JP2006504137A - 色収差を軽減した眼用レンズ - Google Patents
色収差を軽減した眼用レンズ Download PDFInfo
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- JP2006504137A JP2006504137A JP2004546914A JP2004546914A JP2006504137A JP 2006504137 A JP2006504137 A JP 2006504137A JP 2004546914 A JP2004546914 A JP 2004546914A JP 2004546914 A JP2004546914 A JP 2004546914A JP 2006504137 A JP2006504137 A JP 2006504137A
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- 230000004075 alteration Effects 0.000 title abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
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- 239000004417 polycarbonate Substances 0.000 description 6
- 229920000515 polycarbonate Polymers 0.000 description 6
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- 238000000576 coating method Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 208000001491 myopia Diseases 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- DIOZVWSHACHNRT-UHFFFAOYSA-N 2-(2-prop-2-enoxyethoxy)ethanol Chemical compound OCCOCCOCC=C DIOZVWSHACHNRT-UHFFFAOYSA-N 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000009500 colour coating Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004418 eye rotation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
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- 208000014733 refractive error Diseases 0.000 description 1
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- 238000003856 thermoforming Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
-
- 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
- G02B27/44—Grating systems; Zone plate systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
- G02C2202/20—Diffractive and Fresnel lenses or lens portions
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Prostheses (AREA)
- Eyeglasses (AREA)
- Lenses (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
本発明は眼用レンズに関する。詳細には、本発明は色収差を軽減した眼鏡レンズに関する。
屈折異常の矯正に眼用レンズを使用することは周知の通りである。眼鏡レンズの製造では、特に度数の強いレンズの場合、許容できる縁及び中心の厚みが得られるように屈折率の高い材料、すなわち屈折率が1.50よりも大きい材料を使用するのが好ましい。しかしながら、ポリカーボネートや無機ガラスなどの従来の材料を用いて屈折率を大きくすると、色収差及び色分散が増大してしまう。
TCAが0.25ジオプトリを超えると多くのレンズ使用者にとって問題となる。
本発明は、回折要素及び及び屈折要素の両方を用いる単焦点レンズ及び多焦点レンズ、並びにそれらの製造方法を提供する。この複合レンズは、横の色収差を10〜100%軽減して、約50〜120の有効アッベ数を有する高屈折率を可能にする。所定のバランスで屈折度数と回折度数(diffractive power)を組み合わせて、アッベ数が高い屈折レンズに等しい性能を備えたレンズを提供することができる。
この式において、VRはレンズ材料のアッベ数であり、VDはレンズの回折要素の有効アッベ数である。通常は、レンズ材料のアッベ数は約30〜約60である。
この式のλmidは、対象の範囲の中間点の波長である。可視系の場合、通常は587nmの値が用いられる。対象の範囲の短い波長はλshortであり、可視系の場合、通常は486nmが用いられる。対象の範囲の長い波長はλlongであり、可視系の場合、通常は656nmが用いられる。これらの波長の値を用いると、VDが−3.45である。
この式において、ΦDは、屈折度数ΦRに対する回折度数の最適値であり、その値は約0〜約2ΦDである。この値が0の場合、色収差の補正がない。この値が2ΦDの場合、色収差はレンズの色収差に等しいが反対方向である。
例1
球面度数が−4.00の単焦点レンズは、アッベ数29のポリカーボネートから形成される。比較目的のための基準として、フロントカーブの曲率が200mm、バックカーブの曲率が79mmの従来の屈折レンズをまず分析した。このレンズは、そのレンズから27mmの眼球回動点(eye rotation point)に配置された焦点距離18mmのレンズの焦点面におけるRMSスポットサイズを計算して分析した。RMSスポットサイズは、−40度〜+40度の入射角で計算し、図3に示されている。
