DE3785616D1 - Asphaerische einzellinse. - Google Patents

Asphaerische einzellinse.

Info

Publication number
DE3785616D1
DE3785616D1 DE8787305151T DE3785616T DE3785616D1 DE 3785616 D1 DE3785616 D1 DE 3785616D1 DE 8787305151 T DE8787305151 T DE 8787305151T DE 3785616 T DE3785616 T DE 3785616T DE 3785616 D1 DE3785616 D1 DE 3785616D1
Authority
DE
Germany
Prior art keywords
asphaeric
single lens
lens
asphaeric single
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.)
Expired - Lifetime
Application number
DE8787305151T
Other languages
English (en)
Other versions
DE3785616T2 (de
Inventor
Yasuhiro Tanaka
Yasuo Nakajima
Yoshitomi Nagaoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE3785616D1 publication Critical patent/DE3785616D1/de
Application granted granted Critical
Publication of DE3785616T2 publication Critical patent/DE3785616T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Optical Head (AREA)
DE8787305151T 1986-07-02 1987-06-10 Asphaerische einzellinse. Expired - Lifetime DE3785616T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61155383A JPS6310119A (ja) 1986-07-02 1986-07-02 大口径単レンズ

Publications (2)

Publication Number Publication Date
DE3785616D1 true DE3785616D1 (de) 1993-06-03
DE3785616T2 DE3785616T2 (de) 1993-08-05

Family

ID=15604746

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787305151T Expired - Lifetime DE3785616T2 (de) 1986-07-02 1987-06-10 Asphaerische einzellinse.

Country Status (4)

Country Link
US (1) US4842388A (de)
EP (1) EP0252614B1 (de)
JP (1) JPS6310119A (de)
DE (1) DE3785616T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4927247A (en) * 1988-05-13 1990-05-22 Matsushita Electric Industrial Co., Ltd. Objective lens for optical disk system and optical head using the same
JPH01293311A (ja) * 1988-05-20 1989-11-27 Alps Electric Co Ltd 光メモリ用コリメートレンズ
US4932763A (en) * 1988-07-28 1990-06-12 Canon Kabushiki Kaisha Aspherical single lens system for use with optical cards
JPH02223906A (ja) * 1989-02-24 1990-09-06 Hoya Corp 有限系大口径非球面レンズ
JPH02245715A (ja) * 1989-03-17 1990-10-01 Hoya Corp 低分散ガラスモールド非球面単レンズ
US4979807A (en) * 1989-04-12 1990-12-25 Canon Kabushiki Kaisha Biaspherical single lens for an optical information recording-reproducing apparatus
US5572362A (en) * 1992-04-20 1996-11-05 Mitsubishi Denki Kabushiki Kaisha Condenser lens, polarizing element, light source apparatus, and projection display apparatus
US5384659A (en) * 1992-04-20 1995-01-24 Mitsubishi Denki Kabushiki Kaisha Condenser lens, polarizing element, light source apparatus, and projection display apparatus
KR960013802B1 (ko) * 1993-03-30 1996-10-10 현대전자산업 주식회사 레이저 다이오드의 빔을 정형한 비구면 시준기렌즈
JP3191200B2 (ja) * 1994-11-10 2001-07-23 コニカ株式会社 光情報記録媒体の記録再生装置
JPH0954247A (ja) * 1995-08-10 1997-02-25 Fuji Photo Optical Co Ltd 光記録媒体読取用レンズ
JPH0954246A (ja) * 1995-08-10 1997-02-25 Fuji Photo Optical Co Ltd 光記録媒体読取用レンズ
JP3435311B2 (ja) * 1997-06-19 2003-08-11 松下電器産業株式会社 情報読み取り装置
JP2003337281A (ja) * 2002-05-17 2003-11-28 Minolta Co Ltd 光ピックアップ用の対物レンズ

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508811A (en) * 1966-11-09 1970-04-28 Taisuke Tsugami Aspheric lens having log cos surfaces
FR2271585B1 (de) * 1974-05-14 1976-10-15 Philips Nv
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
JPS5868711A (ja) * 1981-10-20 1983-04-23 Matsushita Electric Ind Co Ltd 対物レンズ
JPS5923313A (ja) * 1982-07-29 1984-02-06 Minolta Camera Co Ltd 大口径集光レンズ
JPS5926714A (ja) * 1982-08-05 1984-02-13 Olympus Optical Co Ltd 光デイスク用レンズ
JPS60120310A (ja) * 1983-12-05 1985-06-27 Canon Inc 非球面単レンズ
NL8304213A (nl) * 1983-12-07 1985-07-01 Philips Nv Enkelvoudige lens met een asferisch oppervlak.
JPS6156314A (ja) * 1984-08-28 1986-03-22 Konishiroku Photo Ind Co Ltd 光情報記録媒体の記録再生用対物レンズ
NL8403198A (nl) * 1984-10-22 1986-05-16 Philips Nv Enkelvoudige bi-asferische lens.
JPH0664231B2 (ja) * 1985-04-25 1994-08-22 ソニー株式会社 光学ヘツド用有限倍率レンズ
JPS61261711A (ja) * 1985-05-16 1986-11-19 Nippon Kogaku Kk <Nikon> 有限系大口径単レンズ
JPS6254212A (ja) * 1985-09-02 1987-03-09 Canon Inc 非球面単レンズ
JPS62251709A (ja) * 1986-04-24 1987-11-02 Minolta Camera Co Ltd 光デイスク用対物レンズ
JPH06156314A (ja) * 1992-11-19 1994-06-03 Toray Ind Inc ２人乗り自動車

Also Published As

Publication number Publication date
JPS6310119A (ja) 1988-01-16
EP0252614A3 (en) 1989-06-14
DE3785616T2 (de) 1993-08-05
EP0252614A2 (de) 1988-01-13
US4842388A (en) 1989-06-27
EP0252614B1 (de) 1993-04-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)