Henricus G. Koopman

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Display device having wavelength-dependent birefringence compensation
- Patent number 5,157,529
- Issue date Oct 20, 1992
- U.S. Philips Corporation
- Henricus G. Koopman
- G02 - OPTICS
Information Patent Grant
Display cell
- Patent number 4,767,191
- Issue date Aug 30, 1988
- U.S. Philips Corporation
- Hendrik A. Van Sprang
- G02 - OPTICS