Rotating cylindrical beam splitter

Details Rotating cylindrical beam splitter Rotating cylindrical beam splitter

1986-03-31

1989-12-26

Arnold, Bruce Y.

350 68, 350172, G02B 5136, G02B 2610

Patent

active

048894184

ABSTRACT:
A rotating cylindrical or prismatic reflective body (28, . . . 428) is used as a beam splitter in a laser system in which an outgoing pulsed high-energy beam (12) and a low-energy return beam (30) from a target follow coincident optical paths. During one portion of rotation of its rotation cycle, the reflective surface (42, . . . 442) is removed from the optical path to permit passage of the high-energy laser pulse past a bypass surface (44, . . . 444). During a second portion of its rotation cycle, the body reflects the target return beam to a sensor (34).

REFERENCES:
patent: 4118619 (1978-10-01), McArthur et al.
patent: 4518218 (1985-05-01), Diepeveen

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