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. 18, 1981
Filed:
Feb. 06, 1980
Applicant:
Inventor:
Yuji Ikuno, Hino, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ; A61B / ;
U.S. Cl.
CPC ...
354 32 ; 354 50 ; 354 62 ; 354173 ;
Abstract
A camera for an endoscope has a transmitting circuit for transmitting a release signal and a modulated signal modulated by a photocurrent signal, and a superposing circuit for superposing the modulated signal onto a motor drive line connecting to a film wind motor. A light source unit has a demodulated circuit for demodulating the modulated signal transmitting from the transmitting circuit, through the motor drive line. An exposure measuring circuit calculates an optimum exposure by using the demodulated signal from the demodulating circuit.