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. 19, 2018
Filed:
Apr. 28, 2016
Sumitomo Osaka Cement Co., Ltd, Tokyo, JP;
Tokutaka Hara, Tokyo, JP;
Toshio Kataoka, Tokyo, JP;
SUMITOMO OSAKA CEMENT CO., LTD., Chiyoda-Ku, Tokyo, JP;
Abstract
Provided is a polarization-combining module in which it is possible to suppress deviation of an optical axis in a polarization-combining optical system and to perform efficient polarization combination with a less optical loss. A polarization-combining module includes: a PBSwhich combines two linearly polarized lights input and emits the combined light; a λ/2 wavelength platewhich is provided on an optical path of at least one of the two linearly polarized lights which are input to the PBS, and provides polarization rotation by a predetermined angle to the linearly polarized light that passes therethrough; and a pedestal memberon which the λ/2 wavelength plateand the PBSare mounted, in which the pedestal memberhas a protrusion partwhich defines mounting positions of the λ/2 wavelength plateand the PBSso as to be separated from each other and be parallel to each other, and the λ/2 wavelength plateand the PBSare mounted on the pedestal memberwith apart of each of the λ/2 wavelength plateand the PBSbeing brought into contact with the protrusion part
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile