Transmission projection screen and method of manufacturing same

Details Transmission projection screen and method of manufacturing same Transmission projection screen and method of manufacturing same

1986-03-26

1987-04-28

Wintercorn, Richard A.

350128, G03B 2160

Patent

active

046609300

ABSTRACT:
The projection screen has a transparent substrate having a front surface which is provided with mutually parallel ribs. Light-absorbing particles 7 whose size is 20 to 75% of the width of the grooves measured halfway the depth of these grooves, are disposed at the bottom of the grooves 4 between the ribs 2. The particles are fixed by means of a glue layer 6.

REFERENCES:
patent: 4525029 (1985-06-01), Inoue et al.
patent: 4573764 (1986-03-01), Bradley

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