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. 16, 1988
Filed:
Oct. 14, 1987
Applicant:
Inventor:
Andrew L Wilson, Currie, GB;
Assignee:
Ferranti, plc, Cheadle, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350486 ; 350-66 ;
Abstract
An optical element (10) is pivoted for limited rotation about an axis (12). An actuator arm (14) is rotatable by an actuator (13) about an axis (15) and is connected to the optical element by a first link (16). A second link (21) connects the actuator arm (14) to a balance arm (18) which carries a balance mass (20) and is pivoted about an axis (19). The arrangement is such that the line (23) joining the axis (12) of the optical element to the point of connection between the first link (16) and the optical element (10) is always parallel to the line (24) joining the axis (19) of the balance arm (18) to the point of connection between the balance arm and the second link (21).