CN210864215U - Miniature infrared laser lighting device - Google Patents
Miniature infrared laser lighting device Download PDFInfo
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- CN210864215U CN210864215U CN201922147710.8U CN201922147710U CN210864215U CN 210864215 U CN210864215 U CN 210864215U CN 201922147710 U CN201922147710 U CN 201922147710U CN 210864215 U CN210864215 U CN 210864215U
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Abstract
The utility model discloses a micro infrared laser lighting device, which comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a cylindrical stepped hole; the laser diode is arranged in the large aperture of the cylindrical stepped hole; the heat dissipation assembly comprises a heat dissipation block and heat dissipation blades, the heat dissipation block is close to the laser diode and is arranged in the small aperture of the cylindrical stepped hole, and the heat dissipation blades are arranged on the first shell and are close to the outer side of the small aperture end of the cylindrical stepped hole; the second shell is close to the heat dissipation block and is in sliding fit with the inner wall with the small aperture of the cylindrical stepped hole; and the lens assembly comprises a first lens, a second lens and a third lens which are sequentially arranged in the second shell along an optical axis, wherein the first lens is a biconcave lens, the second lens is a biconvex lens, and the third lens is a concave-convex lens. The utility model discloses an optimize structure and optical system miniaturization, realize the facula homogenization, keep watch on the distance far away (up to 2km), the scope is big, can not receive external illumination influence (anti highlight), low power dissipation, it is portable, characteristics such as low cost.
Description
Technical Field
The utility model belongs to the technical field of laser lighting, especially, relate to a miniature infrared laser lighting device.
Background
In recent years, the infrared laser illumination system has the advantages of long working distance, low power consumption, no interference, mature technology and the like, the miniature infrared night vision illumination system emits invisible near-infrared laser beams, is mainly used in cooperation with an infrared night vision device, night infrared photography and videography, infrared illumination, night target hiding indication and observation, security photography and monitor illumination, police traffic identification, reverse interference target monitors and the like, and can be widely applied to the fields of security, military reconnaissance, field search and rescue, scientific research and the like.
Factors such as atmospheric background radiation, transmittance, scattering and absorption, turbulence and the like all affect active illumination imaging, and the problems of uneven light spots, large divergence angle, speckle of the light spots and diffraction rings exist.
In the prior art, a single lens is adopted for collimation, light spots are not shaped, and the divergence angle is large; but the irradiation distance is only hundreds of meters, the range is large, and the structure volume is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a miniature infrared laser lighting device.
In order to solve the technical problem, the technical scheme of the utility model is that: a miniature infrared laser lighting device comprises a light source,
a first housing provided with a cylindrical stepped hole;
the laser diode is arranged in the large aperture of the cylindrical stepped hole;
the second shell is close to the heat dissipation block and connected with the inner wall of the small aperture of the cylindrical stepped hole, and the central axes of the first shell and the second shell are superposed with the optical axis of the laser diode;
the lens assembly comprises a first lens, a second lens and a third lens which are sequentially arranged in the second shell along an optical axis, wherein the first lens is a biconcave lens, the second lens is a biconvex lens, the third lens is a concave-convex lens, one end of the first lens is close to the laser diode, the other end of the first lens is connected with one end of the second lens, and the other end of the second lens is attached to a concave surface of the third lens.
Preferably, radiator unit, including radiating block and radiating blade, the radiating block is close to laser diode and installs in the aperture of cylinder shoulder hole, and radiating blade installs on first casing and is close to the outside of the aperture end of cylinder shoulder hole.
Preferably, the first shell is provided with heat dissipation holes close to the heat dissipation blades.
Preferably, the outer diameters of the first lens, the second lens and the third lens are all 5.5mm, and the wavelengths are all 800-1100 nm.
Preferably, the lighting device adopts a waterproof, smog-proof and moisture-proof sealing structure.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses miniature infrared laser lighting device optimizes structure spare and optical system miniaturization, realizes the facula homogenization, has overcome speckle, diffraction ring problem, can satisfy the continuous video monitoring demand of the all-weather cooperation high definition camera of large range, long distance;
(2) the utility model adopts the lens group composed of a plurality of high-precision antireflection film pure optical lenses and the lens group composed of a plurality of high-precision coated micro lens lenses to optimize different light spot modes emitted by the diode into a nearly circular light spot, and the technology in the aspects of uniformity compensation and the like is broken through, thereby having strong capacities of penetrating fog, haze, rain and snow; meanwhile, a waterproof, anti-smoke and anti-moisture sealing structure is adopted, so that the device is suitable for all-weather, high-low temperature (-40-80 ℃) and 24-hour continuous and stable work under various severe conditions;
(3) the utility model discloses each subassembly has been optimized to lighting device simple structure, whole shape are little, realize facula homogenization, keep watch on the distance far away (reach 2km), the scope is big, can not receive external illumination influence (anti highlight), low power dissipation, and low cost, the life-span is longer, and the life-span is greater than or equal to 20000 hours.
Drawings
FIG. 1 is a schematic view of a cross-sectional structure of a micro infrared laser lighting device according to the present invention;
description of reference numerals:
1. the LED module comprises a first shell, a second shell, a laser diode, a heat dissipation block, a heat dissipation blade, a first shell, a second shell, a heat dissipation block, a heat dissipation blade, a second shell, a first lens, a second lens, a third lens and a third lens, wherein the first shell is 2, the laser diode is 3, the heat dissipation block is 4, the heat dissipation blade is 5, the second shell.
