Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1996-08-01
1998-08-04
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
250216, 348302, H01L 2700
Patent
active
057897360
ABSTRACT:
A focal plane array having unit cells 1 is arranged in two-dimensional array in the directions of rows and columns. Each of the unit cells 1 has a photo detection element 3 and a column selection transistor 4. A plurality of signal readout lines 5 run across the unit cells in the direction of rows. A column selection line 6 runs across the unit cells in the direction of columns to control a conductivity state of the column selection transistor 4. A first shift register 7 is connected with the column selection line 6. A charge integration capacitor 9 and a row selection transistor 11 are connected with the signal readout line 5 through a direct injection gate transistor 8. A second shift register 12 controls a conductivity state of the row selection transistor 11. A reset transistor 14 charges the charge integration capacitor 9. Exchange switches 10 switch by time division the plurality of the signal readout lines 5 to a signal output line 13 for external output.
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patent: 4996413 (1991-02-01), McDaniel et al.
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Ballingal et al., "Practical Design Consideration in Achieving High Performance from Infrared Hybrid Focal Plane Arrays", SPIE, vol. 819, Infrared Technology XIII, 1987, pp. 224-231.
Dennis et al., "Staring Arrays--the future lightweight imagers", SPIE, vol. 572, Infrared Technology XI, 1985, pp. 22-27.
Ballingal et al., "Two Dimensional Infrared Focal Plane Arrays Utilising a Direct Inject Input Scheme", SPIE, vol. 685 Infrared Technology XII, 1986, pp. 115-122.
Allen Stephone B.
NEC Corporation
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