DE9218854U1 - Light guide disc with interchangeable transparency - Google Patents

Light guide disc with interchangeable transparency

Info

Publication number
DE9218854U1
DE9218854U1 DE9218854U DE9218854U DE9218854U1 DE 9218854 U1 DE9218854 U1 DE 9218854U1 DE 9218854 U DE9218854 U DE 9218854U DE 9218854 U DE9218854 U DE 9218854U DE 9218854 U1 DE9218854 U1 DE 9218854U1
Authority
DE
Germany
Prior art keywords
interchangeable
transparency
light guide
guide disc
disc
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.)
Expired - Lifetime
Application number
DE9218854U
Other languages
German (de)
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.)
Dr Ing Willing GmbH
Original Assignee
Dr Ing Willing GmbH
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 Dr Ing Willing GmbH filed Critical Dr Ing Willing GmbH
Priority to DE9218854U priority Critical patent/DE9218854U1/en
Publication of DE9218854U1 publication Critical patent/DE9218854U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02B6/0011—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
    • G02B6/0035—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
    • G02B6/0058—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)
DE9218854U 1992-02-20 1992-02-20 Light guide disc with interchangeable transparency Expired - Lifetime DE9218854U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9218854U DE9218854U1 (en) 1992-02-20 1992-02-20 Light guide disc with interchangeable transparency

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9218854U DE9218854U1 (en) 1992-02-20 1992-02-20 Light guide disc with interchangeable transparency
DE4205136A DE4205136A1 (en) 1992-02-20 1992-02-20 Indicator light for emergency use

Publications (1)

Publication Number Publication Date
DE9218854U1 true DE9218854U1 (en) 1995-10-12

Family

ID=6452153

Family Applications (2)

Application Number Title Priority Date Filing Date
DE9218854U Expired - Lifetime DE9218854U1 (en) 1992-02-20 1992-02-20 Light guide disc with interchangeable transparency
DE4205136A Withdrawn DE4205136A1 (en) 1991-09-03 1992-02-20 Indicator light for emergency use

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE4205136A Withdrawn DE4205136A1 (en) 1991-09-03 1992-02-20 Indicator light for emergency use

Country Status (1)

Country Link
DE (2) DE9218854U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746854A1 (en) * 1997-10-23 1999-05-12 Willing Gmbh Dr Ing Escape indication light with light emitting diodes for emergency operation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886911A (en) * 1953-07-23 1959-05-19 George K C Hardesty Duo-panel edge illumination system
FR2346795A1 (en) * 1976-04-01 1977-10-28 Regie Autonome Transports Glazed illuminated display panel - contains as diffusor a surface-treated highly refractive transparent plate, pref. of PMMA, lit from the edge
DE3223706C2 (en) * 1982-06-25 1989-03-02 Gerhard Dipl.-Phys. 8702 Himmelstadt De Karl
US4949489A (en) * 1987-12-28 1990-08-21 Rudell Elliot A Edge-lit multiple image display device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2886911A (en) * 1953-07-23 1959-05-19 George K C Hardesty Duo-panel edge illumination system
FR2346795A1 (en) * 1976-04-01 1977-10-28 Regie Autonome Transports Glazed illuminated display panel - contains as diffusor a surface-treated highly refractive transparent plate, pref. of PMMA, lit from the edge
DE3223706C2 (en) * 1982-06-25 1989-03-02 Gerhard Dipl.-Phys. 8702 Himmelstadt De Karl
US4949489A (en) * 1987-12-28 1990-08-21 Rudell Elliot A Edge-lit multiple image display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746854A1 (en) * 1997-10-23 1999-05-12 Willing Gmbh Dr Ing Escape indication light with light emitting diodes for emergency operation

Also Published As

Publication number Publication date
DE4205136A1 (en) 1993-08-26

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