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. 03, 2004
Filed:
Jan. 15, 2003
Applicant:
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 2/730 ; G02B 2/710 ; G02B 6/26 ; G02B 6/32 ; G02B 6/38 ;
U.S. Cl.
CPC ...
G02B 2/730 ; G02B 2/710 ; G02B 6/26 ; G02B 6/32 ; G02B 6/38 ;
Abstract
In an input-output optical system of spatially optical coupled type, a spacer is provided in at least one of input and output optical systems and interposed between a lens array block and a fiber block without blocking an optical path for ensuring a distance corresponding to a focal distance of collimating lenses. As a result, highly-accurate, highly-stable alignment of an optical axis can be readily realized.