CN216346069U - Optical element and lamp - Google Patents
Optical element and lamp Download PDFInfo
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- CN216346069U CN216346069U CN202122563520.1U CN202122563520U CN216346069U CN 216346069 U CN216346069 U CN 216346069U CN 202122563520 U CN202122563520 U CN 202122563520U CN 216346069 U CN216346069 U CN 216346069U
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Abstract
The utility model provides an optical element and a lamp, wherein the optical element is applied to the lamp and used for changing the light emitting angle of the lamp, the optical element comprises a light incident surface and a light emitting surface which are arranged close to a light source, an optical space between the light incident surface and the light emitting surface is formed in the optical element, the optical space is provided with a first interface which is arranged close to the light incident surface, and the light emitting surface and the first interface are both curved surfaces and are bent towards the same direction. Compared with the prior art, the optical element is provided with the optical space to form the double-lens structure, so that the light rays are refracted for four times through the four interfaces, the light-emitting angle of the light rays can be effectively controlled, and different light effects can be generated.
Description
Technical Field
The utility model relates to an optical element and a lamp, and belongs to the technical field of illumination.
Background
In the existing silica gel strip lamp, a mode that an LED light source is additionally provided with a silica gel strip is generally adopted, but incident light rays are difficult to effectively control only by taking a single silica gel strip as a lens. In the prior art, the lens module is usually additionally installed, but this results in a more complicated structure of the lamp, which further increases the cost.
Accordingly, it is desirable to provide an optical device and a lamp to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an optical element and a lamp, which can effectively control the light-emitting angle of light.
In order to achieve the above object, the present invention provides an optical element applied in a lamp and used for changing a light emitting angle of the lamp, wherein the optical element includes a light incident surface and a light emitting surface which are disposed near a light source, an optical space between the light incident surface and the light emitting surface is formed in the optical element, the optical space has a first interface disposed near the light incident surface, and the light emitting surface and the first interface are both curved surfaces and are bent in the same direction.
As a further improvement of the present invention, the light emitting surface and the first interface are both free-form surfaces.
As a further improvement of the present invention, the optical space further includes a second interface disposed close to the light emitting surface, and the light incident surface and the second interface are both planar and parallel to each other.
As a further improvement of the present invention, the optical space further includes a second interface disposed close to the light emitting surface, and both the light incident surface and the second interface are curved surfaces and are bent in the same direction.
As a further improvement of the present invention, the direction in which the light incident surface and the second interface are bent is opposite to the direction in which the light emitting surface and the first interface are bent.
As a further improvement of the present invention, the light incident surface, the light emitting surface, the first interface, and the second interface are all free curved surfaces.
As a further improvement of the utility model, the optical space is a hollow structure.
As a further improvement of the present invention, an optical medium attached to the optical element is provided in the optical space, and a refractive index of the optical medium is smaller than a refractive index of the optical element.
As a further improvement of the present invention, a sectional height of the optical space in the light outgoing direction is in positive correlation with a distance from the optical element to the light source, and in negative correlation with a transmittance of the optical element.
As a further development of the utility model, the optical element is produced from a silicone material by an extrusion process.
In order to achieve the above object, the present invention further provides a lamp, wherein the lamp is provided with the optical element as described above, two sides of the optical element are provided with mounting portions, the lamp is provided with a receiving cavity for receiving the optical element, and two sides of the receiving cavity are provided with matching portions corresponding to the mounting portions, so that the optical element is fixed in the receiving cavity.
As a further improvement of the utility model, the mounting portion and the mating portion are snapped, glued or screwed to each other.
The utility model has the beneficial effects that: the optical element is provided with the optical space to form a double-lens structure, so that light rays are refracted for four times through four interfaces, the light-emitting angle of the light rays can be effectively controlled, and different light effects can be generated.
Drawings
Fig. 1 is a schematic cross-sectional view of a lamp according to the present invention.
FIG. 2 is a schematic cross-sectional view of an optical element of the lamp according to the present invention.
Reference numerals:
100. a light fixture;
10. a housing; 11. a side wall; 12. a connecting wall; 13. an accommodating cavity; 14. a fitting portion;
20. a light source assembly; 21. a substrate; 22. a light source;
30. an optical element; 31. a light incident surface; 32. a light-emitting surface; 33. an optical space; 34. a first interface; 35. a second interface; 36. an installation part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1 to 2, the present invention discloses a lamp 100, wherein the lamp 100 is a ring lamp, and includes a ring-shaped housing 10 and an optical element 30 covering the housing 10, the optical element 30 is made of a silicone material and is processed into a strip shape by an extrusion process, and can be bent according to the shape of the lamp 100. Of course, in other embodiments of the present invention, the luminaire 100 includes, but is not limited to, a bar shape or other shapes, and the optical element 30 can be bent into a corresponding shape, which is not described in detail herein, nor is it limited in any way. For clarity of description, the following description will take the optical element 30 as an example to be applied to the luminaire 100.
