Image pickup optical system

Details Image pickup optical system Image pickup optical system

2006-09-27

2009-06-23

Mack, Ricky L (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S747000, C359S764000, C359S770000, C359S771000

Reexamination Certificate

active

07551373

ABSTRACT:
An image pickup optical system for forming a light flux from an object into an optical image on an image pickup element, is provided with, in order from an object side thereof: a first lens with a negative power in a meniscus shape including a convex surface facing the object side; a second lens in a bioconcave shape; a third lens with a positive power including a convex surface facing an image surface side; and a fourth lens with a positive power including a convex surface facing the image surface side. The first lens and the third lens are glass lenses and the second lens and the fourth lens are plastic lenses.

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European Search Report dated Dec. 29, 2006, for counterpart European Application No. EP 06 02 07772 with Communication/Minutes.
S. Brownstein, “Tashenbuch der Mathematick”, Harri Deutch Verlag, XP002411624, 1984, (1 page).

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