Marion N Todd

US Patent:

8194125, Jun 5, 2012

Filed:

Oct 31, 2007

Appl. No.:

11/980912

Inventors:

John A. Mack - El Segundo CA, US
Marion N. Todd - Gainesville GA, US
David F. Rock - Torrance CA, US

Assignee:

Raytheon Company - Waltham MA

International Classification:

H04N 9/47

US Classification:

348131, 362243, 362244, 362245, 362246, 362247

Abstract:

A radiance source includes a housing having an interior wall, wherein at least a spherical portion of the interior wall of the housing is spherical, an interior volume, and an exit port. A light source is disposed within the interior volume of the housing. A calibration structure blocks and reflects a light ray that would otherwise travel directly from the light source to the exit port without reflecting from the interior wall. The calibration structure has a calibration body having a curved back surface facing the light source and a curved front surface facing the exit port. There is an optically diffuse, lambertian reflecting surface on at least the spherical portion of the interior wall of the housing, the back surface of the calibration body, and the front surface of the calibration body.

US Patent:

56545495, Aug 5, 1997

Filed:

May 20, 1996

Appl. No.:

8/650575

Inventors:

Peter B. Landecker - Manhattan Beach CA
Richard C. Savage - Franktown CO
Marion N. Todd - Monrovia CA

Assignee:

Hughes Electronics - Los Angeles CA

International Classification:

G01J 500

US Classification:

250332

Abstract:

An imaging system is attached to a satellite, the imaging system includes a transmitting segment which transmits a field of view of photonic radiation to a focal plane array imager. Displacements such as jitter and drift are capable of being applied to the imaging system, which can result in apparent movement of said field of view applied to the focal plane array imager. A stabilizing segment limits the apparent movement of the field of view detected by said focal plane array imager in two orthogonal sensed translational directions, and about a sensed rotary direction.