LENS OBJECTIVE OF 1X MAGNIFICATION Russian patent published in 1997 - IPC

Abstract RU 2079153 C1

FIELD: illumination systems of opticoelectron transducers of annular position of shaft. SUBSTANCE: objective lens incorporates two components placed in symmetry relative to diaphragm. Each component includes plano-convex lens, biconvex lens and negative meniscus facing diaphragm with concavity. First lens faces space of objects with its plano surface. EFFECT: improved functional accuracy. 1 dwg

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RU 2 079 153 C1

Authors

Lustberg Eh.A.

Ershova T.V.

Malika G.S.

Dates

1997-05-10—Published

1993-09-14—Filed