first light incident surface 31 is formed of a two-part structure, referring to fig. 5 to 8, that is, the first light incident surface 31 includes a smooth surface 311 located in a central area and a first tooth surface 312 located around the smooth surface 311, the smooth surface 311 and the first tooth surface 312 have a common central axis L, the smooth surface 311 is preferably an arc surface protruding away from the light emitting surface 20, and the first tooth surface 312 includes at least two first tooth points 3121 extending away from the light emitting surface 20 for refracting light, that is, the first tooth surface 312 is formed of two or more annular ridge structures that are looped inside and outside. By providing the first tooth point 3121, as in fig. 7 and 8, light can be projected more uniformly and at a more controlled angle, increasing the uniformity of the central light intensity.
Preferably, the first tooth point 3121 is directed toward a direction that is offset from the central axis L, facilitating adjustment of the central light intensity.
As a further development of the present embodiment, the third light incident surface 33 comprises a third tooth surface 331, which third tooth surface 331 comprises at least two third tooth tips 3311 extending away from the light exit surface 20 for refracting or refracting light. Similarly, the third tooth surface 331 is formed of two or more annular ridge structures circumscribing the inner and outer surfaces. As shown in fig. 7 and 8, the light beam incident into the lens body 10 from the third incident surface 33 enters the lens body 10 through refraction of the third tooth point 3311, wherein a part of the light beam exits the lens through the light exit surface 20, and a part of the light beam exits the lens through the light exit surface 20 after being reflected by the other third tooth point 3311, and the refraction and reflection enable the light beam with a large angle to be gathered, so as to control the beam angle and uniformity of the emergent light. Of course, the light entering the lens body 10 through the third tooth point 3311 does not exclude that a part of the light can be projected to the reflecting surface 40, and then reflected by the reflecting surface 40 to the light emergent surface 20, and the angle of the emergent light can be controlled by the reflection of the reflecting surface 40, so that the light is concentrated in a predetermined angle.
Preferably, the third tooth point 3311 is directed in a direction biased toward the central axis L, which is advantageous for achieving adjustment of the peripheral light intensity and control of the beam angle.
Further preferably, the number of the first tooth points 3121 is two to four, and the number of the third tooth points 3311 is three to five, which can satisfy the requirement of light ray preparation and is convenient for manufacturing.
The lens can be used in various light-emitting devices such as LED lamps which need lens light distribution, and the light-emitting devices are also in the protection scope of the invention. The light emitting device comprises a light source 60 arranged at the center of a notch of the multi-stage groove. Further, the light emitting center of the light source 60 is located at the center of the plane where the notch is located, so as to be matched with the light incident surface 30 to ensure a better light distribution effect.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The lens is characterized by comprising a flaky lens body, a light-emitting surface arranged on a first surface of the lens body, a light-entering surface arranged on a second surface of the lens body and a reflecting surface arranged on the second surface of the lens body and used for secondarily reflecting light reflected by the light-emitting surface, wherein the reflecting surface is arranged around the light-entering surface; the second surface of the lens body is provided with a multi-step groove, the multi-step groove is an inner wall with a plurality of annular inclined planes with different angles, the longitudinal sections of the inner wall are formed by sequentially and angularly connecting the annular inclined planes along the direction of the central axis of the lens body, and the light incident surface is formed on the inner surface of the multi-step groove; the light incident surface comprises a first light incident surface, a second light incident surface and a third light incident surface which are sequentially connected in a ring manner from inside to outside and are coaxial with the central axis, the second light incident surface extends from the outer side edge of the first light incident surface back to the light emergent surface in an inclined manner, the third light incident surface extends from the outer side edge of the second light incident surface back to the light emergent surface in an inclined manner, the included angle of the third light incident surface relative to the central axis is larger than the included angle of the second light incident surface relative to the central axis, and the outer side edge of the third light incident surface is connected with the reflecting surface.
2. The lens of claim 1, wherein the projection of the first light incident surface on the light emergent surface is circular, and the projections of the second light incident surface, the third light incident surface and the reflecting surface on the light emergent surface are circular.
