Device for achieving laser space scanning

A space scanning and laser technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of increasing the cost of laser scanner or laser radar system, not conducive to system integration, increasing system volume, etc.

Inactive Publication Date: 2017-12-15
中恩光电科技(苏州)有限公司
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  • Abstract
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Problems solved by technology

This solution requires one or more stepper motors. In order to achieve high-precision laser scanning, the stepper motors need to have high stepping accuracy and stable rotation, which increases the cost of laser scanners or laser radar systems.
On the other hand, the stepper motor also increases the volume of the system, which is not conducive to system integration

Method used

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  • Device for achieving laser space scanning

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Embodiment Construction

[0015] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0016] See attached figure 1 As shown, a device for realizing laser spatial scanning in this embodiment includes a laser 1 arranged in sequence for emitting laser light, a laser beam expanding element for expanding the laser beam, and a laser beam expanding element for directing the laser beam in a specific direction to The polarizing element 4 for polarized light output and the liquid crystal element 5 for controlling the laser on and off, the liquid crystal element 5 includes an upper protective glass plate and a lower protective glass plate arranged in parallel, and the upper protective glass plate includes Alignment layer and conductive elect...

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Abstract

The invention discloses a device for achieving laser space scanning. The device comprises a laser device, a laser beam expanding element, a polarization element and a liquid crystal element, a laser beam emitted by the laser is subjected to beam expanding through the laser beam expanding element, polarization output of light in a specific direction is achieved through the polarization element, and the liquid crystal element controls lasers to be turned on and off, so that continuous scanning of the output lasers in the spatial range is achieved. By using the liquid crystal element, the on-off state of the lasers can be controlled so that continuous scanning of the output lasers in the spatial range can be achieved, a stepping motor is omitted, the cost of a laser radar system can be reduced, and integration of a system is facilitated.

Description

technical field [0001] The invention relates to the field of laser radar equipment, in particular to a device for realizing laser space scanning. Background technique [0002] Laser space scanning technology is the core technology of laser space measurement and target tracking. The accuracy and speed of spatial scanning control directly determine the resolution and measurement frequency of laser measurement. [0003] At present, the technology to realize laser space scanning generally uses a motor to drive a laser or a mirror to realize continuous change of direction of the laser beam in the horizontal and vertical directions. This solution requires one or more stepping motors. In order to achieve high-precision laser scanning, the stepping motors need to have high stepping accuracy and stable rotation, which increases the cost of the laser scanner or laser radar system. On the other hand, the stepper motor also increases the volume of the system, which is not conducive to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02B27/28
Inventor 许志超
Owner 中恩光电科技(苏州)有限公司
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