Liquid crystal devices especially for use in liquid crystal point diffraction interferometer systems
- Rochester, NY
Liquid crystal point diffraction interferometer (LCPDI) systems that can provide real-time, phase-shifting interferograms that are useful in the characterization of static optical properties (wavefront aberrations, lensing, or wedge) in optical elements or dynamic, time-resolved events (temperature fluctuations and gradients, motion) in physical systems use improved LCPDI cells that employ a "structured" substrate or substrates in which the structural features are produced by thin film deposition or photo resist processing to provide a diffractive element that is an integral part of the cell substrate(s). The LC material used in the device may be doped with a "contrast-compensated" mixture of positive and negative dichroic dyes.
- Research Organization:
- The University of Rochester (Rochester, NY)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC03-92SF19460
- Assignee:
- The University of Rochester (Rochester, NY)
- Patent Number(s):
- 7,492,439
- Application Number:
- 10/945,753
- OSTI ID:
- 988293
- Country of Publication:
- United States
- Language:
- English
Recent advances in the development of phase-shifting liquid crystal interferometers for visible and near-IR applications
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conference | November 2003 |
Liquid-crystal point-diffraction interferometer for wave-front measurements
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journal | January 1996 |
Liquid-crystal point-diffraction interferometer
|
journal | January 1994 |
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