CN216591129U - Optical system and lamp - Google Patents
Optical system and lamp Download PDFInfo
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- CN216591129U CN216591129U CN202122657348.6U CN202122657348U CN216591129U CN 216591129 U CN216591129 U CN 216591129U CN 202122657348 U CN202122657348 U CN 202122657348U CN 216591129 U CN216591129 U CN 216591129U
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Abstract
The utility model provides an optical system and a lamp, wherein the optical system comprises a light source and a light splitting element arranged in the light emitting direction of the light source, the light splitting element is provided with a first reflecting surface and a second reflecting surface which are oppositely arranged, the light source is divided into two parts by the light splitting element, one part of the two parts is positioned on one side of the first reflecting surface, the other part of the two parts is positioned on one side of the second reflecting surface, and the light splitting element is configured as follows: light rays emitted by the light source are reflected to the outer side through the first reflecting surface and the second reflecting surface respectively. Compared with the prior art, the light splitting element is arranged at the light source, so that the light emitted from the center of the lamp is reflected to a larger angle after passing through the light splitting element, the illumination range and the brightness of the lamp are enlarged, and the light splitting element is suitable for forward lighting and backward lighting of roads and is not easy to cause glare.
Description
Technical Field
The utility model relates to an optical system and a lamp, and belongs to the technical field of illumination.
Background
At present, in road lighting, the technical scheme of adding a lens to an LED lamp bead is mostly used for street lamps, and secondary light distribution is carried out through a reflector, so that the utilization rate of a light source is improved. However, when the LED is used, the uniformity of light is poor, and the central position collects more overlapped light, so that the illuminance is strong, and the light at the far periphery is less, so that the illuminance is low, and the brightness is not uniform, so that the LED light source cannot be effectively and reasonably utilized. Although the reflective street lamp is more uniform in illumination, it is difficult to increase the light distribution angle.
Accordingly, an optical system and a lamp are needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an optical system and a lamp, which can distribute central light to two sides.
In order to achieve the above object, the present invention provides an optical system, including a light source and a light splitting element disposed in a light emitting direction of the light source, the light splitting element having a first reflecting surface and a second reflecting surface disposed opposite to each other, the light splitting element dividing the light source into two parts, one of which is located on a side of the first reflecting surface and the other of which is located on a side of the second reflecting surface, the light splitting element being configured to: the light rays emitted by the light source are reflected towards the outer side through the first reflecting surface and the second reflecting surface respectively.
As a further improvement of the present invention, the first reflection surface and the second reflection surface are symmetrically disposed along a light emitting direction of the light source.
As a further improvement of the present invention, the light source includes a light emitting element having a light emitting surface, and the light splitting element is disposed on the light emitting element and divides the light emitting surface into two parts.
As a further improvement of the present invention, the light splitting element is disposed at a symmetrical position of the light emitting element and divides the light emitting surface into two equal parts so as to equalize the amounts of the light rays reflected respectively via the first reflecting surface and the second reflecting surface.
As a further improvement of the present invention, the light splitting element is disposed at an asymmetric position of the light emitting element and divides the light emitting surface into two unequal portions so that the amounts of light rays reflected respectively via the first reflecting surface and the second reflecting surface are unequal.
As a further improvement of the present invention, the light splitting element further includes a third interface connected to the first reflecting surface and the second reflecting surface, respectively, and the third interface is disposed on a side away from the light source and parallel to the light emitting surface.
As a further improvement of the present invention, the first reflecting surface and the second reflecting surface are combined into a V shape and formed on both outer sidewalls of the light splitting element, and the first reflecting surface and the second reflecting surface are curved toward the third interface.
As a further improvement of the present invention, both the first reflecting surface and the second reflecting surface are free-form surfaces.
As a further improvement of the present invention, the light splitting element extends perpendicularly to the light emitting surface and in a horizontal direction, and a length of the light splitting element in an extending direction thereof is greater than or equal to a length of the light emitting surface in the direction.
As a further improvement of the present invention, an orthographic area of the light splitting element on the light emitting surface is smaller than or equal to an area of the light emitting surface.
As a further improvement of the utility model, the light source comprises a plurality of LED lamp beads, and the LED lamp beads are respectively arranged on two sides of the extending direction of the light splitting element.
As a further improvement of the present invention, the led lamp beads on both sides of the light splitting element have the same number, so that the amounts of the light rays reflected by the first reflecting surface and the second reflecting surface are equal.
