Beam splitter optical system of signal pickup device

Details Beam splitter optical system of signal pickup device Beam splitter optical system of signal pickup device

1981-08-13

1983-09-27

Henry, Jon W.

350394, 350445, G02B 2710, G02B 306, G02B 530

Patent

active

044065205

ABSTRACT:
An optical system for use in a signal pickup device of, for example, an optical video and/or audio disc player, comprising a beam splitter prism composed of two component segments forming therebetween a light polarization or semi-reflective mirror plane inclined at the angle of 45 degrees to a predetermined path of light through the prism, each of the component segments having an outwardly curved surface portion through which the path of light extends.

REFERENCES:
patent: 3536380 (1970-10-01), Ferguson
patent: 4178074 (1979-12-01), Heller
"10.sup.10 bit auf einer Platte optisch gespeichert", Elektronik 1978, Heft 15, pp. 31-34.

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