Lens system for micro film

Details Lens system for micro film Lens system for micro film

1978-08-09

1980-05-06

Sacher, Paul A.

350214, G02B 964, G02B 1314

Patent

active

042014409

ABSTRACT:
A lens system for micro film which provides high resolution over a wide range with an ultraviolet ray, and has transmittance sufficient for said ray and a long working distance on the image side. Said lens system comprises a first negative cemented doublet component, a second positive lens component, a third positive lens component, a fourth positive lens component, a fifth positive lens component, a sixth negative cemented doublet component, a seventh negative meniscus lens component, an eighth cemented meniscus lens component and a ninth positive meniscus lens component.

REFERENCES:
patent: 4050778 (1977-09-01), Fleischman
patent: 4050779 (1977-09-01), Fleischman

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