Gary N Sharp

US Patent:

8169699, May 1, 2012

Filed:

Dec 22, 2010

Appl. No.:

12/977026

Inventors:

Joel Petersen - Valley Village CA, US
Christopher Rich - Rancho Pales Verdes CA, US
Raymond Jacob Lewandowski - San Diego CA, US
Gary D. Sharp - Boulder CO, US
David Coleman - Louisville CO, US

Assignee:

RealD Inc. - Beverly Hills CA

International Classification:

G03B 21/56

US Classification:

359452, 353 20, 359443, 359454, 359458, 359459

Abstract:

Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.

US Patent:

8403488, Mar 26, 2013

Filed:

Jun 29, 2010

Appl. No.:

12/826332

Inventors:

Miller H. Schuck - Beverly Hills CA, US
Michael G. Robinson - Beverly Hills CA, US
Douglas J. McKnight - Boulder CO, US
Gary D. Sharp - Boulder CO, US

Assignee:

RealD Inc. - Beverly Hills CA

International Classification:

G03B 21/00

US Classification:

353 7, 353 8, 353 20, 353 31, 353 38, 353 98, 349 8, 349 9

Abstract:

Projection systems and methods for providing stereoscopic images viewed through passive polarizing eyewear. The systems relate to projectors that create left and right eye images simultaneously and often as side-by-side images on the image modulator. The systems act to superimpose the spatially separated images on a projection screen with alternate polarization states. The embodiments are best suited to liquid crystal polarization based projection systems and use advanced polarization control.

US Patent:

8427394, Apr 23, 2013

Filed:

Nov 30, 2007

Appl. No.:

11/948772

Inventors:

Gary D. Sharp - Beverly Hills CA, US
Bradley W. Walker - Dallas TX, US

Assignee:

RealD Inc. - Beverly Hills CA

International Classification:

G02F 1/1335

US Classification:

345 7, 345 6, 345 88, 349 13, 349 15, 349 16, 348 51, 359464, 359465

Abstract:

A method for driving at least one shutter glass lens having a property of light retardation that is variable at least according to the wavelength of the light passing through it, the shutter glass lens having an LC cell driven to a relatively “on” or a relatively “off” state according to a voltage applied across it. The lens is further operable to pass temporally modulated color display images of at least first, second, and third wavelengths being applied to a display surface, further including first, second, and third holding voltages to the LC cell in decreasing magnitude to stabilize the retardation of the lens for first, second, and third display image wavelengths.

US Patent:

8488240, Jul 16, 2013

Filed:

Apr 27, 2012

Appl. No.:

13/457707

Inventors:

Joel Petersen - Valley Village CA, US
Christopher Rich - Rancho Pales Verdes CA, US
Raymond Jacob Lewandowski - San Diego CA, US
Gary D. Sharp - Boulder CO, US
David Coleman - Louisville CO, US

Assignee:

RealD Inc. - Beverly Hills CA

International Classification:

G03B 21/60

US Classification:

359452, 359443

Abstract:

Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises stripping an optically functional material from a carrier substrate, thus creating engineered particles from the optically functional material. The engineered particles may then be deposited on a second substrate to create a substantially homogeneous optical appearance of the projection screen.

US Patent:

20130135589, May 30, 2013

Filed:

Nov 29, 2012

Appl. No.:

13/689621

Inventors:

REALD INC. - Beverly Hills CA, US
Gary D. Sharp - Boulder CO, US
Miller H. Schuck - Erie CO, US

Assignee:

REALD INC. - Beverly Hills CA

International Classification:

G02B 27/26
G02B 27/22
G03B 21/14

US Classification:

353 8, 353 20, 353 7, 977774, 977952

Abstract:

Generally, near seamless electronics displays may be employed in cinema and exhibition applications. Laser scanned displays may be enabled such that the display may display three dimensional (“3D”) content. A first method to enable a laser scanned display for 3D content may employ polarization, with or without polarization conversion and another method may employ multiple colors. Additionally, the envelope function that may be employed across the display may be achieved by changing laser power as a beam is scanned on the screen or by changing the dwell time of the laser beam on the pixels. One method of minimizing the effects of seams in the screen may be to reduce the screen resolution near the seams by screen design and/or laser beam dwell time or illumination energy.

US Patent:

20130176407, Jul 11, 2013

Filed:

Jan 4, 2013

Appl. No.:

13/734519

Inventors:

RealD Inc. - Beverly Hills CA, US
Gary D. Sharp - Boulder CO, US
Miller H. Schuck - Erie CO, US

Assignee:

REALD INC. - Beverly Hills CA

International Classification:

H04N 13/04

US Classification:

348 52

Abstract:

Generally, display systems may be employed in cinema and exhibition applications. Laser scanned display systems may be enabled such that the display systems may display three dimensional (“3D”) content. One example of a display system may include a diffusive screen which may be a transmissive diffuser and at least a light engine or an array of light engines, in which the light engine or array of light engines may include at least a light source, beam combining optics which may combine colors into at least one of a single beam or closely spaced beams, and at least a scanning system which may steer the beam to a desired location on the diffusive screen.

US Patent:

20160094820, Mar 31, 2016

Filed:

May 14, 2014

Appl. No.:

14/891247

Inventors:

Gary D. SHARP - Beverly Hills CA, US
David A. COLEMAN - Beverly Hills CA, US
- Beverly Hills CA, US

International Classification:

H04N 9/31
H04N 13/04

Abstract:

Disclosed is a system for balancing brightness in cinema presentation. The brightness between 2D and 3D mode in cinema presentation may be substantially maintained without a substantial change in projector lamp current when switching between the two presentation modes. A dimmer can be engaged which allows the light in at least one path to be attenuated during 2D operation. The dimmer can be activated in any number of ways, including, but not limited to, mechanically, electromechanically, or electro-optically, any combination thereof, and so forth. The dimmer may be inserted in one light path and may be physically removed from the light path during 3D operation in order to maximize 3D efficiency.