John William Lawrence

US Patent:

55596320, Sep 24, 1996

Filed:

Sep 7, 1993

Appl. No.:

8/117499

Inventors:

John Lawrence - Los Angeles CA
Linda S. Lukens - Los Angeles CA

International Classification:

G02B 2722
G02C 710

US Classification:

359478

Abstract:

Improved methods for 3-D motion picture, video or video game images with a one camera system. When a scene is photographed using this system to create 3-D, the scene must be lit so that the midground light intensity is approximately 50% greater than the intensity on the foreground and the background light intensity is approximately double that of the foreground with some subjects in the scene being backlit as well. The scene is photographed by a movable video or motion picture camera moving about the scene at a constant angular velocity in the range of 25-60 degrees per second. Additional cameras photograph the scene from fixed locations spaced approximately 120 degrees apart about the scene. When editing the 3-D film or video tape a method is used to alleviate dizziness by inserting approximately 5-40 seconds of the flat shots from said fixed locations between segments of 3-25 seconds of film or video shot by said moving camera and providing viewing glasses having lenses, one of metallized (mirrored) plastic film creating a silvered effect, void of spectral peaks and of color absorption across all wavelengths, and which gives the lens a neutral density in the range of 0. 5 to 2. 0; and one lens formed of clear film which provides 100% light transmission when viewing through it.

US Patent:

59185333, Jul 6, 1999

Filed:

Nov 21, 1997

Appl. No.:

8/975579

Inventors:

John C. Lawrence - South El Monte CA
Mark Lawrence - South El Monte CA
Eric C. Lawrence - South El Monte CA

Assignee:

Lawrence Equipment, Inc. - South El Monte CA

International Classification:

A21C 302
A21C 1104
A21C 1500
A23P 100

US Classification:

99339

Abstract:

A system for making tortillas includes a sheeter, a roller/heater, and an oven. Tortillas are die cut into an oblong shape in the sheeter. The roller/heater rolls the tortillas into a round shape and conductively heats the tortillas simultaneously on the top and bottom surfaces, gelatinizing the food product and sealing in moisture. The tortillas are then baked in an oven. Slot marks on the tortillas are avoided as the roller/heater has upper and lower belts have continuous surfaces.

US Patent:

53743172, Dec 20, 1994

Filed:

Mar 23, 1993

Appl. No.:

8/035914

Inventors:

Walter Lamb - Sunnyvale CA
John Lawrence - Cupertino CA

Assignee:

Energy Systems Solar, Incorporated - Sunnyvale CA

International Classification:

H01L 31052
H01L 31058

US Classification:

136246

Abstract:

Disclosed is a solar electric power system that utilizes multiple reflectors to concentrate sun light onto a panel of photovoltaic (PV) cells. The power system, consisting of multiple reflectors, mounted PV cells, and a heat dissipation component, is mounted on a tracker that keeps the system directed to the sun. A noteworthy feature of this system is its designed-in capability of being retrofitted with advanced reflectors, PV components, and heat dissipation components during the system's multi-year operating life. The common axes design feature of the system allows for low cost materials and manufacturing concepts. The system can operate on either a single or a dual axis tracker with active or passive cooling.

US Patent:

54206260, May 30, 1995

Filed:

Jan 4, 1994

Appl. No.:

8/177255

Inventors:

John Lawrence - Los Angeles CA
Linda S. Lukens - Los Angeles CA

International Classification:

H04N 5222

US Classification:

348 44

Abstract:

An apparatus for optimization of a simulated three-dimensional effect for film or video when constancy of the effect is desired. The apparatus comprises at least one arcuate support rail. A trolley is affixed movably to the support rail. A remotely controlled variable speed motor is affixed to the trolley for moving the trolley along the support rail. A camera mounting is affixed to the trolley and movable horizontally and vertically with respect to the trolley so that a camera is moved at a constant angular velocity relative to a scene to be filmed or recorded. The angular velocity is defined as linear circumferential speed at a specific and constant radius from the scene, the angular velocity being between 25 degrees per second and 65 degrees per second.

US Patent:

49180304, Apr 17, 1990

Filed:

Mar 31, 1989

Appl. No.:

7/332286

Inventors:

Walter R. Lamb - Sunnyvale CA
John E. Lawrence - Cupertino CA

Assignee:

Electric Power Research Institute - Palo Alto CA

International Classification:

H01L 3118

US Classification:

437225

Abstract:

An improved textured surface of a photovoltaic device is provided by an anisotropic etching process in which pyramidal structures are formed on a silicon surface having a (100) crystallographic orientation. An aqueous solution of an alkali metal hydroxide is heated to approximately 85. degree. C. whereupon isopropyl alcohol is added. Separated silicon wafers are immersed in the solution for approximately 45 minutes. The wafers can be agitated for a limited time in the solution, and preferably the wafers and solution are covered during the etching step. The resulting pyramids are on the order of 14 microns high and 20 microns on each side of the base. The overlap of the pyramids provides desired random locations for the pyramids.

US Patent:

52820297, Jan 25, 1994

Filed:

Feb 19, 1991

Appl. No.:

7/624603

Inventors:

John Lawrence - Los Angeles CA
Linda S. Lukens - Los Angeles CA

International Classification:

G03B 1500
H04N 5222

US Classification:

358 89

Abstract:

Apparatus for optimization of a simulated three-dimensional effect for film or video includes at least one arcuate support rail and a trolley carrying a remotely controlled variable speed motor for moving the trolley along the rail. A camera mounting attached to the trolley is moveable horizontally and vertically with respect to the trolley and permits camera movement at a desired constant angular velocity at a specific and constant radius from the scene being recorded.