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:
Jan. 13, 2004
Filed:
Aug. 21, 2002
Applicant:
Inventors:
Kunioki Mima, Takatsuki, JP;
Ryosuke Kodama, Minoo, JP;
Tatsuhiko Yamanaka, Toyonaka, JP;
Yoneyoshi Kitagawa, Minoo, JP;
Kazuo Tanaka, Minoo, JP;
Yasuhiko Sentoku, San Diego, CA (US);
Assignee:
Osaka University, Suita, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/10 ;
U.S. Cl.
CPC ...
G02B 5/10 ;
Abstract
A hollow tube having a pair of openings which have their respective different diameters and are opposed each other is prepared. Then, a pulsed laser beam is introduced into the hollow tube from the larger opening thereof and then, reflected multiply on the inner wall surface of the hollow tube. The introduced pulsed laser beam is focused during the traveling for the smaller opening of the hollow tube to generate a focused laser beam. The thus obtained focused laser beam is output from the smaller opening of the hollow tube.