Copying machine including a dielectric covered metal reflective

Details Copying machine including a dielectric covered metal reflective Copying machine including a dielectric covered metal reflective

1982-09-30

1985-06-11

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

350642, 355 66, 355 71, G03G 1504

Patent

active

045224854

ABSTRACT:
A copying machine has at least one metal surface of high reflectance provided with a dielectric multilayer film vapor deposited thereon. The dielectric film has a wavelength selectivity and serves to match the wavelength characteristics of the light source used in the copying machine to the sensitivity characteristics of the photosensitive medium used in the same copying machine. Thus, in the copying machine, the spectral sensitivity characteristics get adjusted to the optimum by the particular effect of the metal reflective surface or by a synergistic effect of two or more such reflective metal surface.

REFERENCES:
patent: 3143921 (1964-08-01), Russell
patent: 3944320 (1976-03-01), McLintic
patent: 4082413 (1978-04-01), Austin et al.
patent: 4088884 (1978-05-01), Rast et al.
patent: 4132477 (1979-01-01), Watabe et al.
Soviet Journal of Quantum Electronics; "Possibility of Suppression of Reflection Peaks In Transmission Bands of Dielectric Mirrors"; Feb. 1975; vol. 4, No. 8, pp. 1032-1034.

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