Martin Richards

US Patent:

20190250416, Aug 15, 2019

Filed:

Apr 26, 2019

Appl. No.:

16/395424

Inventors:

- San Francisco CA, US
Nathan WAINWRIGHT - Plano TX, US
Douglas J. GORNY - Pacifica CA, US
Martin J. RICHARDS - Gig Harbor WA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G02B 27/09
G03B 21/20
H04N 9/31
G02B 19/00
G02B 6/00
G02B 27/28

Abstract:

Integrating rod modules are disclosed comprising a plurality of single and/or solid integrating rods that are mated together by straps. Such modules tend to comprise a greater length than the single and/or solid integrating rods and provide good illumination to a modulator that light from a light source is transmitted through the integrating rod module. The straps may comprise a material (e.g., glass) that has substantially same or similar thermal characteristics as the integrating rods. The straps may be glued to the integrating rods by a glue having a substantially different (e.g., lower) index of refraction than the integrating rods, so as not to disturb the internal reflectance of the rods. The straps may be reinforced by braces that may allow the integrating rod module to be set within a projection display system at an angle substantially different from horizontal.

US Patent:

20190171095, Jun 6, 2019

Filed:

Feb 5, 2019

Appl. No.:

16/267548

Inventors:

- San Francisco CA, US
Douglas J. DARROW - Frisco TX, US
Craig TODD - Mill Valley CA, US
Martin J. RICHARDS - Gig Harbor WA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G03B 21/20
H04N 9/31
G02B 27/28

Abstract:

Projector display systems comprising a light dimmer and first modulator are disclosed. The light dimmer may comprise an adjustable iris, adjustable light sources and/or LCD stack that is capable of lowering the luminance of the light source illuminated the first modulator. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the light dimmer and first modulator. The display system may render a desired dynamic range for rendering a projected image by a combination of such control signals.

US Patent:

20180217485, Aug 2, 2018

Filed:

Mar 27, 2018

Appl. No.:

15/937482

Inventors:

- San Francisco CA, US
Douglas J. DARROW - Frisco TX, US
Craig TODD - Mill Valley CA, US
Martin J. RICHARDS - Redwood City CA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G03B 21/20
H04N 9/31
G02B 27/28

Abstract:

Projector display systems comprising a light dimmer and first modulator are disclosed. The light dimmer may comprise an adjustable iris, adjustable light sources and/or LCD stack that is capable of lowering the luminance of the light source illuminated the first modulator. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the light dimmer and first modulator. The display system may render a desired dynamic range for rendering a projected image by a combination of such control signals.

US Patent:

20180024429, Jan 25, 2018

Filed:

Dec 21, 2015

Appl. No.:

15/540946

Inventors:

- San Francisco CA, US
Nathan WAINWRIGHT - Plano TX, US
Douglas J. GORNY - Pacifica CA, US
Martin J. RICHARDS - Gig Harbor WA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G03B 21/28
G02B 5/04
G02B 1/11
G03B 21/00
G03B 21/20

Abstract:

Prism assemblies for projector display systems disclosed receive inputs from discrete color channels (e.g., red, green and blue channels. In one embodiment, “off state” light from the red, green, and blue DLP modulation may be reflected away from on-state light paths within the prism, tending to avoid uncontrolled scatter. In other embodiments, by keeping the colors separate for much of the prism path length, power levels may be significantly reduced at typical failure points. Light efficiency may be increased significantly when using discrete light sources like LEDs and lasers by removal of the additional red, green, and blue separation and re-combination losses.

US Patent:

20170371167, Dec 28, 2017

Filed:

Dec 23, 2015

Appl. No.:

15/540962

Inventors:

- San Francisco CA, US
Nathan WAINWRIGHT - Plano TX, US
Douglas J. GORNY - Pacifica CA, US
Martin J. RICHARDS - Gig Harbor WA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G02B 27/09
G02B 27/30
G02B 6/04
G03B 21/20
G02B 5/02
G02B 7/182
G02B 6/32
H04N 9/31
G03B 21/00
G03B 21/28
G02B 26/10

Abstract:

Discrete light fiber inputs for high powered image projector display systems are disclosed herein. Various embodiments disclosed herein may employ a bundle of light fiber inputs, a diffuser and reducing relay optic to convert the fiber input array into a smaller pattern of spots that may be interfaced to a projector display system that may perform light recycling. Many embodiments herein may facilitate higher power laser light for illumination and, possibly, recycling. In these embodiments, laser fibers may be individually collimated and illuminate a diffuser. The diffuser spots may be then imaged through a common path relay that can be resized to allow room for the individual lasers and collimation lenses. The diffuser spots may be imaged through holes in a mirror that is on the input side of an integration rod which recycles the light.

US Patent:

20170371168, Dec 28, 2017

Filed:

Dec 23, 2015

Appl. No.:

15/540994

Inventors:

- San Francisco CA, US
Nathan WAINWRIGHT - Plano TX, US
Douglas J. GORNY - Pacifica CA, US
Martin J. RICHARDS - Gig Harbor WA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

G02B 27/09
G03B 21/20
G02B 19/00
H04N 9/31
G02B 27/28
G03B 21/28
G03B 21/00

Abstract:

Integrating rod modules are disclosed comprising a plurality of single and/or solid integrating rods that are mated together by straps. Such modules tend to comprise a greater length than the single and/or solid integrating rods and provide good illumination to a modulator that light from a light source is transmitted through the integrating rod module. The straps may comprise a material (e.g., glass) that has substantially same or similar thermal characteristics as the integrating rods. The straps may be glued to the integrating rods by a glue having a substantially different (e.g., lower) index of refraction than the integrating rods, so as not to disturb the internal reflectance of the rods. The straps may be reinforced by braces that may allow the integrating rod module to be set within a projection display system at an angle substantially different from horizontal.

US Patent:

20160261832, Sep 8, 2016

Filed:

Oct 29, 2014

Appl. No.:

15/032612

Inventors:

- San Francisco CA, US
Douglas J. DARROW - Frisco TX, US
Craig TODD - Mill Valley CA, US
Martin J. RICHARDS - Redwood City CA, US

Assignee:

DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA

International Classification:

H04N 9/31
G02B 27/28
G03B 21/20

Abstract:

Projector display systems comprising a light dimmer and first modulator are disclosed. The light dimmer may comprise an adjustable iris, adjustable light sources and/or LCD stack that is capable of lowering the luminance of the light source illuminated the first modulator. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the light dimmer and first modulator. The display system may render a desired dynamic range for rendering a projected image by a combination of such control signals.