Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1990-09-13
1992-03-17
Wielder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
324158R, 324158F, 324731, 356364, G01R 3128, G01J 400
Patent
active
050972014
ABSTRACT:
A two-dimensional image of the voltage distribution across a surface at a large plurality voltage test points of a panel under test is extracted by illuminating the surface with an input beam of optical energy through an electro-optic modulator wherein the modulator is disposed to allow longitudinal probing geometries such that a voltage on the surface of the panel under test causes a power modulation in the optical energy which can be observed through an area optical sensor (a camera) for use to directly produce a two-dimensional spatially-dependent power modulation image directly representative of the spatially corresponding voltage state on the surface of the panel under test. Surface crosstalk is minimized by placing the face of the modulator closer to the panel under test than the spacing of voltage sites in the panel under test. The device may operate in a passthrough mode or in a reflective mode.
REFERENCES:
patent: 4523847 (1985-06-01), Bjorklund et al.
patent: 4618819 (1986-10-01), Mourou et al.
patent: 4688900 (1987-08-01), Doane et al.
patent: 4758092 (1988-07-01), Heinrich et al.
patent: 4855591 (1989-08-01), Nakamura et al.
patent: 4862075 (1989-08-01), Choi
patent: 4875006 (1989-10-01), Henley et al.
patent: 4906922 (1990-03-01), Takahashi et al.
patent: 4910458 (1990-03-01), Forsyth et al.
patent: 4944576 (1990-07-01), Lacker et al.
patent: 4983911 (1991-01-01), Henley
Larry Welsh et al., "12.4 NCAP Displays: Optical Switching and Dielectric Properties," SID 90 Digest, pp. 220-223.
Nguyen Vinh P.
Photon Dynamics, Inc.
Wielder Kenneth A.
LandOfFree
Voltage imaging system using electro-optics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Voltage imaging system using electro-optics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage imaging system using electro-optics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1478610