Paul R Barker

US Patent:

7568813, Aug 4, 2009

Filed:

Jun 16, 2006

Appl. No.:

11/455259

Inventors:

Paul H. Barker - Centennial CO, US

International Classification:

F21V 7/08

US Classification:

362108, 362103, 362191

Abstract:

An illumination device worn at chest height to illuminate an area proximate to the wearer.

US Patent:

7828455, Nov 9, 2010

Filed:

Jul 28, 2009

Appl. No.:

12/462007

Inventors:

Paul H. Barker - Centennial CO, US

International Classification:

F21V 7/08

US Classification:

362108, 362103, 362191

Abstract:

An illumination device worn at chest height to illuminate an area proximate to the wearer.

US Patent:

60884746, Jul 11, 2000

Filed:

Jul 23, 1997

Appl. No.:

8/899127

Inventors:

David V. Dudasko - Richardson TX
George L. Streckmann - Dallas TX
Dennis L. Doane - Richardson TX
Anthony S. Leonard - Dallas TX
Paul G. Barker - Dallas TX
Donald E. Russell - Richardson TX

Assignee:

Texas Instruments Incorporated - Dallas TX

International Classification:

G06K 900

US Classification:

382145

Abstract:

A visual inspection system (10) and method for inspecting the operation of micromechanical devices. The system has a vision system (16), a vision system controller (18), a system controller (20), an illumination system (12), a digital signal processor and a mounting stage (22). The objects undergoing inspection, either wafers or devices, are mounted under the visions system. A probe card is engaged to the object and power is provided. The vision system (16) records which elements or devices on the object begin operating at that voltage. The voltage is then incremented and the process continues until a determination is made as to the objects operability. The system can also be adapted to inspect micromechanical spatial light modulators by generating images with the modulator and capturing them with the image system. The digital signal processor then analyzes the images while the vision system moves to the next object to be inspected.