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:
Feb. 04, 2014
Filed:
May. 24, 2006
Tohru Shimizu, Tsuchiura, JP;
Tohru Shimizu, Tsuchiura, JP;
Tokyo Seimitsu Co., Ltd, Tokyo, JP;
Tosei Engineering Corp, Ibaraki, JP;
Abstract
A laser interferometer () comprises: a first beam splitter () which splits a laser beam emitted from a light source () into a first beam (L) and a second beam; a second beam splitter () which splits the second beam into a third beam (L) and a fourth beam (L), and which causes reflected beams, produced by reflection of the split beams (L, L) and incident from reverse directions to the directions of the split beams, to exit in a reverse direction to the direction of the second beam; and a beam selecting unit () which, from among the reflected beams produced by reflection of the third and fourth beams (L, L) and caused to exit the second beam splitter () in the reverse direction to the direction of the second beam, selects a beam to be combined in the first beam splitter () with a reflected beam produced by reflection of the first beam (L) and incident on the first beam splitter from a reverse direction to the direction of the first beam (L).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile