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. 07, 2009
Filed:
Jun. 18, 2007
Kazuyuki Hirao, Kyoto-shi, Kyoto, JP;
Yasuhiko Shimotsuma, Kyoto, JP;
Takahiro Matsubara, Kyoto, JP;
Jianrong Qiu, Nara, JP;
Kazuyuki Hirao, Kyoto-shi, Kyoto, JP;
Yasuhiko Shimotsuma, Kyoto, JP;
Takahiro Matsubara, Kyoto, JP;
Jianrong Qiu, Nara, JP;
Other;
Kyocera Corporation, Kyoto, JP;
Abstract
A photoinduced refractive-index changing region is formed by irradiating while focusing a single beam of pulse laser light having an energy amount to cause a photoinduced change in refractive index onto a light guide of an optical element such as a lens, a mirror, a diffraction grating, a polarizer, or a wavelength filter. In the photoinduced refractive-index changing region, since the refractive index is periodically changed in one direction, of the light propagating through the optical element, only a polarized light penetrates through this photoinduced refractive-index changing region. Accordingly, the photoinduced refractive-index changing region can be functioned as a polarizer.