DEVICE FOR DETERMINING STRESSED-DEFORMED STATE IN OPTICALLY ACTIVE MODELS Russian patent published in 1995 - IPC

Abstract RU 2029272 C1

FIELD: optic instrument engineering. SUBSTANCE: device has a light source in the form of a gas laser, first cylindrical lens a first radius of which is equal to a laser beam radius positioned in the path of a laser beam and forming beam in the form of a flat conic knife, objective lens in the form of a biconvex lens situated behind the cylindrical lens and adapted for forming plane- parallel light knife behind which a model to be investigated is placed. EFFECT: enhanced reliability. 4 cl, 3 dwg

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RU 2 029 272 C1

Authors

Shvetsov A.V.

Dates

1995-02-20—Published

1992-07-03—Filed