ポリカーボネート製の非円環累進屈折力レンズは、−4.00ジオプトリの近視度数及び1.30ジオプトリの加入度数を有する。図5に、このレンズのRMSスポットサイズが示されている。図4に、このレンズの不所望の非点収差が示されている。これらの図面では、様々な角度でレンズを通る水平カットによる断面解析が示されている。10度の断面は、レンズの適正見領域(fair vision region)を通る水平カットである。この特定のレンズでは、近見領域(near vision region)は−40度である。適正領域から中間見領域(intermediate vision region)、そして近見領域にかけて一連のカットを形成した。
それぞれの球面度数に対して専用の回折が必要ないように一群のデザインの回折度数を選択することができる。レンズの全球面度数は、前面の屈折度数と後面の屈折度数と回折要素の回折度数の合計である。この回折要素は、前面、後面、または中間面に設けることができる。
Claims (17)
- 眼用レンズであって、
球面度数Φ、第1の球面度数ΦDを有する回折要素、及び第2の球面度数ΦRを有する屈折要素を含み、
Φ=ΦD+ΦRであることを特徴とする眼用レンズ。 - 前記回折要素が、前記レンズの実質的に全ての後面を含むことを特徴とする請求項1、2、3、4、または5に記載の眼用レンズ。
- 前記回折要素が、前記レンズの実質的に全ての前面を含むことを特徴とする請求項1、2、3、4、または5に記載の眼用レンズ。
- 前記回折要素が、前記レンズの前面と後面の中間面を含むことを特徴とする請求項1、2、3、4、または5に記載の眼用レンズ。
- 前記レンズが単焦点レンズを含むことを特徴とする請求項6に記載の眼用レンズ。
- 前記レンズが単焦点レンズを含むことを特徴とする請求項7に記載の眼用レンズ。
- 前記レンズが単焦点レンズを含むことを特徴とする請求項8に記載の眼用レンズ。
- 前記レンズが多焦点レンズを含むことを特徴とする請求項6に記載の眼用レンズ。
- 前記レンズが多焦点レンズを含むことを特徴とする請求項7に記載の眼用レンズ。
- 前記レンズが多焦点レンズを含むことを特徴とする請求項8に記載の眼用レンズ。
- 特注レンズを製造する方法であって、
球面度数Φ、第1の球面度数ΦDを有する回折要素、及び第2の球面度数ΦRを有する屈折要素を含み、Φ=ΦD+ΦRである眼用レンズを用意するステップを含むことを特徴とする方法。 - 前記レンズが単焦点レンズであることを特徴とする請求項15に記載の方法。
- 前記レンズが多焦点レンズであることを特徴とする請求項15に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/279,619 US6851803B2 (en) | 2002-10-24 | 2002-10-24 | Ophthalmic lenses with reduced chromatic blur |
PCT/US2003/033180 WO2004038489A1 (en) | 2002-10-24 | 2003-10-17 | Ophthalmic lenses with reduced chromatic aberration |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2006504137A true JP2006504137A (ja) | 2006-02-02 |
Family
ID=32106765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004546914A Pending JP2006504137A (ja) | 2002-10-24 | 2003-10-17 | 色収差を軽減した眼用レンズ |
Country Status (14)
Country | Link |
---|---|
US (1) | US6851803B2 (ja) |
EP (1) | EP1558961A1 (ja) |
JP (1) | JP2006504137A (ja) |
KR (1) | KR20050065625A (ja) |
CN (1) | CN100485456C (ja) |
AU (1) | AU2003277449A1 (ja) |
BR (1) | BR0315640A (ja) |
CA (1) | CA2503413C (ja) |
IL (1) | IL168160A (ja) |
MX (1) | MXPA05004304A (ja) |
MY (1) | MY128029A (ja) |
RU (1) | RU2005115565A (ja) |
TW (1) | TW200415385A (ja) |
WO (1) | WO2004038489A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5251517B2 (ja) * | 2007-01-25 | 2013-07-31 | 株式会社ニコン | 眼鏡レンズ |
JP2016521378A (ja) * | 2013-04-02 | 2016-07-21 | ローデンストック.ゲゼルシャフト.ミット.ベシュレンクテル.ハフツング | 処方レンズ作製における微細構造化眼鏡レンズの生成 |
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FR2642855B1 (fr) | 1989-02-06 | 1991-05-17 | Essilor Int | Lentille optique pour la correction de l'astigmatisme |
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GB9008577D0 (en) * | 1990-04-17 | 1990-06-13 | Pilkington Diffractive Lenses | Rigid gas permeable lenses |
GB9008580D0 (en) | 1990-04-17 | 1990-06-13 | Pilkington Diffractive Lenses | Manufacture of contact lenses |
US5096285A (en) * | 1990-05-14 | 1992-03-17 | Iolab Corporation | Multifocal multizone diffractive ophthalmic lenses |
US5078513A (en) | 1990-11-08 | 1992-01-07 | The University Of Rochester | Achromatic waveguide lenses |
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US5349471A (en) | 1993-02-16 | 1994-09-20 | The University Of Rochester | Hybrid refractive/diffractive achromatic lens for optical data storage systems |
US5895422A (en) * | 1993-06-17 | 1999-04-20 | Hauber; Frederick A. | Mixed optics intraocular achromatic lens |
US5543966A (en) | 1993-12-29 | 1996-08-06 | Eastman Kodak Company | Hybrid refractive/diffractive achromatic camera lens |
US5699142A (en) | 1994-09-01 | 1997-12-16 | Alcon Laboratories, Inc. | Diffractive multifocal ophthalmic lens |
US5734502A (en) | 1996-02-07 | 1998-03-31 | Lexitek, Inc. | Achromatic diffractive optic |
JPH10161020A (ja) | 1996-12-02 | 1998-06-19 | Olympus Optical Co Ltd | 回折光学素子を用いた撮影光学系 |
US6070980A (en) | 1997-04-08 | 2000-06-06 | Asahi Kogaku Kogyo Kabushiki Kaisha | Spectacle lens |
US6139147A (en) * | 1998-11-20 | 2000-10-31 | Novartis Ag | Actively controllable multifocal lens |
-
2002
- 2002-10-24 US US10/279,619 patent/US6851803B2/en not_active Expired - Fee Related
-
2003
- 2003-10-17 WO PCT/US2003/033180 patent/WO2004038489A1/en active Application Filing
- 2003-10-17 MX MXPA05004304A patent/MXPA05004304A/es active IP Right Grant
- 2003-10-17 CA CA002503413A patent/CA2503413C/en not_active Expired - Fee Related
- 2003-10-17 EP EP03809581A patent/EP1558961A1/en not_active Withdrawn
- 2003-10-17 RU RU2005115565/28A patent/RU2005115565A/ru not_active Application Discontinuation
- 2003-10-17 CN CNB200380101852XA patent/CN100485456C/zh not_active Expired - Fee Related
- 2003-10-17 BR BR0315640-0A patent/BR0315640A/pt not_active IP Right Cessation
- 2003-10-17 AU AU2003277449A patent/AU2003277449A1/en not_active Abandoned
- 2003-10-17 JP JP2004546914A patent/JP2006504137A/ja active Pending
- 2003-10-17 KR KR1020057007042A patent/KR20050065625A/ko not_active Application Discontinuation
- 2003-10-22 MY MYPI20034027A patent/MY128029A/en unknown
- 2003-10-23 TW TW092129371A patent/TW200415385A/zh unknown
-
2005
- 2005-04-20 IL IL168160A patent/IL168160A/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5251517B2 (ja) * | 2007-01-25 | 2013-07-31 | 株式会社ニコン | 眼鏡レンズ |
JP2016521378A (ja) * | 2013-04-02 | 2016-07-21 | ローデンストック.ゲゼルシャフト.ミット.ベシュレンクテル.ハフツング | 処方レンズ作製における微細構造化眼鏡レンズの生成 |
Also Published As
Publication number | Publication date |
---|---|
AU2003277449A1 (en) | 2004-05-13 |
RU2005115565A (ru) | 2006-01-20 |
IL168160A (en) | 2010-04-15 |
WO2004038489A1 (en) | 2004-05-06 |
KR20050065625A (ko) | 2005-06-29 |
CA2503413A1 (en) | 2004-05-06 |
TW200415385A (en) | 2004-08-16 |
MY128029A (en) | 2007-01-31 |
MXPA05004304A (es) | 2005-11-23 |
EP1558961A1 (en) | 2005-08-03 |
BR0315640A (pt) | 2005-08-30 |
CN100485456C (zh) | 2009-05-06 |
US20040080710A1 (en) | 2004-04-29 |
CA2503413C (en) | 2009-09-01 |
US6851803B2 (en) | 2005-02-08 |
CN1705904A (zh) | 2005-12-07 |
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