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A laser illuminator for underwater range-gated imaging

A laser lighting and laser technology, applied in the field of laser illuminators, can solve problems such as no mature products, and achieve the effects of compact structure, high power stability and high stability

Active Publication Date: 2018-09-28
长春德信光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic universities and research institutes have conducted research on underwater range gating detection and imaging technology, but no mature products have been seen

Method used

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  • A laser illuminator for underwater range-gated imaging
  • A laser illuminator for underwater range-gated imaging
  • A laser illuminator for underwater range-gated imaging

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Embodiment Construction

[0034] As shown in the figure, a laser illuminator for underwater range gating detection and imaging is coordinated and connected with underwater range gating detection and imaging equipment. device 3 and illumination optics 4,

[0035] The laser light source 2 is an all-solid-state laser, including a concave mirror 201, a plane mirror 202, a semiconductor laser diode array 203, a neodymium-doped yttrium aluminum garnet Nd:YAG crystal 204, a potassium titanyl phosphate KTP crystal 205, an electro-optic Q switch 206, and an electro-optic Q switch 206. Switch driver 207; the concave mirror 201 is coated with a high reflection film; the plane mirror 202 is coated with a 90% reflectivity film, and the plane mirror 202 and the concave mirror 201 form a concave-flat resonant cavity; the concave-flat resonant cavity is provided with Semiconductor laser diode array 203, neodymium-doped yttrium aluminum garnet Nd:YAG crystal 204 and electro-optic Q switch 206; the semiconductor laser d...

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Abstract

The invention relates to a laser illuminator used for underwater distance gating detection imaging, and belongs to the technical field of laser illuminators. The laser illuminator comprises a laser illumination drier, a laser device light source, a TEC semiconductor cooler and an illuminating optical system. The laser illuminator can transmit data with an underwater distance gating detection imaging device, is used for illuminating the underwater distance gating detection imaging device, and has the characteristics of compact structure, small size, long life, high stability and wide working temperature range. The laser device light source adopts a pulse solid laser device, the wavelength of the light source is 532nm with low underwater absorption efficiency, and targets 5-100m lower than the water level can be illuminated by using a Q switching technology. The illuminating optical system has a zooming function, and allows the divergence angle of the illumination laser to be continuously adjustable in a range of 15-60DEG in order to make the laser illuminator be flexible in the underwater distance gating detection imaging application. The TEC semiconductor cooler can adjust the temperature of the laser device light source to guarantee the working stability.

Description

technical field [0001] The invention belongs to the technical field of laser illuminators, in particular to a laser illuminator for underwater range gating detection and imaging. Background technique [0002] Our country has a territorial sea of ​​3 million square kilometers, and deep-sea exploration is of great significance to our country's national economy and scientific development. On February 26, 2016, the 19th meeting of the Standing Committee of the Twelfth National People's Congress passed the "Law of the People's Republic of China on the Exploration and Development of Deep-sea Submarine Area Resources", which aims to regulate the exploration and development of resources in the deep-sea subsea area and promote the development of deep-sea resources. Scientific and technological research, resource investigation, protection of the marine environment, and promotion of sustainable utilization of resources in the deep seabed area provide an important legal basis for my coun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C13/00
CPCG01C13/00Y02A90/30
Inventor 张辰张巍董洪斌解明杨波马大伟孙婷婷
Owner 长春德信光电技术有限公司
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