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1. US20160223796 - Photographic lens and photographic apparatus including the same

Office United States of America
Application Number 15009382
Application Date 28.01.2016
Publication Number 20160223796
Publication Date 04.08.2016
Grant Number 09927597
Grant Date 27.03.2018
Publication Kind B2
IPC
G02B 13/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
G02B 9/62
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
9Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or –
62having six components only
CPC
G02B 13/0045
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13Optical objectives specially designed for the purposes specified below
001Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
0015characterised by the lens design
002having at least one aspherical surface
0045having five or more lenses
G02B 9/62
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
9Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
62having six components only
Applicants KOLEN CO., LTD.
Inventors Jong Jin Lee
Chan Goo Kang
Agents Fitch Even Tabin & Flannery LLP
Priority Data 10-2015-0015569 30.01.2015 KR
Title
(EN) Photographic lens and photographic apparatus including the same
Abstract
(EN)

A photographic lens includes, in a sequence from an object to an image plane, a first lens having positive or negative refractive power; a second lens having positive or negative refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens having positive refractive power; and a sixth lens having negative refractive power. The photographic lens satisfies the following condition:
90°<FOV<160°
0.5<D1/D6<1.0
where FOV is a field of view of the photographic lens, D1 is an effective aperture of the first lens, and D2 is an effective aperture of the sixth lens.

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