Four-component microscope objective

Details Four-component microscope objective Four-component microscope objective

1976-06-17

1977-10-18

Sacher, Paul A.

350220, G02B 934

Patent

active

040543692

ABSTRACT:
A four-member microscope objective having a numerical aperture of 0.25 provides a magnification of substantially 10.times. and a substantially flat image field of 24mm in combination with a telescope objective as described in U.S. Pat. No. 3,355,234 and a typical 10.times. eyepiece.

REFERENCES:
patent: 3428389 (1969-02-01), Judd

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