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2 086 945

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C1

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IPC

(21) (22)

Application

94009393/28, 1994-03-16

(22)

Actual filing date

1994-03-16

(45)

Published

1997-08-10

(72)

Inventor

Slavnov S.G.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Kosmicheskoj Optiki Vserossijskij Nauchnyj Tsentr Goi Im.Vavilova S.I.

METHOD OF MEASUREMENT OF DIVERGENCE ANGLE OF COLLIMATED BUNDLE OF RAYS Russian patent published in 1997 - IPC

Abstract RU 2086945 C1

FIELD: measuring equipment. SUBSTANCE: optical lens with focal length f′ assembles together the beam in the focal plane in the form of a light spot, its diameter d′ on the preset portion of energy of the maximum is measured, diameter d of the source light area on the same portion of energy of the maximum as d′ is measured, and the angle is calculated from relation , after which a half of the beam is overlapped by non-transparent screen 4, and the angle sign is determined according to the shape of the light spot in the lens focal plane. EFFECT: facilitated procedure. 6 dwg

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RU 2 086 945 C1

Authors

Slavnov S.G.

Dates

1997-08-10—Published

1994-03-16—Filed

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