Radiant energy – Ionic separation or analysis – Static field-type ion path-bending selecting means
Patent
1988-03-16
1990-02-27
LaRoche, Eugene R.
Radiant energy
Ionic separation or analysis
Static field-type ion path-bending selecting means
250578, 307117, G02F 111
Patent
active
049040677
ABSTRACT:
A selection device for reliable selection of a plurality of lines or of a plurality of contact locations. In order to select at least two of a plurality of lines, at least two selection lines are connected to every line via a photoresistor, whereby every photoresistor is preferably controllably chargeable with light via a deflectable beam. The selection occurs when selected photoresistors are changed to a low resistance state by light impingement. For selecting at least two of a plurality of contact locations arranged in a grid pattern, the contact locations are connected to the lines via photoresistors. The device of the present invention is preferably utilized for the electrical function testing of printed circuit boards.
REFERENCES:
patent: 2813983 (1957-11-01), Hammar
patent: 3191040 (1965-06-01), Critchlow
patent: 3505527 (1970-04-01), Slana
patent: 3666966 (1972-05-01), Buss
patent: 3749970 (1973-07-01), Schmersal
patent: 4124280 (1978-11-01), Berg et al.
patent: 4126834 (1978-11-01), Coppock
patent: 4455485 (1984-06-01), Hosaka
patent: 4509045 (1985-04-01), Lustig
patent: 4600878 (1986-07-01), Doemens et al.
patent: 4639092 (1978-01-01), Gottlieb
patent: 4722596 (1988-02-01), Labrum
IBM Technical Disclosure Bulletin entitled "Membrane Contact Array with Photosensitive Interconnections", vol. 14, No. 11, Apr. 1972.
LaRoche Eugene R.
McCutcheon Nathan W.
Siemens Aktiengesellschaft
LandOfFree
Selection device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selection device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-169731