As shown in fig. 1, the lamp 100 includes a housing 10, a light source assembly 20, and an optical element 30, wherein the light source assembly 20 and the optical element 30 are both accommodated in the housing 10. The shell 10 is annular and comprises a pair of side walls 11 which are nested with each other and are concentrically arranged, and a connecting wall 12 which connects the side walls 11, wherein the side walls 11 and the connecting wall 12 are both made of aluminum alloy materials, so that the weight of the shell 10 can be reduced while the structural strength is ensured, and the heat dissipation effect is enhanced. The pair of side walls 11 and the connecting wall 12 are enclosed to form a receiving cavity 13 in the housing 10, and the receiving cavity 13 is shaped like a circular groove and has an opening on a side opposite to the connecting wall 12. Preferably, the light source assembly 20 is disposed in the accommodating cavity 13, the optical element 30 is disposed at an opening of the accommodating cavity 13, and the light emitted from the light source assembly 20 is refracted by the optical element 30 and then emitted to the outside.
The light source assembly 20 includes a substrate 21 and a light source 22, preferably, the light source 22 is a led lamp bead, and the light source 22 is disposed toward the opening. The base plate 21 is arranged on the connecting wall 12, the base plate 21 is distributed along the annular containing cavity 13, and the light sources 22 are provided with a plurality of annular light sources and are uniformly arranged on the base plate 21. In other embodiments of the present invention, the light source 22 may be offset on the substrate 21, so as to change the angle of illumination of the light source 22, which may be specifically set according to the requirement, and is not limited herein.
As shown in fig. 2, in the preferred embodiment of the present invention, the optical element 30 includes a light incident surface 31 and a light emitting surface 32 disposed close to the light source 22, and the light emitted from the light source 22 is refracted at the light incident surface 31 and the light emitting surface 32, respectively. An optical space 33 is formed in the optical element 30 and located between the light incident surface 31 and the light emitting surface 32, an extending direction of the optical space 33 is the same as an extending direction of the housing 10, and the light source 22 is disposed toward the optical space 33, so that light emitted by the light source 22 can pass through the optical space 33 and irradiate the outside of the optical element 30. Specifically, the optical space 33 has a first interface 34 disposed near the light incident surface 31 and a second interface 35 disposed near the light emitting surface 32, so that the light emitted from the light source 22 passes through the light incident surface 31, the first interface 34, the second interface 35 and the light emitting surface 32 in sequence and is refracted four times.
Preferably, the light emitting surface 32 and the first interface 34 are both free-form surfaces, the light incident surface 31 and the second interface 35 are both planar and parallel to each other, and the light emitting surface 32 and the first interface 34 are both curved in the same direction. When the light emitting surface 32 and the first interface 34 are both bent in a direction away from the light source 22, the light incident surface 31 and the first interface 34 form a primary convex lens, the second interface 35 and the light emitting surface 32 form a secondary convex lens, and light rays emitted by the light source 22 are converged by the primary convex lens and the secondary convex lens respectively, so that a beam angle is reduced, and the light rays are more concentrated. When the light emitting surface 32 and the first interface 34 are both bent toward the light source 22, the light incident surface 31 and the first interface 34 form a primary concave lens, the second interface 35 and the light emitting surface 32 form a secondary concave lens, and the light emitted by the light source 22 is diverged by the primary concave lens and the secondary concave lens, so that the light distribution angle is increased, and the light irradiation range is wider. Further, the angle of the light can be controlled by controlling the degree of bending of the light emitting surface 32 and the first interface 34, and the angle can be specifically set according to the requirement, which is not limited herein.
It is understood that, in the above embodiment, the light incident surface 31 and the second interface 35 may also be configured as free-form surfaces, and the bending direction of the light incident surface 31 and the second interface 35 is opposite to the bending direction of the light emergent surface 32 and the first interface 34, so that the light incident surface 31 and the first interface 34 form a concave lens or a convex lens, and the second interface 35 and the light emergent surface 32 also form a concave lens or a convex lens, which is not limited herein.
In other embodiments of the present invention, the optical space 33 is a hollow structure, that is, the optical space 33 is filled with air, and the light emitted from the light source 22 is refracted when passing through the interface formed by the optical element 30 and the optical space 33, so as to change the light emitting angle of the light source 22, thereby setting the irradiation range of the light source 22. In another embodiment of the present invention, the optical space 33 may be provided with an optical medium different from air, and the refractive index of the optical medium is smaller than that of the optical element 30, so that when the light emitted from the light source 22 passes through the optical space 33, different light effects are obtained.
In another embodiment of the present invention, a light mixing cavity located in the accommodating cavity 13 is formed between the optical element 30 and the light source 22, and the light mixing cavity is used for mixing the light rays emitted by the light source 22 before entering the light incident surface 31, so as to reduce or eliminate the granular sensation generated on the surface of the optical element 30. In this embodiment, if the distance between the optical element 30 and the light source 22 is small, the thickness of the optical element 30 needs to be increased or a material with low transmittance is adopted for the optical element 30, so as to further reduce the granular sensation generated on the surface of the optical element 30.
