CN214535836U - Lighting device and lens - Google Patents
Lighting device and lens Download PDFInfo
- Publication number
- CN214535836U CN214535836U CN202120717347.3U CN202120717347U CN214535836U CN 214535836 U CN214535836 U CN 214535836U CN 202120717347 U CN202120717347 U CN 202120717347U CN 214535836 U CN214535836 U CN 214535836U
- Authority
- CN
- China
- Prior art keywords
- light
- reflection
- lens
- reflecting
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lenses (AREA)
Abstract
The application discloses lighting device and lens, wherein, lens include the lens body, the lens body has at its axial first end and second end, first end is provided with goes out plain noodles and first plane of reflection, the second end is provided with income plain noodles and second plane of reflection, the second plane of reflection sets up with first plane of reflection relatively, the second plane of reflection has the center of encircleing the second plane of reflection, and a plurality of archs along the radial distribution of second plane of reflection, part arch is provided with plane reflection portion towards one side at second plane of reflection center, another part arch is provided with cambered surface reflection portion towards center one side of second plane of reflection, light can distribute in first plane of reflection after passing the income plain noodles, first plane of reflection can be with light reflection to the plane reflection portion and the cambered surface reflection portion of second plane of reflection, plane reflection portion and cambered surface reflection portion can be with light reflection to the play plain noodles. The plane reflection part and the cambered surface reflection part can effectively control the problem of uneven light spots caused by cross light control.
Description
Technical Field
The application belongs to the technical field of lamps and lanterns, concretely relates to lighting device and lens.
Background
The spot lamp as a local key lighting lamp has the appearance size and glare which are always difficult for various manufacturers to overcome, and although some manufacturers have provided spot lamps for eliminating the large-angle glare in recent years, none of the spot lamps can get rid of the size limitation, and even part of the spot lamps are at the expense of the size.
And because of the structural limitation of part of small-sized spot lamps, the light emitted by the spot lamps often has the problems of uneven bright rings and uneven light spots.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application aims to provide a lighting device and a lens, and the problem that a bright ring and light spots of light emitted by a current spotlight are uneven can be solved.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, the present application discloses a lens comprising a lens body;
the lens body is provided with a first end and a second end which are opposite, the first end is provided with a light outgoing surface and a first reflecting surface, the second end is provided with a light incoming surface and a second reflecting surface, the second reflecting surface is provided with a plurality of bulges, the bulges are provided with a first side and a second side which are opposite to each other, and the first side is provided with a plane reflecting part and a plane reflecting part, the other part is arranged on the first side, the first side is provided with an arc surface reflecting part, light rays penetrate through the light incoming surface and can be distributed on the first reflecting surface, the first reflecting surface can reflect the light rays to the plane reflecting part and the arc surface reflecting part, and the plane reflecting part and the arc surface reflecting part can reflect the light rays to the light outgoing surface.
In a second aspect, the present application discloses a lighting device comprising a light source section and the above-mentioned lens; the light source part is arranged on the light source plate, the light source part is arranged on the light source part, and the light source part is arranged on the light source part.
Compared with the related art, in the lens disclosed in the embodiment of the application, the first reflecting surface and the second reflecting surface which are opposite to each other are arranged in the lens body, so that the light can be reflected to the light-emitting surface by the second reflecting surface after being reflected to the second reflecting surface by the first reflecting surface, and the light can be folded by multiple reflections to effectively reduce the overall thickness of the lens body. One side of the lens body, which is back to the second reflecting surface, is provided with a groove, so that the structure of the lens body is similar to that of a Fresnel lens, the groove can form a plurality of bulges on the second reflecting surface, light is reflected to the plurality of bulged reflecting parts by the first reflecting surface, the light can be controlled by each reflecting part independently, and a bright ring formed on the light-emitting surface after the light penetrates out of the light-emitting surface is uniform. The bellied reflecting part of part is plane reflecting part, and the bellied reflecting part of another part is cambered surface reflecting part, can the homogenization because of the inhomogeneous facula that light alternately formed through setting up plane reflecting part and cambered surface reflecting part for the effect of looking after that light formed after passing the lens disclosed in the embodiment of this application is better.
