Title:
PHOTOMICROGRAPHIC LENS
Document Type and Number:
Japanese Patent JPS5885409
Kind Code:
A
Abstract:
PURPOSE: To obtain a lens system suitable for photomicrography by using 4 lenses so as to especially correct the distortion aberration.
CONSTITUTION: A lens system is composed of the 1st single or joined lens having the stronger surface at the image side, the 2nd biconvex lens, the 3rd negative lens having the concave surface at the object side and the 4th biconvex lens, and conditions 1W4 are satisfied.
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Inventors:
YUMA YOSHITO
Application Number:
JP18222681A
Publication Date:
May 21, 1983
Filing Date:
November 16, 1981
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
G02B9/34; (IPC1-7): G02B9/34
Domestic Patent References:
| JPS5310446A | 1978-01-30 |
Attorney, Agent or Firm:
Koji Mukai