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. 23, 2016
Filed:
Nov. 28, 2014
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, CN;
Haibo Zhang, Shanghai, CN;
Zhijun Yuan, Shanghai, CN;
Jun Zhou, Shanghai, CN;
Yunrong Wei, Shanghai, CN;
Liyuan Jiang, Shanghai, CN;
Liming Geng, Shanghai, CN;
Abstract
An apparatus and method for adjusting prism beam expander. The prism beam expander adjustment apparatus has a light source, a baseplate, a precise rotary stage, support columns, a two-dimensional slide stage, the first 90-degree bellcrank lever, an indication light source, the second 90-degree bellcrank lever, an optical filter, a photodetector, a computer, and an assembly platform. Incidence angles of all prisms of a prism beam expander can be precisely demarcated and designed beam magnification is obtained with the preferred adjustment methods. The parallel of the prisms can be guaranteed by monitoring the pitching of the prisms in the adjustment process. As a result, the linewidth narrowing and cavity losses decreasing can be improved by application of the fixed prism beam expander.