DANIEL STERN
Engineers in Berwyn, PA
License number
Pennsylvania PE017447E
Category
Engineers
Type
Professional Engineer
Address
Address
Berwyn, PA 19312
Professional information
Moiré Deflectometer Including Non-Mechanical, Transparent, Spatial Light Modulators For Demonstrating Two-Axis Rulings
US Patent:
7119911, Oct 10, 2006
Filed:
Mar 7, 2003
Appl. No.:
10/382585
Inventors:
Dale R. Tyczka - Collegeville PA, US
Alvin B. Cabato - Plymouth Meeting PA, US
Daniel Stern - Berwyn PA, US
Alvin B. Cabato - Plymouth Meeting PA, US
Daniel Stern - Berwyn PA, US
Assignee:
LSA, Inc. - Arlington VA
International Classification:
G01B 11/24
US Classification:
356603, 356605
Abstract:
A Moiré deflectometer includes at least three non-mechanical, transparent, spatial light modulators for demonstrating two sets of patterns on two parallel planes on two of the modulators thereby creating a Moiré fringe pattern and a method for using the same. More particularly, each of the spatial light modulators may be a liquid crystal display, an electrochromic device, a micromirror array, a microlouvre array, an electro-optic device, or a holographic device.