An underwater laser synchronous field scanning imaging device and method

A technology of scanning imaging and underwater laser, which is applied in image communication, TV, color TV parts, etc., can solve the problem of large influence of underwater imaging backscattering, achieve simplified optical path design, improve optical detection distance, and laser The effect of power increase

Active Publication Date: 2022-08-02
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0005] The invention provides an underwater laser synchronous field scanning imaging device and method, which solves the problem that backscattering has a great influence on underwater imaging in the prior art

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  • An underwater laser synchronous field scanning imaging device and method
  • An underwater laser synchronous field scanning imaging device and method
  • An underwater laser synchronous field scanning imaging device and method

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[0031] It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0032] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the prese...

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Abstract

The present invention provides an underwater laser synchronous field scanning imaging device and method, and relates to the technical field of imaging equipment. It is a laser synchronous field scanning light source, including a semiconductor laser and a one-dimensional scanning galvanometer, the semiconductor laser is a linear laser, the semiconductor laser outputs a linear laser, and the linear laser is reflected by the one-dimensional scanning galvanometer to In the field of view of the imaging unit, the one-dimensional scanning galvanometer swings one-dimensionally, scans the entire field of view of the imaging unit, and realizes synchronous scanning illumination of the entire field of view of the imaging unit. The invention uses the galvanometer as the scanning device of the synchronous light source, and has the advantages of simple optical structure, fast scanning speed, controllable scanning angle, and energy utilization rate compared with the implementation of the linear laser array, the spatial light modulator and the uniformly rotating mirror. high advantage.

Description

technical field [0001] The invention relates to the technical field of imaging equipment, in particular to an underwater laser synchronous field scanning imaging device and method. Background technique [0002] Due to the nature of water molecules and the presence of a large number of impurities in natural water bodies, the clarity of underwater images is greatly affected by scattered light. Due to the absorption of water molecules and impurities, light decays rapidly in water. In order to obtain digital images with appropriate brightness, an illumination light source is often included in underwater imaging systems. However, since the light source and imaging unit are usually designed on the same side of the underwater target, the observation of the target is strongly affected by the backscattering of the water body, and the obtained image will be partially overexposed and the scene underexposed, so it is difficult to Get clear images of underwater objects. [0003] At pre...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/235
CPCH04N23/56H04N23/54H04N23/55H04N23/74
Inventor 吴厚德李思蕊
Owner DALIAN MARITIME UNIVERSITY
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