DE2416621A1 - Markings carrying device - has holes for operating elements and a light guiding plate - Google Patents
Markings carrying device - has holes for operating elements and a light guiding plateInfo
- Publication number
- DE2416621A1 DE2416621A1 DE2416621A DE2416621A DE2416621A1 DE 2416621 A1 DE2416621 A1 DE 2416621A1 DE 2416621 A DE2416621 A DE 2416621A DE 2416621 A DE2416621 A DE 2416621A DE 2416621 A1 DE2416621 A1 DE 2416621A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- guide plate
- light guide
- plate
- markings
- 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.)
- Ceased
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
- 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
- G03B21/14—Details
- G03B21/26—Projecting separately subsidiary matter simultaneously with main image
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
Abstract
Description
Gerät mit einem Kennzeichenträger Die Erfindung betrifft ein Gerät mit einem Kennzeichenträger, der DurchbrUche fUr Bedienungselemente besitzt. Device with a label carrier The invention relates to a device with a license plate holder that has openings for operating elements.
Kennzeichenträger der bekannten Art sind nur schwer ablesbar, wenn sie an Geräten verwendet sind, die vorwiegend in mindestens teilweise abgedunkelten Räumen eingesetzt werden. Hierzu zählen, z. B.License plate carriers of the known type are difficult to read when they are used on devices that are predominantly in at least partially darkened areas Spaces are used. These include, B.
alle Arten von Bildprojektionsgeräten .all kinds of image projection equipment.
Um Skalen und sonstige Kennzeichen sowie diesen zugeordnete Anzeiger besser sichtbar zu machen, wurden die Kennzeichen schon auf durchsichtige Platten aufgebracht und durch einen vorzugsweise keilförmigen Lichtleiter von der Geräteinnenseite her erleuchtet.Around scales and other indicators as well as indicators assigned to them To make it easier to see, the license plates were already on transparent plates applied and through a preferably wedge-shaped light guide from the inside of the device enlightened here.
Solche Lösungen blieben infolge ihrer noch verhältnismässig grossen Strahlungsintensität dann hinter den in sie gesetzten Erwartungen zurück, wenn die Geräte an denen sie angewendet wurden in irgendeiner Form der Lichtbildwiedergabe dienen. Die verhältnismässig hell strahlende Anzeigefläche störte beim Betrachten des Lichtbildes.Such solutions remained because of their relatively large size Radiation intensity then falls short of the expectations placed in it, if the Devices on which they were used in some form of photo reproduction to serve. The relatively bright display surface was annoying when looking at it of the photograph.
Weiter war es bei diesen Konstruktionen nur schwer möglich, Bedienungselemente direkt innerhalb der Anzeigefläche anzuordnen.Furthermore, with these constructions it was difficult to control elements to be arranged directly within the display area.
Auf diese für die Handhabung der Bedienungselemente an sich vorteilhafte Anordnung musste verzichtet werden, weil die so angeordneten Bedienungselemente und die für sie benötigten Durchbrüche in der als Kennzeichenträger dienenden Platte und dem Lichtleiter eine gleichmässige Ausleuchtung aller Kennzeichen nicht zuliessen.On this advantageous for the handling of the controls Arrangement had to be dispensed with because the operating elements were arranged in this way and the openings required for them in the plate serving as a label carrier and the light guide do not allow uniform illumination of all license plates.
Der Erfindung lag die Aufgabe zugrunde, diesen Mangel zu beseitigen und mit einfachsten Mitteln für ein gut ablesbares, aber nicht störend strahlendes Kennzeichenfeld mit erleuchteten Kennzeichen zu sorgen, in das auch Bedienungselemente flirdasGerät mit dem Kennzeichenträger vorteilhaft einbezogen werden können.The invention was based on the object of eliminating this deficiency and with the simplest means for an easily readable, but not annoyingly radiant one Provide license plate with illuminated license plates, in which also operating elements The device with the license plate holder can advantageously be included.
