KR100477978B1 - 광각 카메라용 광학계 - Google Patents
광각 카메라용 광학계 Download PDFInfo
- Publication number
- KR100477978B1 KR100477978B1 KR10-2002-0028850A KR20020028850A KR100477978B1 KR 100477978 B1 KR100477978 B1 KR 100477978B1 KR 20020028850 A KR20020028850 A KR 20020028850A KR 100477978 B1 KR100477978 B1 KR 100477978B1
- Authority
- KR
- South Korea
- Prior art keywords
- lens
- optical system
- image side
- object side
- angle camera
- 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
- G02B13/04—Reversed telephoto objectives
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- 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
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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
- G02B13/0045—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 five or more lenses
-
- 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
- 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 -
- G02B9/62—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having six components only
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- 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
Description
Claims (5)
- 삭제
- 삭제
- 삭제
- 다수개의 음과 양의 구면렌즈가 복합적으로 조립되는 광각 카메라용 광학계에 있어서,물체측에 볼록면을 갖고 상측으로는 오목면을 갖는 음의 배율렌즈인 제1 렌즈 및 제2 렌즈;물체측과 상측에 각각 볼록면을 갖는 양의 배율렌즈인 제3 렌즈;상기 제3 렌즈로부터의 빛을 선택적으로 수렴하는 조리개;물체측에 오목면을 갖고 상측으로는 볼록면을 갖는 양의 배율렌즈인 제4 렌즈;물체측과 상측에 각각 볼록면을 갖는 양의 배율렌즈인 제5 렌즈; 및물체측과 상측으로 각각 오목면을 갖는 음의 배율렌즈인 제6 렌즈로 구성되는데,상기 렌즈들 중 상기 제4 렌즈만이 양측이 비구면으로 형성된 비구면 렌즈인 것을 특징으로 하며,전체 렌즈계의 초점 거리를 f, 후면 초점 거리를 B라 할 때, 1.1 ≤ B/f ≤2.5 인 조건을 만족하고, 상기 제4 렌즈의 비구면이 물체의 위치에 대응하는 입사면에 형성되고 상기 비구면에서 기준 구면의 새그(Sag)를 Xo, 비구면에 의한 새그(Sag)를 Xa라 하면, Xa - Xo > 0 인 조건을 만족하며, 광학계의 첫번째 렌즈면에서 마지막 렌즈면까지의 거리를 T, 전체 렌즈계의 초점 거리를 f라 할 때, T/f ≤6.05인 조건을 만족하는 것을 특징으로 하는 광각 카메라용 광학계.
- 청구항 4항에 있어서, 상기 비구면을 이루는 제4 렌즈는 플라스틱으로 이루어진 것을 특징으로 하는 광각 카메라용 광학계.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0028850A KR100477978B1 (ko) | 2002-05-24 | 2002-05-24 | 광각 카메라용 광학계 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0028850A KR100477978B1 (ko) | 2002-05-24 | 2002-05-24 | 광각 카메라용 광학계 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030090957A KR20030090957A (ko) | 2003-12-01 |
KR100477978B1 true KR100477978B1 (ko) | 2005-03-23 |
Family
ID=32384226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0028850A KR100477978B1 (ko) | 2002-05-24 | 2002-05-24 | 광각 카메라용 광학계 |
Country Status (1)
Country | Link |
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KR (1) | KR100477978B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100712373B1 (ko) * | 2005-11-22 | 2007-05-02 | 송순향 | 비구면을 이용한 감시카메라용 광학계 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100764434B1 (ko) * | 2006-10-16 | 2007-10-05 | 삼성전기주식회사 | 초소형 촬상 광학계 |
KR101768575B1 (ko) * | 2016-09-20 | 2017-08-17 | 주식회사 소모에너지엔테크놀러지 | 수평화각 54도의 장파장 적외선 카메라 및 카메라용 렌즈 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08106044A (ja) * | 1994-10-05 | 1996-04-23 | Moritoshi Higure | 広角度視認装置 |
JPH10232350A (ja) * | 1997-02-19 | 1998-09-02 | Kyocera Corp | 小型ズームレンズ |
KR19990026185A (ko) * | 1997-09-23 | 1999-04-15 | 이해규 | 줌렌즈 |
JP2002098886A (ja) * | 2000-09-21 | 2002-04-05 | Matsushita Electric Ind Co Ltd | 単焦点レンズ及びそれに用いるガラス接合レンズ |
-
2002
- 2002-05-24 KR KR10-2002-0028850A patent/KR100477978B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08106044A (ja) * | 1994-10-05 | 1996-04-23 | Moritoshi Higure | 広角度視認装置 |
JPH10232350A (ja) * | 1997-02-19 | 1998-09-02 | Kyocera Corp | 小型ズームレンズ |
KR19990026185A (ko) * | 1997-09-23 | 1999-04-15 | 이해규 | 줌렌즈 |
JP2002098886A (ja) * | 2000-09-21 | 2002-04-05 | Matsushita Electric Ind Co Ltd | 単焦点レンズ及びそれに用いるガラス接合レンズ |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100712373B1 (ko) * | 2005-11-22 | 2007-05-02 | 송순향 | 비구면을 이용한 감시카메라용 광학계 |
Also Published As
Publication number | Publication date |
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KR20030090957A (ko) | 2003-12-01 |
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