FR1285829A - Light distribution lens system - Google Patents

Light distribution lens system

Info

Publication number
FR1285829A
FR1285829A FR858096A FR858096A FR1285829A FR 1285829 A FR1285829 A FR 1285829A FR 858096 A FR858096 A FR 858096A FR 858096 A FR858096 A FR 858096A FR 1285829 A FR1285829 A FR 1285829A
Authority
FR
France
Prior art keywords
lens system
light distribution
distribution lens
light
lens
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
FR858096A
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Priority to FR858096A priority Critical patent/FR1285829A/en
Application granted granted Critical
Publication of FR1285829A publication Critical patent/FR1285829A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • G04G9/0041—Illumination devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/30—Illumination of dials or hands

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
FR858096A 1961-04-07 1961-04-07 Light distribution lens system Expired FR1285829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR858096A FR1285829A (en) 1961-04-07 1961-04-07 Light distribution lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR858096A FR1285829A (en) 1961-04-07 1961-04-07 Light distribution lens system

Publications (1)

Publication Number Publication Date
FR1285829A true FR1285829A (en) 1962-02-23

Family

ID=8752603

Family Applications (1)

Application Number Title Priority Date Filing Date
FR858096A Expired FR1285829A (en) 1961-04-07 1961-04-07 Light distribution lens system

Country Status (1)

Country Link
FR (1) FR1285829A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017922A1 (en) * 1979-04-13 1980-10-29 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Diffusing surface structure for a light guide in an information display device
EP0860755A1 (en) * 1997-02-20 1998-08-26 Asulab S.A. Device for uniformly illuminating the dial of a display apparatus
US5984485A (en) * 1997-02-19 1999-11-16 Asulab S.A. Uniform illumination device for the dial of a display device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017922A1 (en) * 1979-04-13 1980-10-29 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Diffusing surface structure for a light guide in an information display device
FR2454135A1 (en) * 1979-04-13 1980-11-07 Suisse Horlogerie DIFFUSING SURFACE STRUCTURE FOR AN INFORMATION DISPLAY LIGHT GUIDE
US4310219A (en) * 1979-04-13 1982-01-12 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Light diffusing surface structure for a light guide in an information display
US5984485A (en) * 1997-02-19 1999-11-16 Asulab S.A. Uniform illumination device for the dial of a display device
EP0860755A1 (en) * 1997-02-20 1998-08-26 Asulab S.A. Device for uniformly illuminating the dial of a display apparatus

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