Erfindungsgemäss wird diese Aufgabe dadurch erfüllt, dass dem Gerät eine Lichtleitplatte zugeordnet ist, die die Kennzeichen beim Einleiten von Flutlicht erleuchtet und reflektierende Flächen aufweist, die von einer im wesentlichen punktförmigen Lichtquelle ausgehendes Licht zu Kennzeichen lenken, deren direkte Beleuchtung durch zwischen ihnen und der Lichtquelle liegende Durchbrüche in der Lichtleitplatte verhindert wird.According to the invention, this object is achieved in that the device a light guide plate is assigned, which is the indicator when the floodlights are introduced Illuminated and has reflective surfaces by a substantially punctiform Light source direct outgoing light to license plates, illuminate them directly Prevents breakthroughs in the light guide plate lying between them and the light source will.
In weiterer Ausbildung des Erfindungsgegenstandes kann die Lichtleitplatte selbst als Kennzeichenträger ausgebildet sein. Daraus ergibt sich eine zweckmässige Vereinfachung des Aufbaus und eine angenehme Ausleuchtung der Kennzeichen, die trotz guter Ablesbarkeit dieser Zeichen auch bei Lichtbildwiedergabe nicht störend wirkt.In a further embodiment of the subject matter of the invention, the light guide plate even be designed as a license plate carrier. This results in a useful one Simplification of the structure and a pleasant illumination of the license plate, which despite good readability of these characters does not interfere with the reproduction of photos.
Schliesslich kann eine besonders einfache Herstellung der erfindungsgemässen Lichtleitplatte dadurch erreicht werden, dass die Neigung der reflektierenden Flächen vorzugsweise zur Mehrzahl der auf sie treffenden Lichtstrahlen und das Material der Lichtleitplatte so gewählt sind, dass für diese Lichtstrahlen die Bedingungen der Totalreflexion erfüllt sind.Finally, a particularly simple production of the inventive Light guide plate can be achieved by reducing the inclination of the reflective surfaces preferably to the majority of the light rays impinging on them and the material the light guide plate are chosen so that the conditions for these light rays total reflection are fulfilled.
Die Ausnutzung der verwendeten Lichtquelle kann dadurch besonders günstig beeinflusst werden, dass die Lichtleitplatte die Lichtquelle wenigstens teilweise umschliesst.The utilization of the light source used can thereby be particularly good be favorably influenced that the light guide plate at least the light source partially encloses.
Im folgenden soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. Auf die Darstellung nicht erfindungswesentlicher Einzelheiten wurde zugunsten besserer Ubersichtlichkeit- verzichtet.In the following, the invention will be described in more detail using an exemplary embodiment explained. The presentation of details that are not essential to the invention was waived in favor of better clarity.
Es zeigen: Fig. 1 eine als Kennzeichenträger ausgebildete Lichtleitplatte nach der Erfindung, für ein Gerät der eingangs beschriebenen Art, Fig. 2 eine Seitenansicht zu Figur 1, teilweise geschnitten.1 shows a light guide plate designed as a license plate carrier according to the invention, for a device of the type described in the opening paragraph, Fig. 2 is a side view to Figure 1, partially cut.
