Recent Developments In Underwater Laser Scanning Systems

Bryan W Coles

doi:10.1117/12.948640

16 December 1988 Recent Developments In Underwater Laser Scanning Systems

Bryan W Coles

Proceedings Volume 0980, Underwater Imaging; (1988) https://doi.org/10.1117/12.948640
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

A prototype underwater laser scanner imaging system has been built and tested in a laboratory test tank. Simultaneous tests were conducted with two state of the art commercial underwater television cameras to quantify the performance of the prototype scanner relative to conventional imaging systems. Tests were conducted with the clarity of the water adjusted to match the clarity of clear deep ocean water, beam attenuation coefficient c = 0.10/meter, and the clarity of typical coastal water, c = 0.39/meter. The scanner system used a 40 milliwatt (combined 488 nanometer and 514.5 nanometer) Argon ion laser as the light source and a 2 inch diameter photo multiplier tube (PMT) as the detector. The PMT had an unrestricted field view. No scan synchronization, range gating, or other advanced techniques were used.

Citation Download Citation

Bryan W Coles "Recent Developments In Underwater Laser Scanning Systems", Proc. SPIE 0980, Underwater Imaging, (16 December 1988); https://doi.org/10.1117/12.948640

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