3. The lens of claim 1 or claim 2, wherein a junction of the first light incident surface and the second light incident surface forms a "V" shaped groove directed toward the light emergent surface, and an included angle of the "V" shaped groove is 30-90 °.
4. The lens of claim 1 or 2, wherein the longitudinal section of the reflecting surface is an arc protruding away from the light-emitting surface.
5. The lens of claim 1 or 2, wherein a longitudinal section of the first light incident surface is an arc shape protruding away from the light emergent surface.
6. The lens according to claim 1 or 2, wherein the first light incident surface includes a smooth surface provided in a center and a first tooth surface provided around the smooth surface, the smooth surface and the first tooth surface being concentric with the center axis; the first tooth surface comprises at least two first tooth points which extend away from the light emergent surface and are used for carrying out refraction and reflection on light rays.
7. The lens of claim 6 wherein the third light entrance surface includes a third tooth surface including at least two third tooth tips extending away from the light exit surface for catadioptric light.
8. The lens according to claim 1 or 2, wherein a flat-top annular band is arranged between the third light incident surface and the reflecting surface, the flat-top annular band is parallel to the light emergent surface, a light source is arranged at the notch center of the multi-step groove, and the light emitting point of the light source and the flat-top annular band are in the same plane.
9. The lens of claim 1 or 2, wherein the light exit surface is planar.
10. A light-emitting device comprising the lens according to any one of claims 1 to 9 and a light source provided at a notch center of the multi-step groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206164.8A CN108253381B (en) | 2018-03-13 | 2018-03-13 | Lens and light-emitting device comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206164.8A CN108253381B (en) | 2018-03-13 | 2018-03-13 | Lens and light-emitting device comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN108253381A CN108253381A (en) | 2018-07-06 |
| CN108253381B true CN108253381B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810206164.8A Active CN108253381B (en) | 2018-03-13 | 2018-03-13 | Lens and light-emitting device comprising same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109458575A (en) * | 2019-01-08 | 2019-03-12 | 广东省半导体产业技术研究院 | Luminescent device light guiding lens and luminescent device |
| CN110030505B (en) * | 2019-03-22 | 2021-03-23 | 厦门立达信照明有限公司 | Light guide lens and mask lamp with uniform brightness of lampshade |
| CN114935867A (en) * | 2022-06-01 | 2022-08-23 | 环鸿电子（昆山）有限公司 | Light emitting device and lens structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103874880A (en) * | 2011-10-20 | 2014-06-18 | 欧司朗有限公司 | Semiconductor light device comprising a lens having a light deflection structure |
| CN106594674A (en) * | 2016-10-26 | 2017-04-26 | 佛山市中山大学研究院 | Collimating lens based on point light source |
| CN208138922U (en) * | 2018-03-13 | 2018-11-23 | 深圳市百康光电有限公司 | A kind of lens and the light emitting device including the lens |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010028755B4 (en) * | 2009-05-09 | 2023-02-23 | Citizen Electronics Co., Ltd. | Lens element and optical unit using the lens element |
| WO2013065408A1 (en) * | 2011-11-04 | 2013-05-10 | コニカミノルタ株式会社 | Led light emitting device, and lens for led light emitting device |
| CN104373896A (en) * | 2014-11-05 | 2015-02-25 | 深圳市众明半导体照明有限公司 | Optical lens and lamp comprising same |
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2018
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103874880A (en) * | 2011-10-20 | 2014-06-18 | 欧司朗有限公司 | Semiconductor light device comprising a lens having a light deflection structure |
| CN106594674A (en) * | 2016-10-26 | 2017-04-26 | 佛山市中山大学研究院 | Collimating lens based on point light source |
| CN208138922U (en) * | 2018-03-13 | 2018-11-23 | 深圳市百康光电有限公司 | A kind of lens and the light emitting device including the lens |
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| CN108253381A (en) | 2018-07-06 |
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