CN217085496U - Laser projection lamp - Google Patents
Laser projection lamp Download PDFInfo
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- CN217085496U CN217085496U CN202122582914.1U CN202122582914U CN217085496U CN 217085496 U CN217085496 U CN 217085496U CN 202122582914 U CN202122582914 U CN 202122582914U CN 217085496 U CN217085496 U CN 217085496U
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- laser
- doe element
- projection lamp
- collimating mirror
- light source
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Abstract
A laser projection lamp comprises a laser light source and a light distribution assembly, wherein the light distribution assembly comprises a collimating mirror and a DOE element, and laser sequentially passes through the collimating mirror and the DOE element. The utility model discloses the principle: laser beams emitted by the laser light source are changed into relatively parallel beams through the collimating mirror, the laser beams enter the DOE element, and are diffracted by the optical protrusions on the surface of the DOE element to form specific light spots, and the light spots are stable in performance; by customizing the optical protrusions on the surface of the DOE element, a specific projection pattern can be formed; the optical system consists of a laser light source, a collimating mirror and a DOE element, has a simple optical mechanism and a small volume, and is particularly suitable for projection in a vehicle.
Description
Technical Field
The utility model relates to a lamps and lanterns, especially a laser projection lamp.
Background
An existing pattern projection lamp generally comprises an LED light source, a film and a lens group, for example, a pattern projection lamp disclosed in Chinese patent publication No. CN108286676A, which comprises a lamp cylinder and a front cover, an aluminum substrate is fixed in the lamp cylinder, an LED light-emitting chip is arranged on the aluminum substrate, a condensing lens support is arranged on the aluminum substrate, a condensing lens is arranged in the condensing lens support, the condensing lens is correspondingly covered on the LED light-emitting chip, a condensing lens pressing plate for pressing the condensing lens is arranged on the condensing lens support, a film fixing support is arranged on the condensing lens pressing plate, the film fixing support is arranged on the condensing lens support, the film is arranged on the film fixing support, a film pressing plate is covered on the film, and the film pressing plate and the film fixing support are fixed. Still be provided with the motor on aluminium base board, motor shaft is worn out perpendicularly from aluminium base board intermediate position, and motor shaft passes collector lens support, collector lens clamp plate, film piece fixed bolster, film, behind the film clamp plate at the front end fixed with the imaging mirror. The glass cover is arranged on the lamp tube opening, the waterproof ring is arranged between the glass cover and the lamp tube opening, and the front cover is pressed on the glass cover and fixed with the lamp tube opening. The projection lamp is large in number of applied lenses, complex and large in size of an optical system, high in assembly precision requirement and prone to defocusing to cause spot distortion.
Disclosure of Invention
The utility model aims to solve the technical problem that a laser projection lamp is provided, simple structure, it is small, the facula performance is stable.
In order to solve the technical problem, the technical scheme of the utility model is that: a laser projection lamp comprises a laser light source and a light distribution assembly, wherein the light distribution assembly comprises a collimating mirror and a DOE element, and laser sequentially passes through the collimating mirror and the DOE element. The utility model discloses the principle: laser beams emitted by the laser light source are changed into relatively parallel beams through the collimating mirror, the laser beams enter the DOE element and are diffracted by the optical protrusions on the surface of the DOE element to form specific light spots, and the light spots are stable in performance; by customizing the optical protrusions on the surface of the DOE element, a specific projection pattern can be formed; the optical system consists of a laser light source, a collimating mirror and a DOE element, has a simple optical mechanism and a small volume, and is particularly suitable for projection in a vehicle.
As an improvement, the laser light source and the light distribution component are integrated to form a projector, and the projector is fixed in the shell through a mounting seat.
As a modification, the housing includes a bottom cover and a face cover; and the bottom cover is provided with a positioning column and a clamping pin.
As an improvement, a main board used for controlling the laser light source is arranged in the shell.