As a further improvement of the present invention, the led lamp beads on two sides of the light splitting element have different numbers, so that the light beams reflected by the first reflecting surface and the second reflecting surface have different amounts.
As a further improvement of the present invention, the optical system further includes a light reflecting cup, the bottom of the light reflecting cup is rectangular, the light source and the light splitting element are disposed in the light reflecting cup, and the light source is disposed near one of the long sides of the rectangle.
As a further improvement of the present invention, the extending direction of the light splitting element is perpendicular to the length direction of the light reflecting cup, so as to reflect the light emitted by the light source to two sides of the length direction of the light reflecting cup.
In order to achieve the above object, the present invention further provides a lamp, wherein the optical system is arranged in the lamp.
The utility model has the beneficial effects that: the light splitting element is arranged at the light source, so that light rays emitted from the center of the lamp are reflected to a larger angle after passing through the light splitting element, the illumination range and the brightness of the lamp are enlarged, and the light splitting component is suitable for forward illumination and backward illumination of roads and is not easy to cause glare.
Drawings
FIG. 1 is a schematic diagram of the structure of the optical system of the present invention.
Fig. 2 is a schematic diagram of the optical path structure of the light splitting element in the optical system of the present invention.
In fig. 3, fig. 3a is a schematic view of forward illumination of a road with a beam splitter element at a position to the left of the center position in the optical system of the present invention, and fig. 3b is a schematic view of light distribution in fig. 3 a.
In fig. 4, fig. 4a is a schematic view of illumination on both sides of a road with a beam splitter element at a central position in an optical system according to the present invention, and fig. 4b is a schematic view of light distribution in fig. 4 a.
In fig. 5, fig. 5a is a schematic diagram of the backlighting of a road with a beam splitter element at different positions to the right in the optical system of the present invention, and fig. 5b is a schematic diagram of the light distribution of fig. 5 a.
Reference numerals:
100. a light fixture;
10. a light reflecting cup;
20. a light source;
30. a light-splitting element; 31. a first reflective surface; 32. a second reflective surface; 33. a third interface.
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, the present invention discloses a lamp 100, wherein the lamp 100 is a street lamp, and a light splitting element 30 for dispersing central light to two sides is disposed below the lamp 100. Of course, in other embodiments of the present invention, the luminaire 100 includes, but is not limited to, a street lamp, which is not described in detail herein, nor is it limited in any way. For clarity of description, the following description will take the light splitting element 30 as an example for application to a street lamp.
The lamp 100 comprises a lamp post and an optical system arranged on the lamp post, the optical system comprises a reflective cup 10, a light source 20 and a light splitting element 30, the light source 20 and the light splitting element 30 are both arranged in the reflective cup 10, the light splitting element 30 is arranged in the light emitting direction of the light source 20, the light splitting element 30 divides the light source 20 into two parts, and the light emitting angle of the light source 20 is changed according to different positions of the light splitting element 30. The light splitting element 30 includes, but is not limited to, a material such as glass, as long as the light emitted from the light source 20 can be reflected by the light splitting element 30.
Specifically, the reflective cup 10 has an inner cavity in a shape of a frustum of a pyramid, the bottom of the reflective cup 10 is rectangular and includes a length direction and a width direction, the length direction of the reflective cup 10 is consistent with the extending direction of the road, the width direction of the reflective cup 10 corresponds to two sides of the road, and the arrangement maximizes the irradiation range of the lamp 100 along the extending direction of the road. It should be noted that, when the luminaire 100 is a street lamp, the light source 20 is arranged on one side of the road, and the light source 20 is required to be arranged in the reflective cup 10 close to the side, that is, the light source 20 is arranged close to one side of the long side of the reflective cup 10.
