Keyboard using optical switching

Details Keyboard using optical switching Keyboard using optical switching

1975-12-19

1977-03-22

Corbin, John K.

350 96R, G02B 514

Patent

active

040133427

ABSTRACT:
The invention relates to keyboard devices using optical switching and includes novel light distribution means to multiple fiber optics, switching means between fiber optics, and collection means from multiple fiber optics to a single point.

REFERENCES:
ludeman "Miniature Optical Keyboard" IBM Technical Disc. Bulletin vol. 15 No. 11 Apr. 1973 pp. 3348-3349.
Sharp et al. "Optical Keyboard" IBM Tech. Disc. Bulletin vol. 5, No. 10, Mar. 1963 p. 127.

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