Drawings
FIG. 1 is a schematic cross-sectional view of a lens disclosed in an embodiment of the present application;
fig. 2 is a schematic overall structure diagram of a lighting device disclosed in an embodiment of the present application;
FIG. 3 is a schematic diagram of a lens body of a lens disclosed in an embodiment of the present application on a side facing away from a second reflective surface;
fig. 4 is a schematic view of a light-emitting surface side of a lens disclosed in the embodiment of the present application.
Description of reference numerals:
100-a lens body, 110-a light-emitting surface, 120-a first reflecting surface, 130-a light-in surface, 140-a second reflecting surface, 150-a protrusion, 151-a plane reflecting part, 152-an arc reflecting part, 160-a third reflecting surface, 170-a groove,
200-light source part.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The technical solutions disclosed in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present application discloses a lens, which includes a lens body 100, wherein the lens body 100 is an optical element, and a material of the optical element may be organic glass, resin or other materials with good optical performance, which is not limited in the present application. The lens body 100 has good light passing performance and light reflecting performance. The lens described above may be applied in a lighting device.
The lens body 100 has a first end and a second end, wherein the first end is provided with a light emitting surface 110 and a first reflecting surface 120, and the second end is provided with a light incident surface 130 and a second reflecting surface 140. The first end and the second end are disposed oppositely, so that the first reflecting surface 120 and the second reflecting surface 140 are disposed oppositely, the first reflecting surface 120 and the light incident surface 130 are also disposed oppositely, meanwhile, the light emitting surface 110 and the second reflecting surface 140 are disposed oppositely, and the light emitting surface 110 and the light incident surface 130 are also disposed oppositely. The light rays can enter the lens body 100 through the light incident surface 130 and irradiate the first reflection surface 120, after the light rays irradiate the first reflection surface 120, the light rays can be reflected to the second reflection surface 140 through the first reflection surface 120, then the light rays are reflected to the light emitting surface 110 through the second reflection surface 140, and the light rays can pass through the light emitting surface 110 after being reflected by the second reflection surface 140.
The first reflecting surface 120 and the second reflecting surface 140 are arranged oppositely, so that light can be reflected to the light emitting surface 110 by the second reflecting surface 140 after being reflected to the second reflecting surface 140 by the first reflecting surface 120, and the light can be folded and reflected by the second reflecting surface 140 through multiple reflections, so that the thickness of the lens disclosed by the embodiment of the application can be effectively reduced, the structure of the lens is more compact, and the thickness of the lens is thinner.
The light can be dispersed everywhere in first plane of reflection 120 after passing through income plain noodles 130, reaches the purpose of diffusion light path, can do benefit to like this that light is diffused in second plane of reflection 140 everywhere after being reflected by first plane of reflection 120, reduces first plane of reflection 120's the design degree of difficulty. Meanwhile, the above-mentioned structural design can also prevent the light rays refracted to the first reflection surface 120 through the light incident surface 130 from crossing the light rays reflected to the second reflection surface 140 by the first reflection surface 120, and can also prevent the light rays reflected to the second reflection surface 140 by the first reflection surface 120 from crossing. Therefore, the lens disclosed by the embodiment of the application has a better light emitting effect.
The second reflective surface 140 is provided with a plurality of protrusions 150, the protrusions 150 have a first side and a second side opposite to each other, wherein the first side of the protrusions 150 is provided with a reflective portion. When the first reflective surface 120 reflects the light to the second reflective surface 140, the first reflective surface 120 can reflect the light to the reflective portion on the first side of the plurality of protrusions 150, so that the bright rings formed on the light emitting surface 110 when the light reflected by the second reflective surface 140 passes through the light emitting surface 110 are uniformly distributed. Meanwhile, the reflection portion of each protrusion 150 can also play a role in controlling light, and each beam of light reflected to the reflection portion of the protrusion 150 is controlled to be light independently, so that the influence of stray light at a large angle is reduced, the light distribution angle is accurately controlled, the illumination effect formed after the light passes through the light emitting surface 110 is better, and the generation of glare is reduced.
In general, a plurality of grooves 170 may be disposed on a side of the lens body 100 opposite to the second reflection surface 140, and the grooves 170 enable a plurality of the protrusions 150 to be formed on the second reflection surface 140, so that the lens body 100 is similar to a fresnel lens in structure. The weight of the lens body 100 can be reduced by providing the groove 170, so that the lens disclosed in the embodiment of the present application is lighter.
