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, 1998
Filed:
Jun. 07, 1996
Applicant:
Inventor:
Masao Jyojiki, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; G01D / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
347257 ; 347134 ;
Abstract
A positioning apparatus of an optical element in the form of a thin film includes at least one positioning element having a surface opposed to the optical element without contacting the same, together with a mechanism for moving at least one of the optical element or the positioning element, in a direction parallel to a plane of the thin film. The opposed surface of the positioning element produces a fluid force when relative movement between the optical element and the opposed surface of the positioning element occurs and serves to hold the thin film at a predetermined position. An optical scanner incorporating such a positioning apparatus is also disclosed.