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. 13, 2002
Filed:
Jul. 06, 2000
Applicant:
Inventors:
Katsumi Hayashi, Kaisei-machi, JP;
Toshiro Hayakawa, Kaisei-machi, JP;
Yoji Okazaki, Kaisei-machi, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 9/16 ;
U.S. Cl.
CPC ...
F21V 9/16 ;
Abstract
A fluorescence observing apparatus including a light source for emitting excitation light, an excitation light irradiation section for irradiating the excitation light to a sample, and a fluorescence measurement section for measuring fluorescence emitted from the sample by the irradiation of the excitation light. The temperature of the light source is always sensed by a thermistor, and a Peltier element disposed in direct contact with the light source is cooled by a control section so that the temperature of the light source is maintained at 20° C. or less.