As an improvement, the mainboard is controlled by wire or wireless.
As an improvement, the mount includes left and right installation portions that clamp the projector.
Compared with the prior art, the utility model the beneficial effect who brings is:
laser beams emitted by the laser light source are changed into relatively parallel beams through the collimating mirror, the laser beams enter the DOE element and are diffracted by the optical protrusions on the surface of the DOE element to form specific light spots, and the light spots are stable in performance; by customizing the optical protrusions on the surface of the DOE element, a specific projection pattern can be formed; the optical system consists of a laser light source, a collimating mirror and a DOE element, has a simple optical mechanism and a small volume, and is particularly suitable for projection in a vehicle.
Drawings
Fig. 1 is an exploded view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a laser projection lamp includes a housing, a laser light source and a light distribution assembly, the laser light source and the light distribution assembly are integrated together to form a projector 5, and the projector 5 is fixed in the housing through a mounting seat. The light distribution assembly comprises a collimating mirror and a DOE element, and laser sequentially passes through the collimating mirror and the DOE element; in order to enable the spot to be shadowed to a given area, the projector 5 may also be provided with a reflector cup 3. The shell comprises a bottom cover 1 and a face cover 2, wherein a positioning column and a clamping pin 8 are arranged on the bottom cover 1, and the clamping pin 8 and the positioning column are used for installing and fixing the projection lamp. The projector 5 is fixed in the casing through the mount pad, the mount pad includes left installation department 6 and right installation department 7, and left installation department 6 and right installation department 7 are with 5 centre grippings of projector, and left installation department 6 and right installation department 7 are fixed respectively in the both sides of bottom 1, and laser light source is the slope setting, conveniently projects the skylight position in the car. The laser lamp is characterized in that a main board 4 used for controlling a laser light source is arranged in the shell, and the main board 4 is controlled in a wired or wireless mode.
The utility model discloses the principle: laser beams emitted by the laser light source are changed into relatively parallel beams through the collimating mirror, the laser beams enter the DOE element and are diffracted by the optical protrusions on the surface of the DOE element to form specific light spots, and the light spots are stable in performance; by customizing the optical protrusions on the surface of the DOE element, a specific projection pattern can be formed; the optical system consists of a laser light source, a collimating mirror and a DOE element, has a simple optical mechanism and a small volume, and is particularly suitable for projection in a vehicle.
Claims (6)
1. The utility model provides a laser projection lamp, includes laser source and grading subassembly, its characterized in that: the light distribution assembly comprises a collimating mirror and a DOE element, laser sequentially passes through the collimating mirror and the DOE element, and an optical protrusion is arranged on the surface of the DOE element.
2. A laser projection lamp as claimed in claim 1, characterized in that: the laser light source and the light distribution assembly are integrated together to form a projector, and the projector is fixed in the shell through the mounting seat.
3. A laser projection lamp as claimed in claim 2, characterized in that: the shell comprises a bottom cover and a face cover; and the bottom cover is provided with a positioning column and a clamping pin.
4. A laser projection lamp as claimed in claim 2, characterized in that: and a main board for controlling the laser light source is arranged in the shell.
5. A laser projection lamp as claimed in claim 4, characterized in that: the main board is controlled by wire or wireless.
6. A laser projection lamp as claimed in claim 2, characterized in that: the mount pad includes left installation department and right installation department, and left installation department and right installation department are with the projecting apparatus centre gripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122582914.1U CN217085496U (en) | 2021-10-26 | 2021-10-26 | Laser projection lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122582914.1U CN217085496U (en) | 2021-10-26 | 2021-10-26 | Laser projection lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217085496U true CN217085496U (en) | 2022-07-29 |
Family
ID=82497045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122582914.1U Active CN217085496U (en) | 2021-10-26 | 2021-10-26 | Laser projection lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217085496U (en) |
-
2021
- 2021-10-26 CN CN202122582914.1U patent/CN217085496U/en active Active
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