STEPHEN LEE CUNNINGHAM
Pilots at Gln Cyn Rd, Altadena, CA
License number
California A0415639
Issued Date
Sep 2015
Expiration Date
Sep 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
2306 Glen Canyon Rd, Altadena, CA 91001
Professional information
Slab Laser And Amplifier
US Patent:
2013030, Nov 14, 2013
Filed:
Aug 3, 2012
Appl. No.:
13/566144
Inventors:
Martin A. Stuart - Burbank CA, US
Stephen L. Cunningham - Altadena CA, US
Stephen L. Cunningham - Altadena CA, US
International Classification:
H01S 3/04, H01S 3/10
US Classification:
372 5, 372 9
Abstract:
An economical slab laser for high power applications. The laser is a lamp driven slab design with face-to-face beam propagation and an end reflection that redirects the amplified radiation back out the input surface. Also presented is a side-to-side larger amplifier configuration, permitting very high average and peak powers due to the electrical efficiency of converting and getting energy into the crystal, optical extraction efficiency, and scalability of device architecture. Cavity filters adjacent to pump lamps convert the unusable UV portion of the pump lamp spectrum into light in the absorption band of the slab laser thereby increasing the overall pump efficiency. The angle of the end reflecting surface is changed to cause the exit beam to be at a different angle than the inlet beam, thereby eliminating the need to separate the beams external to the laser with the subsequent loss of power.
Oscillating Piston Engine
US Patent:
2011023, Oct 6, 2011
Filed:
Mar 29, 2011
Appl. No.:
13/074510
Inventors:
Stephen Lee Cunningham - Altadena CA, US
Martin A. Stuart - Burbank CA, US
Martin A. Stuart - Burbank CA, US
International Classification:
F02B 53/00
US Classification:
123245
Abstract:
An engine configuration that places multiple pistons on one or two oscillating discs. The engine can be configured to operate as an internal combustion engine that uses diesel fuel, gasoline, or natural gas, or it can be configured as an expander to convert high pressure high temperature gas to rotary power. For any given set of choices of numbers of pistons and sizes of pistons, disks, and gears, there are disclosed dimensional constraints useful for more efficient functioning of the engine. This engine is especially suited as a driver for electrical power generation as it delivers high torque at low engine speeds, among other uses. Its compact design results in high power to weight ratios.