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:
Mar. 27, 2007
Filed:
Jan. 14, 2003
Masato Moriya, Hiratsuka, JP;
Tatsuo Enami, Yokohama, JP;
Hirokazu Kubo, Oyama, JP;
Masashi Shinbori, Oyama, JP;
Toru Suzuki, Hiratsuka, JP;
Masato Moriya, Hiratsuka, JP;
Tatsuo Enami, Yokohama, JP;
Hirokazu Kubo, Oyama, JP;
Masashi Shinbori, Oyama, JP;
Toru Suzuki, Hiratsuka, JP;
Gigaphoton, Inc., Tokyo, JP;
Abstract
In a wavelength detecting apparatus using an etalon, a drift in wavelength measurement by the etalon is stabilized and an adverse influence of out gas is eliminated, so that correct wavelength measurement is realized. The wavelength detecting apparatus includes a housing equipped with a port for use of introducing replacement gas, an etalon set inside the housing, and a moisture-absorbing unit for absorbing at least moisture released inside the housing.