KR20140008183A - 소형 광각 광학계 - Google Patents
소형 광각 광학계 Download PDFInfo
- Publication number
- KR20140008183A KR20140008183A KR1020120075603A KR20120075603A KR20140008183A KR 20140008183 A KR20140008183 A KR 20140008183A KR 1020120075603 A KR1020120075603 A KR 1020120075603A KR 20120075603 A KR20120075603 A KR 20120075603A KR 20140008183 A KR20140008183 A KR 20140008183A
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- optical system
- wide
- angle optical
- coating layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/04—Reversed telephoto objectives
-
- 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 -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
- G02B1/111—Anti-reflection coatings using layers comprising organic materials
-
- 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
- G02B13/0035—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 having three lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
본 발명의 소형 광각 광학계는, 음의 굴절력을 가지며, 근축 부근에서 물체측으로 오목하며 외곽으로 갈수록 볼록해지는 형상이고, 물체측면에 코팅층이 형성된 제1 렌즈; 양의 굴절력을 가지며, 물체측면이 오목하고 상측면이 볼록한 형상의 제2 렌즈; 양의 굴절력을 가지며, 양측면이 볼록한 형상의 제3 렌즈;를 포함한다.
Description
도 2는 도 1에 도시된 광학계의 MTF 그래프.
도 3은 표 1 및 도 1에 도시된 광학계의 비점수차 및 왜곡수차도.
도 4는 본 발명의 제2 실시예에 따른 촬상 광학계의 렌즈 배치를 나타낸 렌즈 구성도.
도 5는 도 4에 도시된 광학계의 MTF 그래프.
도 6은 표 3 및 도 4에 도시된 광학계의 비점수차 및 왜곡수차도.
L2. 제2 렌즈
L3. 제3 렌즈
AS. 개구 조리개
OF. 광학적 필터
1, 2, 3, 4...8, 9. 면 번호
Claims (6)
- 음의 굴절력을 가지며, 근축 부근에서 물체측으로 오목하며 외곽으로 갈수록 볼록해지는 형상이고, 물체측면에 코팅층이 형성된 제1 렌즈;
양의 굴절력을 가지며, 물체측면이 오목하고 상측면이 볼록한 형상의 제2 렌즈;
양의 굴절력을 가지며, 양측면이 볼록한 형상의 제3 렌즈;
를 포함하는 소형 광각 광학계.
- 제1항에 있어서,
상기 제2 렌즈와 제3 렌즈 사이에는 상기 광학계를 경유하는 광 중에서 불필요한 광을 차단하는 개구 조리개가 구비된 소형 광각 광학계.
- 제1항 또는 제2항에 있어서,
상기 광학계는 수차 보정과 MTF 성능에 대하여 다음의 조건식을 만족하는 소형 광각 광학계
[조건식] D2/R2 > 0.98
여기서, D2는 제1 렌즈와 제2 렌즈 사이의 간격,
R2는 제1 렌즈 상측면의 곡률반경
- 제1항에 있어서,
상기 코팅층은 굴절률이 상기 제1 렌즈와 동일 또는 유사한 굴절률을 갖는 유기 재질로 형성된 소형 광각 광학계.
- 제4항에 있어서,
상기 코팅층은, 열경화 또는 UV 경화 가능한 아크릴계 수지 재질로 형성된 소형 광각 광학계.
- 제1항에 있어서,
상기 제1 렌즈 내지 제3 렌즈는, 양면의 비구면인 플라스틱 렌즈로 구성된 소형 광각 광학계.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120075603A KR20140008183A (ko) | 2012-07-11 | 2012-07-11 | 소형 광각 광학계 |
US13/831,016 US20140016212A1 (en) | 2012-07-11 | 2013-03-14 | Small-size and wide field-of-view optical system |
EP13275069.6A EP2685302A1 (en) | 2012-07-11 | 2013-03-15 | Small-size and wide field-of-view optical system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120075603A KR20140008183A (ko) | 2012-07-11 | 2012-07-11 | 소형 광각 광학계 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20140008183A true KR20140008183A (ko) | 2014-01-21 |
Family
ID=48013889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020120075603A Ceased KR20140008183A (ko) | 2012-07-11 | 2012-07-11 | 소형 광각 광학계 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140016212A1 (ko) |
EP (1) | EP2685302A1 (ko) |
KR (1) | KR20140008183A (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105824108B (zh) * | 2015-01-09 | 2018-06-19 | 大立光电股份有限公司 | 薄型光学系统、取像装置及电子装置 |
TWI533020B (zh) * | 2015-01-09 | 2016-05-11 | 大立光電股份有限公司 | 薄型光學系統、取像裝置及電子裝置 |
JP6416070B2 (ja) * | 2015-09-28 | 2018-10-31 | 富士フイルム株式会社 | 撮像レンズおよび撮像レンズを備えた撮像装置 |
TWI612326B (zh) * | 2016-10-21 | 2018-01-21 | 大立光電股份有限公司 | 微型取像系統、取像裝置及電子裝置 |
CN111103673B (zh) * | 2018-10-25 | 2025-05-13 | 江西欧菲光学有限公司 | 光学组件、成像结构、生物识别模组及移动终端 |
JP2021139955A (ja) * | 2020-03-02 | 2021-09-16 | 株式会社リコー | 撮像光学系、カメラ装置、およびステレオカメラ装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4123771B2 (ja) * | 2000-12-26 | 2008-07-23 | 松下電工株式会社 | 広角レンズ |
JP2007025261A (ja) * | 2005-07-15 | 2007-02-01 | Matsushita Electric Works Ltd | 撮像レンズ |
JP2009230042A (ja) * | 2008-03-25 | 2009-10-08 | Brother Ind Ltd | 広角撮像レンズ |
JP4815029B2 (ja) * | 2010-02-26 | 2011-11-16 | パナソニック株式会社 | 回折レンズ、およびこれを用いた撮像装置 |
-
2012
- 2012-07-11 KR KR1020120075603A patent/KR20140008183A/ko not_active Ceased
-
2013
- 2013-03-14 US US13/831,016 patent/US20140016212A1/en not_active Abandoned
- 2013-03-15 EP EP13275069.6A patent/EP2685302A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US20140016212A1 (en) | 2014-01-16 |
EP2685302A1 (en) | 2014-01-15 |
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