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:
May. 23, 2006
Filed:
Nov. 07, 2003
Ken Kawamata, Hachioji, JP;
Yorio Wada, Hanno, JP;
Nobuyoshi Toyohara, Sagamihara, JP;
Takeshi Deguchi, Matto, JP;
Kunihiko Uzawa, Sagamihara, JP;
Joji Sakamoto, Hachioji, JP;
Ken Kawamata, Hachioji, JP;
Yorio Wada, Hanno, JP;
Nobuyoshi Toyohara, Sagamihara, JP;
Takeshi Deguchi, Matto, JP;
Kunihiko Uzawa, Sagamihara, JP;
Joji Sakamoto, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A fluorescence observing apparatus has an excitation filter unit for transmitting only exciting light with particular wavelengths, of illuminating light, and an absorption filter unit for transmitting only fluorescent light produced from a specimen by irradiating the specimen with the exciting light to block the exciting light. In this case, the space between the half-value wavelength on the long-wavelength side of the excitation filter unit and the half-value wavelength on the short-wavelength side of the absorption filter unit is in the range of 6–12 nm, and variations in the half-value wavelengths of the excitation filter unit and the absorption filter unit where humidity is changed from 10% to 95% are within 0.5 nm. Whereby, faint fluorescent light is efficiently taken out and the observation can be made.