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:
Apr. 10, 1984
Filed:
May. 18, 1982
Applicant:
Inventor:
Yoshiyuki Nakano, Tokyo, JP;
Assignee:
Nippon Kogaku K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354152 ; 3541731 ; 3542711 ;
Abstract
A portion of the driving force for the aperture control apparatus is used to accumulate mechanical energy as required to drive a certain particularly selected device which is to be operated after the operation of the aperture control apparatus. To this end, there is provided mechanical energy accumulation means connected to the driving source. As the result of the work of the mechanical energy accumulation, the speed of the displacement mechanism is reduced.