OPTISCHE, RÄUMLICHE ÜBERTRAGUNGSVORRICHTUNG.

摘要

An optical transmission system (6,7) includes an information transmitting light emitting device (5) and an optical transmission fibre (7), an information receiving photoreceptor (9), an optical system (4) and a transmission/reception lens (3). The end portion (7a) of the optical transmission fibre (7) is positioned near the focal plane of the transmission/reception lens (3) and and on the optical axis of this lens (3), so that the transmission light emitted from the light emitting device (5) is transmitted into an optical space transmission line (8) through the optical transmission system (6,7) and through the lens (3). The reception light transmitted through the line (8) is projected into the information receiving photoreceptor (9) through the transmission/reception lens (3) and through the optical reception system 84). The transmission light and the reception light are spatially separated near the portion (7a) of the optical transmission fibre (7).