Projection television with a wavelength-selection-type rear proj

Details Projection television with a wavelength-selection-type rear proj Projection television with a wavelength-selection-type rear proj

1992-03-17

1994-03-22

Groody, James J.

Television

Video display

Projection device

348381, 313112, 359457, 359460, H04N 572, H04N 931, H04N 574

Patent

active

052969223

ABSTRACT:
A projection television has a rear projection screen including a Fresnel lens and a lenticular lens, and a smoke sheet. The screen is characterized in that a dye or a pigment is mixed into the lenticular lens sheet or the smoke sheet which thereby has a waveform selection transmittance having the following transmittance values:

REFERENCES:
patent: 3679451 (1972-07-01), Marks et al.
patent: 4003080 (1977-01-01), Maiman et al.
patent: 5066099 (1991-11-01), Yoshida et al.
patent: 5168351 (1992-12-01), Bradley et al.

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