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:
Jun. 07, 2016
Filed:
Jun. 24, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yasuhiro Nagatomo, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A surface emitting laser operable to change a wavelength of emitted light includes a first reflecting mirror, a second reflecting mirror, wherein a cavity is formed between the first reflecting mirror and the second reflecting mirror along the optical axis of the surface emitting laser, an active layer formed within the cavity, a region formed within the cavity, and a movable part situated within the region, the movable part having a refractive index different from a refractive index of the region. The wavelength of emitted light is changeable by changing the position of the movable part along the direction of the optical axis in the region.