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, 2012
Filed:
Dec. 01, 2008
Massimo Martinelli, Santa Clara, CA (US);
Long Yang, Union City, CA (US);
Jeffrey E. Ehrlich, San Jose, CA (US);
Mark H. Garrett, Morgan Hill, CA (US);
Massimo Martinelli, Santa Clara, CA (US);
Long Yang, Union City, CA (US);
Jeffrey E. Ehrlich, San Jose, CA (US);
Mark H. Garrett, Morgan Hill, CA (US);
Capella Photonics, Inc., San Jose, CA (US);
Abstract
An optical assembly for double passing a transmission grating may include a prism having first, second and third surfaces. A transmission grating may be bonded to the first surface. A first mirror coating may be bonded to the second surface and a second mirror coating to the third surface. The first, second and third surfaces, the transmission grating and the first and second mirror coatings are configured such that light of a predetermined wavelength entering the prism that is incident on the transmission grating is diffracted a first time by the transmission grating towards the second surface, reflected from the second surface to the third surface, reflected from the third surface back to the transmission grating, and diffracted a second time by the transmission grating as the light exits the prism.