Method of making a light equalizer

Details Method of making a light equalizer Method of making a light equalizer

1974-12-09

1978-09-05

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156294, 264 1, 264112, 264113, B29C 2700, B32B 3104

Patent

active

041117310

ABSTRACT:
A method of making a light equalizer comprises the steps of selecting a powdered crystalline material capable of being compressed to form a body transparent to selective wavelengths of light. The material is compressed to a point short of complete transparency so as to provide a plurality of light scattering centers throughout the bulk of the body. A stack of the bodies are formed in which the bodies are disposed along a common axis. The exterior surfaces of the stack thus formed are covered with an internally reflective coating except for two opposite ends thereof, so that light of selected wavelengths transmitted through the stack will be substantially uniformly distributed at the output of the stack.

REFERENCES:
patent: 3198059 (1965-08-01), Phaneuf et al.
patent: 3365271 (1968-01-01), Carnall et al.

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