Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1991-09-24
1993-08-24
Dzierzynski, Paul M.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250339, 250353, H01L 310232
Patent
active
052391795
ABSTRACT:
In an infrared detector device for viewing an object or scene at more than one wavelength, the detector elements (10 and 20) are optimized to have appropriately different infrared responses by being formed in accordance with the invention in different levels (1 and 2) of different material on a substrate (3). Infrared concentrators (55) such as immersion lenses, light-pipes and/or reflectors collect incident radiation (50) over an area larger than the active portion of the associated detector element (10 and/or 20) and concentrate the radiation (50) onto the active portions. The arrangement adopted in accordance with the invention provides adequate space for at least one connection (15) of each upper-level detector element (10) to extend to the substrate (3) through an area of the lower level (2) which is located between the lower-level active portions on which the radiation (50) is concentrated by the associated concentrators (55). This upper-level connection (15) may extend via an island (28) separated from the active portions ( 22,23) of the lower level (2) by a gap (40), or it may extend on a side-wall of the lower-level detector element (20) when this side-wall is insulated or separated by a p-n junction from the active portions of the detector element (20). The different-response elements (10 and 20) may be arranged one above the other or one between the others when viewed in plan view.
REFERENCES:
patent: 4555720 (1985-11-01), Readhead
patent: 4625389 (1986-12-01), Readhead
patent: 4754139 (1988-06-01), Ennulat et al.
"Applied Optics and Optical Engineering" vol. II, Edited by R. Kingslake pp. 352-355 (1965).
Botjer William L.
Dzierzynski Paul M.
Hanig Richard
U.S. Philips Corp.
LandOfFree
Infrared detector devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Infrared detector devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared detector devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-831059