Raymond T Perkins

US Patent:

6447120, Sep 10, 2002

Filed:

May 21, 2001

Appl. No.:

09/862183

Inventors:

Douglas P. Hansen - Spanish Fork UT
Raymond T. Perkins - Orem UT
Eric Gardner - Provo UT

Assignee:

Moxtex - Orem UT

International Classification:

G03B 2114

US Classification:

353 20, 359486

Abstract:

An image projection system has a wire grid polarizing beam splitter which functions as both the polarizer and the analyzer in the system. A light source produces a source light beam directed at the beam splitter which reflects one polarization and transmits the other. A liquid crystal array is disposed in either the reflected or transmitted beam. The array modulates the polarization of the beam, encoding image information thereon, and directs the modulated beam back to the beam splitter. The beam splitter again reflects one polarization and transmits the other so that the encoded image is either reflected or transmitted to a screen. The beam splitter can be an embedded wire grid polarizer with an array of parallel, elongated, spaced-apart elements sandwiched between first and second layers. The elements form a plurality of gaps between the elements which provide a refractive index less than the refractive index of the first or second layers.

US Patent:

6666556, Dec 23, 2003

Filed:

Sep 9, 2002

Appl. No.:

10/238996

Inventors:

Douglas P. Hansen - Spanish Fork UT
Raymond T. Perkins - Orem UT
Eric Gardner - Eagle Mountain UT

Assignee:

Moxtek, Inc - Orem UT

International Classification:

G03B 2114

US Classification:

353 20, 353 31

Abstract:

An image projection system includes one or more wire grid polarizing beam splitters and one or more transmissive arrays. A polarized light beams from a light source and pre-polarizer is directed towards the transmissive array which modulates the polarization of the polarized light beam by selectively altering the polarization of the polarized light beam to encode image information thereon and creating a modulated beam. The modulated beam is directed towards the wire grid polarizing beam splitter which acts as an analyzer to separate the modulated beam into reflected and transmitted beams. A screen is disposed in one of the reflected or transmitted beams to display the encoded image information. The polarizing beam splitter is oriented at an angle with respect to the modulated beam such that the reflected beam is directed away from the transmissive array. A plurality of transmissive arrays can be used for different colors.

US Patent:

6785050, Aug 31, 2004

Filed:

May 9, 2002

Appl. No.:

10/143501

Inventors:

Michael Lines - Provo UT
Raymond T. Perkins - Orem UT

Assignee:

Moxtek, Inc. - Orem UT

International Classification:

G02B 530

US Classification:

359486, 359489, 359352

Abstract:

A polarizing device, such as a wire-grid polarizer, includes a substantial mono-layer of a corrosion inhibitor without adversely affecting the optical properties of the polarizing device. The polarizing device can include an optical element and a nano-structure, such as an array of a plurality of spaced-apart, elongated elements disposed on a substrate. The corrosion inhibitor is chemically bonded to surfaces of the elements to form the mono-layer. The mono-layer can have a thickness less than 100 Angstroms. A method of forming the substantial mono-layer can include treating the polarizing device with an amino phosphonate, such as a nitrilotris (methylene) triphosphonic acid.

US Patent:

7306338, Dec 11, 2007

Filed:

Mar 8, 2005

Appl. No.:

11/075841

Inventors:

Douglas P. Hansen - Spanish Fork UT, US
Raymond T. Perkins - Orem UT, US
Eric W. Gardner - Provo UT, US

Assignee:

Moxtek, Inc - Orem UT

International Classification:

G03B 21/14

US Classification:

353 20

Abstract:

An image projection system has a wire grid polarizing beam splitter which functions as both the polarizer and the analyzer in the system. A light source produces a source light beam directed at the beam splitter which reflects one polarization and transmits the other. A liquid crystal array is disposed in either the reflected or transmitted beam. The array modulates the polarization of the beam, encoding image information thereon, and directs the modulated beam back to the beam splitter. The beam splitter again reflects one polarization and transmits the other so that the encoded image is either reflected or transmitted to a screen. The wire grid polarizing beam splitter is capable of being oriented at various incident angles with respect to the source light beam and modulated beam, and accepts relatively divergent light.

US Patent:

7375887, May 20, 2008

Filed:

Nov 24, 2004

Appl. No.:

10/997077

Inventors:

Douglas P. Hansen - Spanish Fork UT, US
Raymond Perkins - Orem UT, US
Jim Thorne - Provo UT, US
Eric Gardner - Provo UT, US

Assignee:

Moxtek, Inc. - Orem UT

International Classification:

G02B 5/30

US Classification:

359486, 359489, 362 19

Abstract:

An optical system and method for providing a visible light beam with a desired characteristic includes a visible light source producing a visible light beam defining an optical train. An optical element is disposed in the optical train to create a modified beam, and that is capable of introducing an undesired characteristic that continuously transitions across at least a portion of the modified beam. A wire-grid polarizer is disposed in the optical train, and has a plurality of elongated elements with at least a portion that continuously transitions to a different characteristic. The wire-grid polarizer is positioned and oriented in the optical train with the different characteristic corresponding to the undesired characteristic of the modified beam to obtain a visible light beam with a desired characteristic substantially across the visible light beam.

US Patent:

7570424, Aug 4, 2009

Filed:

Dec 6, 2004

Appl. No.:

11/005927

Inventors:

Raymond T. Perkins - Orem UT, US
Cheng-Yuan Cheng - Chandler AZ, US
Douglas P. Hansen - Spanish Fork UT, US
Eric W. Gardner - Eagle Mountain UT, US

Assignee:

Moxtek, Inc. - Orem UT

International Classification:

G02B 5/30

US Classification:

359486, 359495, 359576

Abstract:

A multilayer wire-grid polarizer for polarizing light includes a stack of thin film layers disposed over a substrate, including a wire-grid array of elongated metal elements having lengths longer than a wavelength of the light and a period less than half the wavelength of the light. One of the layers can include a thin film layer with a refractive index greater than a refractive index of the substrate. One of the thin film layers can include a dielectric array of non-metal elements.

US Patent:

7630133, Dec 8, 2009

Filed:

Jan 31, 2007

Appl. No.:

11/669765

Inventors:

Raymond T. Perkins - Orem UT, US

Assignee:

Moxtek, Inc. - Orem UT

International Classification:

G02B 5/30
G02B 27/28
G02B 5/18

US Classification:

359486, 359495, 359500, 359569, 359575, 359576

Abstract:

An inorganic, dielectric grid polarizer includes an optical stack with a diffraction grating and an inorganic, dielectric grid polarizer. The inorganic, dielectric grid polarizer includes a stack of film layers with an array of parallel ribs in accordance with Pλ/2 where Pis the period of the ribs.

US Patent:

7709820, May 4, 2010

Filed:

May 21, 2008

Appl. No.:

12/124917

Inventors:

Keith W. Decker - Pleasant Grove UT, US
Mike Lines - Cedar Hills UT, US
Degao Xu - Provo UT, US
Raymond Perkins - Orem UT, US

Assignee:

Moxtek, Inc. - Orem UT

International Classification:

H01J 37/252

US Classification:

2505051, 250310

Abstract:

A window for a radiation detection system includes a frame with an aperture therein configured to receive radiation therethrough. A plurality of silicon ribs span the aperture and are carried by the frame. A coating substantially envelopes each of the plurality of silicon ribs. A thin film covers the aperture and is carried by the plurality of silicon ribs and is configured to pass radiation therethrough.