Moiré deflectometer including non-mechanical, transparent, spatial light modulators for demonstrating two-axis rulings
US7119911B2 · kind B2 · utility
5Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2003 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Nov 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/254
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.