Eine als Kennzeichenträger ausgebildete Lichtleitplatte 1 besitzt, neben einer Mehrzahl von Kennzeichenreihen 2, langgezogene Durchbrüche 3, in denen hier nicht dargestellte Betätigungshandhaben für sogenannte Schieberegler bewegt werden können, wenn die Lichtleitplatte 1 in ein Gerät eingesetzt ist. In einer der seitlichen Begrenzungsflächen der Lichtleitplatte 1 sind zwei Ausnehmungen 4 für zwei Lämpchen 5 vorgesehen, die als annähernd punktförmige Lichtquellen dienen. Die gleiche seitliche Begrenzungsfläche ist in der Nachbarschaft der Ausnehmungen 4 aus einer Mehrzahl verschieden geneigter Spiegelflächen 6 bis 18 gebildet. Die der seitlichen Begrenzungsfläche mit den Ausnehmungen 4 gegenüberliegende Begrenzungsfläche 19 der Platte 1 bildet eine halbzylinderförmige Spiegelfläche. An dieser Begrenzungsfläche 19 und der Spiegelfläche 14 ist der mögliche Einsatz lichtsammelnder, reflektierender Flächen an einer erfindungsgemäss ausgebildeten Lichtleitplatte demonstriert.Has a light guide plate 1 designed as a license plate carrier, in addition to a plurality of rows of license plates 2, elongated openings 3 in which here not shown operating handle for so-called slider moves can be when the light guide plate 1 is inserted into a device. In a the lateral boundary surfaces of the light guide plate 1 are two recesses 4 provided for two lamps 5, which serve as approximately point-shaped light sources. The same lateral boundary surface is in the vicinity of the recesses 4 formed from a plurality of differently inclined mirror surfaces 6 to 18. the the lateral boundary surface with the recesses 4 opposite boundary surface 19 of the plate 1 forms a semi-cylindrical mirror surface. At this boundary 19 and the mirror surface 14 is the possible use of light-collecting, reflective Areas demonstrated on a light guide plate designed according to the invention.
Die in die Lichtleitplatte 1 eingezeichneten Pfeile zeigen eine Auswahl von Lichtstrahlen, die, teilweise mehrfach reflektiert, die Kennzeichenreihen 2 erleuchten, obwohl die Durchbrüche 3 einer direkten Beleuchtung durch die Lämpchen 5 teilweise im Wege sind.The arrows drawn in the light guide plate 1 show a selection of light rays, which are partially reflected multiple times, the number plate rows 2 illuminate, although the breakthroughs 3 are directly illuminated by the lamp 5 are partially in the way.
Claims (6)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2416621A DE2416621A1 (en) | 1974-04-05 | 1974-04-05 | Markings carrying device - has holes for operating elements and a light guiding plate |
AT65775A ATA65775A (en) | 1974-04-05 | 1975-01-29 | UNIT WITH A LICENSE PLATE HOLDER |
IT2178775A IT1034683B (en) | 1974-04-05 | 1975-03-28 | APPLIANCE WITH A CHECKOUT HOLDER. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2416621A DE2416621A1 (en) | 1974-04-05 | 1974-04-05 | Markings carrying device - has holes for operating elements and a light guiding plate |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2416621A1 true DE2416621A1 (en) | 1975-10-16 |
Family
ID=5912240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2416621A Ceased DE2416621A1 (en) | 1974-04-05 | 1974-04-05 | Markings carrying device - has holes for operating elements and a light guiding plate |
Country Status (3)
Country | Link |
---|---|
AT (1) | ATA65775A (en) |
DE (1) | DE2416621A1 (en) |
IT (1) | IT1034683B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0446324A1 (en) * | 1989-10-02 | 1991-09-18 | Motorola Inc | Backlighting apparatus. |
FR2720181A1 (en) * | 1994-05-18 | 1995-11-24 | Sorelec | Display panel for advertising board |
-
1974
- 1974-04-05 DE DE2416621A patent/DE2416621A1/en not_active Ceased
-
1975
- 1975-01-29 AT AT65775A patent/ATA65775A/en not_active IP Right Cessation
- 1975-03-28 IT IT2178775A patent/IT1034683B/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0446324A1 (en) * | 1989-10-02 | 1991-09-18 | Motorola Inc | Backlighting apparatus. |
EP0446324A4 (en) * | 1989-10-02 | 1993-06-30 | Motorola, Inc. | Backlighting apparatus |
FR2720181A1 (en) * | 1994-05-18 | 1995-11-24 | Sorelec | Display panel for advertising board |
BE1008750A3 (en) * | 1994-05-18 | 1996-07-02 | Sorelec | Panel display and signal. |
Also Published As
Publication number | Publication date |
---|---|
ATA65775A (en) | 1978-05-15 |
IT1034683B (en) | 1979-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
8131 | Rejection |