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:
Apr. 17, 2007

Filed:

Nov. 08, 2004
Applicants:

Tom Sheau Tung Wong, Jalan Chempaka Puteh, SG;

Adrianus J. P. Van Haasteren, Signature Park, SG;

Inventors:

Tom Sheau Tung Wong, Jalan Chempaka Puteh, SG;

Adrianus J. P. van Haasteren, Signature Park, SG;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment, a lens has an object surface and an image surface, with the shape of the image surface being defined by an equation having a conic component and a cone component. The lens may be incorporated into an optical receiver having a photodetector that is positioned to receive light emitted from the image surface of the lens. In some uses, the image surface of the lens mitigates return loss through the lens.


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