BE795975A - Dispositif d'affichage d'un point sur un ecran transparent ou translucide - Google Patents
Dispositif d'affichage d'un point sur un ecran transparent ou translucideInfo
- Publication number
- BE795975A BE795975A BE128114A BE128114A BE795975A BE 795975 A BE795975 A BE 795975A BE 128114 A BE128114 A BE 128114A BE 128114 A BE128114 A BE 128114A BE 795975 A BE795975 A BE 795975A
- Authority
- BE
- Belgium
- Prior art keywords
- dot
- transparent
- display device
- translucent screen
- translucent
- Prior art date
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
- G02B6/002—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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/02—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
-
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
- G09F2013/1804—Achieving homogeneous illumination
- G09F2013/1831—Achieving homogeneous illumination using more than one light source
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Lasers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7211578A FR2178444A5 (de) | 1972-03-31 | 1972-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE795975A true BE795975A (fr) | 1973-06-18 |
Family
ID=9096209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE128114A BE795975A (fr) | 1972-03-31 | 1973-02-26 | Dispositif d'affichage d'un point sur un ecran transparent ou translucide |
Country Status (6)
Country | Link |
---|---|
US (1) | US3838917A (de) |
BE (1) | BE795975A (de) |
DE (1) | DE2311330C3 (de) |
FR (1) | FR2178444A5 (de) |
GB (1) | GB1394541A (de) |
NL (1) | NL177948C (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19802165A1 (de) * | 1998-01-21 | 1999-07-22 | Man Systemelektronik Gmbh | Anordnung zum gleichmäßigen Be- bzw. Ausleuchten einer Fläche zum Anzeigen von Informationen |
DE19812090C2 (de) | 1998-03-19 | 2000-03-09 | Daimler Chrysler Ag | Mehrzylindrische Kolbenbrennkraftmaschine mit mindestens zwei Zylinderbänken |
FR2856159B1 (fr) * | 2003-06-16 | 2005-09-09 | Laurent Lipiner | Systeme et procede pour visualiser un contenu image sur une surface transparente, et revetements de surface adaptes. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1302353A (en) * | 1917-09-20 | 1919-04-29 | Conrad Friedrich | Luminous hair-line. |
US2584777A (en) * | 1949-04-18 | 1952-02-05 | George S Adolfson | Clearance indicating arm |
US2898880A (en) * | 1956-10-04 | 1959-08-11 | Jr Perry B Newton | Single panel illuminated instrument dial |
-
1972
- 1972-03-31 FR FR7211578A patent/FR2178444A5/fr not_active Expired
-
1973
- 1973-02-26 BE BE128114A patent/BE795975A/xx unknown
- 1973-03-05 GB GB1055273A patent/GB1394541A/en not_active Expired
- 1973-03-07 DE DE2311330A patent/DE2311330C3/de not_active Expired
- 1973-03-30 US US00346567A patent/US3838917A/en not_active Expired - Lifetime
- 1973-03-30 NL NLAANVRAGE7304443,A patent/NL177948C/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE2311330A1 (de) | 1973-10-04 |
NL177948C (nl) | 1985-12-16 |
NL7304443A (de) | 1973-10-02 |
DE2311330B2 (de) | 1975-05-07 |
FR2178444A5 (de) | 1973-11-09 |
GB1394541A (en) | 1975-05-21 |
US3838917A (en) | 1974-10-01 |
DE2311330C3 (de) | 1975-12-11 |
NL177948B (nl) | 1985-07-16 |
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