Optoelectronic system housed in a plastic sphere

Details Optoelectronic system housed in a plastic sphere Optoelectronic system housed in a plastic sphere

1987-04-01

1988-11-15

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

73517R, 250229, G01D 534

Patent

active

047851805

ABSTRACT:
An optoelectronic array or system permitting the simultaneous input of six isplacement components is housed in a plastic sphere wherein a fixed slit diaphragm is connected in series to each of six light-emitting devices, which are arrayed in a plane at equal angular displacements from each other. The light-emitting devices are arrayed opposite corresponding linear one-dimensional position-sensitive sensors, whose axes are aligned vertically to the direction of the slits of the corresponding slit diaphragms, so that the light-emitting devices with their corresponding slit diaphragms are adapted to move relative to the position-sensitive sensors. The individual light-emitting device allocated to each sensor is driven by an electronic controller which maintains the sum of both currents flowing in the corresponding position-sensitive sensor constant and equal for all six sub-systems and additionally regulates the radiant intensity of the light-emitting devices.

REFERENCES:
patent: 3814199 (1974-06-01), Jones
patent: 3881106 (1975-04-01), Pocker et al.
patent: 4607159 (1986-08-01), Goodson et al.

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