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. 25, 2014
Filed:
Apr. 02, 2008
Huei Pei Kuo, Cupertino, CA (US);
Robert G. Walmsley, Palo Alto, CA (US);
Shih-yuan Wang, Palo Alto, CA (US);
Michael Renne Ty Tan, Menlo Park, CA (US);
R. Stanley Williams, Portola Valley, CA (US);
Huei Pei Kuo, Cupertino, CA (US);
Robert G. Walmsley, Palo Alto, CA (US);
Shih-Yuan Wang, Palo Alto, CA (US);
Michael Renne Ty Tan, Menlo Park, CA (US);
R. Stanley Williams, Portola Valley, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Embodiments of the present invention relate to a family of image-rotation prisms. Each image-rotation prism has the property that as an image-rotation prism is rotated, an image passing through the image-rotation prism rotates at twice the angular rate of the image-rotation prism. Embodiments of the present invention include optical systems that can be used for board-to-board communications and employ the image-rotation prisms to compensate for arbitrary axial rotations and misalignment of optical signals and can be used to direct optical signals output from transmitters on one board to particular detectors of a detector arrangement located on an adjacent board.