DE2438108A1 - Illuminated push-button for communications equipment - has light emitting diode as signalling light - Google Patents
Illuminated push-button for communications equipment - has light emitting diode as signalling lightInfo
- Publication number
- DE2438108A1 DE2438108A1 DE2438108A DE2438108A DE2438108A1 DE 2438108 A1 DE2438108 A1 DE 2438108A1 DE 2438108 A DE2438108 A DE 2438108A DE 2438108 A DE2438108 A DE 2438108A DE 2438108 A1 DE2438108 A1 DE 2438108A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- button
- emitting diode
- light emitting
- key
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/002—Legends replaceable; adaptable
- H01H2219/014—LED
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2219/00—Legends
- H01H2219/036—Light emitting elements
- H01H2219/04—Attachments; Connections
Landscapes
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Leuchttaste insbesondere für Fernmeldeanlagen Die Erfindung bezieht sich auf eine Leuchttaste, insbesondere für Fernmeldeanlagen.Illuminated button in particular for telecommunication systems The invention relates on a lighted button, especially for telecommunication systems.
Bei Leuchttasten herkömmlicher Bauweise sind Glühlampen vorgesehen, die ein Beschriftungsfeld ausleuchten sollen.Incandescent lamps are provided for illuminated buttons of conventional design, which should illuminate a labeling field.
Die die Glühlampen umgebenden Formstoffteile müssen wegen der Wärmeentwicklung und des auftretenden Wärmestaues, insbesondere beim Aufleuchten mehrerer Leuchttasten nebeneinander, sorgfältig ausgewählt werden, wobei zumeist nur wärmebeständige und teure Formstoffe verwendet werden können.The molded parts surrounding the light bulbs must because of the heat development and the accumulation of heat that occurs, especially when several illuminated buttons light up next to each other, are carefully selected, mostly only heat-resistant and expensive molding materials can be used.
Es ist bereits bekannt, Leuchtdioden (LED) als Signalleuchten bei verschiedenen Geräten zu verwenden. Eine Verwendung der Leuchtdioden bei Leuchttasten ist insofern schwierig, als deren Leuchtkraft nicht ausreichend ist, um das Bezeichnungsfeld zu durchleuchten.It is already known to use light-emitting diodes (LED) as signal lights different devices to use. A use of the light-emitting diodes for lighted buttons is difficult in that its luminosity is insufficient to surround the label to x-ray.
Der Erfindung liegt die Aufgabe zugrunde, unter Vermeidung der angegebenen Schwierigkeiten die Ausstattung von Leuchttasten mit Leuchtdioden zu ermöglichen. Erfindungsgemäß wird dies bei einer Leuchttaste, insbesondere für Fernmeldeanlagen, bei der eine Leuchtdiode als Signalleuchte verwendet ist, dadurch erreicht, daß die Leuchtdiode an der vorderen Kante der Taste schräg nach vorn heraus stehend angebracht ist. Bei dieser Anordnung wird das Bezeichnungsfeld durch das bei fernmeldetechnischen Anlagen vorhandene Tageslicht oder die künstliche Raumbeleuchtung erhellt und die Leuchtdioden ergeben einen guten Signal effekt.The invention is based on the object, avoiding the specified Difficulties in equipping illuminated keys with light-emitting diodes. According to the invention, this is done with a lighted button, in particular for telecommunications systems, in which a light emitting diode is used as a signal lamp, achieved in that the light-emitting diode on the front edge of the button protrudes at an angle to the front is appropriate. In this arrangement, the designation field is replaced by the telecommunications technology The existing daylight or artificial room lighting illuminates the plants and that LEDs produce a good signal effect.
Dies wird erreicht durch den schrägen Einbau, der auf den Abstrahlwinkel von ca. 600 Rücksicht nimmt und dadurch einen großen Betrachtungswinkelbereich ergibt. Durch das Freistehen der Leuchtdioden werden außerdem Spiegelungseffekte vermieden. Da Leuchtdioden stoßunempfindlich sind, kann sich die Signallampe unmittelbar an der Tastenoberfläche mit bewegter Stromversorgung befinden, dadurch treten im Unterschied zu Glühlampen, die im Tastensockel fest angeordnet sind, bei der Betätigung keine Helligkeitsunterschiede auf. Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist die Leuchtdiode in einer Mulde angeordnet. Die Erfindung sieht weiterhin vor, daß die Mulde nach oben teilweise durch die ebenfalls mit einer Ausnehmung versehene Bezeichnungsscheibe überdeckt ist. Hierdurch wird erreicht, daß eine gute Sichtbarkeit der Signallampe vorhanden ist und trotzdem eine ausreichende Bedienungsfläche auf der Tastenoberfläche. Es ist weiterhin vorgesehen, daß die Tastenoberfläche nach hinten leicht geneigt angebracht ist.This is achieved through the inclined installation, which affects the beam angle of approx. 600 takes into account and thus results in a large viewing angle range. Because the light-emitting diodes are free, reflective effects are also avoided. Since light-emitting diodes are insensitive to shocks, the signal lamp can turn on immediately the key surface with a moving power supply, this makes a difference to incandescent lamps that are permanently arranged in the button base, none when pressed Differences in brightness. According to an advantageous embodiment of the invention the light-emitting diode is arranged in a trough. The invention also provides that the trough upwards partially through the also provided with a recess Labeling disc is covered. This ensures that there is good visibility the signal lamp is available and still has a sufficient operating surface the key surface. It is also provided that the key surface after is attached at a slight incline at the back.
