Image pick-up lens, image pick-up unit and mobile terminal

Details Image pick-up lens, image pick-up unit and mobile terminal Image pick-up lens, image pick-up unit and mobile terminal

2005-05-13

2009-10-27

Chan, Jason (Department: 2622)

Television

Camera, system and detail

Optics

C359S689000, C359S716000, C359S791000

Reexamination Certificate

active

07609313

ABSTRACT:
An image pick-up lens for forming an image of an object on a solid image pick-up element having a rectangular effective pixel area, has a first lens; a second lens; a third lens; and a diaphragm having an aperture. The following conditional expressions are satisfied:in-line-formulae description="In-line Formulae" end="lead"?15°<IAD<35°in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?|IAh−(IAD·Yh/YD)|<5°in-line-formulae description="In-line Formulae" end="tail"?where,YD: a length of ½ of the diagonal length of the rectangular effective pixel area of the solid image pick-up element,Yh: an arbitrary image height of the image pick-up lens (where, Yh<YD),IAD: an angle formed between a chief ray of a light flux forming an image at the image height YDof the image pick-up lens and the optical axis, andIAh: an angle formed between a chief ray of a light flux image forming an image at the image height Yhof the image pick-up lens, and the optical axis.

REFERENCES:
patent: 5729390 (1998-03-01), Abe
patent: 5786944 (1998-07-01), Hagimori et al.
patent: 6844984 (2005-01-01), Benedix et al.
patent: 6844989 (2005-01-01), Jo et al.
patent: 7006305 (2006-02-01), Amanai

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