Vacuum aperture isolator for retroreflection from laser-irradiat

Details Vacuum aperture isolator for retroreflection from laser-irradiat Vacuum aperture isolator for retroreflection from laser-irradiat

1978-10-13

1980-03-25

Henry, Jon W.

Oscillators

Relaxation oscillators

331 945Q, 331 945C, 350320, G02F 100

Patent

active

041948130

ABSTRACT:
The disclosure is directed to a vacuum aperture isolator for retroreflection of a laser-irradiated target. Within a vacuum chamber are disposed a beam focusing element, a disc having an aperture and a recollimating element. The edge of the focused beam impinges on the edge of the aperture to produce a plasma which refracts any retroreflected light from the laser's target.

REFERENCES:
patent: 3433555 (1969-03-01), Tomlinson
patent: 3718592 (1973-02-01), Prosser
patent: 3734592 (1973-05-01), Sztankay et al.
patent: 3814503 (1974-06-01), Milam
patent: 3980397 (1976-09-01), Judd et al.

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