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:
Feb. 07, 1995
Filed:
Dec. 11, 1992
Applicant:
Inventor:
Toru Katsumoto, Kanagawa, JP;
Assignee:
Sony Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
348335 ; 348207 ; 348208 ;
Abstract
In an imaging apparatus for driving a lens system mounted a housing by way of a linear motor, a detection is made of a component of force along an optical axis direction, among external force applied to the lens system based upon a drive current outputted from the lens driving means under control of the control means during the stationary servo mode. As a result, the component force given to the lens system along the optical axis direction can be detected. Thus, a so-called 'ground imaging operation' in which the camera is inadvertently left on and pointed at the ground can be prevented without providing any sensor of the optical axis.