JPS6148684B2 - - Google Patents

Info

Publication number
JPS6148684B2
JPS6148684B2 JP56103665A JP10366581A JPS6148684B2 JP S6148684 B2 JPS6148684 B2 JP S6148684B2 JP 56103665 A JP56103665 A JP 56103665A JP 10366581 A JP10366581 A JP 10366581A JP S6148684 B2 JPS6148684 B2 JP S6148684B2
Authority
JP
Japan
Prior art keywords
lens
curvature
characteristic
image
case
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
Application number
JP56103665A
Other languages
English (en)
Japanese (ja)
Other versions
JPS585706A (ja
Inventor
Nobuo Sakuma
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56103665A priority Critical patent/JPS585706A/ja
Priority to US06/394,148 priority patent/US4695132A/en
Publication of JPS585706A publication Critical patent/JPS585706A/ja
Publication of JPS6148684B2 publication Critical patent/JPS6148684B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/0005—Optical objectives specially designed for the purposes specified below having F-Theta characteristic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/12—Straight saw blades; Strap saw blades
    • B23D61/121—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lenses (AREA)
  • Mechanical Optical Scanning Systems (AREA)
JP56103665A 1981-07-02 1981-07-02 単玉▲ｆ▼θレンズ Granted JPS585706A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56103665A JPS585706A (ja) 1981-07-02 1981-07-02 単玉▲ｆ▼θレンズ
US06/394,148 US4695132A (en) 1981-07-02 1982-07-01 Fθ single lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56103665A JPS585706A (ja) 1981-07-02 1981-07-02 単玉▲ｆ▼θレンズ

Publications (2)

Publication Number Publication Date
JPS585706A JPS585706A (ja) 1983-01-13
JPS6148684B2 true JPS6148684B2 (enExample) 1986-10-25

Family

ID=14360075

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56103665A Granted JPS585706A (ja) 1981-07-02 1981-07-02 単玉▲ｆ▼θレンズ

Country Status (2)

Country Link
US (1) US4695132A (enExample)
JP (1) JPS585706A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702256A1 (en) 1994-09-06 1996-03-20 Canon Kabushiki Kaisha Optical scanning apparatus including a lens having aspherical surfaces on both sides

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0746168B2 (ja) * 1984-06-19 1995-05-17 キヤノン株式会社 屈折率分布型単レンズ
KR920010837B1 (ko) * 1988-09-30 1992-12-19 주식회사 금성사 레이저 프린터용 홀로그래피 주사장치
JPH07111501B2 (ja) * 1990-06-15 1995-11-29 キヤノン株式会社 ｆθレンズ及びそれを用いた画像形成装置
US8213068B1 (en) * 1994-09-06 2012-07-03 Canon Kabushiki Kaisha Scanning optical apparatus
US5768028A (en) * 1994-12-26 1998-06-16 Kabushiki Kaisha Sankyo Seiki Seisakusho Scanning optics
US6650413B2 (en) 1999-08-08 2003-11-18 Institut National D'optique Linear spectrometer
CA2280531C (en) 1999-08-19 2008-06-10 Simon Thibault F-sin (.theta.) lens system and method of use of same
US6597831B2 (en) 2000-11-29 2003-07-22 Institut National D'optique Linear wavelength DWDM
JP2003149549A (ja) * 2001-11-16 2003-05-21 Enplas Corp 撮像レンズ
US6696667B1 (en) * 2002-11-22 2004-02-24 Scimed Life Systems, Inc. Laser stent cutting
JP4223936B2 (ja) * 2003-02-06 2009-02-12 株式会社リコー 投射光学系、拡大投射光学系、拡大投射装置及び画像投射装置
US9146155B2 (en) * 2007-03-15 2015-09-29 Oto Photonics, Inc. Optical system and manufacturing method thereof
TWI325492B (en) * 2007-03-16 2010-06-01 Cheng Hao Ko Optical system
TWI345050B (en) * 2007-08-03 2011-07-11 Oto Photonics Inc Optical system and method of manufacturing the same
TWI715599B (zh) 2016-07-12 2021-01-11 台灣超微光學股份有限公司 光譜儀模組及其製作方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658365A (en) * 1924-02-06 1928-02-07 Eastman Kodak Co Objective
US2398276A (en) * 1945-02-05 1946-04-09 Eastman Kodak Co Variable power telescope
JPS5487540A (en) * 1977-12-23 1979-07-12 Canon Inc Information processing terminal device
JPS5893021A (ja) * 1981-11-28 1983-06-02 Ricoh Co Ltd 偏向面の倒れ補正効果を有する２群構成ｆθレンズ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0702256A1 (en) 1994-09-06 1996-03-20 Canon Kabushiki Kaisha Optical scanning apparatus including a lens having aspherical surfaces on both sides

Also Published As

Publication number Publication date
US4695132A (en) 1987-09-22
JPS585706A (ja) 1983-01-13

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