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. 04, 2011
Filed:
Mar. 25, 2008
Yasuyuki Suzuki, Tokyo, JP;
Yoshihiro Sanpei, Tokyo, JP;
Shinji Iio, Tokyo, JP;
Morio Wada, Tokyo, JP;
Mamoru Hihara, Tokyo, JP;
Koki Iemura, Tokyo, JP;
Yasuyuki Suzuki, Tokyo, JP;
Yoshihiro Sanpei, Tokyo, JP;
Shinji Iio, Tokyo, JP;
Morio Wada, Tokyo, JP;
Mamoru Hihara, Tokyo, JP;
Koki Iemura, Tokyo, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
An interferometer of the invention includes: a first splitting element which includes a first transparent medium and a first splitting film formed on the first transparent medium, and which splits incident light into a first split beam and a second split beam, the first split beam being the incident light reflected by the first splitting element and the second split beam being the incident light transmitted through the first splitting element; and a second splitting element which includes a second transparent medium and a second splitting film formed on the second transparent medium, and which causes interference between the first split beam and the second split beam passed through different optical paths, the second splitting element being positioned such that a positional relationship between the second transparent medium and the second splitting film with respect to a direction of incidence on the second splitting element of the first split beam is opposite to a positional relationship between the first transparent medium and the first splitting film with respect to a direction of incidence of the incident light on the first splitting element.