David G Fish

US Patent:

20110181757, Jul 28, 2011

Filed:

Jan 18, 2011

Appl. No.:

12/930800

Inventors:

David E. Fish - Littleton CO, US
Jason M. Eichenholz - Orlando FL, US

Assignee:

Ocean Thin Films, Inc. - Largo FL

International Classification:

H04N 5/262

US Classification:

348239, 348E05053

Abstract:

This disclosure describes an apparatus and method of multi-spectral imaging to obtain and analyze information contained in the spectral distribution (reflection, absorption, or emission) of components within the image. The spectral information is captured in a series of images from differing spectral regions. This series of images are then combined into a composite image using re-colorization and image stabilization algorithms for display in real time. The process can be repeated continuously allowing spectral changes over time to be captured and analyzed. In the alternative one sequence of images can be captured for use as a still image.

US Patent:

20130038782, Feb 14, 2013

Filed:

Jul 27, 2012

Appl. No.:

13/559697

Inventors:

DAVID E. FISH - LITTLETON CO, US
EMIL JANICEK - WESTMINSTER CO, US

Assignee:

OCEAN THIN FILMS, INC. - LARGO FL

International Classification:

H04N 5/225

US Classification:

348360, 348E0509

Abstract:

This disclosure describes a method of improving filter wheel imaging data capture and other functionality through use of an improved filter wheel design with pie shaped filter segments, continuously rotating image capture, multiple filtered images, and easily removable and attachable filter segments.

US Patent:

60925191, Jul 25, 2000

Filed:

Mar 11, 1999

Appl. No.:

9/266669

Inventors:

David J. Fish - Missouri City TX
Brian H. Welker - Sugar Land TX

Assignee:

Welker Engineering Company - Sugar Land TX

International Classification:

F24J 100

US Classification:

12626301

Abstract:

A case for heating sample containers during transport, where the case has a housing that containing thermal insulation and a disposable heating material that generates heat by chemical reaction with oxygen. Closeable apertures allow control over the access of oxygen to the heating material, and thereby over the rate of reaction. A method of portably heating a sample cylinder is also disclosed.

US Patent:

20200301240, Sep 24, 2020

Filed:

Mar 19, 2019

Appl. No.:

16/358529

Inventors:

Michael Ziemkiewicz - Lakewood CO, US
Michael Howard Anderson - Lyons CO, US
Tyler Adam Dunn - North Reading MA, US
David Edward Fish - Littleton CO, US
Scott Dennis Rommel - Lakewood CO, US
Andrew William Sparks - Arlington MA, US
Scott Robert Davis - Denver CO, US

International Classification:

G02F 1/295

Abstract:

A Liquid Crystal Waveguide (LCW) system can provide sub-aperture incoupling or outcoupling of light having an input wavelength and input beamsize defining an aperture characteristic of the system. A Liquid Crystal Waveguide (LCW) can include a generally planar LCW core to receive light via a light input zone for communication toward a light output zone. Sub-aperture interfacial light couplers can be planarly arranged in or parallel to the planar LCW core in the light input zone or the light output zone. Sub-aperture interfacial light couplers can include teeth, prisms, or facets, a photonic crystal metasurface, or a geometric-phased holograph (GPH)). Overall LCW thickness can be reduced, which can be helpful in space-limited applications or for reducing material costs.