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. 10, 2004
Filed:
Feb. 27, 2001
Masami Hatori, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
The present invention provides a light wavelength conversion module in which an output light amount of a light wavelength conversion element increases monotonically as a driving current of a semiconductor laser increases. The light wavelength conversion module includes the semiconductor laser having an external resonator provided with a narrow band-pass filter, and the light wavelength conversion element for converting a laser beam emitted from the semiconductor laser to a second harmonic wave. A semiconductor laser, which emits a laser beam including a plurality of longitudinal mode spectra within an acceptable wavelength band of the light wavelength conversion element, is used in the light wavelength conversion module.