Raymond K Kostuk

US Patent:

20130258429, Oct 3, 2013

Filed:

Sep 23, 2011

Appl. No.:

13/825744

Inventors:

Raymond K. Kostuk - Tucson AZ, US
Jose M. Castro - Naperville IL, US
Johnathan W. Brownlee - Tucson AZ, US

Assignee:

The Arizona Board of Regents on Behalf of the University of Arizona - Tucson TX

International Classification:

G03H 1/08
G03H 1/26

US Classification:

359 9, 359 22

Abstract:

A confocal rainbow holographic imaging system and hologram fabrication method. The system employs a multi-spectral light source, a multiple grating volume hologram and a dual pass illumination and imaging pathway which provide for depth sectioning of an object, coverage of the full FOV of the system, and high lateral and depth resolution. Dual matched holograms are used to provide a high image contrast ratio. A method for fabricating the holograms employ a novel combination of design tools is also provided.

US Patent:

20120307326, Dec 6, 2012

Filed:

Oct 8, 2010

Appl. No.:

13/500467

Inventors:

George Barbastathis - Boston MA, US
Yuan Luo - Taipei, CN
Raymond K. Kostuk - Tucson AZ, US
Jennifer K. Barton - Tucson AZ, US

Assignee:

The Arizona Board of Regents on Behalf of the University of Arizona - Tucson AZ
MASSACHUSETTS INSTITUTE OF TECHNOLOGY - Cambridge MA

International Classification:

G02B 5/32

US Classification:

359 15

Abstract:

A volume holographic imaging system, apparatus, and/or method enables the projection of a two-dimensional (2D) slice of a four-dimensional (4D) probing object A 4D probing source object is illuminated to emit or scatter an optical field A holographic element having one or more recorded holograms receives and diffracts the optical field into a diffracted plane beam having spectral information A 4-ftelecentπc relay system includes a pupil filter on the relayed conjugate plane of the volume hologram and images the pupil of the volume hologram onto the front focal plane of the collector lens A collector lens focuses the diffracted plane beam to a 2D slice of the 4D probing source object The focused 2D slice is projected onto a 2D imaging plane The holographic element may have multiple multiplexed holograms that are arranged to diffract light from the corresponding slice of the 4D probing source object.

US Patent:

20200350452, Nov 5, 2020

Filed:

Jan 25, 2018

Appl. No.:

16/481404

Inventors:

- Tucson AZ, US
Raymond K. Kostuk - Tucson AZ, US

International Classification:

H01L 31/054

Abstract:

The present disclosure describes a solar system comprising a bi-facial photo-voltaic module comprising one or more solar cells disposed adjacent a transparent encapsulant, the bifacial photo-voltaic module disposed in a substantially vertical configuration relative to a horizon and a holographic optical element disposed adjacent an end of the bi-facial photo-voltaic module, the holographic optical element configured to direct incident light toward one or more surfaces of the bi-facial photo-voltaic module.

US Patent:

20190393832, Dec 26, 2019

Filed:

Jun 8, 2016

Appl. No.:

15/735639

Inventors:

- Tucson AZ, US
Raymond K Kostuk - Tucson AZ, US
Zachary Holman - Phoenix AZ, US
Brian M Wheelwright - Tucson AZ, US

Assignee:

THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA - Tucson AZ

International Classification:

H02S 40/22
H01L 31/078

Abstract:

A solar PV module is disclosed having two types of laterally-separated coplanar cells with different bandgaps to improve conversion efficiency. A diffracting entrance window directs sunlight with wavelengths shorter than a separation 5 wavelength ks is directed largely to the first type of wider bandgap cells. Sunlight with wavelengths longer than a separation wavelength ks is directed largely to the second type of narrower bandgap cells. The separation wavelength is chosen so that each cell is illuminated largely by that part of the solar spectrum to which it has the higher conversion efficiency, resulting in an overall conversion efficiency higher than 10 for either type of cell used alone. The wider bandgap cells are configured on a planar support in separated parallel strips, with the narrower bandgap cells largely filling the area between these strips.