Light emitting diode array

Details Light emitting diode array Light emitting diode array

1990-04-24

1991-08-06

Hille, Rolf

357 30, 357 32, 357 68, H01L 3300

Patent

active

050381865

ABSTRACT:
In an LED array (100), opaque layer (38) is provided on a semiconductor body (30) having PN junctions (41). A through holes (40) having a relatively small diameter are formed in the opaque layer on the PN junctions. Light which is generated at the PN junctions is emitted only through the holes in the form of photobeams. The LED array can be used in an electronic printer for photography without a self-focus lens array.

REFERENCES:
patent: 4801994 (1989-01-01), Van Gorkom et al.
Marinace, "Electroluminescent Diode", IBM Technical Disclosure Bulletin, vol. 11, No. 11, 4/1969.
Berkenblit et al., "Fabricating Light Emitting Diodes", IBM Technical Disclosure Bulletin, vol. 13, No. 6, 11/70.
Eisenmann et al., "Polymer Field Stop for Electrooptic Device", IBM Tech. Disc. Bull., vol. 17, No. 3, 8/74.

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