DE3609657C2 - - Google Patents

Info

Publication number
DE3609657C2
DE3609657C2 DE3609657A DE3609657A DE3609657C2 DE 3609657 C2 DE3609657 C2 DE 3609657C2 DE 3609657 A DE3609657 A DE 3609657A DE 3609657 A DE3609657 A DE 3609657A DE 3609657 C2 DE3609657 C2 DE 3609657C2
Authority
DE
Germany
Prior art keywords
prism
light
wavelength
light beam
changes
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
DE3609657A
Other languages
German (de)
English (en)
Other versions
DE3609657A1 (de
Inventor
Shigeru Hachioji Jp Nakamura
Sadao Nagaoka Jp Takahashi
Masateru Kanagawa Jp Watanabe
Akira Musashimurayama Jp Arimoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of DE3609657A1 publication Critical patent/DE3609657A1/de
Application granted granted Critical
Publication of DE3609657C2 publication Critical patent/DE3609657C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0972—Prisms
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Optical Head (AREA)
DE19863609657 1985-03-22 1986-03-21 Prismenoptik Granted DE3609657A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60055830A JPH0693044B2 (ja) 1985-03-22 1985-03-22 プリズム光学系及びそれを用いた情報装置

Publications (2)

Publication Number Publication Date
DE3609657A1 DE3609657A1 (de) 1986-10-02
DE3609657C2 true DE3609657C2 (en, 2012) 1993-04-29

Family

ID=13009885

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863609657 Granted DE3609657A1 (de) 1985-03-22 1986-03-21 Prismenoptik

Country Status (3)

Country Link
US (1) US5016237A (en, 2012)
JP (1) JPH0693044B2 (en, 2012)
DE (1) DE3609657A1 (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611037C2 (de) * 1996-03-20 1998-11-05 Heckl Oestreicher Brigitte Dr Polarisierender Strahlteiler auf der Basis von Wollaston-Prismen

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0827401B2 (ja) * 1987-02-12 1996-03-21 株式会社コパル ビ−ム成形プリズム
JPS63197901A (ja) * 1987-02-12 1988-08-16 Copal Co Ltd ビ−ム成形プリズム
JPS6449136A (en) * 1987-08-19 1989-02-23 Matsushita Electric Ind Co Ltd Optical head
JPS6449135A (en) * 1987-08-19 1989-02-23 Matsushita Electric Ind Co Ltd Optical head
JPH0422913A (ja) * 1990-05-18 1992-01-27 Nikon Corp 色消ビーム整形光学系
US5237457A (en) * 1990-10-04 1993-08-17 Asahi Kogaku Kogyo Kabushiki Kaisha Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism
JPH04301245A (ja) * 1991-03-28 1992-10-23 Canon Inc 光磁気記録再生用光ヘッド
US5477386A (en) * 1991-07-24 1995-12-19 Asahi Kogaku Kogyo Kabushiki Kaisha Optical system for optical disc apparatus including anamorphic prisms
US5226054A (en) * 1991-09-18 1993-07-06 Coherent, Inc. Cavity mirror for suppressing high gain laser wavelengths
JP3351046B2 (ja) * 1993-09-22 2002-11-25 ソニー株式会社 レーザ製版装置
EP0891620A1 (en) * 1996-12-24 1999-01-20 Koninklijke Philips Electronics N.V. Optical system having an increased angular scan range
JP2003067968A (ja) * 2001-08-27 2003-03-07 Olympus Optical Co Ltd 光ヘッド
JP5055612B2 (ja) * 2005-10-04 2012-10-24 株式会社ニコン プリズムおよび分光器

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780140A (en) * 1955-03-31 1957-02-05 Eastman Kodak Co Prism zoom system having deviation correcting means
US3871750A (en) * 1971-12-13 1975-03-18 Singer Co Focusing roll and displacement prisms
US3856380A (en) * 1973-05-15 1974-12-24 Us Navy Prism to separate a second harmonic from its fundamental frequency
NL176314C (nl) * 1974-02-15 1985-03-18 Philips Nv Inrichting voor het uitlezen van een registratiedrager waarop informatie is aangebracht in een optisch uitleesbare structuur.
NL7402169A (nl) * 1974-02-15 1975-08-19 Philips Nv Inrichting voor het uitlezen van een registra- tiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.
NL7414776A (nl) * 1974-11-13 1976-05-17 Philips Nv Inrichting voor het uitlezen van een registra- tiedrager met een optische informatiestruktuur.
US4017160A (en) * 1975-09-19 1977-04-12 Minnesota Mining And Manufacturing Company Continuously variable anamorphic lens
US4084881A (en) * 1975-10-21 1978-04-18 Canon Kabushiki Kaisha Light beam scanning device
US4333173A (en) * 1979-06-15 1982-06-01 Hitachi, Ltd. Optical information processor with prismatic correction of laser beam shape
DE3376172D1 (en) * 1982-01-22 1988-05-05 Hitachi Ltd Method and apparatus for reducing semiconductor laser optical noise
JPH0687316B2 (ja) * 1983-02-10 1994-11-02 オリンパス光学工業株式会社 光学式再生装置
US4770507A (en) * 1984-03-09 1988-09-13 Hitachi, Ltd. Prism optics and optical information processing apparatus
JPS6246401U (en, 2012) * 1985-09-07 1987-03-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611037C2 (de) * 1996-03-20 1998-11-05 Heckl Oestreicher Brigitte Dr Polarisierender Strahlteiler auf der Basis von Wollaston-Prismen

Also Published As

Publication number Publication date
JPS61217002A (ja) 1986-09-26
US5016237A (en) 1991-05-14
DE3609657A1 (de) 1986-10-02
JPH0693044B2 (ja) 1994-11-16

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition