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. 25, 2011
Filed:
Apr. 30, 2008
Atsushi Mukai, Ashigarakami-gun, JP;
Shinichiro Sonoda, Ashigarakami-gun, JP;
Atsushi Mukai, Ashigarakami-gun, JP;
Shinichiro Sonoda, Ashigarakami-gun, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The present invention provides an optical device and an exposure apparatus capable of suppressing a reduction in light output. The optical device of the present invention includes a laser light source which emits laser light having a short wavelength (e.g., 160 to 500 nm), a lens, a transparent member and an optical fiber provided with a junction-inhibiting film. The optical device is configured such that light density of abutment faces between the transparent member and the optical fiber formed with the junction-inhibiting film is 4464 W/mmor less, thereby suppressing a reduction in light output which may be caused by fusion.