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Movable zooming device for laser generator

A laser generator and laser technology, applied in the directions of lasers, phonon exciters, laser parts, etc., can solve the problems of exceeding the field of view, small illumination angle, and excessive illumination angle, achieving low cost, simple implementation, and volume. small effect

Inactive Publication Date: 2007-10-10
潘国平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the lighting angle is fixed, it is easy to cause the lighting angle to be too large when the camera lens is long-focus, exceeding the field of view, and the target illumination is not enough; and when the camera lens is short-focus, the lighting angle is too small to fill the field of view

Method used

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  • Movable zooming device for laser generator
  • Movable zooming device for laser generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] As shown in Figure 1, the beam emitted by the semiconductor laser 1 is usually about 10° (horizontal) × 40° (vertical). Through the shaping optical device 2, the horizontal and vertical divergence angles are adjusted to be basically the same (required angle). The reshaped light beam 3 is angle-compressed by the lens device 4 , and emerges as the outgoing light beam 5 , the angle of the outgoing light is related to the distance L, and L is the distance between the light source S and the lens device 4 . The motor 6 converts the rotary motion into a linear motion through the mechanical transmission device 7, drives the semiconductor laser 1 to move back and forth, and adjusts the distance L, thereby controlling the outgoing angle of the outgoing beam 5. During the movement of the above device, it is always ensured that the light source S is located on the optical axis of the lens device 4, and the entire optical system is coaxial.

[0019] The lens device 4 is a single len...

Embodiment 2

[0021] As shown in Figure 2, the beam emitted by the semiconductor laser 1 is usually about 10° (horizontal) × 40° (vertical). Through the shaping optical device 2, the horizontal and vertical divergence angles are adjusted to be basically the same (required angle). The reshaped light beam 3 is angle-compressed by the lens device 4 , and emerges as the outgoing light beam 5 , the angle of the outgoing light is related to the distance L, and L is the distance between the light source S and the lens device 4 . The motor 6 converts the rotational motion into a linear motion through the mechanical transmission device 7, drives the semiconductor laser 1 and the lens device 4 to move horizontally relative to each other, and adjusts the distance L, thereby controlling the outgoing angle of the outgoing beam 5. During the movement of the above device, it is always ensured that the light source S is located on the optical axis of the lens device 4, and the entire optical system is coaxi...

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Abstract

A mobile varifocus device of a laser generator is prepared for setting the shaping optical unit and lens unit in sequence a same level position on front end of semiconductor laser and making shaped optical source be on optical axis of lens unit.

Description

technical field [0001] The invention relates to a laser generator, in particular to a moving and zooming device of the laser generator used in the security field. technical background [0002] At present, laser generators are used as lighting devices on the market, and the laser emission angle is generally fixed. Even if a certain adjustment range is reserved in advance, the adjustment range is relatively small, and most of them are manually adjusted. Well, it is completely fixed, which is more suitable for applications in fixed-distance lighting applications. [0003] When it needs to be applied to occasions with relatively large distances at the same time, it is difficult to meet the requirements for the above-mentioned fixed-angle lighting. Because the target needs to be enlarged at a long distance, the camera lens is changed to a telephoto lens, and the field of view is small, and the illumination angle is required to be relatively small in order to have sufficient illu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K7/00H01S3/00F21V14/00F21V5/04F21K99/00F21K9/20F21V14/02F21V14/06F21Y115/30
Inventor 潘国平吴克云
Owner 潘国平
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