Three dimensional video screen display effect

Details Three dimensional video screen display effect Three dimensional video screen display effect

1982-05-03

1985-05-14

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

350144, 273143R, G07F 1734, G09G 100

Patent

active

045175586

ABSTRACT:
A three dimensional visual effect of rotating mechanical reels is given to a two dimensional display on a video screen by using a film having a continuous tone gradient from dark to light, the darkest portions extending along the upper and lower edges of the film, respectively, with the lightest adjacent the center of the film. The film is placed over the video screen images so that the darkened tone gradients of the film are over the upper and lower portion of the display, and the lighter portion of the film at the center is over the center of the display.

REFERENCES:
patent: 1696359 (1928-12-01), Nelson
patent: 1978395 (1934-10-01), Groetchen
patent: 2525893 (1950-10-01), Gloess
patent: 3701581 (1972-10-01), Henkes, Jr.
patent: 3759525 (1973-09-01), Davis
patent: 4002335 (1977-01-01), Bailey

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