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:
Aug. 22, 2006
Filed:
Nov. 25, 2003
Henry A. Blauvelt, San Marino, CA (US);
David W. Vernooy, Sierra Madre, CA (US);
Joel S. Paslaski, Alhambra, CA (US);
Henry A. Blauvelt, San Marino, CA (US);
David W. Vernooy, Sierra Madre, CA (US);
Joel S. Paslaski, Alhambra, CA (US);
Xponent Photonics Inc, Monrovia, CA (US);
Abstract
An optical apparatus comprises an optical waveguide, a bottom surface and walls formed on a first substrate and defining a detection volume with an upper opening, and a photodetector active area formed on a photodetector substrate. The bottom surface may be provided with a reflective coating. The waveguide is positioned relative to the detection volume so that light emerging from an end face of the waveguide is received within the detection volume. The detector substrate is mounted on the first substrate so as to cover the upper opening of the detection volume with the active area exposed to the detection volume. The optical waveguide may be formed on the first substrate along with the detection volume, or the optical waveguide may be formed on a separate waveguide substrate, and the waveguide substrate assembled with the first substrate.