JP2005284001A - 単焦点レンズ - Google Patents
単焦点レンズ Download PDFInfo
- Publication number
- JP2005284001A JP2005284001A JP2004098420A JP2004098420A JP2005284001A JP 2005284001 A JP2005284001 A JP 2005284001A JP 2004098420 A JP2004098420 A JP 2004098420A JP 2004098420 A JP2004098420 A JP 2004098420A JP 2005284001 A JP2005284001 A JP 2005284001A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- single focus
- shape
- aspherical
- paraxial
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 16
- 230000014509 gene expression Effects 0.000 claims description 17
- 230000005499 meniscus Effects 0.000 claims description 14
- 239000011521 glass Substances 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 description 23
- 230000004075 alteration Effects 0.000 description 17
- 230000003287 optical effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 201000009310 astigmatism Diseases 0.000 description 4
- 239000006059 cover glass Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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
- 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
- G02B13/18—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
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/28—Interference filters
- G02B5/281—Interference filters designed for the infrared light
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
【解決手段】 例えばガラス材料よりなる正の第1レンズG1と、絞りStと、プラスチック材料の非球面レンズよりなる正の第2レンズG2と、プラスチック材料の非球面レンズよりなる負の第3レンズG3とを物体側から順に配設し、かつ、以下の条件式を満たす。fはレンズ系全体の近軸焦点距離、f3は第3レンズG3の近軸焦点距離、R1は第1レンズG1の物体側の面の曲率半径、θは最大像高における半画角を示す。
0.6<R1/f<0.8 …(1)
−1.0<f3/f<0 … (2)
0.60<tanθ<0.70 ……(3)
【選択図】 図1
Description
−1.0<f3/f<0 … (2)
0.60<tanθ<0.70 ……(3)
ただし、fはレンズ系全体の近軸焦点距離、f3は第3レンズの近軸焦点距離、R1は第1レンズの物体側の面の曲率半径、θは最大像高における半画角を示している。
0.6<R1/f<0.8 …(1)
−1.0<f3/f<0 … (2)
0.60<tanθ<0.70 ……(3)
ただし、
Z:非球面の深さ(mm)
h:光軸からレンズ面までの距離(高さ)(mm)
K:離心率
C:近軸曲率=1/R
(R:近軸曲率半径)
Ai:第i次(i=3〜10)の非球面係数
Claims (4)
- 物体側より順に、
物体側の面を凸面形状とした正のパワーを有するメニスカス形状の第1レンズと、
絞りと、
プラスチック材よりなり、少なくとも1面を非球面形状とし、かつ物体側の面を凹面形状とした正のパワーを有するメニスカス形状の第2レンズと、
プラスチック材よりなり、両面を非球面形状とし、かつ像側の面を近軸近傍において凹面形状とした負のパワーを有する第3レンズと
を備え、
かつ、以下の条件式を満足するように構成されている
ことを特徴とする単焦点レンズ。
0.6<R1/f<0.8 …(1)
−1.0<f3/f<0 … (2)
0.60<tanθ<0.70 ……(3)
ただし、
f:レンズ系全体の近軸焦点距離
f3:第3レンズの近軸焦点距離
R1:第1レンズの物体側の面の曲率半径
θ:最大像高における半画角 - 前記第3レンズは、近軸近傍においてメニスカス形状である
ことを特徴とする請求項1に記載の単焦点レンズ。 - 前記第3レンズは、近軸近傍において平凹形状もしくは両凹形状である
ことを特徴とする請求項1に記載の単焦点レンズ。 - 前記第3レンズは、有効径の範囲内で、物体側の面が周辺に行くほど負のパワーが強くなる非球面形状であり、かつ像側の面が周辺に行くほど正のパワーが強くなる非球面形状となっている
ことを特徴とする請求項1ないし3のいずれか1項に記載の単焦点レンズ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004098420A JP3768509B2 (ja) | 2004-03-30 | 2004-03-30 | 単焦点レンズおよび撮像装置 |
US11/075,750 US7099092B2 (en) | 2004-03-30 | 2005-03-10 | Single focus wide-angle lens |
TW094107966A TWI264559B (en) | 2004-03-30 | 2005-03-16 | Single focus lens |
KR1020050023457A KR100708278B1 (ko) | 2004-03-30 | 2005-03-22 | 단초점 렌즈 |
CNB2005100559878A CN1296743C (zh) | 2004-03-30 | 2005-03-24 | 单焦点镜头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004098420A JP3768509B2 (ja) | 2004-03-30 | 2004-03-30 | 単焦点レンズおよび撮像装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005284001A true JP2005284001A (ja) | 2005-10-13 |
JP3768509B2 JP3768509B2 (ja) | 2006-04-19 |
Family
ID=35049769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004098420A Expired - Fee Related JP3768509B2 (ja) | 2004-03-30 | 2004-03-30 | 単焦点レンズおよび撮像装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7099092B2 (ja) |
JP (1) | JP3768509B2 (ja) |
KR (1) | KR100708278B1 (ja) |
