Copy lens

Details Copy lens Copy lens

1994-09-27

1996-04-09

Sugarman, Scott J.

Optical: systems and elements

Lens

Multiple component lenses

359778, G02B 944, G02B 956

Patent

active

055067298

ABSTRACT:
A copy lens comprising four lens elements arranged symmetrically with an aperture, namely, in order from the object end to the image end, a first biconvex element and a biconcave element, which are positioned on one side of the aperture, a third biconcave element identical with the second biconcave element and a fourth biconvex element identical with the first biconvex element, which are positioned on another side of the aperture.

REFERENCES:
patent: 2986972 (1961-06-01), Milas

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