GB2016132A - Filter combination for fibre optic systems - Google Patents

Filter combination for fibre optic systems

Info

Publication number
GB2016132A
GB2016132A GB7903736A GB7903736A GB2016132A GB 2016132 A GB2016132 A GB 2016132A GB 7903736 A GB7903736 A GB 7903736A GB 7903736 A GB7903736 A GB 7903736A GB 2016132 A GB2016132 A GB 2016132A
Authority
GB
United Kingdom
Prior art keywords
filter
light
main
colour
source
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.)
Granted
Application number
GB7903736A
Other versions
GB2016132B (en
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of GB2016132A publication Critical patent/GB2016132A/en
Application granted granted Critical
Publication of GB2016132B publication Critical patent/GB2016132B/en
Expired 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/04—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for filtering out infrared radiation
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Filters (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Compositions (AREA)

Abstract

A light conduction system comprises a light source 1 a first or main colour filter 3, a second colour filter 2 between source 1 and filter 3, and an optical fibre bundle light conductor having an input end 4. The second colour filter 2 serves to filter light from the source 1 before the light reaches the main filter 3 so as to minimise light absorption and therefore heating of the main filter 3. Thus, the transmission characteristics of the main filter 3 remain constant in use. One or both of the filters 2 and 3 may be formed of check or thermal reaction colour-glasses. <IMAGE>
GB7903736A 1978-03-09 1979-02-02 Filter combination for fibre optics systems Expired GB2016132B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2810209A DE2810209C2 (en) 1978-03-09 1978-03-09 Filter combination for use in a fiber optic light guide system

Publications (2)

Publication Number Publication Date
GB2016132A true GB2016132A (en) 1979-09-19
GB2016132B GB2016132B (en) 1982-05-06

Family

ID=6033976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7903736A Expired GB2016132B (en) 1978-03-09 1979-02-02 Filter combination for fibre optics systems

Country Status (5)

Country Link
CH (1) CH634138A5 (en)
DE (1) DE2810209C2 (en)
FR (1) FR2419462A1 (en)
GB (1) GB2016132B (en)
NL (1) NL7812609A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115874A1 (en) * 1983-02-10 1984-08-15 Kei Mori Optical filter device
FR2582841A1 (en) * 1985-05-31 1986-12-05 Andres Fernando LUMINOUS ADVERTISING SIGNS USING OPTICAL FIBERS AND HAVING FIXED AND / OR VARIABLE COLOR LIGHTS
EP0340463A1 (en) * 1988-04-14 1989-11-08 Hoechst Aktiengesellschaft Fibre optics luminous sign
FR2670911A1 (en) * 1990-12-24 1992-06-26 Sopelem Infrared headlamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309108A1 (en) * 1993-03-22 1994-09-29 Guenter Dipl Ing Wuschik Bath-tub having an illuminated interior space
DE9308375U1 (en) * 1993-06-04 1994-10-13 Kampers Michael Lighting device
SE0001829D0 (en) * 2000-05-17 2000-05-17 Vaestra Goetalands Laens Lands ILLUMINATOR

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749901A (en) * 1970-03-02 1973-07-31 Poly Optics Optical fiber display
GB1344262A (en) * 1970-06-01 1974-01-16 Rank Organisation Ltd Optical signalling
DE2437580C2 (en) * 1974-08-05 1982-04-15 Schott Glaswerke, 6500 Mainz Signal display device for the emission of light signals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115874A1 (en) * 1983-02-10 1984-08-15 Kei Mori Optical filter device
FR2582841A1 (en) * 1985-05-31 1986-12-05 Andres Fernando LUMINOUS ADVERTISING SIGNS USING OPTICAL FIBERS AND HAVING FIXED AND / OR VARIABLE COLOR LIGHTS
EP0340463A1 (en) * 1988-04-14 1989-11-08 Hoechst Aktiengesellschaft Fibre optics luminous sign
FR2670911A1 (en) * 1990-12-24 1992-06-26 Sopelem Infrared headlamp

Also Published As

Publication number Publication date
DE2810209A1 (en) 1979-09-13
DE2810209C2 (en) 1986-01-16
NL7812609A (en) 1979-09-11
GB2016132B (en) 1982-05-06
FR2419462A1 (en) 1979-10-05
FR2419462B3 (en) 1981-12-31
CH634138A5 (en) 1983-01-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee