CN210181362U

CN210181362U - Zooming laser lighting adjusting device and laser lighting lens thereof

Info

Publication number: CN210181362U
Application number: CN201921336667.3U
Authority: CN
Inventors: Guan Li; 李关; Juxia Liu; 刘菊霞; Dong Zhang; 张冬; Zhiwei Lu; 陆知纬
Original assignee: SHENZHEN JIDADE TECHNOLOGY Co Ltd
Current assignee: SHENZHEN JIDADE TECHNOLOGY Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-03-24
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a laser illumination adjusting device zooms and laser lighting camera lens thereof, adjusting device includes: the zoom lens assembly comprises a compensation positive lens group, a zoom negative lens group and a fixed positive lens group which are sequentially arranged; the zoom multiple of lens subassembly is adjusted through adjusting part to this application to compromise the demand of multiple angle laser illumination simultaneously.

Description

Zooming laser lighting adjusting device and laser lighting lens thereof

Technical Field

The utility model relates to a laser lighting field, more specifically say, it relates to a laser illumination adjusting device zooms and laser lighting camera lens thereof.

Background

With the development of infrared illumination night vision technology, variable-focus infrared laser illumination lamps have been widely applied in security and monitoring industries. The infrared laser illuminating lamp is matched with the infrared camera or the low-light-level night vision device to form a night vision monitoring system, and the infrared laser illuminating lamp is used as a night vision light supplementing light source of the camera device, so that the night vision monitoring system can continuously work for 24 hours. The infrared laser illuminating lamp has the advantages of long effective illumination distance, long service life and high concealment. Therefore, infrared laser illumination lamps are gradually replacing LED infrared lamps.

However, the current products on the market generally have small zooming ratio, and can not simultaneously give consideration to small-angle and large-angle light supplement illumination, and meanwhile, due to the scattering of laser light and other reasons, the problem of uneven light spots of the infrared laser illuminating lamp is caused.

Therefore, the prior art still needs to be improved and developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough among the prior art, provide a laser illumination adjusting device zooms and laser lighting camera lens thereof, reach the purpose that the multiple is big and compromise multiple angle laser illumination's demand simultaneously.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a zooming laser lighting adjusting device comprises a shell, a laser emitter arranged in the shell, a zooming lens assembly and an adjusting assembly used for adjusting zooming times of the zooming lens assembly, wherein the zooming lens assembly comprises a compensation positive lens assembly, a zooming negative lens assembly and a fixed positive lens assembly which are sequentially arranged.

The zoom laser lighting adjusting device comprises a zoom lens assembly, a driving assembly and a control assembly, wherein the zoom lens assembly is arranged on the adjusting assembly, the driving assembly is used for driving the driving assembly to move, and the control assembly is arranged on the adjusting assembly and is used for controlling the zoom lens assembly to zoom in and out.

The zoom laser lighting adjusting device comprises a support, a spiral sleeve assembly and a laser lighting adjusting device, wherein the spiral sleeve assembly comprises an outer sleeve rotatably connected to the support and an inner sleeve arranged between the outer sleeve and the zoom lens assembly; the positive compensation lens group is connected to the spiral sleeve assembly through a compensation group connecting piece, the negative variable-power lens group is connected to the spiral sleeve assembly through a variable-power group connecting piece, and the positive fixed lens group is arranged at the front end of the spiral sleeve assembly.

The zoom laser lighting adjusting device is characterized in that a linear track is arranged on the inner sleeve, an annular track and a spiral track are arranged on the outer sleeve, the compensation group connecting piece penetrates through the linear track to be connected with the annular track, and the zooming group connecting piece penetrates through the linear track to be connected with the spiral track.

The zoom laser lighting adjusting device is characterized in that the linear track is a linear sliding groove arranged along the length direction of the inner sleeve, and the compensation group connecting piece and the zoom group connecting piece are both connected to the linear sliding groove in a sliding manner; the annular track is for setting up annular spout on the outer tube, compensation group connecting piece sliding connection in annular spout, the spiral track is for setting up spiral spout on the outer tube, the spiral spout sets up the front end of annular spout, become doubly group connecting piece sliding connection in spiral spout.

The laser lighting adjusting device zooms, wherein, drive assembly is including setting up motor on the casing, connect in the driving gear of motor and setting are in on the outer tube and with the driven gear of driving gear adaptation.

The zoom laser illumination adjusting device comprises a compensation positive lens group, a first compensation positive lens and a second compensation positive lens, wherein the compensation positive lens group comprises a compensation group fixing seat, the first compensation positive lens is connected with the second compensation positive lens through a compensation group gasket, and the first compensation positive lens is fixed with the second compensation positive lens through a compensation group locking nut.

The zoom laser lighting adjusting device comprises a fixed positive lens group, a fixed group fixing seat, a first fixed positive lens and a second fixed positive lens, wherein the first fixed positive lens is connected with the second fixed positive lens through a fixed group gasket, and the first fixed positive lens and the second fixed positive lens are fixed through a fixed group locking nut; one of the first fixed positive lens and the second fixed positive lens is provided as a cemented lens.

The zooming laser lighting adjusting device is characterized in that the zooming negative lens group comprises a zooming group fixing seat, a first negative lens arranged on the zooming group fixing seat and a zooming group locking nut used for fixing the first negative lens.

A laser lighting lens comprising a zoom laser lighting adjustment apparatus as described in any one of the above.

To sum up, the utility model discloses following beneficial effect has:

the utility model discloses an adjusting part adjustment zoom the multiple of lens subassembly, through the positive lens group of the different compensation of removal orbit simultaneously and the negative lens group of zoom to compromise multiple angle laser lighting's demand simultaneously, and guarantee that the laser facula is even when realizing zooming on a large scale, compact structure and practiced thrift the cost.

Drawings

Fig. 1 is a sectional view of the entire internal structure of the present embodiment.

Fig. 2 is an overall external structural schematic diagram of the present embodiment.

Fig. 3 is an optical schematic diagram of the zoom lens assembly at the minimum light-emitting angle in the present embodiment.

Fig. 4 is an optical schematic diagram of the zoom lens assembly at the maximum light-emitting angle in the present embodiment.

In the figure: 1. a housing; 2. a laser transmitter; 21. an optical fiber; 3. a variable focus lens assembly; 31. a compensation positive lens group; 311. a compensation group connection member; 312. a compensation group fixing seat; 313. a first compensating positive lens; 314. a second compensating positive lens; 315. a compensating group gasket; 316. a compensation group locking nut; 32. a zoom negative lens group; 321. a zoom group connecting piece; 322. a zoom group fixing seat; 323. a first negative lens; 324. the zoom group locking nut; 33. fixing the positive lens group; 331. a fixed group fixing seat; 332. a first fixed positive lens; 333. a second fixed positive lens; 334. a fixed set of washers; 335. fixing the locking nut; 4. an adjustment assembly; 41. a support; 42. a helical sleeve assembly; 421. an outer sleeve; 4211. an annular chute; 4212. a spiral chute; 422. an inner sleeve; 4221. a linear chute; 43. a drive assembly; 431. a motor; 432. a driving gear; 433. a driven gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example (b): a zoom laser lighting adjusting device is shown in fig. 1 and 2 and comprises a shell 1, a laser emitter 2, a zoom lens component 3 and an adjusting component 4. The laser emitter 2 is arranged in the shell 1, the laser emitter 2 comprises an optical fiber 21, the adjusting component 4 is used for adjusting the zooming multiple of the zooming lens component 3, and the zooming lens component 3 comprises a compensation positive lens group 31, a zooming negative lens group 32 and a fixed positive lens group 33 which are sequentially arranged.

The adjustment assembly 4 includes a support 41, a threaded sleeve assembly 42, and a drive assembly 43. The screw sleeve assembly 42 is disposed on the support 41, and the driving assembly 43 is configured to drive the screw sleeve assembly 42 to move, so as to adjust the zoom magnification of the variable focus lens package 3 through the screw sleeve assembly 42.

