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Laser dot matrix instrument

A laser lattice and laser technology is applied in the field of laser lattice instruments to achieve the effects of high control precision and simple structure

Active Publication Date: 2012-05-09
BEIJING INST OF CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the special application field of the laser dot matrix instrument, there are no relevant reports at home and abroad.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] Such as Figure 4 As shown, the main body of array prism array 3 is composed of 11 trapezoidal dichroic prisms of different shapes. Except for the first trapezoidal dichroic prism and the last trapezoidal dichroic prism, 9 kinds of spectroscopic films of different specifications are coated on the remaining prisms respectively. Then glued to form the main body of the array prism. In order to control the direction of the light beam, 8 steering prisms are attached to the corresponding positions of the trapezoidal dichroic prism and glued together, and the middle position does not need a steering prism because it is emitted vertically from the upper surface of the dichroic prism. The hypotenuse of each steering prism is coated with anti-reflection coating, and the semi-reflective and semi-transparent coating is coated between the dichroic prisms to ensure that the light power of the nine beams emitted by the 8 steering prisms and the diagnosis and treatment prisms are consi...

Embodiment 2

[0025] Such as Figure 5 As shown, the main body of the array prism array 3 is composed of 10 trapezoidal dichroic prisms of different shapes. Except for the first trapezoidal dichroic prism and the last trapezoidal dichroic prism, 8 kinds of spectroscopic films of different specifications are coated on the remaining prisms. Then glued to form the main body of the array prism. In order to control the direction of the light beam, 8 steering prisms are attached to the corresponding positions of the trapezoidal dichroic prism and glued together. The hypotenuse of each steering prism is coated with anti-reflection coating, and the semi-reflective and semi-transparent coating is coated between the dichroic prisms to ensure the optical power of eight beams.

[0026] The design of the spectroscopic film of the spectroscopic prism is the same as the design idea in Example 1. It is necessary to correct the design of the subsequent spectroscopic film according to the Ri value of the ac...

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Abstract

The invention relates to a laser dot matrix instrument which comprises a laser diode, a collimator, an array prism and a right angle prism, wherein the array prism comprises a strip-shaped prism and a plurality of direction adjusting prisms installed on the strip-shaped prism. A main array body of the strip-shaped prism comprises a plurality of trapezoid dispersion prisms with different shapes, the corresponding prism is respectively plated with a semi-reflection and semi-permeable membrane, and then the prism is glued with the membrane by optical cement, so that the incident laser can be transmitted and reflected on a reflection surface of the strip-shaped prism, the direction of the laser reflected by the reflection surface can be adjusted by the different direction adjusting prisms, and laser along different directions can be generated to form laser dot matrix. According to the optical signals obtained by actual measurement, the laser dot matrix instrument can be used for adjustingthe transmitted light beam, so as to ensure the light intensity of light beams along different directions to be consistent as much as possible. The laser dot matrix instrument has simple structure and high control accuracy, and can provide target identification for a front obstacle avoidance camera of a lunar surface inspection device.

Description

technical field [0001] The invention relates to a laser dot matrix instrument, which is mainly installed on a lunar surface patrol device for target identification. Background technique [0002] The laser dot matrix instrument is mainly installed in the lunar surface patrol device for lunar exploration, and can provide multi-channel laser dot matrix to provide target identification for the APS front obstacle avoidance camera, and the laser dot matrix instrument provides features for the front obstacle avoidance camera of the lunar surface patrol. This point is of great significance to future deep space exploration landers. Due to the limited resources of the lunar surface patrol platform and the harsh lunar environment, strict requirements have been placed on the power consumption, volume, weight, high and low temperature resistance, and radiation resistance of the laser dot matrix instrument. Moreover, the beam quality of the laser dot matrix instrument affects the measure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/481G01S17/02G02B5/04G02B1/00
Inventor 刘晓军孙建波龚德铸伍浩成覃波
Owner BEIJING INST OF CONTROL ENG