The light splitting element 30 includes a first reflecting surface 31, a second reflecting surface 32 and a third interface 33, which are connected in sequence, the light splitting element 30 is similar to a triangular prism extending along a horizontal direction, and one corner of the triangular prism is disposed toward the light source 20, that is, the first reflecting surface 31 and the second reflecting surface 32 are combined into a V shape and formed on two outer side walls of the light splitting element 30, so that the first reflecting surface 31 and the second reflecting surface 32 are both disposed obliquely and oppositely toward the light source 20, the third interface 33 is horizontally disposed on one side far away from the light source 20, and the extending direction of the light splitting element 30 is perpendicular to the length direction of the reflector cup 10, so as to reflect the light emitted by the light source 20 to two sides of the length direction of the reflector cup 10. It is understood that the light emitted from the light source 20 may also be reflected by the reflective cup 10 to the first reflective surface 31 and the second reflective surface 32, and then reflected outward by the first reflective surface 31 and the second reflective surface 32. Preferably, the first reflecting surface 31 and the second reflecting surface 32 are symmetrically arranged along the light emitting direction of the light source 20, and the light splitting element 30 may be arranged at the center of the light source 20, so that the light emitting portions on both sides of the light splitting element 30 are the same, so that the amounts of the light reflected by the first reflecting surface 31 and the second reflecting surface 32 are substantially the same, and the arrangement is such that the irradiation ranges on both sides of the front and back along the road extending direction are the same when the lamp 100 irradiates the ground. Of course, when an unconventional road is encountered, the illumination range of the lamp 100 may be adjusted by adjusting the position of the light splitting element 30 relative to the light source 20 on the horizontal plane, that is, the light distribution ratio of the light splitting element 30 relative to the position of the light source 20 is changed, and the light emitting surface is divided into two unequal parts to enhance the unilateral illumination, so that the light splitting device is suitable for the forward illumination and the backward illumination of the road.
In a preferred embodiment of the present invention, the first reflecting surface 31 and the second reflecting surface 32 are both curved toward the third interface 33, that is, the first reflecting surface 31 and the second reflecting surface 32 are both curved toward the inside of the light splitting element 30, so that the light emitted from the light source 20 is diverged by the first reflecting surface 31 and the second reflecting surface 32, respectively, thereby increasing the light distribution angle and widening the range of light irradiation. Further, the angle of the light can be controlled by controlling the degree of bending of the first reflecting surface 31 and the second reflecting surface 32, and the angle can be specifically set according to needs, and is not limited herein. Preferably, the first reflecting surface 31 and the second reflecting surface 32 are both free-form surfaces.
In other embodiments of the present invention, the light source 20 includes a light emitting element having a light emitting surface, the light splitting element 30 is disposed on the light emitting element and divides the light emitting surface into two parts, the third interface 33 is parallel to the light emitting surface, and the light splitting element 30 can abut against the light emitting surface. The light splitting element 30 extends in a direction parallel to the first reflecting surface 31 and the second reflecting surface 32, which is equivalent to the light splitting element 30 extending in a direction perpendicular to the light emitting surface and in a horizontal direction, and the length of the light splitting element 30 in the extending direction is greater than or equal to the length of the light emitting surface in the direction, so that the light emitted from the light source 20 toward the center can be sufficiently reflected by the first reflecting surface 31 or the second reflecting surface 32.
Further, the length of the third interface 33 in the direction perpendicular to the extending direction of the light splitting element 30 is less than or equal to the length of the light emitting surface in the direction, that is, the orthographic area of the light splitting element 30 on the light emitting surface is less than or equal to the area of the light emitting surface. When the third interface 33 is large enough, the third interface 33 can block the direct light rays of the light source 20 in the vertical direction and make the light rays pass through the light splitting element 30 to generate reflection. Of course, the specific size of the third interface 33 can be set according to the requirement, and is not limited herein.
In other embodiments of the present invention, the light source 20 includes a plurality of led lamp beads, and the led lamp beads are respectively disposed on two sides of the extending direction of the light splitting element 30. The number of led lamp beads on two sides of the light splitting element 30 may be the same, so as to obtain the same lamp effect, and certainly, the number of led lamp beads may also be different, and by setting the number of led lamp beads, it is equivalent to change the relative position of the light splitting element 30, so as to change the angle of the light emitted by the light source 20, so that the amounts of the light reflected by the first reflecting surface 31 and the second reflecting surface 32 are substantially equal or unequal.
In another embodiment of the present invention, the first reflective surface 31 and the second reflective surface 32 may also be reflective surfaces, and the arrangement is such that the light emitted from the light source 20 is reflected by the first reflective surface 31 and the second reflective surface 32, and then reflected to the reflective cup 10, so as to reduce the illumination at the central portion of the lamp 100 and enhance the illumination at both sides.
In summary, in the present invention, the light splitting element 30 is disposed at the light source 20, so that the light emitted from the center of the lamp 100 is reflected to a larger angle after passing through the light splitting element 30, thereby increasing the illumination range and brightness of the lamp 100, and being suitable for forward lighting and backward lighting of a road, and not causing glare easily.
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 (16)
1. An optical system, characterized by: the light source device comprises a light source (20) and a light splitting element (30) arranged in the light emitting direction of the light source (20), wherein the light splitting element (30) is provided with a first reflecting surface (31) and a second reflecting surface (32) which are oppositely arranged, the light source (20) is divided into two parts by the light splitting element (30), one part of the two parts is positioned on the side of the first reflecting surface (31), the other part of the two parts is positioned on the side of the second reflecting surface (32), and the light splitting element (30) is configured to: the light emitted by the light source (20) is reflected to the outside by the first reflecting surface (31) and the second reflecting surface (32), respectively.
2. The optical system of claim 1, wherein: the first reflecting surface (31) and the second reflecting surface (32) are symmetrically arranged along the light emitting direction of the light source (20).
3. The optical system of claim 1, wherein: the light source (20) comprises a light emitting element having a light emitting surface, and the light splitting element (30) is disposed on the light emitting element and divides the light emitting surface into two parts.
4. The optical system of claim 3, wherein: the light splitting element (30) is arranged at a symmetrical position of the light emitting element and divides the light emitting surface into two equal parts so as to equalize the amounts of light rays reflected respectively by the first reflecting surface (31) and the second reflecting surface (32).
5. The optical system of claim 3, wherein: the light splitting element (30) is arranged at an asymmetric position of the light emitting element and divides the light emitting surface into two unequal parts so as to enable the light quantity reflected by the first reflecting surface (31) and the second reflecting surface (32) to be unequal.
6. The optical system of claim 3, wherein: the light splitting element (30) further comprises a third interface (33) connected with the first reflecting surface (31) and the second reflecting surface (32) respectively, and the third interface (33) is arranged on one side far away from the light source (20) and parallel to the light emitting surface.
7. The optical system of claim 6, wherein: the first reflecting surface (31) and the second reflecting surface (32) are combined into a V shape and formed on two outer side walls of the light splitting element (30), and the first reflecting surface (31) and the second reflecting surface (32) are bent towards the direction of the third interface (33).
8. The optical system of claim 7, wherein: the first reflecting surface (31) and the second reflecting surface (32) are both free-form surfaces.
9. The optical system of claim 3, wherein: the light splitting element (30) is perpendicular to the light emitting surface and extends along the horizontal direction, and the length of the light splitting element (30) in the extending direction is larger than or equal to the length of the light emitting surface in the direction.
10. The optical system of claim 9, wherein: the orthographic projection area of the light splitting element (30) on the light emitting surface is smaller than or equal to the area of the light emitting surface.
11. The optical system of claim 1, wherein: the light source (20) comprises a plurality of LED lamp beads which are respectively arranged on two sides of the extending direction of the light splitting element (30).
12. The optical system of claim 11, wherein: the quantity of led lamp beads on two sides of the light splitting element (30) is the same, so that the quantity of light reflected by the first reflecting surface (31) and the second reflecting surface (32) is equal.
13. The optical system of claim 11, wherein: the quantity of led lamp beads on two sides of the light splitting element (30) is different, so that the quantity of light rays reflected by the first reflecting surface (31) and the second reflecting surface (32) is different.
14. The optical system of claim 1, wherein: the optical system further comprises a reflecting cup (10), the bottom of the reflecting cup (10) is rectangular, the light source (20) and the light splitting element (30) are arranged in the reflecting cup (10), and the light source (20) is arranged close to one long side of the rectangle.
15. The optical system of claim 14, wherein: the extending direction of the light splitting element (30) is perpendicular to the length direction of the reflecting cup (10) so as to reflect the light rays emitted by the light source (20) to two sides of the length direction of the reflecting cup (10).
16. A luminaire (100) characterized by: the luminaire (100) is provided with an optical system according to any one of claims 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122657348.6U CN216591129U (en) | 2021-11-02 | 2021-11-02 | Optical system and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122657348.6U CN216591129U (en) | 2021-11-02 | 2021-11-02 | Optical system and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216591129U true CN216591129U (en) | 2022-05-24 |
Family
ID=81643166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122657348.6U Active CN216591129U (en) | 2021-11-02 | 2021-11-02 | Optical system and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216591129U (en) |
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2021
- 2021-11-02 CN CN202122657348.6U patent/CN216591129U/en active Active
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