FR2450489A1 - Illumination display using light conductors - has air gap and thermal barriers in screen provided with synthetic monofilament optical fibres - Google Patents

Illumination display using light conductors - has air gap and thermal barriers in screen provided with synthetic monofilament optical fibres

Info

Publication number
FR2450489A1
FR2450489A1 FR7905331A FR7905331A FR2450489A1 FR 2450489 A1 FR2450489 A1 FR 2450489A1 FR 7905331 A FR7905331 A FR 7905331A FR 7905331 A FR7905331 A FR 7905331A FR 2450489 A1 FR2450489 A1 FR 2450489A1
Authority
FR
France
Prior art keywords
display
air gap
synthetic monofilament
optical fibres
screen provided
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
FR7905331A
Other languages
French (fr)
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.)
FERET DIDIER
Original Assignee
FERET DIDIER
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 FERET DIDIER filed Critical FERET DIDIER
Priority to FR7905331A priority Critical patent/FR2450489A1/en
Priority to JP9967279A priority patent/JPS55118003A/en
Publication of FR2450489A1 publication Critical patent/FR2450489A1/en
Pending legal-status Critical Current

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
    • G02B6/0005—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 of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • 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
    • G02B6/0005—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 of the fibre type
    • G02B6/0008—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 of the fibre type the light being emitted at the end of the fibre
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • 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
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/305—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being the ends of optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

The animated or static illuminated display uses synthetic monofilament light guides to provide a display up to about one metre square. The filament length is limited to about 60 cm to minimise attenuation with a diameter between 0.5 and 1.0mm. The filaments are brought together (5) from the display (8) into a group with their end faces polished and squared forming a screen occupying an area matching that projected by the light source (2). The light source is a bulb up to about 20W and parabolic reflector powered from a transformer (1). Heat isolation from the filament end faces is by an air gap and transparent screen (3). The display data is supplied by a rotating and perforated disc (6) set close to the filament ends. Groups of these units can be built up to provide a larger display.
FR7905331A 1979-03-01 1979-03-01 Illumination display using light conductors - has air gap and thermal barriers in screen provided with synthetic monofilament optical fibres Pending FR2450489A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7905331A FR2450489A1 (en) 1979-03-01 1979-03-01 Illumination display using light conductors - has air gap and thermal barriers in screen provided with synthetic monofilament optical fibres
JP9967279A JPS55118003A (en) 1979-03-01 1979-08-03 Illumination indicating device having photo induction material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7905331A FR2450489A1 (en) 1979-03-01 1979-03-01 Illumination display using light conductors - has air gap and thermal barriers in screen provided with synthetic monofilament optical fibres

Publications (1)

Publication Number Publication Date
FR2450489A1 true FR2450489A1 (en) 1980-09-26

Family

ID=9222629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905331A Pending FR2450489A1 (en) 1979-03-01 1979-03-01 Illumination display using light conductors - has air gap and thermal barriers in screen provided with synthetic monofilament optical fibres

Country Status (2)

Country Link
JP (1) JPS55118003A (en)
FR (1) FR2450489A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0348619A2 (en) * 1988-06-30 1990-01-03 Schölly Fiberoptic Gmbh Variable sign

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2263281A (en) * 1940-07-22 1941-11-18 Tadden Victor H A Von Aparatus for display signs, scoreboards, and the like
US3638008A (en) * 1969-04-29 1972-01-25 Amp Inc Multiple light transmission from a single light source
FR2118317A5 (en) * 1970-12-17 1972-07-28 Sagem
FR2189761A1 (en) * 1972-06-21 1974-01-25 Rank Organisation Ltd
US4025779A (en) * 1975-04-28 1977-05-24 Ahroni Joseph M Optic fiber decorative device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2263281A (en) * 1940-07-22 1941-11-18 Tadden Victor H A Von Aparatus for display signs, scoreboards, and the like
US3638008A (en) * 1969-04-29 1972-01-25 Amp Inc Multiple light transmission from a single light source
FR2118317A5 (en) * 1970-12-17 1972-07-28 Sagem
FR2189761A1 (en) * 1972-06-21 1974-01-25 Rank Organisation Ltd
US4025779A (en) * 1975-04-28 1977-05-24 Ahroni Joseph M Optic fiber decorative device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0348619A2 (en) * 1988-06-30 1990-01-03 Schölly Fiberoptic Gmbh Variable sign
EP0348619A3 (en) * 1988-06-30 1990-08-08 Schölly Fiberoptic Gmbh Variable sign

Also Published As

Publication number Publication date
JPS55118003A (en) 1980-09-10

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