Lens system and portable device employing the same

Details Lens system and portable device employing the same Lens system and portable device employing the same

2006-08-22

2006-08-22

Harringtion, Alicia M. (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S716000

Reexamination Certificate

active

07095571

ABSTRACT:
A lens system and a portable device employing the lens system are provided. The lens system includes at least three lenses and an infrared cut filter disposed between any of the lenses to prevent redness from occurring at a center region of an image as the lens system is miniaturized. An angle ⊖1at which light is incident on the infrared cut filter satisfies 14°≦θ1≦16°.

REFERENCES:
patent: 5175650 (1992-12-01), Takayama et al.
patent: 2002-139605 (2002-05-01), None
patent: 1020030001072 (2003-01-01), None

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