Process for providing high speed multi-faceted injection molded

Details Process for providing high speed multi-faceted injection molded Process for providing high speed multi-faceted injection molded

1976-05-19

1981-03-31

Hoffman, James R.

Coating processes

Optical element produced

427250, G02B 508, G02B 504, H04N 308

Patent

active

042593700

ABSTRACT:
A magnesium fluoride or Inconel adhesion promoting overcoat is applied to an injection molded acrylic polygon having a multiplicity of smooth facet faces in order to apply a subsequent reflective thin coating such as aluminum to the polygonal faces. The multi-faceted high speed polygonal scanner thus provided is employed in flying spot scanning applications. The system thus provided is found to involve low cost production and to provide high quality scanning devices.

REFERENCES:
patent: 2456241 (1948-12-01), Axler
patent: 3087201 (1963-04-01), Williams et al.
patent: 3450465 (1969-06-01), Prance et al.
patent: 3607457 (1971-09-01), Hagg et al.
patent: 3687713 (1972-08-01), Adams
patent: 3848087 (1974-11-01), Carrell
Powell et al., Vapor Deposition, p. 556 (1966).

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