Detailed Description
The following description of the embodiments of the present invention is provided in connection with the following embodiments:
it should be noted that the structures, ratios, sizes, etc. illustrated in the present specification are only used to cooperate with the contents disclosed in the specification for the understanding and reading of the people skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, and any modifications of the structures, changes of the ratio relationships or adjustments of the sizes should still fall within the scope that the technical contents disclosed in the present invention can cover without affecting the functions and the achievable purposes of the present invention.
Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Example 1
As shown in fig. 1, a micro infrared laser lighting device includes,
a first housing 1 provided with a cylindrical stepped hole;
the laser diode 2 is arranged in the large aperture of the cylindrical stepped hole;
and the second shell 5 is close to the radiating block 3 and is 5.5mm in outer diameter with the small-aperture inner wall of the cylindrical stepped hole.
The lens subassembly includes first lens 6, second lens 7 and the third lens 8 that sets gradually along the optical axis in second casing 5, and wherein, first lens 6 is biconcave lens, and second lens 7 is biconvex lens, and third lens 8 is meniscus lens, the one end of first lens 6 is close to laser diode 2, and the one end of second lens 7 is connected to the first lens 6 other end, and the concave surface of third lens 8 is connected in the laminating of the second lens 7 other end.
Wherein, the outer diameter of the first lens 6 is 5.5mm, and the wavelength is 800-1100 nm.
The outer diameter of the second lens 7 is 5.5mm, and the wavelength is 800-.
The outer diameter of the third lens 8 is 5.5mm, and the wavelength is 800-.
Example 2
The following differences are provided in addition to the same technical features as in example 1.
As shown in fig. 1, the laser diode heat dissipation device further comprises a heat dissipation assembly, wherein the heat dissipation assembly comprises a heat dissipation block 3 and heat dissipation blades 4, the heat dissipation block 3 is close to the laser diode 2 and is installed in the small aperture of the cylindrical stepped hole, and the heat dissipation blades 4 are installed on the first shell and are close to the outer side of the small aperture end of the cylindrical stepped hole.
And the first casing 1 is provided with heat dissipation holes near the heat dissipation blades 4, and the heat dissipation holes can conduct the heat in the first casing 1 to the heat dissipation blades 4.
The laser diode 2 generates heat during working, and the heat is released in time in order to ensure the normal working performance of the laser diode 2, so that the heat dissipation assembly is arranged.
The utility model discloses miniature infrared laser lighting device is one set of all-weather reliable work, superior facula mode, and according to different monitoring object's characteristics, the customer can select corresponding subassembly system, can satisfy on a large scale, long distance all-weather cooperation high definition camera video monitoring demand in succession.
The utility model discloses adopted the first lens of model BR55072B, the second lens of model BR55101B, the high accuracy of the third lens of model BR55095B respectively to plate the lens group that antireflection coating optical lens constitutes, the laser that the light source produced has fine facula shape after throwing, has very strong ability of penetrating fog, haze, rain, snow; meanwhile, a waterproof, smog-proof and moisture-proof sealing structure is adopted, so that the device is suitable for all-weather and 24-hour continuous and stable work under various severe conditions.
The utility model discloses each subassembly has been optimized to illuminator simple structure, whole shape are little, realize that facula homogenization, monitoring distance are far away (reach 2km long), the scope is big, can not influenced by external illumination (anti highlight), low power dissipation, and low cost, the life-span is longer, and the life-span is greater than or equal to 20000 hours.
The utility model discloses the technique of aspects such as figure correction, homogeneity compensation in laser projection, laser beam's the beam expanding plastic, laser beam light intensity homogenization treatment, red exposure elimination and formation of image has obtained the breakthrough.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (5)
1. A miniature infrared laser lighting device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a first housing provided with a cylindrical stepped hole;
the laser diode is arranged in the large aperture of the cylindrical stepped hole;
the second shell is close to the heat dissipation block and connected with the inner wall of the small aperture of the cylindrical stepped hole, and the central axes of the first shell and the second shell are superposed with the optical axis of the laser diode;
the lens assembly comprises a first lens, a second lens and a third lens which are sequentially arranged in the second shell along an optical axis, wherein the first lens is a biconcave lens, the second lens is a biconvex lens, the third lens is a concave-convex lens, one end of the first lens is close to the laser diode, the other end of the first lens is connected with one end of the second lens, and the other end of the second lens is attached to a concave surface of the third lens.
2. The micro infrared laser lighting device according to claim 1, wherein: still include radiator unit, radiator unit includes radiating block and radiator blade, the radiating block is close to laser diode and installs in the aperture of cylinder shoulder hole, and radiator blade installs on first casing and is close to the outside of the aperture end of cylinder shoulder hole.
3. The micro infrared laser lighting device according to claim 2, wherein: the first shell is provided with heat dissipation holes close to the heat dissipation blades.
4. A miniature infrared laser illumination device as set forth in any of claims 1-3, wherein: the outer diameters of the first lens, the second lens and the third lens are all 5.5mm, and the wavelengths are all 800-1100 nm.
5. A miniature infrared laser illuminator of any of claims 1-3, wherein: the lighting device adopts a waterproof, smog-proof and moisture-proof sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922147710.8U CN210864215U (en) | 2019-12-04 | 2019-12-04 | Miniature infrared laser lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922147710.8U CN210864215U (en) | 2019-12-04 | 2019-12-04 | Miniature infrared laser lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210864215U true CN210864215U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922147710.8U Active CN210864215U (en) | 2019-12-04 | 2019-12-04 | Miniature infrared laser lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210864215U (en) |
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2019
- 2019-12-04 CN CN201922147710.8U patent/CN210864215U/en active Active
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