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.

Date of Patent:
Dec. 27, 2005

Filed:

Sep. 29, 2003
Applicants:

Tracy F. Thonn, Sunnyvale, CA (US);

R. Ian Edmond, Meadow Vista, CA (US);

Inventors:

Tracy F. Thonn, Sunnyvale, CA (US);

R. Ian Edmond, Meadow Vista, CA (US);

Assignee:

Coherent, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B013/14 ; G02B005/30 ; G02B005/04 ;
U.S. Cl.
CPC ...
Abstract

A truncated triangular prism has an entrance and an exit face perpendicular to each other and a reflecting face inclined at an angle α to the entrance face where α is about 135°−θ, and where θis the external Brewster angle for the material of the prism at the wavelength of radiation to be reflected by the prism. A beam of p-polarized radiation directed into the prism through the entrance face at the Brewster angle is totally internally reflected from the reflecting face and leaves the exit face at the Brewster angle and at an angle of ninety degrees to the direction at which the radiation enters the prism.


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