CH591705A5 - - Google Patents

Info

Publication number
CH591705A5
CH591705A5 CH1392175A CH1392175A CH591705A5 CH 591705 A5 CH591705 A5 CH 591705A5 CH 1392175 A CH1392175 A CH 1392175A CH 1392175 A CH1392175 A CH 1392175A CH 591705 A5 CH591705 A5 CH 591705A5
Authority
CH
Switzerland
Application number
CH1392175A
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Priority to CH1392175A priority Critical patent/CH591705A5/xx
Priority to DE19752552278 priority patent/DE2552278A1/en
Priority to AT798276A priority patent/AT345910B/en
Priority to JP51130011A priority patent/JPS5275198A/en
Publication of CH591705A5 publication Critical patent/CH591705A5/xx

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0018—Redirecting means on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
CH1392175A 1975-10-28 1975-10-28 CH591705A5 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1392175A CH591705A5 (en) 1975-10-28 1975-10-28
DE19752552278 DE2552278A1 (en) 1975-10-28 1975-11-21 Illumination of fluidic crystal display - has optical fibre block between light and display rear and input and output surfaces at angle to axis
AT798276A AT345910B (en) 1975-10-28 1976-10-27 LIGHTING ARRANGEMENT
JP51130011A JPS5275198A (en) 1975-10-28 1976-10-28 Illuminator for liquid crystal display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1392175A CH591705A5 (en) 1975-10-28 1975-10-28

Publications (1)

Publication Number Publication Date
CH591705A5 true CH591705A5 (en) 1977-09-30

Family

ID=4396486

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1392175A CH591705A5 (en) 1975-10-28 1975-10-28

Country Status (4)

Country Link
JP (1) JPS5275198A (en)
AT (1) AT345910B (en)
CH (1) CH591705A5 (en)
DE (1) DE2552278A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5414684U (en) * 1977-07-05 1979-01-30
EP0055317B1 (en) * 1980-12-31 1985-09-25 International Business Machines Corporation Electrochromic display module and reflective projection system therefor
DE3102626A1 (en) * 1981-01-27 1982-08-19 Siemens AG, 1000 Berlin und 8000 München "PASSIVE ELECTROOPTICAL DISPLAY DEVICE"
JPS57144580A (en) * 1981-03-03 1982-09-07 Mitsubishi Electric Corp Display unit with lighting
DE3207871A1 (en) * 1982-03-05 1983-09-15 Robert Bosch Gmbh, 7000 Stuttgart DISPLAY DEVICE, IN PARTICULAR FOR MOTOR VEHICLES
NO159899C (en) * 1986-03-25 1989-02-15 Kjell Hansen PICTURE VIEW SCREEN AND / OR RECORDING.
US4989956A (en) * 1989-01-04 1991-02-05 Hughes Aircraft Company Visual display device with fluorescent dye-doped edge-illuminating emitter panel
DE3919925A1 (en) * 1989-06-19 1990-12-20 Inotec Gmbh Ges Fuer Innovativ ILLUMINATED, DISPLAY UNIT, PARTICULARLY HOUSE NUMBER, TRAFFIC SIGN, ADVERTISER
JPH0365982A (en) * 1989-08-03 1991-03-20 Pioneer Electron Corp Display board illuminating device for display device
GB9026151D0 (en) * 1990-11-30 1991-01-16 Emi Plc Thorn Display device
DE4105547A1 (en) * 1991-02-22 1992-08-27 Hella Kg Hueck & Co Flat illuminated display esp. for symbols and lettering - has gap between translucent lettered cover and light conductive component cross=sectioned for diffuse reflection from rear face
DE19636459A1 (en) * 1996-09-07 1998-03-12 Telefunken Microelectron Illuminated display arrangement
JPH10260405A (en) * 1997-03-18 1998-09-29 Seiko Epson Corp Lighting device, liquid-crystal display device, and electronic equipment
DE19925363A1 (en) * 1999-06-02 2000-12-07 Hella Kg Hueck & Co Arrangement for directed output or introduction of light into light conductor, has at least part of transition surface between parallel boundaries with convex prismatic or convex cross-section
CN101228391B (en) * 2005-07-28 2010-09-29 光处方革新有限公司 Etendue-conserving illumination-optics device for backlights and frontlights
WO2008008994A2 (en) 2006-07-14 2008-01-17 Light Prescriptions Innovators, Llc Brightness-enhancing film
US20080260329A1 (en) * 2007-04-20 2008-10-23 3M Innovative Properties Company Lightguides having curved light injectors

Also Published As

Publication number Publication date
DE2552278A1 (en) 1977-05-05
JPS5275198A (en) 1977-06-23
ATA798276A (en) 1978-02-15
AT345910B (en) 1978-10-10

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Legal Events

Date Code Title Description
PL Patent ceased