CN217154072U - Lens device for interior lighting lamp - Google Patents
Lens device for interior lighting lamp Download PDFInfo
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- CN217154072U CN217154072U CN202220621405.7U CN202220621405U CN217154072U CN 217154072 U CN217154072 U CN 217154072U CN 202220621405 U CN202220621405 U CN 202220621405U CN 217154072 U CN217154072 U CN 217154072U
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- light modulation
- lens
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Abstract
The utility model provides a lens arrangement for interior lighting lamp, include the frame, fix the collimating lens of frame open end, be formed with the cavity in the frame, be equipped with reflector panel, first light modulation board, second light modulation board in the cavity in proper order, first light modulation board lean on to a terminal surface of second light modulation board is equipped with the microlens array, the second light modulation board lean on to collimating lens one side sets up, second light modulation board up end is the income plain noodles, second light modulation board right-hand member face is the play plain noodles, still be equipped with the light source in the cavity, the light source is located second light modulation board upside, still be equipped with the reflector plate in the cavity, the reflector plate is located the light source with between the collimating lens, the reflector plate slope sets up and its plane of reflection orientation the second light modulation board. The utility model discloses a lens device can solve the uneven problem of play plain noodles light intensity of the great and side income formula light source of current lens device volume.
Description
Technical Field
The utility model relates to a lens technical field, concretely relates to a lens device for interior lighting lamp of car.
Background
Lens devices are often used in interior lighting lamps to provide illumination to the interior of a vehicle. In the lens device in the prior art, the light source is usually arranged on the back of the lens, and a reflector is required, so that the whole structure is large, and the occupied space is large. In order to solve this problem, some manufacturers have developed a lens device, in which the light source is designed to be of a side-entry type, and the reflector is replaced by a reflector, so that the size of the lens device can be greatly reduced. However, this structure has the following problems: because the light source is placed at one side, the position close to the light source has stronger light, the position far away from the light source has sparse light, and the light intensity at each position of the light-emitting surface is uneven.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a lens device for interior lighting lamp can solve the uneven problem of play plain noodles light intensity of the great and side income formula light source of current lens device volume.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a lens device for interior lighting lamp, includes the frame, fixes the collimating lens of frame open end, be formed with the cavity in the frame, be equipped with reflector panel, first light modulation board, second light modulation board in the cavity in proper order, first light modulation board lean on to a terminal surface of second light modulation board is equipped with the microlens array, the second light modulation board lean on to collimating lens one side sets up, second light modulation board up end is the income plain noodles, second light modulation board right-hand member face is the play plain noodles, still be equipped with the light source in the cavity, the light source is located second light modulation board upside, still be equipped with the reflector plate in the cavity, the reflector plate is located the light source with between the collimating lens, the reflector plate slope sets up and its plane of reflection orientation the second light modulation board.
Specifically, the first light modulation plate and the second light modulation plate are connected through OCA optical cement.
Specifically, a V-shaped groove lattice is arranged on the upper side of the light emitting surface of the second light modulation plate.
Specifically, a radiating fin is arranged in the cavity and is positioned on one side of the reflector.
Specifically, the collimating lens is a plano-convex lens.
Specifically, a light shielding sheet is arranged between the second light modulation plate and the collimating lens, and a pattern or character light transmission area is arranged on the light shielding sheet.
The utility model has the advantages that:
the lens device of the utility model designs the light source into a side-entering structure, and adopts the reflector to replace the traditional reflector, thereby greatly reducing the whole volume of the lens device, in addition, a first light modulation plate and a second light modulation plate are added on one side of the reflector, one end surface of the first light modulation plate is provided with a micro lens array, the micro lens array can make light more divergent, thereby making the light intensity of each position of the light-emitting surface uniform; in addition, aiming at the problem of light sparseness at the far position of the light source, a reflector plate is additionally arranged between the light source and the collimating lens, the reflector plate is obliquely arranged, the reflecting surface of the reflector plate faces the second light modulation plate, and part of light can be irradiated to the far position away from the light source through reflection of the reflector plate, so that the effect of light reinforcement at the local position is achieved; aiming at the problem that the light intensity near the light source is strong, the V-shaped groove dot matrix is arranged on the upper side of the light emitting surface of the second light modulation plate, and the phenomenon that the local light intensity is strong can be avoided through the divergence effect of the V-shaped groove dot matrix on the light rays.
Drawings
Fig. 1 is a schematic structural diagram of a lens device for an interior lighting lamp according to the present invention.