The first side of one part of the protrusion 150 is a flat reflection part 151, and the first side of the other part of the protrusion 150 is a cambered reflection part 152. When light is reflected to the reflection part of each protrusion 150 on the second reflection surface 140 by the first reflection surface 120, in order to prevent the light reflected to the edge close to the second reflection surface 140 by the first reflection surface 120 from intersecting with the light reflected to the light exit surface 110 by the central area close to the second reflection surface 140 to cause uneven light spots, the uneven light spots generated by the intersection of the light can be homogenized by arranging the plane reflection part 151 and the cambered surface reflection part 152, so that the illumination effect formed by the light passing through the lens disclosed by the embodiment of the application is better, and the light spots are more uniform.
In the lens disclosed in the embodiment of the application, by arranging the first reflecting surface 120 and the second reflecting surface 140 opposite to each other in the lens body 100, light can irradiate the first reflecting surface 120 after entering the lens through the light incident surface 130, the light is reflected to the second reflecting surface 140 by the first reflecting surface 120, and then is reflected to the light emitting surface 110 by the second reflecting surface 140, and the light can be folded through multiple reflections to effectively reduce the overall thickness of the lens body 100. The side of the lens body 100 facing away from the second reflection surface 140 is provided with the groove 170, so that the lens body 100 has a structure similar to a fresnel lens, the groove 170 can form a plurality of protrusions 150 on the second reflection surface 140, and the light reflected by the first reflection surface 120 to the reflection portion on the first side of the plurality of protrusions 150 can be controlled by each reflection portion individually, so that the light penetrates through the light exit surface 110 and forms a uniform bright ring on the light exit surface 110. The first side of the part of the protrusion 150 is provided with the plane reflection part 151, the first side of the other part of the protrusion 150 is provided with the arc reflection part 152, and uneven light spots formed by light intersection can be homogenized by the plane reflection part 151 and the arc reflection part 152, so that the light emitting effect of the lens disclosed by the embodiment of the application is better.
The light incident surface 130, the light emitting surface 110, the first reflecting surface 120 and the second reflecting surface 140 are integrated on the lens body 100, so that the volume of the lens body 100 is smaller, and accordingly, a lighting device using the lens can have a smaller volume. Meanwhile, in the process that light enters the lens body 100 from the light incident surface 130 to be emitted from the light emitting surface 110, the light is transmitted inside the lens body 100, so that the influence of the external environment on the transmission of the light can be avoided, the light path of the light is more accurate, and the light control effect of the lens disclosed by the application is better.
Optionally, the lens disclosed in the embodiment of the present application may adopt a convolution lens, specifically, the light emitting surface 110 is disposed around the first reflecting surface 120, and the second reflecting surface 140 is disposed around the light incident surface 130, generally, the area of the first reflecting surface 120 is smaller than the area of the light emitting surface 110, and the area of the second reflecting surface 140 is larger than the area of the light incident surface 130. The central axes of the light emitting surface 110, the first reflecting surface 120, the light incident surface 130 and the second reflecting surface 140 are collinear, so that the light incident surface 130 is opposite to the first reflecting surface 120, and the second reflecting surface 140 is opposite to the light emitting surface 110, so that light can be favorably dispersed in each part of the first reflecting surface 120 after passing through the light incident surface 130, and the light can be favorably reflected to the plane reflecting part 151 and the cambered surface reflecting part 152 of the second reflecting surface 140 by the first reflecting surface 120. While the distance between the light incident surface 130 and the first reflecting surface 120 can be relatively maximized, and the distance between the first reflecting surface 120 and the second reflecting surface 140 can be relatively maximized. Therefore, the propagation distance of the light in the lens body 100 can be increased, the light can be favorably diffused in the first reflecting surface 120 and the second reflecting surface 140, and the design difficulty of the light incident surface 130, the first reflecting surface 120 and the second reflecting surface 140 is reduced.
