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US 5,293,036 AGranted
Radiation detector array having center surround pixel output
AssigneeSanta Barbara Research Center
InventorPaul R. Norton
Life of this patent
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AssigneeSanta Barbara Research Center
InventorPaul R. Norton
Estimating the term…
A backside illuminated array (10) of radiation detectors (12) each of which has an output terminal for expressing a center-surround output signal. The array includes a plurality of the radiation detectors (12) disposed substantially adjacent to a first surface of the array, each of the radiation detectors comprising a central radiation detector (20) having a radiation absorbing area that is substantially surrounded by a radiation absorbing area of an associated peripheral radiation detector (22). The array further includes a transmission grating structure (16) disposed over a second surface (14a) of the array opposite the first surface for diffracting incident radiation for uniformly illuminating associated central and peripheral radiation detectors. The array further includes a plurality of flux concentrating structures (18) interposed between the transmission grating structure and the plurality of radiation detectors. Individual ones of the flux concentrating structures are disposed in registration with an individual one of the radiation detectors for concentrating incident optical radiation upon the central radiation detector thereof.
A radiation detector having an output terminal for expressing a center-surround output signal, the radiation detector comprising a first radiation detector having a radiation absorbing area substantially surrounded by a radiation absorbing area of a second radiation detector, an anode of the first radiation detector being electrically coupled to a cathode of the second radiation detector, an anode of the second radiation detector being electrically coupled to a cathode of the first radiation detector and electrically coupled also to the output terminal.
An array of radiation detectors having a radiation receiving first surface and a plurality of radiation detectors disposed upon a second surface opposite the first surface, each of the radiation detectors having an output terminal for expressing a center-surround output signal, each of the radiation detectors comprising a central radiation detector having a radiation absorbing area substantially surrounded by a radiation absorbing area of a peripheral detector, an anode of the central radiation detector being electrically coupled to a cathode of the peripheral radiation detector, an anode of the peripheral radiation detector being electrically coupled to a cathode of the central radiation detector and electrically coupled also to the output terminal thereof.
A backside illuminated array of radiation detectors each of which has an output terminal for expressing a center-surround output signal, the array comprising:
Dependencies are inferred from the claim text.