Johannes M. M. Beltman

Follow

Person

Veldhoven, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Imaging apparatus having a focus-error and/or tilt detection device
- Patent number 5,191,200
- Issue date Mar 2, 1993
- U.S. Philips Corp.
- Jan E. van der Werf
- G02 - OPTICS