KR100946497B1 - 광학계 - Google Patents
광학계 Download PDFInfo
- Publication number
- KR100946497B1 KR100946497B1 KR1020070111994A KR20070111994A KR100946497B1 KR 100946497 B1 KR100946497 B1 KR 100946497B1 KR 1020070111994 A KR1020070111994 A KR 1020070111994A KR 20070111994 A KR20070111994 A KR 20070111994A KR 100946497 B1 KR100946497 B1 KR 100946497B1
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- aperture
- doe
- lens group
- optical system
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
- G02B27/4205—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
Description
Claims (2)
- 제1렌즈군, 광량을 조절하고 불필요한 광을 차단시키기 위한 조리개, 제2렌즈군을 물체측으로부터 상측으로 순차적으로 포함하며,상기 제1렌즈군은 제1렌즈로 구성되고,상기 제2렌즈군은 하나 또는 복수의 렌즈로 구성되고,상기 제1렌즈와 조리개 사이가 소정 거리 이상 이격되어 있고,상기 제1렌즈의 상측면에는 클리어 어퍼쳐(clear aperture) 구간이 형성되어 있으며, 상기 클리어 어퍼쳐 구간은 DOE면과 비구면을 포함하여 구성된 것을 특징으로 하는 광학계.
- 제1항에 있어서,상기 제1렌즈의 상측면은 클리어 어퍼쳐 구간의 중심부가 DOE로 되어 있고, 중심부를 제외한 주변부가 비구면 영역으로 되어 있는 광학계.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070111994A KR100946497B1 (ko) | 2007-11-05 | 2007-11-05 | 광학계 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070111994A KR100946497B1 (ko) | 2007-11-05 | 2007-11-05 | 광학계 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090046058A KR20090046058A (ko) | 2009-05-11 |
KR100946497B1 true KR100946497B1 (ko) | 2010-03-10 |
Family
ID=40856004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070111994A KR100946497B1 (ko) | 2007-11-05 | 2007-11-05 | 광학계 |
Country Status (1)
Country | Link |
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KR (1) | KR100946497B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10104533A (ja) | 1996-10-03 | 1998-04-24 | Minolta Co Ltd | ファインダ光学系 |
KR20010030271A (ko) * | 1999-09-09 | 2001-04-16 | 요코다 마코도 | 촬상렌즈 |
KR20020083026A (ko) * | 2001-04-25 | 2002-11-01 | 엘지전자 주식회사 | 디지털 카메라용 광학계 |
KR100711024B1 (ko) | 2007-01-23 | 2007-04-24 | 주식회사 세코닉스 | 초소형 고해상도 접합형 촬상 렌즈 |
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2007
- 2007-11-05 KR KR1020070111994A patent/KR100946497B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10104533A (ja) | 1996-10-03 | 1998-04-24 | Minolta Co Ltd | ファインダ光学系 |
KR20010030271A (ko) * | 1999-09-09 | 2001-04-16 | 요코다 마코도 | 촬상렌즈 |
KR20020083026A (ko) * | 2001-04-25 | 2002-11-01 | 엘지전자 주식회사 | 디지털 카메라용 광학계 |
KR100711024B1 (ko) | 2007-01-23 | 2007-04-24 | 주식회사 세코닉스 | 초소형 고해상도 접합형 촬상 렌즈 |
Also Published As
Publication number | Publication date |
---|---|
KR20090046058A (ko) | 2009-05-11 |
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