Optical coupler

Details Optical coupler Optical coupler

1976-03-22

1978-11-07

Edlow, Martin H.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

357 47, 357 49, 357 4, 250551, H01L 3112

Patent

active

041248600

ABSTRACT:
Disclosed is apparatus for effecting optical coupling between at least one photo-emissive device and at least one photo-sensitive device while maintaining electrical isolation between the devices. The light-emitting chip and the photo-sensitive chip are mounted on an electrically insulating substrateor substrates with their major faces in substantially the same plane and facing the same direction. The insulating substrate is mounted on a conventional header and leads attached to each of the active regions by conventional methods. The light emitter and sensor are then encapsulated in a single hemispherical dome of electrically insulating material which is substantially transparent to the operative wavelengths of the electro-optical devices. Optical coupling is accomplished by direct coupling between the edges of the chips and by internal reflection from the surface of the dome.

REFERENCES:
patent: 3304431 (1967-02-01), Biard
patent: 3315176 (1967-04-01), Biard
patent: 3393088 (1968-07-01), Manasevit
patent: 3414434 (1968-12-01), Manasevit
patent: 3480783 (1969-11-01), Mankarinis
patent: 3628039 (1971-12-01), Ochs
patent: 3639770 (1972-02-01), Zizelman

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