FR1099080A - Improvements to lighting devices for dials or the like - Google Patents

Improvements to lighting devices for dials or the like

Info

Publication number
FR1099080A
FR1099080A FR1099080DA FR1099080A FR 1099080 A FR1099080 A FR 1099080A FR 1099080D A FR1099080D A FR 1099080DA FR 1099080 A FR1099080 A FR 1099080A
Authority
FR
France
Prior art keywords
dials
lighting devices
lighting
devices
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
Application number
Other languages
French (fr)
Inventor
Fevrot
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.)
TECH ELECTRONIQUE
Original Assignee
TECH ELECTRONIQUE
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 TECH ELECTRONIQUE filed Critical TECH ELECTRONIQUE
Application granted granted Critical
Publication of FR1099080A publication Critical patent/FR1099080A/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
    • G02B6/0001—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
    • 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
    • G—PHYSICS
    • G12—INSTRUMENT DETAILS
    • G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G12B11/00—Indicating elements; Illumination thereof
    • G12B11/02—Scales; Dials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1099080D 1954-02-05 1954-02-05 Improvements to lighting devices for dials or the like Expired FR1099080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1099080T 1954-02-05

Publications (1)

Publication Number Publication Date
FR1099080A true FR1099080A (en) 1955-08-30

Family

ID=9619560

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1099080D Expired FR1099080A (en) 1954-02-05 1954-02-05 Improvements to lighting devices for dials or the like

Country Status (1)

Country Link
FR (1) FR1099080A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418956A1 (en) * 1978-03-04 1979-09-28 Nissan Motor COUNTER SYSTEMS TO INDICATE SEVERAL VARIABLES USING A SINGLE COUNTER
US5013893A (en) * 1988-09-14 1991-05-07 E.G.O. Elektro-Gerate Blanc U. Fischer Heating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418956A1 (en) * 1978-03-04 1979-09-28 Nissan Motor COUNTER SYSTEMS TO INDICATE SEVERAL VARIABLES USING A SINGLE COUNTER
US5013893A (en) * 1988-09-14 1991-05-07 E.G.O. Elektro-Gerate Blanc U. Fischer Heating device

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