FR1285829A - Light distribution lens system - Google Patents
Light distribution lens systemInfo
- 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
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)
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)
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 |
-
1961
- 1961-04-07 FR FR858096A patent/FR1285829A/en not_active Expired
Cited By (5)
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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