The Optical Tunnel — A Versatile Electrooptical Tool

L. J. Krolak, D. J. Parker

The optical tunnel consists of four front-surfaced mirrors carefully aligned to form a tunnel of exactly square cross-section. In combination with a lens this device is capable of projecting several hundred images of one object on a screen. The converse is also true, namely, that it makes possible the projection of several hundred different objects into one position. The principle of the optical tunnel and the parameters which need to be considered in its design are outlined. This unique device makes possible the solution of several difficult electrooptical problems. Applications include; an electronic ideographic (Chinese characters) composing machine; a universal print reading machine; and a random access memory.

Print ISSN
Published
1963-03
Content type
Original Research
DOI
10.5594/J08327