The spiral sleeve assembly 42 comprises an outer sleeve 421 and an inner sleeve 422, the outer sleeve 421 is rotatably connected to the support, and the inner sleeve 422 is disposed between the outer sleeve 421 and the variable focus lens assembly 3. The compensation positive lens assembly 31 is connected to the spiral sleeve assembly 42 through a compensation assembly connector 311, the variable magnification negative lens assembly 32 is connected to the spiral sleeve assembly 42 through a variable magnification assembly connector 321, and the fixed positive lens assembly 33 is disposed at the front end of the spiral sleeve assembly 42.

The side wall of the inner sleeve 422 is provided with a linear track, the side wall of the outer sleeve 421 is provided with an annular track and a spiral track, the compensation group connecting piece 311 penetrates through the linear track to be connected to the annular track, and the zooming group connecting piece 321 penetrates through the linear track to be connected to the spiral track.

Specifically, the linear track is a linear sliding groove 4221 arranged along the length direction of the inner sleeve 422, and the compensation group connecting piece 311 and the zoom group connecting piece 321 are both connected to the linear sliding groove 4221 in a sliding manner. The annular track is an annular sliding groove 4211 arranged on the outer sleeve 421, the compensation group connecting piece 311 is connected to the annular sliding groove 4211 in a sliding manner, the spiral track is a spiral sliding groove 4212 arranged on the outer sleeve 421, the spiral sliding groove 4212 is arranged at the front end of the annular sliding groove 4211, and the variable-magnification group connecting piece 321 is connected to the spiral sliding groove 4212 in a sliding manner.

The driving assembly 43 includes a motor 431 disposed on the housing 1, a driving gear 432 connected to the motor 431, and a driven gear 433 disposed on the outer sleeve 421 and adapted to the driving gear 432. The motor 431 drives the driving gear 432 to rotate, and the driving gear 432 is meshed with the driven gear 433, so that the driven gear 433 is driven to rotate, and the outer sleeve 421 is driven to rotate.

The compensation positive lens group 31 includes a compensation group fixing base 312, a first compensation positive lens 313 and a second compensation positive lens 314, the first compensation positive lens 313 and the second compensation positive lens 314 are connected through a compensation group gasket 315, and the first compensation positive lens 313 and the second compensation positive lens 314 are fixed through a compensation group locking nut 316.

The variable magnification negative lens group 32 includes a variable magnification group fixing base 322, a first negative lens 323 arranged on the variable magnification group fixing base 322, and a variable magnification group locking nut 324 for fixing the first negative lens 323.

Specifically, the thickness of each of the first compensating positive lens 313, the second compensating positive lens 314, and the first negative lens 323 is less than 4 mm, and the diameter thereof is less than 8 mm. The present application is to facilitate the driving of the motor 431 by reducing the weight of the lens group, and to facilitate the zooming by the forward and backward movement of the compensation positive lens group 31 and the zooming negative lens group 32.

The fixed positive lens group 33 includes a fixed group fixing base 331, a first fixed positive lens 332 and a second fixed positive lens 333, the first fixed positive lens 332 and the second fixed positive lens 333 are connected by a fixed group washer 334, and the first fixed positive lens 332 and the second fixed positive lens 333 are fixed by a fixed group locking nut 335; one of the first fixed positive lens 332 and the second fixed positive lens 333 is provided as a cemented mirror.

In other embodiments, the fixed positive lens group may further include a third fixed positive lens, the first fixed positive lens, the second fixed positive lens and the third fixed positive lens are arranged in parallel, and each fixed positive lens is connected to each other through a fixed group of gaskets.

During assembly, the compensation positive lens group 31 and the zooming negative lens group 32 are assembled in the inner sleeve 422 according to the specified direction of the optical path, then the outer sleeve 421 is assembled outside the inner sleeve 422, and then the compensation positive lens group 31 and the zooming negative lens group 32 are fixed through the compensation group locking nut 316 and the zooming group locking nut 324 respectively. Because the outer sleeve 421 adopts a curved track and the inner sleeve 422 adopts a linear track, when the motor 431 is powered on, the battery drives the outer sleeve 421 to rotate through gear transmission, so as to push the compensation positive lens group 31 and the zooming negative lens group 32 to move on the linear track of the inner sleeve 422, and the function of moving and zooming is realized.

The working principle is as follows:

referring to fig. 3 and 4, after power-on, the compensation positive lens group 31 and the zooming negative lens group 32 are located at the extreme positions close to the end of the optical fiber 21, and at this time, the laser angle is the smallest, which may be as low as 0.3 degrees. The light beam is emitted from the end face of the optical fiber 21 and then passes through the compensation positive lens group 31, the compensation positive lens group 31 focuses light, and the focal point of the light is defined as a first image surface. At this time, no focus is formed in the optical path, and after the light beam is focused by the compensation positive lens group 31, the exit angle becomes small, and the light beam enters the magnification-varying negative lens group 32.

After that, the compensation positive lens group 31 moves towards the fixed positive lens group 33 first, and then moves away from the fixed positive lens group 33, and the zooming negative lens group 32 always moves towards the fixed positive lens group 33, wherein the moving amplitude of the compensation positive lens group 31 is smaller than that of the zooming negative lens group 32. And, the compensation positive lens group 31 moves simultaneously with the magnification-varying negative lens group 32 while stopping. After the variable-power negative lens group 32 moves for a certain distance, the first image surface appears, the variable-power negative lens group 32 completes the uniform amplification of the image surface, the compensation positive lens group 31 changes the position of the first image surface through moving back and forth, and changes the size of the light beam entering the variable-power negative lens group 32, so that the compensation of the image surface is realized.

When the zooming negative lens group 32 moves to a position closest to the fixed positive lens group 33, the zooming negative lens group 32 is located between the first image plane and the fixed lens group, and the distance between the first image plane and the compensation positive lens group 31 is smaller than the distance between the first image plane and the zooming negative lens group 32, so that the angle of the light beam entering the zooming negative lens group 32 is increased, the zooming negative lens group 32 is favorable for further diffusing the light beam, and large-angle illumination is realized. At the moment, the angle of the laser lighting lens is maximum and can reach 50 degrees.

From the above, since the zooming negative lens group 32 has a diffusing effect on the light beam, after passing through the compensation positive lens group 31 and the zooming negative lens group 32, the central light intensity of the light spot is diffused, the light intensity distribution is uniform, and the laser is collimated and emitted through the fixed positive lens group 33. The aperture of the zooming negative lens group 32 is further reduced due to the focusing action of the compensating positive lens group 31 on the light beam.

In other embodiments, the driving assembly is not limited to the control manner of combining the spiral sleeve assembly with the driving assembly, and other driving manners may also be adopted, for example, a manner of combining a common sleeve with a guide rod is adopted, and the movement of the compensation positive lens group and the movement of the zoom negative lens group are respectively controlled by two sets of motors and the hall sensing assembly.

The utility model also provides a laser lighting camera lens, wherein, including zooming laser lighting adjusting device, specifically as above.

Specifically, the laser lighting lens of this application is still including setting up hall response subassembly, external control subassembly and controller in the casing, the external control subassembly includes external control keyboard, external control keyboard includes the on & off control button, zooms the control button automatically, zooms the control button manually, electric current increase control button and electric current reduce the control button, the simple operation. The controller can adopt any control element capable of realizing the functions of the application, such as a PLC (programmable logic controller) or a singlechip.

The hall sensing assembly is used for sensing the position of the zoom lens assembly 3, and the controller controls the driving assembly 43 to rotate the spiral sleeve assembly 42 through a program, so as to drive the compensation positive lens group 31 and the zooming negative lens group 32 in the spiral sleeve assembly 42 to move, thereby realizing the zoom function. During zooming, the hall sensor assembly senses the position, and the motor 431 is controlled by the control program of the controller to rotate the spiral sleeve assembly 42, so that the zoom lens assembly 3 in the spiral sleeve assembly 42 moves.