The reference signs are: the backlight module comprises an outer frame 1, a collimating lens 2, a reflector 3, a first light modulation plate 4, a second light modulation plate 5, a micro-lens array 6, a light source 7, a reflector 8, a V-shaped groove dot matrix 9, a heat sink 10 and a shading sheet 11.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1:
a lens device for an interior lighting lamp comprises an outer frame 1 and a collimating lens 2 fixed at the open end of the outer frame 1, wherein the collimating lens 2 is a plano-convex lens, a cavity is formed in the outer frame 1, a reflector 3, a first light modulation plate 4 and a second light modulation plate 5 are sequentially arranged in the cavity, a micro-lens array 6 is arranged at one end face, close to the second light modulation plate 5, of the first light modulation plate 4, the micro-lens array 6 can enable emergent rays to be more divergent, so that the light intensity of the light emergent face of the collimating lens 2 is uniform at each position, the second light modulation plate 5 is arranged close to one side of the collimating lens 2, the upper end face of the second light modulation plate 5 is a light incident face, the right end face of the second light modulation plate 5 is a light emergent face, a light source 7 is further arranged in the cavity, the light source 7 is positioned at the upper side of the second light modulation plate 5, the light source 7 is designed into a side-in type structure, the reflector 3 is adopted to replace the traditional reflector, and the whole volume of the lens device can be greatly reduced, still be equipped with reflector plate 8 in the cavity, reflector plate 8 is located between light source 7 and collimating lens 2, to the sparse problem in the light of position far away from light source 7, has increased reflector plate 8 between light source 7 and collimating lens 2, and the slope of reflector plate 8 sets up and its plane of reflection is towards second light modulation board 5, and partial light can shine the position far away from the light source through the reflection of reflector plate 8 to reach the effect of local position light reinforcement.
Preferably, the first light modulation panel 4 and the second light modulation panel 5 are connected by OCA optical cement.
Preferably, the V-shaped groove dot matrix 9 is further disposed on the upper side of the light emitting surface of the second light modulation plate 5 for solving the problem of strong light intensity near the light source, and the phenomenon of strong local light intensity can be avoided through the divergence effect of the V-shaped groove dot matrix on the light.
Preferably, in order to improve the heat dissipation performance of the lens device, a heat sink 10 is disposed in the cavity, and the heat sink 10 is located on the side of the light reflection plate 3.
Preferably, a light shielding sheet 11 is arranged between the second light modulation plate 5 and the collimating lens 2, a pattern or character light transmitting area is arranged on the light shielding sheet 11, a user can design the pattern or character according to actual requirements, and light rays pass through the pattern or character light transmitting area to show a light effect with the character or pattern.
The above examples only represent 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (6)
1. The lens device for the vehicle interior lighting lamp is characterized by comprising an outer frame (1) and a collimating lens (2) fixed at the opening end of the outer frame (1), wherein a cavity is formed in the outer frame (1), a reflector (3), a first light adjusting plate (4) and a second light adjusting plate (5) are sequentially arranged in the cavity, a micro-lens array (6) is arranged on one end face, close to the second light adjusting plate (5), of the first light adjusting plate (4), the second light adjusting plate (5) is arranged close to one side of the collimating lens (2), the upper end face of the second light adjusting plate (5) is a light inlet face, the right end face of the second light adjusting plate (5) is a light outlet face, a light source (7) is further arranged in the cavity, the light source (7) is located on the upper side of the second light adjusting plate (5), a reflector (8) is further arranged in the cavity, and the reflector (8) is located between the light source (7) and the collimating lens (2), the reflecting sheet (8) is arranged obliquely and the reflecting surface faces the second light modulation plate (5).
2. The lens device for a vehicle interior lighting lamp according to claim 1, wherein the first light modulation panel (4) and the second light modulation panel (5) are connected by OCA optical cement.
3. The lens device for a vehicle interior lighting lamp according to claim 1, wherein the upper side of the light emitting surface of the second light modulation plate (5) is provided with a V-shaped groove lattice (9).
4. The lens device for the vehicle interior lighting lamp according to claim 1, wherein a heat sink (10) is disposed in the cavity, and the heat sink (10) is located on one side of the reflector (3).
5. A lens arrangement for a vehicle interior lighting lamp as claimed in claim 1, characterized in that the collimator lens (2) is a plano-convex lens.
6. The lens device for a vehicle interior lighting lamp according to claim 1, wherein a light shielding sheet (11) is disposed between the second light modulation plate (5) and the collimating lens (2), and the light shielding sheet (11) is provided with a pattern or character light transmission region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220621405.7U CN217154072U (en) | 2022-03-21 | 2022-03-21 | Lens device for interior lighting lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220621405.7U CN217154072U (en) | 2022-03-21 | 2022-03-21 | Lens device for interior lighting lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217154072U true CN217154072U (en) | 2022-08-09 |
Family
ID=82695228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220621405.7U Active CN217154072U (en) | 2022-03-21 | 2022-03-21 | Lens device for interior lighting lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217154072U (en) |
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2022
- 2022-03-21 CN CN202220621405.7U patent/CN217154072U/en active Active
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