| 摘要 |
A high resolution objective lens system for ultra microfiche designed for a magnification of 1/150x DIFFERENCE 1/120x and comprising a first cemented lens component consisting of a positive lens element and a negative lens element, a second positive lens component, a third positive lens component, a fourth negative cemented lens component, a fifth positive lens component and a sixth cemented lens component consisting of a negative meniscus lens element and a positive meniscus lens element.
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