Diffusion plate having predetermined divergence angle

Details Diffusion plate having predetermined divergence angle Diffusion plate having predetermined divergence angle

1986-11-17

1989-05-02

Corbin, John K.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

350286, 156628, 430946, G02B 2700, B44C 122

Patent

active

048262927

ABSTRACT:
A diffusion plate useful for capturing a real image in an optical system. The plate has a roughened semi-transparent surface for diffusing incident radiation. The surface is comprised of cones etched therein for form a roughness. The cones have a geometry and average center-to-center distances which are precisely predetermined to correspond with either a desired angle of divergence or with a desired diffusion intensity.

REFERENCES:
patent: 3740119 (1973-06-01), Sakurai et al.
patent: 3779779 (1973-12-01), Landsman
patent: 3782940 (1974-01-01), Ohto et al.
patent: 4268347 (1981-05-01), Stephens
patent: 4524127 (1985-06-01), Kane
patent: 4528260 (1985-07-01), Kane
patent: 4551418 (1985-11-01), Hult et al.

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