Bradley J Nelson

US Patent:

8542270, Sep 24, 2013

Filed:

Mar 9, 2010

Appl. No.:

12/720099

Inventors:

Bradley Nelson - Castaic CA, US

International Classification:

H04N 13/04

US Classification:

348 58

Abstract:

A three dimensional (3D) stereoscopic display system using large format light emitting diodes (LEDs) for displaying 3D image content. The apparatus comprises a grid of LEDs covered by two sheets of polarizing material, a first sheet of polarizing material for polarizing a first subset of the LEDs to form a first view of the 3D image, and a second sheet of polarizing material for polarizing the second subset of LEDs to form a second view of the 3D image. The sheets may be formed by cutting a plurality of openings substantially aligned with a corresponding subset of LEDs. For improved viewing, the apparatus may further comprise a rear diffuser, disposed between the LED display and the first sheet of polarizing material. Also for improved viewing, the apparatus may further comprise a front diffuser, disposed in front of the second sheet of polarizing material, for reducing glare from external light sources. Also an additional method of the application of individual polarizing buttons directly adhered to the individual LEDs incorporating an assembly key for maintaining the correct orientation of the polarizing material.

US Patent:

20110063575, Mar 17, 2011

Filed:

Jun 17, 2010

Appl. No.:

12/818007

Inventors:

Bradley Nelson - Castaic CA, US
Lowell A. Noble - Los Gatos CA, US
Mellissa Noble Asmussen - Los Gatos CA, US

International Classification:

G02B 27/22

US Classification:

353 7, 359463

Abstract:

Multiple sets of view channels originate from multiple projected views modulated through an optic assembly comprising a Fresnel lens, a vertical dispersion lenticular lens, and a diffuser. Compact projection enclosures are formed using image-repeating mirrors to create a three-dimensional autostereoscopic viewing experience in free space without the use of special eyeglasses and without the use of view screens. Multiple sets of images are repeated within a viewing zone that may extend well beyond the confines of the enclosure and may be projected through and beyond a glass window. An observer walking past the window will see one view channel per eye, due in part to the repeated images, and due in part to the vertical dispersion of each projected view. Separate images for each view channel may be created by using two or more cameras spaced apart at a distance interval to match the average horizontal distance between the eyes of a human observer. Multiple views or multiple sets of view channels may be generated and projected.

US Patent:

20110080639, Apr 7, 2011

Filed:

Aug 5, 2010

Appl. No.:

12/851530

Inventors:

Bradley Nelson - Castaic CA, US

International Classification:

G02B 27/26
G02B 27/22

US Classification:

359465, 359464

Abstract:

A technique for encoding a three dimensional image formatted according to a three dimensional format is disclosed. The technique employs a surface or surfaces for encoding a three dimensional image to create a left view image and a right view image. The surface or surfaces may include an arrangement of encoding stripes, black ink stripes, and transparent stripes. The stripes may be arranged in a vertical, horizontal, or checkerboard pattern. The black ink stripes may be further arranged in a manner that corrects an angular viewing error. The encoded right view and left view images are decoded by a left lens and a right lens, respectively, of a pair of polarized 3D viewing glasses worn by a viewer.