Output optics for laser velocimeters

Details Output optics for laser velocimeters Output optics for laser velocimeters

1991-04-17

1993-11-23

Buczinski, Stephen C.

Optics: measuring and testing

Velocity or velocity/height measuring

With light detector

359362, G01P 336

Patent

active

052649075

ABSTRACT:
Space savings are effected in the optical output system of a laser velocimeter. The output system comprises pairs of optical fibers having output ends from which a beam of laser light emerges, a transfer lens for each light beam, and at least one final (LV) lens for receiving the light passing through the transfer lenses and for focussing that light at a common crossing point or area. In order to closely couple the transfer lenses to the final lens, each transfer lens is positioned relative to the final lens receiving light therefrom such that the output waist of the corresponding beam received by the final lens from the transfer lens is a virtual waist located before the transfer lens.

REFERENCES:
patent: 3895872 (1975-07-01), Dandliker et al.
patent: 4632548 (1986-12-01), Gunter, Jr.
patent: 4697922 (1987-10-01), Gunter, Jr.
patent: 4758068 (1988-07-01), Gughton et al.
patent: 4823014 (1989-04-01), Miyawaki
patent: 5040886 (1991-08-01), Gunter
patent: 5077622 (1991-12-01), Lynch et al.

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