CN (1) | CN1296743C (ja) |
TW (1) | TWI264559B (ja) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3768510B2 (ja) * | 2004-03-30 | 2006-04-19 | フジノン株式会社 | 広角単焦点レンズおよび撮像装置 |
JP4804857B2 (ja) * | 2005-09-29 | 2011-11-02 | 富士フイルム株式会社 | 単焦点レンズ |
US7443613B2 (en) * | 2006-07-19 | 2008-10-28 | Largan Precision Co., Ltd. | Three-piece lens assembly |
US7706086B2 (en) * | 2006-11-08 | 2010-04-27 | Fujinon Corporation | Imaging lens |
JP5063434B2 (ja) * | 2007-03-30 | 2012-10-31 | 富士フイルム株式会社 | 撮像レンズ |
WO2008120167A2 (en) * | 2007-03-31 | 2008-10-09 | Koninklijke Philips Electronics N.V. | Optical biopsy device |
JP2008275831A (ja) * | 2007-04-27 | 2008-11-13 | Seiko Precision Inc | 撮像レンズ |
CN101369045A (zh) | 2007-08-17 | 2009-02-18 | 鸿富锦精密工业(深圳)有限公司 | 镜头系统 |
US20090195892A1 (en) * | 2008-01-31 | 2009-08-06 | Newmax Technology Co., Ltd. | Image lens module |
JP5151524B2 (ja) * | 2008-02-12 | 2013-02-27 | 株式会社ニコン | 撮影レンズ、この撮影レンズを備えた光学機器、及び、結像方法 |
KR100973290B1 (ko) * | 2008-03-13 | 2010-07-30 | 삼성테크윈 주식회사 | 카메라용 결상 광학계 |
KR101049883B1 (ko) * | 2008-07-21 | 2011-07-15 | (주)미래광기술 | 광각 렌즈계와 이를 구비한 전자기기 |
CN102023370B (zh) * | 2009-09-15 | 2012-05-23 | 大立光电股份有限公司 | 成像透镜系统 |
JP5952135B2 (ja) * | 2012-08-28 | 2016-07-13 | カンタツ株式会社 | 超小型撮像レンズ |
CN103439785B (zh) * | 2013-09-07 | 2015-11-18 | 江西联创电子股份有限公司 | 高像素广角镜头的透镜成像系统 |
CN104977699B (zh) * | 2015-06-30 | 2017-08-01 | 瑞声声学科技(苏州)有限公司 | 摄像镜头 |
CN106094175B (zh) * | 2016-04-27 | 2020-09-15 | 玉晶光电(厦门)有限公司 | 光学成像镜头及便携式电子装置 |
CN111061046B (zh) * | 2019-10-29 | 2021-06-25 | 江西联创电子有限公司 | 红外光学成像镜头及成像设备 |
US11579409B2 (en) | 2019-10-29 | 2023-02-14 | Jiangxi Lianchuang Electronic Co., Ltd. | Infrared optical imaging lens, camera module and driver monitor system |
CN110850552B (zh) * | 2019-10-29 | 2021-06-25 | 江西联创电子有限公司 | 光学成像镜头及成像设备 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH026917A (ja) | 1988-04-15 | 1990-01-11 | Konica Corp | 小型の可変焦点距離レンズ |
JPH07281089A (ja) * | 1994-04-12 | 1995-10-27 | Olympus Optical Co Ltd | 撮影レンズ |
JPH1048516A (ja) | 1996-08-06 | 1998-02-20 | Hinode:Kk | Ccd用レンズ |
JP2001318310A (ja) * | 2000-02-29 | 2001-11-16 | Fuji Photo Optical Co Ltd | 単焦点レンズ |
CN2511990Y (zh) * | 2001-12-13 | 2002-09-18 | 玉晶光电(厦门)有限公司 | 一种数位影像镜头 |
CN2520515Y (zh) * | 2002-01-18 | 2002-11-13 | 玉晶光电(厦门)有限公司 | 一种影像镜头 |
JP2003241082A (ja) * | 2002-02-20 | 2003-08-27 | Fuji Photo Optical Co Ltd | ローコストな単焦点レンズ |
DE60303153D1 (de) * | 2002-03-25 | 2006-04-06 | Konica Corp | Dreilinsiges Objektiv |
JP3567327B2 (ja) | 2002-05-08 | 2004-09-22 | 富士写真光機株式会社 | 撮像レンズ |
US7304807B2 (en) | 2002-07-30 | 2007-12-04 | Minolta Co., Ltd. | Taking lens system |
KR100516601B1 (ko) * | 2003-08-13 | 2005-09-22 | 삼성전기주식회사 | 휴대용 단말기에 장착되는 렌즈 시스템 |
-
2004
- 2004-03-30 JP JP2004098420A patent/JP3768509B2/ja not_active Expired - Fee Related
-
2005
- 2005-03-10 US US11/075,750 patent/US7099092B2/en active Active
- 2005-03-16 TW TW094107966A patent/TWI264559B/zh not_active IP Right Cessation
- 2005-03-22 KR KR1020050023457A patent/KR100708278B1/ko not_active IP Right Cessation
- 2005-03-24 CN CNB2005100559878A patent/CN1296743C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100708278B1 (ko) | 2007-04-17 |
CN1677153A (zh) | 2005-10-05 |
CN1296743C (zh) | 2007-01-24 |
US7099092B2 (en) | 2006-08-29 |
JP3768509B2 (ja) | 2006-04-19 |
TW200602666A (en) | 2006-01-16 |
KR20060044514A (ko) | 2006-05-16 |
US20050231822A1 (en) | 2005-10-20 |
TWI264559B (en) | 2006-10-21 |
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