The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 1977
Filed:
Jul. 10, 1975
Applicant:
Inventor:
Richard F Jones, Santa Barbara, CA (US);
Assignee:
General Aquadyne, Inc., Santa Barbara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 99 ;
Abstract
Video cameras and illuminating lights on the helmets of commercial divers are caused to give satisfactory images in turbid water by a combination of camera adjustment and very low light levels. Lights of five to twenty-five watts total are employed with video cameras that have the sensitivity increased five to ten times normal and wherein the useful light range of the camera is adjusted to be three to five times the illumination from the lamps. It is desirable also to render the automatic gain control of the camera inoperative, at least over the lower part of that light range of the camera.