Synthetic resin half-mirror

Stock material or miscellaneous articles – Composite – Of bituminous or tarry residue

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Details

428333, G02B 528, G02B 110

Patent

active

049798022

ABSTRACT:
A synthetic resin half-mirror comprises a synthetic resin substrate, a first SiO film layer deposited thereon, and further at least two SiO.sub.2 layers and CeO.sub.2 film layers alternately deposited thereon and satisfies a spectral reflectance at incident angle of 45.degree. of not less than 40% as an optical property.

REFERENCES:
patent: 2366687 (1945-01-01), Osterberg
patent: 3356522 (1967-12-01), Libbert
patent: 4196246 (1980-04-01), Takayama et al.
patent: 4372642 (1983-02-01), Singer et al.

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