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. 06, 2004
Filed:
Dec. 19, 2001
Applicant:
Inventor:
Fumiaki Miyamaru, Osaka, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/700 ;
U.S. Cl.
CPC ...
B41J 2/700 ;
Abstract
This invention relates to a focal position adjusting apparatus having a lens which converges an electromagnetic wave to a focal position; first electrodes fixed to the lens; second electrodes being opposed arranged so as to be spaced apart from each of the electrodes in the optical axis direction of the lens; a power supply which supplies variable voltage which applies voltage to the first electrodes and the second electrodes and a biasing unit which biases the lens in a direction using an attractive force caused by static electricity between each of the first and second electrodes and the opposed electrodes caused by the application of a voltage.