Optics: motion pictures – Methods – Recording
Patent
1982-08-19
1983-11-29
Hayes, Monroe H.
Optics: motion pictures
Methods
Recording
352 46, 352 48, 352 89, 352 49, G03B 1918
Patent
active
044177917
ABSTRACT:
A reverse blue screen process for travelling matte cinematography, which comprises the formation of travelling mattes by pre-coating models or other foreground subjects utilized in composite cinematography with one or more phosphor materials which are invisible upon exposure to visible light, but which emit light of predetermined wavelengths upon excitation by ultraviolet light, and exposing the models through appropriate filters to produce mattes of the predetermined portions of the models coated with the phosphorescing materials, by thus reversing the conventional blue screen process for travelling matte cinematography and exposing an illuminating foreground subject against an opaque background rather than an opaque foreground subject against an illuminated background, it is possible for the first time to successfully matte finely detailed models or other foreground subjects displaying specular reflectance in a single film process.
REFERENCES:
patent: 1697315 (1929-01-01), Handschiegl
patent: 1840669 (1932-01-01), Handschiegl
patent: 1840670 (1932-01-01), Handschiegl
patent: 1860737 (1932-05-01), Handschiegl
patent: 3085877 (1963-04-01), Reid
patent: 3149969 (1964-09-01), Vlahos
patent: 3158477 (1964-11-01), Vlahos
American Cinematographer, Sep. 1982, pp. 912-932.
Cinefex, Oct. 1982, No. 10, pp. 40-72.
Dorney Roger
Erland Jonathan
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