Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – In combination with or also constituting light responsive...
Patent
1992-03-16
1994-02-08
Mintel, William
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
In combination with or also constituting light responsive...
257 98, 257 99, 257434, 257435, H01L 3112, H01L 3116
Patent
active
052850854
ABSTRACT:
In a photo-coupling device, a light emitting section, a light receiving section are housed in an opaque case so as to be opposed with respect to an object moving path intervening therebetween. The light emitting section and the light receiving section are provided with a light-projecting window and a light-receiving window on their opposite opaque case-wall-surfaces, respectively. A holder for holding the light emitting section or the light receiving section is arranged between the light emitting section and the light-projecting window and/or between the light receiving section and the light-gathering window. A light shading plate having a slit is attached to the holding means, and means for positioning the holder with the aid of the contact of the holding means with the case is attached to the case.
REFERENCES:
patent: 5171985 (1992-12-01), Kawaguchi
Mintel William
Sharp Kabushiki Kaisha
Tran Minhloan
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