Lens system

Optical: systems and elements – Lens – Multiple component lenses

Reexamination Certificate

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Details

C359S781000, C359S795000

Reexamination Certificate

active

07035023

ABSTRACT:
This application discloses a lens system comprising in order from an object side to an image side: an aperture stop; a first lens element, having a positive optical power; and a second lens element, having a negative optical power. By setting the shapes of the respective lens elements and the materials making up the respective lens elements so as to meet predetermined conditions in such a lens system, a lens system of a compact size which provides good optical performance is realized while securing telecentric characteristics.

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