DR. JONATHAN R SACHS, MD
Osteopathic Medicine at 172 Ave, Vancouver, WA

2013022, Aug 29, 2013

Mar 25, 2013

13/850255

Howard V. Goetz - Tigard OR, US
James L. Sanford - Camas WA, US
Jonathan A. Sachs - Vancouver WA, US

G09G 3/36

345697

A technique for modulating light by an optically addressed, electric charge accumulating spatial light modulator achieves substantially monotonic gray scale response. Embodiments digitally modulate the voltage across a photoreceptive material included in the spatial light modulator. The digital modulation scheme entails illuminating the photoreceptor with a series of light pulses propagating from an LCoS, in which the durations of the light pulses and their positions in time combine to produce binary-weighted equivalent rms voltages on the photoreceptor. The light pulses originate from a light-emitting diode or other switchable light source, and the timing of the light pulses is controlled such that they are emitted only when the associated LCoS is in a stable state. Emitting light pulses while the LCoS is in a stable state avoids non-monotonic behavior.

7440157, Oct 21, 2008

Mar 2, 2007

11/713773

Jerry M. Woodall - Westpoint IN, US
Jonathan A. Sachs - Vancouver WA, US

Fury Technologies Corporation - Vancouver WA

G02F 1/03, G02F 1/135, H01L 29/06

359245, 359256, 257 21, 349 25, 349 29, 349 30

An optical device has an electrically insulating first barrier layer disposed over a first electrode layer, a photoconductive layer disposed over the first barrier layer, and a carrier confining layer disposed over the photoconducting layer. The carrier confining layer defines a volume throughout which a plurality of carrier traps are dispersed. Further, an electrically insulating second barrier layer is disposed over the carrier confining layer, a light blocking layer is disposed over the second barrier layer for blocking light of a selected wavelength band. A reflective layer is disposed over the light blocking layer for reflecting light within the selected wavelength band, a birefringent or dispersive layer is disposed over the reflective layer, and an optically transmissive second electrode layer is disposed over the birefringent or dispersive layer. A method is also disclosed, as are additional layers intervening between those detailed above.

7990600, Aug 2, 2011

May 24, 2005

11/569498

Jonathan A. Sachs - Vancouver WA, US
Howard V. Goetz - Tigard OR, US
David Keith - Vancouver WA, US
Lin Li - St. Petersburg FL, US
Steven H. Linn - Hillsboro OR, US
Alexander Parfenov - Rancho Palos Verdes CA, US
Stephen E. Brice - Portland OR, US
Terry J. Scheffer - Hilo HI, US
James A. Van Vechten - Corvallis OR, US
Jiuzhi Xue - Broomfield CO, US

Compound Photonics Limited - Phoenix AZ

G02F 1/03

359241, 359244

An optically addressed, photoconductive spatial light modulator (SLM) operates in a transmissive mode and is capable of modulating a wide spectrum of visible light. There is no pixel structure or native pixel resolution in the SLM. The SLM has no photodiodes and does not rectify. A light projection system () in which one or more SLMs () are placed includes a write (image definition) UV light path () and a read (illumination) visible light path () to form a color image projection display. The write UV light propagates from an image display pattern source () and either sequentially or continuously writes image patterns on the photoconductive SLMs. The read visible light propagates through the SLM and is modulated by an electro-optical material, the optical properties of which change in response to the image structure carried by the write light. The result is a high efficiency display system that delivers high resolution color images through a projection lens () onto a display screen.

8013820, Sep 6, 2011

Jun 1, 2007

11/809417

Howard V. Goetz - Tigard OR, US
James L. Sanford - Camas WA, US
Jonathan A. Sachs - Vancouver WA, US

Compound Photonics Limited - Phoenix AZ

G09G 3/36

345 87, 345 94, 359264

A method, device and computer program are detailed for modulating write light. For a plurality of pixel locations of an electro-optic layer of an optical write valve and across each of a plurality of consecutive frames, a set of pixel data bits is modulated across a first and a second pulse width period of the frame. The first and second pulse width periods, and adjacent pulse periods of sequential frames, are separated from one another by a pulse-off period that is at least equal to a response time of the electro-optic layer during which no bits are modulated. Separately in each frame, write light is output from each of the plurality of pixel locations according to the modulated pixel data bits in the frame. In an embodiment, the set of pixel data bits are modulated by applying a voltage at a pixel location of the electro-optic layer in synchronism with illuminating a light source that illuminates that pixel location.

8405690, Mar 26, 2013

Jun 1, 2007

11/809416

Howard V. Goetz - Tigard OR, US
James L. Sanford - Camas WA, US
Jonathan A. Sachs - Vancouver WA, US

Compound Photonics Limited - London

G09G 5/10, G09G 3/36, G09G 5/02, G02F 1/03, G02F 1/00, G02F 1/1335, H03K 7/08

345691, 345 89, 345 99, 345694, 359242, 359245, 359264, 348751, 349 5, 332109

A technique for modulating light by an optically addressed, electric charge accumulating spatial light modulator achieves substantially monotonic gray scale response. Embodiments digitally modulate the voltage across a photoreceptive material included in the spatial light modulator. The digital modulation scheme entails illuminating the photoreceptor with a series of light pulses propagating from an LCoS, in which the durations of the light pulses and their positions in time combine to produce binary-weighted equivalent rms voltages on the photoreceptor. The light pulses originate from a light-emitting diode or other switchable light source, and the timing of the light pulses is controlled such that they are emitted only when the associated LCoS is in a stable state. Emitting light pulses while the LCoS is in a stable state avoids non-monotonic behavior.