NATHANIAL JAMES CZECH
Pilots in Spokane, WA

License number
Washington A5006694
Issued Date
Jun 2013
Expiration Date
Jun 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
PO Box 656, Spokane, WA 99001

Professional information

Nathanial Czech Photo 1

Optics For Concentrated Photovoltaic Cell

US Patent:
2010031, Dec 23, 2010
Filed:
Jun 22, 2009
Appl. No.:
12/489384
Inventors:
Robert Scott West - Pleasanton CA, US
Nathanial James Czech - Airway Heights WA, US
Assignee:
SOLARMATION, INC. - Spokane WA
International Classification:
H01L 31/00
US Classification:
136259
Abstract:
A concentrated photovoltaic (CPV) module includes a CPV cell mounted on a support surface. A primary optical element (POE) is a square Fresnel lens fixed in position over the CPV cell. A secondary optical element (SOE) is optically coupled to the cell for providing uniform light over the surface of the cell. The SOE has a square, sloping top portion and a truncated pyramid shaped bottom portion that tapers toward the cell. The top portion is formed of angled flat square rings that refract light entering the top portion from the POE. The bottom portion mixes the light using TIR. The SOE has an angled middle portion, and an integral support structure having one end attached to the middle portion surrounds the bottom portion and is attached to the cell support surface so there is little mechanical stress on the cell.


Nathanial Czech Photo 2

Photovoltaic Cell Support Structure Assembly

US Patent:
2010032, Dec 30, 2010
Filed:
Jun 30, 2009
Appl. No.:
12/495598
Inventors:
Kia Kuang Tan - Penang, MY
Robert Scott West - Pleasanton CA, US
Nathanial James Czech - Airway Heights WA, US
Edward Nicholas Caferro - Spokane WA, US
Timothy Lee Treto - Spokane WA, US
Wah Sheng Teoh - Penang, MY
Assignee:
SOLARMATION, INC. - Spokane WA
DSEM SYSTEMS TECHNOLOGY SDN. BHD. - Penang
International Classification:
H01L 31/052
US Classification:
136246
Abstract:
A plurality of CPV cells are mounted on a common ALOX™ plate. A copper interconnection layer is deposited over an insulating aluminum oxide surface of the ALOX™ plate. The interconnection layer connects all the CPV cells in series, so no wires are needed. In one embodiment, each CPV cell is mounted on a ceramic submount or an ALOX™ submount having an electrically insulating aluminum oxide layer formed in its bottom surface. Vias through the submount couple the cell electrodes to the copper interconnection pattern on the ALOX™ plate. The ALOX™ plate may be the heat sink or may be bolted or soldered to a separate heat sink. In one embodiment, edges of the ALOX™ plate are bent upwards, and side panels are affixed to the ALOX™ plate to create a box that supports a Fresnel lens that directs sunlight to each of the cells (e.g. nine) mounted on the ALOX™ plate.