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:
Apr. 27, 2010
Filed:
Apr. 22, 2005
Akifumi Takamizawa, Sendai, JP;
Keiichi Edamatsu, Natori, JP;
Akifumi Takamizawa, Sendai, JP;
Keiichi Edamatsu, Natori, JP;
Japan Science and Technology Agency, Kawaguchi-shi, JP;
Abstract
A Littrow-type external-cavity diode laser optical axis displacement correction method and device to easily, inexpensively, and accurately correct displacement of optical axis in Littrow-type ECDLs is provided. In the Littrow-type ECDL optical axis displacement correction device and method, a means for introducing a laser beam, a jigfor integrally fixing a diffraction gratingand a prisminto which the laser beam is introduced in a predetermined arrangement, and a rotary shaftcapable of integrally rotating the diffraction gratingand the prismare included. By the rotation of the diffraction gratingand the prismaround the rotary shaft, the wavelength of the incident light can be changed, and the optical axis of the output lightis not changed by the change of the wavelength.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile