SG86490G - Single lens having one aspherical surface - Google Patents

Single lens having one aspherical surface

Info

Publication number
SG86490G
SG86490G SG864/90A SG86490A SG86490G SG 86490 G SG86490 G SG 86490G SG 864/90 A SG864/90 A SG 864/90A SG 86490 A SG86490 A SG 86490A SG 86490 G SG86490 G SG 86490G
Authority
SG
Singapore
Prior art keywords
lens
aspherical surface
single lens
substrate
curvatures
Prior art date
Application number
SG864/90A
Other languages
English (en)
Original Assignee
Philips Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of SG86490G publication Critical patent/SG86490G/en

Links

Classifications

    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
  • Glass Compositions (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Prostheses (AREA)
  • Eyeglasses (AREA)
SG864/90A 1983-12-07 1990-10-24 Single lens having one aspherical surface SG86490G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8304213A NL8304213A (nl) 1983-12-07 1983-12-07 Enkelvoudige lens met een asferisch oppervlak.

Publications (1)

Publication Number Publication Date
SG86490G true SG86490G (en) 1991-01-04

Family

ID=19842847

Family Applications (1)

Application Number Title Priority Date Filing Date
SG864/90A SG86490G (en) 1983-12-07 1990-10-24 Single lens having one aspherical surface

Country Status (12)

Country Link
US (1) US4668056A (da)
EP (1) EP0146178B1 (da)
JP (1) JPH0614135B2 (da)
AT (1) ATE42151T1 (da)
AU (1) AU573659B2 (da)
CA (1) CA1255527A (da)
DD (1) DD229507A5 (da)
DE (1) DE3477695D1 (da)
DK (1) DK160109B (da)
ES (1) ES8608179A1 (da)
NL (1) NL8304213A (da)
SG (1) SG86490G (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61144616A (ja) * 1984-12-18 1986-07-02 Olympus Optical Co Ltd 明るい広角レンズ
NL8502225A (nl) * 1985-06-10 1987-01-02 Philips Nv Replika lens en methode voor de vervaardiging ervan.
US4768867A (en) * 1985-09-02 1988-09-06 Canon Kabushiki Kaisha Aspherical single lens
JPS6310119A (ja) * 1986-07-02 1988-01-16 Matsushita Electric Ind Co Ltd 大口径単レンズ
NL8603010A (nl) * 1986-11-27 1988-06-16 Philips Nv Optische aftastinrichting.
EP0396538A4 (en) * 1988-01-13 1990-12-27 Eastman Kodak Company Method of making a thin lens
NL8901245A (nl) * 1989-05-19 1990-12-17 Philips Nv Retrofokus objektieflens en optische aftastinrichting voorzien van een dergelijke lens.
US5153778A (en) * 1991-06-19 1992-10-06 At&T Bell Laboratories Powerless field-corrective lens
JP3267089B2 (ja) * 1994-02-22 2002-03-18 キヤノン株式会社 走査レンズ系及びそれを用いた光走査装置
JPH09500459A (ja) * 1994-05-02 1997-01-14 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 反射防止回折格子を有する光透過性光学素子
JPH08313805A (ja) * 1995-05-18 1996-11-29 Sony Corp レンズ装置及び紫外線集光装置
US5966362A (en) * 1995-11-02 1999-10-12 Konica Corporation Optical system for recording and reproducing for use in optical information recording medium
KR100230253B1 (ko) * 1996-02-14 1999-11-15 윤종용 대물렌즈 장치 및 이의 제작방법 및 이를 적용한 광픽업장치
EP0932845B1 (en) * 1997-08-19 2008-01-02 Koninklijke Philips Electronics N.V. An optical system restraining aberrations within the maximum imaging volume
CN1708798A (zh) * 2002-11-01 2005-12-14 皇家飞利浦电子股份有限公司 光学扫描装置
CN101620317B (zh) * 2008-06-30 2011-06-22 富士迈半导体精密工业（上海）有限公司 一种具有长焦深的激光装置
JP5574226B2 (ja) * 2010-03-23 2014-08-20 株式会社ニコン 干渉対物レンズ及びこれを有する顕微鏡装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388118A (en) * 1942-05-08 1945-10-30 Vickers Electrical Co Ltd Lens
US2530397A (en) * 1948-02-18 1950-11-21 Ancillary Henry L Beigel Anastigmatic lens
DE1278131C2 (de) * 1965-11-18 1974-03-21 Taisuke Tsugami Asphaerische Linse
US3508811A (en) * 1966-11-09 1970-04-28 Taisuke Tsugami Aspheric lens having log cos surfaces
GB1362380A (en) * 1971-11-25 1974-08-07 Mullard Ltd Manufacture of optical elements
JPS533926B2 (da) * 1973-08-31 1978-02-13
DE2445333A1 (de) * 1973-10-01 1975-04-10 Philips Nv Optoelektronisches system zur bestimmung einer abweichung zwischen der istlage und der sollage einer ebene in einem optischen abbildungssystem
FR2271585B1 (da) * 1974-05-14 1976-10-15 Philips Nv
JPS55130527A (en) * 1979-03-30 1980-10-09 Minolta Camera Co Ltd Real image system finder optical system
JPS5776512A (en) * 1980-10-31 1982-05-13 Konishiroku Photo Ind Co Ltd Large-aperture aspheric single lens
JPS57201210A (en) * 1981-06-04 1982-12-09 Sony Corp Condenser lens
NL8103323A (nl) * 1981-07-13 1983-02-01 Philips Nv Enkelvoudige lens met een sferisch en een asferisch brekend oppervlak.
JPS5868711A (ja) * 1981-10-20 1983-04-23 Matsushita Electric Ind Co Ltd 対物レンズ

Also Published As

Publication number Publication date
DK575884A (da) 1985-06-08
ES538239A0 (es) 1986-06-01
DK160109B (da) 1991-01-28
CA1255527A (en) 1989-06-13
US4668056A (en) 1987-05-26
ES8608179A1 (es) 1986-06-01
JPH0614135B2 (ja) 1994-02-23
JPS60126616A (ja) 1985-07-06
EP0146178A1 (en) 1985-06-26
EP0146178B1 (en) 1989-04-12
DE3477695D1 (en) 1989-05-18
NL8304213A (nl) 1985-07-01
DK575884D0 (da) 1984-12-04
ATE42151T1 (de) 1989-04-15
AU3635284A (en) 1985-06-13
DD229507A5 (de) 1985-11-06
AU573659B2 (en) 1988-06-16

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