Optionally, the plurality of protrusions 150 may be arranged in a ring shape, specifically, the plurality of protrusions 150 surrounds the center of the second reflecting surface 140 and is distributed along the radial direction of the second reflecting surface 140, and accordingly, the first side is a side of the protrusion 150 facing the center of the second reflecting surface 140, and the second side is a side of the protrusion 150 facing away from the center of the second reflecting surface 140, so that the arrangement of the protrusions 150 enables the structure of the lens disclosed in the embodiment of the present application to be similar to a fresnel lens, and simultaneously enables the structure of the lens body 100 to be more compact, so that the areas of the planar reflecting portion 151 and the arc reflecting portion 152 are larger, and the reflecting effect is better.
Of course, the plurality of protrusions 150 may be disposed on one side of the second reflecting surface 140 and distributed along a predetermined direction, which is not limited in this application.
Optionally, the arc-shaped reflection portion 152 is disposed near the center of the second reflection surface 140, and the planar reflection portion 151 is disposed far from the center of the second reflection surface 140, specifically, in the plurality of protrusions 150, the arc-shaped reflection portion 152 is disposed relative to the protrusion 150 near the center of the second reflection surface 140, and the planar reflection portion 151 is disposed relative to the protrusion 150 far from the center of the second reflection surface 140, so that the effect of homogenizing uneven light spots generated due to light intersection between the planar reflection portion 151 and the arc-shaped reflection portion 152 is better.
Optionally, the first reflecting surface 120 of the lens body 100 is a free-form surface, and the purpose of the free-form surface is to reflect the light irradiated to the first reflecting surface 120 to the plane reflecting portion 151 and the arc reflecting portion 152 of the second reflecting surface 140. The specific structure of the free-form surface can be determined according to the size of the second reflective surface 140 and the positions of the planar reflective portion 151 and the arc reflective portion 152, and the purpose of the free-form surface is to reflect light to each of the planar reflective portion 151 and the arc reflective portion 152.
In order to enhance the reflection effect of the first reflection surface 120, a reflection film may be disposed on the surface of the first reflection surface 120, so that the first reflection surface 120 has a better reflection effect, and at the same time, the first reflection surface 120 can also be protected.
Optionally, the lens body 100 has a third reflection surface 160 located at the periphery of the second reflection surface 140 and surrounding the second reflection surface 140, a part of the light reflected by the first reflection surface 120 may exceed the edge of the second reflection surface 140 and be diffused to the outside of the second reflection surface 140, and the third reflection surface 160 is configured to reflect the part of the light to the light-emitting surface 110, so that the part of the light can pass through the light-emitting surface 110 without being wasted, and the light-emitting effect of the lens disclosed in the embodiment of the present application is better. In general, the third reflection surface 160 described above may be a circumferential inner wall of the lens body 100, and a reflection film may be provided on the circumferential inner wall of the lens body 100 to form the third reflection surface 160.
Based on the above-mentioned lens, the present application further discloses an illumination device, which includes a light source portion 200 and the above-mentioned lens, wherein the light source portion 200 can emit light, and the light emitting direction of the light source portion 200 faces the light incident surface 130, so that the light emitted by the light source portion 200 can pass through the light incident surface 130 and then be refracted to each position of the first reflection surface 120, generally, the light source portion 200 can be set to be on the central axis of the lens body 100, and thus, the light emitted by the light source portion 200 can be directly incident on the light incident surface 130, and the structure of the illumination device is simplified.
Optionally, the light source 200 may adopt an LED lamp, and the LED lamp has the advantages of high luminous efficiency and low light attenuation, so that the lighting device disclosed in the embodiment of the present application has a more excellent lighting effect.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A lens, comprising: a lens body (100);
wherein the lens body (100) is provided with a first end and a second end which are opposite, the first end is provided with a light-emitting surface (110) and a first reflecting surface (120), the second end is provided with a light incident surface (130) and a second reflecting surface (140), the second reflecting surface (140) is provided with a plurality of bulges (150), the protrusion (150) is provided with a first side and a second side which are opposite, a planar reflection part (151) is arranged on the first side of one part of the protrusion (150), an arc surface reflection part (152) is arranged on the first side of the other part of the protrusion (150), and light rays can be distributed on the first reflection surface (120) after passing through the light incident surface (130), the first reflecting surface (120) can reflect light to the plane reflecting part (151) and the cambered surface reflecting part (152), the plane reflection part (151) and the cambered surface reflection part (152) can reflect light to the light emitting surface (110).
2. The lens of claim 1, wherein the lens is a lens of a gyro type, the light exit surface (110) is disposed around the first reflective surface (120), and the second reflective surface (140) is disposed around the light entrance surface (130).
