Low polarization beam splitter

Details Low polarization beam splitter Low polarization beam splitter

1980-07-31

1983-01-11

Henry, Jon W.

350171, G02B 528, G02B 2710

Patent

active

043679218

ABSTRACT:
A beam splitter is disclosed which comprises a transparent substrate plate, a first dielectric thin film layer laid on the substrate, a metallic thin film layer laid on the first dielectric layer and a second dielectric thin film layer laid on the metallic layer. At least one of the first and second dielectric layers is composed of a plural number of dielectric substance layers having different refractive indexes. At least one of the dielectric substance layers is of a dielectric substance having a refractive index less than 1.80.

REFERENCES:
patent: 2399860 (1946-05-01), Dimmtick
patent: 2815695 (1957-12-01), Scharf et al.
patent: 3559090 (1971-01-01), Refermat et al.
patent: 4179181 (1979-12-01), Chang
Fadeeva et al. E. I., Sov. Jour. of Opt. Tech., vol. 42, No. 12, pp. 736-737, Dec. 1975.
Sokolova, R. S., Sov. Jour. of Opt. Tech., vol. 37, No. 5, pp. 318-320, May, 1970.

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