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. 10, 2012
Filed:
Nov. 30, 2007
Tetsuya Nagano, Osaka, JP;
Masaru Koeda, Kyoto, JP;
Makoto Sato, Kyoto, JP;
Akira Sato, Kyoto, JP;
Shinji Miyauchi, Kyoto, JP;
Tetsuya Nagano, Osaka, JP;
Masaru Koeda, Kyoto, JP;
Makoto Sato, Kyoto, JP;
Akira Sato, Kyoto, JP;
Shinji Miyauchi, Kyoto, JP;
Shimadzu Corporation, Kyoto-shi, JP;
Abstract
A grating of the present invention has a groove cross section shaped, for example, like a sinusoidal wave or a sawtooth other than a laminar shape, and a groove bottom part shaped as a flat form. In a region wherein the groove cycle and the used wavelength are the same degree for wavelengths from near infrared to infrared, the grating of the present invention has the excellent spectrum performance (high efficiency in balance in a wide wavelength zone) more than a holographic grating and an echellette grating in related arts. When replicas for the grating of the present invention are manufactured, the engagement force of grooves with each other is small as the groove aspect ratio is small, and a release agent sufficiently reaches the groove bottom as the groove bottom is large.