To better eliminate the graininess on the surface of the optical element 30, the following description will be made with reference to specific parameters. Specifically, the height of the cross section of the optical space 33 in the light outgoing direction is positively correlated with the distance between the optical element 30 and the light source 22; likewise, the height of the cross section of the optical space 33 in the light exit direction is inversely related to the transmittance of the optical element 30.
In another embodiment of the present invention, the optical element 30 is provided with mounting portions 36 on both sides thereof, the accommodating cavity 13 is provided with mating portions 14 on both sides thereof corresponding to the mounting portions 36, and the mounting portions 36 and the mating portions 14 are clamped to each other, so that the optical element 30 is fixed in the accommodating cavity 13. Specifically, the mounting portion 36 may be a protrusion protruding from two sides of the optical element 30, and the matching portion 14 may be a recess recessed from two sides of the receiving cavity 13, and the protrusion and the recess are engaged with each other to fix the optical element 30. Of course, it is understood that the mounting portion 36 may also be a concave portion, the matching portion 14 may also be a convex portion, and the mounting portion 36 and the matching portion 14 may also be glued or screwed, and may be specifically disposed according to the requirement, and is not limited herein.
In summary, the optical element 30 of the present invention is provided with the optical space 33 to form a double-lens structure, so that the light is refracted four times through four interfaces, and the light-emitting angle of the light can be effectively controlled to generate different light effects.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (12)
1. An optical element (30) for use in a luminaire (100) and for changing the light exit angle of said luminaire (100), characterized by: optical element (30) are including being close to income plain noodles (31) and the play plain noodles (32) that light source (22) set up, be formed with in optical element (30) and be located go into plain noodles (31) with go out optical space (33) between plain noodles (32), optical space (33) have be close to go into first interface (34) that plain noodles (31) set up, go out plain noodles (32) with first interface (34) are the curved surface and bend towards the same direction.
2. The optical element (30) of claim 1, wherein: the light-emitting surface (32) and the first interface (34) are both free-form surfaces.
3. The optical element (30) of claim 1, wherein: the optical space (33) further comprises a second interface (35) which is close to the light emitting surface (32), and the light incident surface (31) and the second interface (35) are both planar and parallel to each other.
4. The optical element (30) of claim 1, wherein: the optical space (33) further comprises a second interface (35) which is close to the light emitting surface (32), and the light incident surface (31) and the second interface (35) are both curved surfaces and are bent towards the same direction.
5. The optical element (30) of claim 4, wherein: the direction in which the light incident surface (31) and the second interface (35) are bent is opposite to the direction in which the light emitting surface (32) and the first interface (34) are bent.
6. The optical element (30) according to claim 4 or 5, characterized in that: the light incident surface (31), the light emitting surface (32), the first interface (34) and the second interface (35) are all free-form surfaces.
7. The optical element (30) of claim 1, wherein: the optical space (33) is a hollow structure.
8. The optical element (30) of claim 1, wherein: an optical medium attached to the optical element (30) is provided in the optical space (33), and the refractive index of the optical medium is smaller than the refractive index of the optical element (30).
9. The optical element (30) of claim 1, wherein: the height of the cross section of the optical space (33) in the light-emitting direction is positively correlated with the distance from the optical element (30) to the light source (22), and negatively correlated with the transmittance of the optical element (30).
10. The optical element (30) of claim 1, wherein: the optical element (30) is formed by processing a silica gel material through an extrusion process.
11. A luminaire (100) characterized by: the lamp (100) is provided with the optical element (30) as claimed in any one of claims 1 to 10, both sides of the optical element (30) are provided with mounting portions (36), the lamp (100) is provided with a containing cavity (13) for containing the optical element (30), and both sides in the containing cavity (13) are provided with matching portions (14) corresponding to the mounting portions (36) so as to fix the optical element (30) in the containing cavity (13).
12. The luminaire of claim 11, wherein: the mounting part (36) and the matching part (14) are mutually clamped, connected by glue or connected by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122563520.1U CN216346069U (en) | 2021-10-25 | 2021-10-25 | Optical element and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122563520.1U CN216346069U (en) | 2021-10-25 | 2021-10-25 | Optical element and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216346069U true CN216346069U (en) | 2022-04-19 |
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ID=81181361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122563520.1U Active CN216346069U (en) | 2021-10-25 | 2021-10-25 | Optical element and lamp |
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| Country | Link |
|---|---|
| CN (1) | CN216346069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051836A1 (en) * | 2022-09-08 | 2024-03-14 | 苏州欧普照明有限公司 | Protection assembly, linear lighting assembly, light source assembly and lamp |
-
2021
- 2021-10-25 CN CN202122563520.1U patent/CN216346069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051836A1 (en) * | 2022-09-08 | 2024-03-14 | 苏州欧普照明有限公司 | Protection assembly, linear lighting assembly, light source assembly and lamp |
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