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JPH0216898B2 - - Google Patents

Info

Publication number
JPH0216898B2
JPH0216898B2 JP57227909A JP22790982A JPH0216898B2 JP H0216898 B2 JPH0216898 B2 JP H0216898B2 JP 57227909 A JP57227909 A JP 57227909A JP 22790982 A JP22790982 A JP 22790982A JP H0216898 B2 JPH0216898 B2 JP H0216898B2
Authority
JP
Japan
Prior art keywords
prism
light
lens
lens surface
fresnel lens
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
JP57227909A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59119340A (ja
Inventor
Yukio Yada
Masao Inoe
Shingo Suzuki
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP57227909A priority Critical patent/JPS59119340A/ja
Publication of JPS59119340A publication Critical patent/JPS59119340A/ja
Publication of JPH0216898B2 publication Critical patent/JPH0216898B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
JP57227909A 1982-12-27 1982-12-27 フレネルレンズ Granted JPS59119340A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57227909A JPS59119340A (ja) 1982-12-27 1982-12-27 フレネルレンズ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57227909A JPS59119340A (ja) 1982-12-27 1982-12-27 フレネルレンズ

Publications (2)

Publication Number Publication Date
JPS59119340A JPS59119340A (ja) 1984-07-10
JPH0216898B2 true JPH0216898B2 (da) 1990-04-18

Family

ID=16868196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57227909A Granted JPS59119340A (ja) 1982-12-27 1982-12-27 フレネルレンズ

Country Status (1)

Country Link
JP (1) JPS59119340A (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152601A (ja) * 1984-08-22 1986-03-15 Mitsubishi Rayon Co Ltd フレネルレンズシ−ト
JPS6177832A (ja) * 1984-09-25 1986-04-21 Mitsubishi Electric Corp 透過形スクリ−ン
JPS61208041A (ja) * 1985-03-11 1986-09-16 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
JPS61256337A (ja) * 1985-05-10 1986-11-13 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
JPS6210637A (ja) * 1985-07-09 1987-01-19 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
JPS62113131A (ja) * 1985-11-13 1987-05-25 Mitsubishi Rayon Co Ltd 透過型スクリ−ン
JP3655970B2 (ja) * 1996-07-29 2005-06-02 大日本印刷株式会社 透過型スクリーン
JP2001337206A (ja) * 2000-05-26 2001-12-07 Toppan Printing Co Ltd フレネルレンズ
JP4014837B2 (ja) * 2001-10-05 2007-11-28 三菱電機株式会社 透過型スクリーンおよび投写型表示装置
US7072109B2 (en) * 2002-06-27 2006-07-04 Dai Nippon Printing Co., Ltd. Projection screen and projection display
JP2004170862A (ja) * 2002-11-22 2004-06-17 Dainippon Printing Co Ltd フレネルレンズ
EP1462852A1 (en) * 2002-11-26 2004-09-29 Mitsubishi Denki Kabushiki Kaisha Transparent screen and projection display apparatus
CN101907263B (zh) 2009-05-09 2013-08-28 西铁城电子股份有限公司 透镜部件和使用该透镜部件的光学单元
JP5626754B2 (ja) 2010-01-10 2014-11-19 シチズン電子株式会社 光学ユニット
JP5606137B2 (ja) 2010-04-27 2014-10-15 シチズン電子株式会社 光学ユニット
JP5649047B2 (ja) 2010-09-29 2015-01-07 シチズン電子株式会社 レンズ部材及び光学ユニット
WO2013024836A1 (ja) 2011-08-12 2013-02-21 シチズン電子株式会社 レンズ部材及びこのレンズ部材を使用した発光装置

Also Published As

Publication number Publication date
JPS59119340A (ja) 1984-07-10

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