CN216079653U - TIR lens and lamp - Google Patents
TIR lens and lamp Download PDFInfo
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- CN216079653U CN216079653U CN202121418292.2U CN202121418292U CN216079653U CN 216079653 U CN216079653 U CN 216079653U CN 202121418292 U CN202121418292 U CN 202121418292U CN 216079653 U CN216079653 U CN 216079653U
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- tir lens
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- light
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- flange edge
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Abstract
The utility model relates to a TIR lens, which is provided with a flange edge, wherein an included angle between a bus of the flange edge and the horizontal direction is 30-70 degrees. The utility model also provides a corresponding lamp. By adopting the TIR lens and the lamp, the directions of partial light rays are changed by adjusting the direction of the generatrix of the flange edge, and stray light of the outer ring of a light spot is eliminated.
Description
Technical Field
The utility model relates to the technical field of optics, and particularly provides a TIR lens.
Background
In a lamp, the most commonly used optical device is a TIR lens, and when the lamp using this lens is turned on, a circle of stray light 1 in the form of a distinct bright ring often appears at the outer ring of the main spot, as shown in fig. 1.
In order to eliminate the problem, the most commonly used mode at present is to perform a shading treatment on the light-emitting surface of the lens, and cover the stray light by diffusing the distribution range of the main light spots, so that the mode cannot fundamentally solve the problem, and simultaneously causes the problems of non-centralized distribution of the main light spots, light loss of shading and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a TIR lens and a lamp aiming at the defects of the prior art.
In order to achieve the above object, the technical solution of the TIR lens of the present invention is as follows:
the TIR lens is provided with a flange edge, and an included angle between a bus of the flange edge and the horizontal direction is 30-70 degrees.
Preferably, the generatrix of the flange edge is a straight line.
The utility model provides a lamp comprising the TIR lens.
By adopting the TIR lens and the lamp, the directions of partial light rays are changed by adjusting the direction of the generatrix of the flange edge, and stray light of the outer ring of a light spot is eliminated.
Drawings
Fig. 1 is a schematic diagram of a light spot emitted by a TIR lens in a conventional lamp.
Fig. 2 is a schematic structural diagram of the lamp of the present invention.
Fig. 3 is a cross-sectional view of the lamp of fig. 2.
Fig. 4 is a schematic structural diagram of the TIR lens of the present invention.
Fig. 5 is a cross-sectional view of the TIR lens of fig. 4.
Fig. 6 is a schematic diagram of a TIR lens in which the generatrix of the flange is at an angle of 30 ° to the horizontal.
Fig. 7 is a schematic diagram of the TIR lens in which the generatrix of the flange is at an angle of 70 ° to the horizontal.
FIG. 8 is a schematic diagram of a light spot emitted by the TIR lens in the lamp of the present invention.
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
Referring to fig. 2-3, an embodiment of the lamp 2 of the present invention is shown, wherein the lamp 2 comprises a lamp source 3 and a TIR lens 4. As shown in fig. 4 to 5, the TIR lens 4 has a flange 5, and an included angle between a bus 6 of the flange 5 and a horizontal direction is 30 ° to 70 ° to change an exit direction of a part of light incident on the flange. And the generatrix 6 of the flange edge 5 is a straight line.
FIG. 6 shows that the included angle between the generatrix of the flanged edge of the TIR lens and the horizontal direction is 30 °; fig. 7 shows that the generatrix of the flanged edge of the TIR lens is at an angle of 70 ° to the horizontal.
The conventional bus on the flange side is a straight line which forms 90 degrees with the horizontal direction, and the stray light is caused by the light emitted after the light source enters the lens and is totally reflected for several times on the flange side through the analysis of the light path; based on the TIR lens and the corresponding lamp, as shown in FIG. 8, stray light on the outer ring of the light spot can be eliminated.
By adopting the TIR lens and the lamp, the directions of partial light rays are changed by adjusting the direction of the generatrix of the flange edge, and stray light of the outer ring of a light spot is eliminated.
In this specification, the utility model has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the utility model. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (3)
1. The TIR lens is characterized in that the TIR lens is provided with a flange edge, and an included angle between a generatrix of the flange edge and the horizontal direction is 30-70 degrees.
2. The TIR lens of claim 1 wherein said generatrix of said flanged edge is a straight line.
3. A luminaire comprising the TIR lens of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121418292.2U CN216079653U (en) | 2021-06-25 | 2021-06-25 | TIR lens and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121418292.2U CN216079653U (en) | 2021-06-25 | 2021-06-25 | TIR lens and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216079653U true CN216079653U (en) | 2022-03-18 |
Family
ID=80664372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121418292.2U Active CN216079653U (en) | 2021-06-25 | 2021-06-25 | TIR lens and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216079653U (en) |
-
2021
- 2021-06-25 CN CN202121418292.2U patent/CN216079653U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |