MIRROR-LENS PANCRATIC OBJECTIVE Russian patent published in 1995 - IPC

Abstract RU 2047879 C1

FIELD: optical instrument engineering. SUBSTANCE: objective has motionless mirror-lens frontal component, two movable lens components, and motionless lens component. Frontal component is made in form of mirror-lens objective with focal length of . Movable positive optic power components have focal lengths of . The last motionless component of negative optical power has focal length being equal to , where is minimal focal length of the objective. EFFECT: improved reliability of operation. 3 cl, 2 dwg

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RU 2 047 879 C1

Authors

Vasilenko Sergej Al'Bertovich

Dates

1995-11-10—Published

1993-02-25—Filed