3. The lens of claim 2, wherein central axes of the light exit surface (110), the first reflective surface (120), the light entrance surface (130), and the second reflective surface (140) are collinear.
4. The lens of claim 3, wherein a plurality of the protrusions (150) surround the center of the second reflecting surface (140) and are distributed along the radial direction of the second reflecting surface (140), the first side is located on the side of the protrusion (150) facing the center of the second reflecting surface (140), and the second side is located on the side of the protrusion (150) facing away from the center of the second reflecting surface (140).
5. The lens of claim 4, wherein the curved reflector portion (152) is disposed proximate a center of the second reflector surface (140) and the planar reflector portion (151) is disposed distal from the center of the second reflector surface (140).
6. The lens of claim 1, wherein the first reflective surface (120) is a free-form surface.
7. The lens according to claim 6, characterized in that the surface of the first reflecting surface (120) is provided with a reflective film.
8. The lens of claim 1, wherein the lens body (100) has a third reflective surface (160) located at the periphery of the second reflective surface (140) and surrounding the second reflective surface (140).
9. A lighting device characterized by comprising a light source section (200) and the lens according to any one of claims 1 to 8; the light emitting direction of the light source part (200) faces the light incident surface (130), and the first reflecting surface (120) can reflect the light rays emitted by the light source part (200) to the plane reflecting part (151) and the cambered surface reflecting part (152).
10. The lighting device according to claim 9, wherein the light source unit (200) is an LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120717347.3U CN214535836U (en) | 2021-04-08 | 2021-04-08 | Lighting device and lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120717347.3U CN214535836U (en) | 2021-04-08 | 2021-04-08 | Lighting device and lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214535836U true CN214535836U (en) | 2021-10-29 |
Family
ID=78271638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120717347.3U Active CN214535836U (en) | 2021-04-08 | 2021-04-08 | Lighting device and lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214535836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071388A1 (en) * | 2021-11-01 | 2023-05-04 | 浙江吉利控股集团有限公司 | Lamp and automobile |
-
2021
- 2021-04-08 CN CN202120717347.3U patent/CN214535836U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023071388A1 (en) * | 2021-11-01 | 2023-05-04 | 浙江吉利控股集团有限公司 | Lamp and automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8068707B1 (en) | Illuminating devices including uniform light distribution, multiple light sources, and multiple types of light sources | |
| US8308326B2 (en) | Lighting or signaling device comprising a curved light guiding plate | |
| JP5596418B2 (en) | Vehicle lighting | |
| JP5779096B2 (en) | Lighting system, lighting fixture, collimator, and display device | |
| JP6356997B2 (en) | Light flux controlling member, light emitting device, surface light source device, and display device | |
| CN107614964B (en) | Light flux controlling member, light emitting device, and lighting device | |
| CN103511935A (en) | Lighting device | |
| CN214535836U (en) | Lighting device and lens | |
| JP2013012380A (en) | Luminous flux control member, light-emitting device having the same, and surface light source device having the light-emitting device | |
| CN111207366A (en) | Light splitting lens, full-circumference light-emitting lamp and working method thereof | |
| CN109268707B (en) | Light distribution element, light source assembly and lighting lamp | |
| WO2020088292A1 (en) | Light distribution element, light source assembly, and illumination lamp | |
| CN217714794U (en) | Optical structure of vehicle lamp and vehicle lamp thereof | |
| CN111033349B (en) | Total internal reflection lens for reducing glare while maintaining color mixing and beam control of LED light sources | |
| CN110307524A (en) | A kind of new type reflection and refractive optics TV lens | |
| JP2015118818A (en) | Lighting appliance | |
| JP2019192471A (en) | Lighting fixture for vehicle | |
| WO2021063146A1 (en) | Light distribution assembly and illuminating lamp | |
| CN210179534U (en) | Low-glare optical lens and lamp module thereof | |
| JP2003346526A (en) | Light control element and illuminating device using the same | |
| CN112576944A (en) | Lighting system | |
| CN214580894U (en) | Diffusion lens and lighting device | |
| KR20200079862A (en) | lamp for vehicle | |
| CN215675060U (en) | Light guide and lamp | |
| CN209068438U (en) | A kind of light-strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |