Mechanism for adjusting beam divergence angle and energy of laser

A laser beam and energy technology, applied in the direction of optics, optical components, instruments, etc., can solve the problems of damage to the distance measuring equipment, restrict the distance measurement range and measurement accuracy of the distance measurement equipment, and cannot meet the requirements of accurate distance measurement, etc., to achieve reliable High reliability, meet the precise requirements of long-distance ranging, light weight effect

Active Publication Date: 2017-06-20
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Problems solved by technology

In the prior art, the fixed laser pulse energy and beam divergence angle can be used to accurately measure the distance target, but when the target is close, the fixed laser pulse energy and beam divergence angle will not be able to meet the requirements of accurate ranging, and It is easy to cause damage to the distance measuring equipment
Therefore, current technology restricts the ranging range and measurement accuracy of existing ranging equipment

Method used

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  • Mechanism for adjusting beam divergence angle and energy of laser
  • Mechanism for adjusting beam divergence angle and energy of laser
  • Mechanism for adjusting beam divergence angle and energy of laser

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0020] This patent discloses a mechanism for adjusting the divergence and energy of the laser beam, such as figure 1 As shown, it includes: a laser 1, a first deflection mechanism 201, a second deflection mechanism 202, a first fixed mirror group 301, and a second fixed mirror group 302, wherein the laser 1, the first fixed mirror group 301 and The second fixed mirror group 302 is in the laser transmission optical path to realize the first way to change the beam divergence angle of the laser; the first deflection mechanism 201 can cut two mirror groups into the laser transmission optical path to realize the laser transmission The divergence angle of the laser beam can be changed in the second way; the second deflection mechanism 202 can cut the two lens groups into the laser transm...

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Abstract

The invention discloses a mechanism for adjusting beam divergence angle and energy of laser. The mechanism comprises a laser device (1), a first deflection mechanism (201), a second deflection mechanism (202), a first fixed lens set (301) and a second fixed lens set (302), wherein the laser device (1), the first fixed lens set (301) and the second fixed lens set (302) are in a laser transmission optical path. The first deflection mechanism (201) can arrange the two lens sets into the laser transmission optical path, thereby realizing a second-manner change of the beam divergence angle of the laser. The second deflection mechanism (202) can arrange the two lens sets into the laser transmission optical path again, thereby realizing a third-manner change of the beam divergence angle of the laser. The mechanism can adjust the beam divergence angle and energy of the laser and performs functions of settling a problem of accurately measuring a distance to a moving object and remarkably improves distance measurement precision and distance measurement range of distance measurement equipment. Furthermore the mechanism has advantages of small size, small weight and high reliability.

Description

Technical field [0001] The invention belongs to the technical field of laser distance measurement, and more specifically, relates to a mechanism for adjusting the divergence and energy of a laser beam. Background technique [0002] The development of laser ranging technology has been continuously developed with the development of laser technology, power electronics technology and computer technology. It has experienced the first generation of ruby ​​laser rangefinder, the second generation of Nd:YAG laser rangefinder and is currently being developed and developed. Three development stages of the third-generation solid-state laser rangefinder and carbon dioxide laser rangefinder that have been gradually promoted. [0003] At present, laser ranging technologies all use fixed laser pulse energy and beam divergence to range targets, and there is no related technology that uses transforming laser pulse energy and beam divergence to range targets. In the prior art, the use of fixed lase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/08G02B26/02
CPCG02B26/023G02B26/08
Inventor 张逸民马建宏崔丽
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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