Kevin Winfrey Curtis

US Patent:

6885510, Apr 26, 2005

Filed:

Mar 11, 2004

Appl. No.:

10/797075

Inventors:

Jan Hoogland - Dana Point CA, US
Kevin Curtis - Longmont CO, US

Assignee:

InPhase Technologies, Inc. - Longmont CO

International Classification:

G02B009/04

US Classification:

359793, 359 30, 359754, 359796

Abstract:

Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a two-component design. The lenses can be used to both record to photorefractive storage media and to read from photorefractive storage media.

US Patent:

7180644, Feb 20, 2007

Filed:

Sep 19, 2002

Appl. No.:

10/246737

Inventors:

Jan Hoogland - Dana Point CA, US
Kevin Curtis - Longmont CO, US

Assignee:

Inphase Technologies, Inc. - Longmont CO

International Classification:

G03H 1/00

US Classification:

359 30, 359 29, 359793, 359754

Abstract:

Disclosed are holographic storage systems and lenses for holographic storage systems. The lens units can be of a two-component design. The lenses can be used to both record to photorefractive storage media and to read from photorefractive storage media.

US Patent:

62314645, May 15, 2001

Filed:

Jun 3, 1998

Appl. No.:

9/089906

Inventors:

Kevin D. Curtis - Upland CA

International Classification:

A63B 6900

US Classification:

473458

Abstract:

Described herein is a training device and methods of use thereof for helping a baseball batter keep both hands on the bat while swinging at a ball, thus training the batter to swing with more power, better bat control, and better discipline in taking (i. e. not swinging at) bad pitches. The device includes a right wristband and a left wristband connected by a knuckle cover which covers a portion of the batter's knuckles. The device may also include a finger strap to further ensure that the device does not rotate around the wrist or hands and become improperly positioned across the knuckles.

US Patent:

54833655, Jan 9, 1996

Filed:

May 10, 1994

Appl. No.:

8/241163

Inventors:

Allen Pu - Pasadena CA
Kevin Curtis - Pasadena CA
Demetri Psaltis - Pasadena CA

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

G03H 112
G03H 110
G11B 700

US Classification:

359 11

Abstract:

A peristrophic multiplexing system directs a signal light beam and reference light beam onto a selected recording spot in the recording medium. The light beams collectively define a plane of interaction. Either the recording medium or the signal/reference beam are rotated relative to the other through a succession of peristrophic multiplexing angles. Those angles cause relative rotation about an axis that is not perpendicular to the plane of selectivity. The rotation occurs contemporaneously with the modulating of the hologram on the medium.

US Patent:

20230018744, Jan 19, 2023

Filed:

Sep 22, 2022

Appl. No.:

17/950986

Inventors:

- Plantation FL, US
Pierre St. Hilaire - Belmont CA, US
Hui-Chuan Cheng - Cooper City FL, US
Clinton Carlisle - Parkland FL, US
Michael Anthony Klug - Austin TX, US
Kevin Richard Curtis - Boulder CO, US

International Classification:

G03B 21/20
G02B 27/01
G06V 40/19
G02B 26/10
G02B 27/10
G02B 27/09
G03B 21/00
G06V 20/20

Abstract:

A beamsplitter can include a first surface with a diffractive optical element, a second surface normal to the first surface, and a beam splitting surface arranged at an angle to the second surface that is less than 45 degrees. The beamsplitter may be configured to illuminate the entire second surface in response to an input beam at the first surface.

US Patent:

20210109433, Apr 15, 2021

Filed:

Dec 22, 2020

Appl. No.:

17/131373

Inventors:

- Plantation FL, US
Pierre St. Hilaire - Belmont CA, US
Hui-Chuan Cheng - Cooper City FL, US
Clinton Carlisle - Parkland FL, US
Michael Anthony Klug - Austin TX, US
Kevin Richard Curtis - Boulder CO, US

International Classification:

G03B 21/20
G02B 27/10
G03B 21/00
G02B 27/09
G02B 27/01
G02B 26/10
G06K 9/00

Abstract:

Examples of light projector systems and methods of use. A method can include providing an optical device having a first surface, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface can be reflective to light of a first state and transmissive to light of a second state. An input beam having the first state can be normally incident on the first surface. A transmissive diffractive optical element on the first surface can convert the input beam into at least a first diffracted beam directed toward the third surface, where it is reflected by the third surface in a direction substantially parallel to the first surface. The reflected first diffracted beam can be modulated with image information using a spatial light modulator to produce a modulated light beam having the second state.

US Patent:

20200209727, Jul 2, 2020

Filed:

Jan 8, 2020

Appl. No.:

16/737728

Inventors:

- Plantation FL, US
Pierre St. Hilaire - Belmont CA, US
Hui-Chuan Cheng - Cooper City FL, US
Clinton Carlisle - Parkland FL, US
Michael Anthony Klug - Austin TX, US
Kevin Richard Curtis - Boulder CO, US

International Classification:

G03B 21/20
G02B 27/09
G03B 21/00
G02B 27/10
G06K 9/00
G02B 26/10
G02B 27/01

Abstract:

Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and may convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the second surface, is reflected by the second surface toward the third surface via total internal reflection, and is reflected by the third surface in a direction substantially parallel to the first surface.

US Patent:

20180284585, Oct 4, 2018

Filed:

Mar 21, 2018

Appl. No.:

15/927807

Inventors:

- Plantation FL, US
Pierre St. Hilaire - Belmont CA, US
Hui-Chuan Cheng - Cooper City FL, US
Clinton Carlisle - Parkland FL, US
Michael Anthony Klug - Austin TX, US
Kevin Richard Curtis - Boulder CO, US

International Classification:

G03B 21/20
G02B 27/10
G02B 27/09
G03B 21/00
G06K 9/00

Abstract:

Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the third surface and is reflected by the third surface in a direction substantially parallel to the first surface.