Polarizing retroreflecting prism

Details Polarizing retroreflecting prism Polarizing retroreflecting prism

1982-12-07

1985-06-25

Punter, William H.

Coherent light generators

Particular component circuitry

Optical pumping

350286, 372 16, G02B 530, G02B 504

Patent

active

045250340

ABSTRACT:
An improved prism which polarizes and retroreflects a light beam which is incident thereto at the Brewster's angle. The principles of the Brewster window, corner reflector, and total internal reflection, such as at the ends of a laser cavity, is incorporated into a single optical device. When correctly polarized light, with respect to the Brewster angle entrance to the prism, strikes the specially shaped right angle prism at the Brewster's angle, the light will be retroreflected straight back paralled to the incoming beam without significant losses.

REFERENCES:
patent: 2432432 (1947-12-01), MacNeille
patent: 3388314 (1968-06-01), Gould
patent: 3402364 (1968-09-01), De Lang
patent: 3540801 (1970-11-01), Schmidt
De Jong, A. N., "A Novel Prism for Total Reflection" Optica Acta, 4-1963, pp. 115-119.
Southhall, J. P. C., "Mirrors, Prisms & Lenses", MacMillan Co. 1923, pp. 50-51.

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