Underwater TV surveillance of pipelines

Details Underwater TV surveillance of pipelines Underwater TV surveillance of pipelines

1974-05-15

1979-11-20

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 718

Patent

active

041752694

ABSTRACT:
A method for making underwater photographic surveys of pipelines and cables utilizing a stereo television camera with unique underwater corrected lenses in combination with one or several wet reflector floodlamps mounted on a submarine vehicle which is controlled remotely at the water's surface. The floodlamp placement in combination with the corrected lenses enables the making of underwater surveys even in water clouded with suspended colloidal solids.

REFERENCES:
patent: 2334475 (1943-11-01), Claudet
patent: 2355086 (1944-08-01), Lang
patent: 2849530 (1958-08-01), Fleet
patent: 3184541 (1965-05-01), Foster et al.
patent: 3527881 (1970-09-01), Blanchard
patent: 3674925 (1972-07-01), Heckman, Jr.
patent: 3688666 (1972-09-01), Tuttle et al.
patent: 3765184 (1973-10-01), Menard
patent: 3780220 (1973-12-01), Fugitt et al.
Schulke, "Some Technical Aspects of Underwater Cinematography", Journal of the SMPTE, Dec. 1973, vol. 82, pp. 983-991.

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