Zhong Pei M Zhao, 61288 Camellia Way, Vista, CA 92083

2009026, Oct 22, 2009

Feb 17, 2009

12/378600

Steve Melnychuk - Carlsbad CA, US
William Foote - Poway CA, US
Zhong Quan Zhao - San Diego CA, US
Fritz (Cornelius) Moore - San Diego CA, US

F41G 5/08
G06F 19/00

89 111, 235412

A projectile tracking system for acquiring and precisely tracking a projectile in flight in order to reveal the source from which the projectile was fired. The source is revealed by the back projection of a 3-dimensional track file. In preferred embodiments the system is installed on a vehicle, such as an un-manned blimp or other aircraft, road vehicle or ship, for locating and destroying small arms fire directed at the vehicle. A kill system may also be included on the vehicle to destroy the source of the projectile.

2022039, Dec 8, 2022

Oct 14, 2020

17/765193

- San Diego CA, US
Zhong Quan Zhao - San Diego CA, US
Hong Ye - San Diego CA, US

H01S 3/00
G02B 17/00
G02B 27/14
G03F 7/20

An extended optical pulse stretcher is provided that combines confocal pulse stretchers in combination to produce, for example, 4 reflections, 4 reflections, 12 reflections, and 12 reflections per optical circuit configuration. The inclusion of the combination of different mirror separations and delay path lengths can result in very long pulse stretching, long optical delays, and minimal efficiency losses. Also, in the extended optical pulse stretcher, at least a beam splitter can be positioned relative to the center of curvature of the mirrors to “flatten” each of the circuits to enable the beam to propagate in the same plane (e.g., parallel to the floor). Also, the curvatures and sizes of the individual mirrors can be designed to position the beam splitter closer to one of the banks of mirrors to allow the optical pulse stretchers to properly fit in an allocated location in a laser system.

2023000, Jan 12, 2023

Dec 9, 2020

17/783351

- San Diego CA, US
Zhong Quan Zhao - San Diego CA, US

G03F 7/20
H01L 21/027
H01S 3/00
H01S 3/034
H01S 3/139

A light source apparatus includes a gas discharge stage, a sensing apparatus, an optical arrangement, an adjustment apparatus, and a control apparatus. The gas discharge stage includes an optical amplifier including a chamber configured to hold a gas discharge medium outputting a light beam, and a set of optical elements configured to form an optical resonator around the optical amplifier. The optical arrangement is configured to image light from a plurality of distinct object planes within the gas discharge stage onto the sensing apparatus. The adjustment apparatus is in physical communication with one or more optical components within the gas discharge stage and is configured to modify at least one geometric aspect of the optical components. The control apparatus is communication with the sensing apparatus and the adjustment apparatus and is configured to provide a signal to the adjustment apparatus based on an output from the sensing apparatus.