IT1095891B - Pannelli indicatori - Google Patents

Pannelli indicatori

Info

Publication number
IT1095891B
IT1095891B IT23483/78A IT2348378A IT1095891B IT 1095891 B IT1095891 B IT 1095891B IT 23483/78 A IT23483/78 A IT 23483/78A IT 2348378 A IT2348378 A IT 2348378A IT 1095891 B IT1095891 B IT 1095891B
Authority
IT
Italy
Prior art keywords
indicator panels
panels
indicator
Prior art date
Application number
IT23483/78A
Other languages
English (en)
Other versions
IT7823483A0 (it
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of IT7823483A0 publication Critical patent/IT7823483A0/it
Application granted granted Critical
Publication of IT1095891B publication Critical patent/IT1095891B/it

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
    • G02B6/0033—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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
IT23483/78A 1977-05-24 1978-05-17 Pannelli indicatori IT1095891B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2174777 1977-05-24

Publications (2)

Publication Number Publication Date
IT7823483A0 IT7823483A0 (it) 1978-05-17
IT1095891B true IT1095891B (it) 1985-08-17

Family

ID=10168119

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23483/78A IT1095891B (it) 1977-05-24 1978-05-17 Pannelli indicatori

Country Status (3)

Country Link
DE (1) DE2822385A1 (it)
FR (1) FR2392460A1 (it)
IT (1) IT1095891B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292951A (en) * 1979-02-09 1981-10-06 Gould George E Fireplaces and attachments
FR2539240B3 (fr) * 1983-01-06 1985-10-25 Husson Michel Tableau synoptique a schema lumineux

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712188A (en) * 1953-04-13 1955-07-05 Edwin A Neugass Instrument panel
FR1135347A (fr) * 1955-04-25 1957-04-26 Plasteck Tableau lumineux et procédé de fabrication de ce tableau
GB801526A (en) * 1956-01-19 1958-09-17 Fairey Aviat Co Ltd Improvements relating to indicating panels
FR1263414A (fr) * 1960-04-30 1961-06-09 Nec S A Perfectionnements à l'éclairage nocturne des cadrans gravés éclairés par la tranche
FR2054877A5 (en) * 1969-07-30 1971-05-07 Arfina Luminous panels illuminated through their section

Also Published As

Publication number Publication date
IT7823483A0 (it) 1978-05-17
DE2822385A1 (de) 1978-11-30
FR2392460A1 (fr) 1978-12-22

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