To sum up, this application is adjusted through adjusting part the multiple of zooming of lens subassembly zooms, through the positive lens group of the different compensation of removal orbit simultaneously and the negative lens group of zoom to compromise multiple angle laser lighting's demand simultaneously, and guarantee that the laser facula is even when realizing zooming on a large scale. In addition, the lens group with two different tracks can be moved simultaneously through the group of Hall sensing assemblies and the driving assembly, the structure is compact, and the cost is saved.

It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. A zooming laser lighting adjusting device is characterized in that: the zoom lens assembly comprises a shell, a laser emitter, a zoom lens assembly and an adjusting assembly, wherein the laser emitter, the zoom lens assembly and the adjusting assembly are arranged in the shell, the adjusting assembly is used for adjusting the zoom multiple of the zoom lens assembly, and the zoom lens assembly comprises a compensation positive lens assembly, a zoom negative lens assembly and a fixed positive lens assembly which are sequentially arranged.

2. The variable focus laser lighting adjustment apparatus according to claim 1, wherein: the adjusting assembly comprises a support, a spiral sleeve assembly and a driving assembly, wherein the spiral sleeve assembly is arranged on the support and is used for adjusting the zooming multiple of the zooming lens assembly, and the driving assembly is used for driving the spiral sleeve assembly to move.

3. The variable focus laser lighting adjustment apparatus according to claim 2, wherein: the spiral sleeve component comprises an outer sleeve rotatably connected to the support and an inner sleeve arranged between the outer sleeve and the zoom lens component; the positive compensation lens group is connected to the spiral sleeve assembly through a compensation group connecting piece, the negative variable-power lens group is connected to the spiral sleeve assembly through a variable-power group connecting piece, and the positive fixed lens group is arranged at the front end of the spiral sleeve assembly.

4. The variable focus laser lighting adjustment apparatus according to claim 3, wherein: the compensation group connecting piece penetrates through the linear track to be connected with the annular track, and the zooming group connecting piece penetrates through the linear track to be connected with the spiral track.

5. The variable focus laser lighting adjustment apparatus according to claim 4, wherein: the linear track is a linear sliding chute arranged along the length direction of the inner sleeve, and the compensation group connecting piece and the zooming group connecting piece are both connected to the linear sliding chute in a sliding manner; the annular track is for setting up annular spout on the outer tube, compensation group connecting piece sliding connection in annular spout, the spiral track is for setting up spiral spout on the outer tube, the spiral spout sets up the front end of annular spout, become doubly group connecting piece sliding connection in spiral spout.

6. The variable focus laser lighting adjustment apparatus according to claim 4, wherein: the drive assembly comprises a motor arranged on the shell, a driving gear connected to the motor and a driven gear arranged on the outer sleeve and matched with the driving gear.

7. The variable focus laser lighting adjustment apparatus according to claim 3, wherein: the positive lens group of compensation includes compensation group fixing base, first compensation positive lens and the positive lens of second compensation, first compensation positive lens with connect through compensation group gasket between the positive lens of second compensation, just first compensation positive lens with the positive lens of second compensation is fixed through compensation group lock nut.

8. The variable focus laser lighting adjustment apparatus according to claim 3, wherein: the fixed positive lens group comprises a fixed group fixing seat, a first fixed positive lens and a second fixed positive lens, the first fixed positive lens is connected with the second fixed positive lens through a fixed group gasket, and the first fixed positive lens and the second fixed positive lens are fixed through a fixed group locking nut; one of the first fixed positive lens and the second fixed positive lens is provided as a cemented lens.

9. The variable focus laser lighting adjustment apparatus according to claim 3, wherein: the zooming negative lens group comprises a zooming group fixing seat, a first negative lens arranged on the zooming group fixing seat and a zooming group locking nut used for fixing the first negative lens.

10. A laser lighting lens is characterized in that: comprising a variable focus laser lighting adjustment device according to any one of claims 1-9.