JPS57141602A - Light shield - Google Patents

Light shield

Info

Publication number
JPS57141602A
JPS57141602A JP56197803A JP19780381A JPS57141602A JP S57141602 A JPS57141602 A JP S57141602A JP 56197803 A JP56197803 A JP 56197803A JP 19780381 A JP19780381 A JP 19780381A JP S57141602 A JPS57141602 A JP S57141602A
Authority
JP
Japan
Prior art keywords
slats
screen
converge
support frame
optical filter
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.)
Pending
Application number
JP56197803A
Other languages
English (en)
Inventor
Sofutorii Piitaa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of JPS57141602A publication Critical patent/JPS57141602A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/89—Optical components associated with the vessel
    • H01J2229/8901—Fixing of optical components to the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/89—Optical components associated with the vessel
    • H01J2229/8909—Baffles, shutters, apertures or the like against external light
    • H01J2229/8911—Large-scale devices, e.g. foldable screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Glass Compositions (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Blinds (AREA)
JP56197803A 1980-12-10 1981-12-10 Light shield Pending JPS57141602A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/214,710 US4365866A (en) 1980-12-10 1980-12-10 Light masking device

Publications (1)

Publication Number Publication Date
JPS57141602A true JPS57141602A (en) 1982-09-02

Family

ID=22800138

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56197803A Pending JPS57141602A (en) 1980-12-10 1981-12-10 Light shield

Country Status (6)

Country Link
US (1) US4365866A (ja)
EP (1) EP0053922B1 (ja)
JP (1) JPS57141602A (ja)
AT (1) ATE11966T1 (ja)
CA (1) CA1155694A (ja)
DE (1) DE3169118D1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016526184A (ja) * 2013-05-19 2016-09-01 エルビット・システムズ・リミテッド 反射低減用に設計された電子表示器

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6464970A (en) * 1987-09-04 1989-03-10 Minolta Camera Kk Sorter provided with finisher
GB2261303B (en) * 1989-03-31 1993-09-15 Asahi Optical Co Ltd Zooming adjustment of a zoom lens
CA2023264C (en) * 1989-08-31 1995-03-21 John J. Ferrer Louvered reflective head-up display for automobiles
GB2238393B (en) * 1989-11-09 1994-06-01 Asahi Optical Co Ltd Lens barrel shield
DK170491B1 (da) * 1993-07-07 1995-09-18 Flemming Sejr Brockmann 3-dimensionalt tv
US5614973A (en) * 1993-11-30 1997-03-25 Asahi Kogaku Kogyo Kabushiki Kaisha Lens barrier mechanism
US7686462B2 (en) * 1997-06-09 2010-03-30 Tenebraex Corporation Methods for reflection reductions
US20090242142A1 (en) * 2008-04-01 2009-10-01 International Business Machines Corporation Privacy screen for a display device
CN104090378B (zh) * 2014-07-11 2016-06-08 京东方科技集团股份有限公司 一种防窥装置及防窥方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1400926A (en) * 1921-12-20 Headlight
FR462817A (fr) * 1912-09-21 1914-02-05 Cie Generale D Electricite De Dispositif pour régler des sources lumineuses closes
US2388203A (en) * 1942-09-10 1945-10-30 Philco Radio & Television Corp Viewing device for cathode-ray tube screens and the like
US3049962A (en) * 1955-10-03 1962-08-21 Baulio Ets Method and apparatus for eliminating the dazzling effect of strong sources of light, particularly for automotive vehicles
US3295968A (en) * 1962-06-11 1967-01-03 Douglas Aircraft Co Inc Light trapping filter and method of making
BE632617A (ja) * 1962-10-15
FR2213485A1 (ja) * 1973-01-05 1974-08-02 Bellini Marcel
DE2317642A1 (de) * 1973-04-07 1974-10-17 Licentia Gmbh Kontrasterhoehendes filter fuer bildwiedergabegeraete

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016526184A (ja) * 2013-05-19 2016-09-01 エルビット・システムズ・リミテッド 反射低減用に設計された電子表示器
US11933978B2 (en) 2013-05-19 2024-03-19 Elbit Systems Ltd. Electronic display designed for reduced reflections

Also Published As

Publication number Publication date
ATE11966T1 (de) 1985-03-15
EP0053922B1 (en) 1985-02-20
CA1155694A (en) 1983-10-25
DE3169118D1 (en) 1985-03-28
US4365866A (en) 1982-12-28
EP0053922A1 (en) 1982-06-16

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