Rodney D Sterling

US Patent:

20070146880, Jun 28, 2007

Filed:

Dec 27, 2005

Appl. No.:

11/319833

Inventors:

William Bleha - Carlsbad CA, US
Rodney Sterling - Carlsbad CA, US

International Classification:

G02B 27/22

US Classification:

359468000, 359465000, 359498000

Abstract:

The present invention relates to an optical device for splitting incident unpolarized white light into simultaneously spectrally separated and orthogonally polarized light beams having complementary primary color bands by using interference filters for primary color bands such as the Infitec filters. The optical device embodying the present invention can be used in, for example, illumination systems for passive stereoscopic 3D display systems. When used in the stereoscopic 3D display system, the present invention provides a high degree of spectral and polarization separation of the individual stereoscopic images and the increased efficiency in use of illumination light compared to the conventional stereoscopic projection systems.

US Patent:

53846508, Jan 24, 1995

Filed:

Apr 6, 1992

Appl. No.:

7/863659

Inventors:

Robert D. TeKolste - San Diego CA
Rodney D. Sterling - Carlsbad CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G02F 11337
G02F 11335
G02F 113

US Classification:

359 77

Abstract:

A liquid crystal light valve projection system is provided with increased optical overshoot, and thereby decreased optical response time, by employing a liquid crystal mixture (52) having molecules substantially perpendicularly aligned to the face of the liquid crystal light valve electrodes (42,70) and axially twisted. The axial twist of the liquid crystal molecules is provided by laying down alignment grooves (90,92,96,98) for the liquid crystal mixture that are oriented with respect to one another, on the opposite alignment layers, by an angle of between about 45. degree. and 90. degree. This mutually angled orientation of the opposed alignment grooves on the opposed alignment layers causes optical overshoot of the system to vary when the entire liquid crystal cell (34) is rotated relative to the output polarizer (18) about an axis perpendicular to the output face of the cell. This rotation of the cell (34) of twisted perpendicular liquid crystal relative to the output polarizer (18) allows a faster optical rise time to be achieved.

US Patent:

60611022, May 9, 2000

Filed:

Oct 10, 1997

Appl. No.:

8/949105

Inventors:

John P. Sheppard - Valley Center CA
Rodney D. Sterling - Carlsbad CA
Graeme D. Gow - Carlsbad CA
John J. Lyon - San Marcos CA

Assignee:

Hughes-JVC Technology Corporation - Carlsbad CA

International Classification:

H04N 3223
H04N 928

US Classification:

348745

Abstract:

A process for implementing shading corrections in a video projector. The process selects a color to be shaded, and then sets a projector video level at a selected high video level. A target brightness map is then generated for each of a plurality of preselected shading correction application points at the selected high video level. The process sets the projector video level at a selected low video level, and generates a target brightness map for each of the plurality of shading correction application points at the low video level. Actual light levels are then measured at both the high and low video levels for each shading correction application point, and differences between the target and measured brightness values are minimized. The shading process of the present invention is automatically preformed during projector set-up, and thereby eliminates the inherent subjective and time consuming need for conventional manual shading processes.

US Patent:

54417767, Aug 15, 1995

Filed:

Nov 8, 1993

Appl. No.:

8/149195

Inventors:

Rodney D. Sterling - Carlsbad CA
Yu-Tai Lee - San Diego CA

International Classification:

G02F 1135

US Classification:

428 1

Abstract:

A liquid crystal light valve that has an indium tin oxide (ITO) primary electrode disposed between two silicon dioxide bonding layers. The first bonding layer for bonding the primary electrode to a glass substrate and the second bonding layer for bonding said primary electrode to a hydrogenated amorphous silicon layer. The ITO primary electrode is sputtered which significantly reduces processing time and the silicon dioxide bonding layers allow the primary electrode to be bonded to the glass substrate and the hydrogenated amorphous silicon layer without peeling. For some applications the silicon dioxide bonding layer between the glass substrate and the primary electrode is not necessary.

US Patent:

58447229, Dec 1, 1998

Filed:

Jun 5, 1997

Appl. No.:

8/864884

Inventors:

Craig P. Stephens - Carlsbad CA
David G. Jackson - Oceanside CA
Javier A. Ruiz - Oceanside CA
Rodney D. Sterling - Carlsbad CA

Assignee:

Hughes-JVC Technology Corporation - Carlsbad CA

International Classification:

G02B 2714
G02B 702

US Classification:

359637

Abstract:

An optical system is provided that has an enclosure which is substantially filled with a fluid. The enclosure also has an aperture for receiving an electromagnetic wave that is altered by an optical component contained in the enclosure. The enclosure also has an aperture mask and blocker that are at least partially immersed in the fluid.

US Patent:

47997737, Jan 24, 1989

Filed:

Aug 27, 1987

Appl. No.:

7/090053

Inventors:

Rodney D. Sterling - Carlsbad CA

Assignee:

Hughes Aircraft Company - Los Angeles CA

International Classification:

G02F 1135

US Classification:

350342

Abstract:

A LCLV device exhibiting improved performance capabilities fabricated using an amorphous silicon photoconductor layer, a cadmium telluride blocking layer, a titanium dioxide mirror and a sepcial bonding layer which enables attachment of the cadmium telluride blocking layer to the amorphous silicon. The bonding layer includes silicon dioxide sputtered in successive argon and argon/oxygen atmospheres followed by cadmium telluride sputtered in successive argon/oxygen and argon atmospheres. The bonding layer may also be used in other applications to bond a cadmium telluride layer to single crystal silicon or silicon dioxide layers.

US Patent:

55702139, Oct 29, 1996

Filed:

May 10, 1994

Appl. No.:

8/240541

Inventors:

Javier A. Ruiz - Oceanside CA
Rodney D. Sterling - Carlsbad CA

Assignee:

Hughes-JVC Technology Corporation - Carlsbad CA

International Classification:

G02F 1135
G02F 11335

US Classification:

359 72

Abstract:

A reflective liquid crystal light valve includes transparent conductive layers of indium tin oxide (30) employed as an electrode to electrically modulate orientation of molecules of a liquid crystal material that receives a high intensity reading light (40) applied through the transparent electrode. Unwanted double reflection (64,66) from interfaces between the indium tin oxide electrode (30) and adjacent layers (22,32) are minimized by application of broad band anti-reflective coatings (70,72,74,76) formed by one or more pairs of thin layers having alternately high and low indices of refraction.

US Patent:

55768547, Nov 19, 1996

Filed:

Nov 12, 1993

Appl. No.:

8/152996

Inventors:

Jack H. Schmidt - Carlsbad CA
Ned Nestorovic - San Diego CA
Rodney D. Sterling - Carlsbad CA
Joseph M. Haggerty - Fallbrook CA
Javier A. Ruiz - Oceanside CA
Robert Edwards - San Marcos CA
Roger Hollister - Torrance CA

Assignee:

Hughes-JVC Technology Corporation - Carlsbad CA

International Classification:

G02F 11335
G02F 11333

US Classification:

359 40

Abstract:

In a liquid crystal light valve projector, a quarter-wave compensator plate is disposed between a polarization plate and a liquid crystal light valve to compensate for polarization irregularities induced by the off-incident reflections in the cone of light projected onto the LCLV. The quarter-wave compensation plate reverses the phase of the P component of said illumination light with respect to said compensator plate by 180. degree. thereby eliminating P-polarization leakage during the dark state of an LCLV projector. The invention also combines the compensator plate with a heat shield and a low stress-optical coefficient counter electrode substrate to reduce the birefringence of the LCLV thereby also minimizing leakage of P-polarized light onto the projection screen during the dark state of the projector.