Process for preparing blazed holograms

Details Process for preparing blazed holograms Process for preparing blazed holograms

1989-08-01

1991-05-07

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

264 14, 264 25, 264219, 2643281, B29D 1100, B29C 4500

Patent

active

050134949

ABSTRACT:
A process for preparing blazed holograms suitable for mass-production which includes fabricating a glass or metal plate having a surface of serrated cross section, disposing the glass or metal plate in an injection mold to allow the surface of serrated cross section to constitute an inner surface of the mold. Then injecting an acrylic resin in molten form into the mold under a specific molding pressure, and removing a molded acrylic resin from the glass plate or metal plate to obtain an acrylic blazed hologram.

REFERENCES:
patent: 818966 (1906-04-01), Ives
patent: 3680945 (1972-08-01), Sheridan
patent: 4440699 (1984-04-01), Smid et al.
patent: 4619804 (1986-10-01), Leonard et al.

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