Prismatic light beam expansion or compression system

Patent

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G02B 504

Patent

active

042148170

ABSTRACT:
Optical system for providing changes in a cross sectional dimension of a substantially collimated monochromatic beam of light by allowing the beam to be directed repeatedly, at Brewster's angle, toward and incident upon a common air/light conducting material interface so as to provide said changes utilizing a minimum of bulk material and space while achieving a very high degree of efficiency in the transmission of light through the system.

REFERENCES:
patent: 3657733 (1972-04-01), Shapiro et al.

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