Ein AusSührungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird anschließend näher beschrieben. Es zeigen: Figur 1 Ein Leuchttastenfed für Fernmeldeanlagen in perspektivischer Darstellung.An AusSührungsbeispiel the invention is shown in the drawing and is described in more detail below. The figures show: FIG. 1 an illuminated key spring for telecommunications systems in a perspective view.
Figur 2 Den Tastenknopf einer Leuchttaste, ebenfalls in perspektivischer Darstellung.Figure 2 The key button of an illuminated key, also in perspective Depiction.
Die Figur 1 zeigt ein Tastenfeld 1 mit Leuchttasten, deren Tastenknöpfe mit 2 bezeichnet sind. An den Tastenknöpfen 2 sind als Signalleuchten Leuchtdioden 3 schräg nach vorn herausstehend angebracht.FIG. 1 shows a keypad 1 with illuminated keys and their key buttons are denoted by 2. Light-emitting diodes are used as signal lamps on the key buttons 2 3 attached to the front at an angle.
Die Figur 2 zeigt im einzelnen die ausbildung eines derartigen Tastenknopfes. Wie aus der Zeichnung zu ersehen ist, ist an der vorderen Kante des Tastenknopfes 2 eine fluide 4 ausgeformt, und in dieser ist eine Leuchtdiode 3 so angebracht, daß sie schräg nach vorn heraussteht. Die den Tastenknopf nach oben abdeckende Bezeichnungsscheibe 5 ist ebenfalls bei 6 mit einer Ausnehmung versehen und nach unten, in Richtung der Leuchtdioden bei 7, ausgehöhlt. Es ist weiter vorgesehen, daß die Tastenoberfläche mit der Bezeichrnngsscheibe 5 jeweils nach hinten leicht geneigt ist.FIG. 2 shows in detail the design of such a key button. As can be seen from the drawing, is on the front edge of the key top 2 a fluid 4 is formed, and in this a light-emitting diode 3 is attached in such a way that that it protrudes at an angle to the front. The label disc covering the key top at the top 5 is also provided with a recess at 6 and downwards, in the direction of the light emitting diodes at 7, hollowed out. It is further provided that the key surface with the designation disk 5 is slightly inclined towards the rear.
Durch diese Ausbildungen wird, wie bereits ausgeführt, bei einer Leuchttaste unter Verwendung praktisch wartungsfreier Leuchtdioden eine gute Signalwirkung erreicht bei einem optimalen Betrachtungswinkelbereich und unter Vermeidung von Spiegelungseffekten.As already stated, with a lighted key A good signaling effect is achieved using practically maintenance-free light-emitting diodes with an optimal viewing angle range and avoiding reflective effects.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742438108 DE2438108C2 (en) | 1974-08-08 | 1974-08-08 | Illuminated button in particular for telecommunication systems |
AT613175A AT338338B (en) | 1974-08-08 | 1975-08-07 | LIGHT BUTTON, ESPECIALLY FOR REMOTE INDICATORS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742438108 DE2438108C2 (en) | 1974-08-08 | 1974-08-08 | Illuminated button in particular for telecommunication systems |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2438108A1 true DE2438108A1 (en) | 1976-02-19 |
DE2438108C2 DE2438108C2 (en) | 1982-09-09 |
Family
ID=5922698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19742438108 Expired DE2438108C2 (en) | 1974-08-08 | 1974-08-08 | Illuminated button in particular for telecommunication systems |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT338338B (en) |
DE (1) | DE2438108C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0024620A1 (en) * | 1979-08-22 | 1981-03-11 | Siemens Aktiengesellschaft | Luminous-indication key for key boards in office and teleprinting machines |
DE3021278A1 (en) * | 1980-06-06 | 1981-12-17 | Olympia Werke Ag, 2940 Wilhelmshaven | Automatic tabulator setting for typewriters - uses single key operation to set tabulators in association with tabulator memory |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3825898C2 (en) * | 1988-07-29 | 1994-09-22 | Siemens Ag | Telephone device with function keys |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB903373A (en) * | 1960-05-18 | 1962-08-15 | Ericsson Telephones Ltd | Push-button electric switch |
DE7333908U (en) * | 1973-09-19 | 1973-12-13 | Saba A Schwer Soehne Gmbh | Touch button with indicator light |
-
1974
- 1974-08-08 DE DE19742438108 patent/DE2438108C2/en not_active Expired
-
1975
- 1975-08-07 AT AT613175A patent/AT338338B/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB903373A (en) * | 1960-05-18 | 1962-08-15 | Ericsson Telephones Ltd | Push-button electric switch |
DE7333908U (en) * | 1973-09-19 | 1973-12-13 | Saba A Schwer Soehne Gmbh | Touch button with indicator light |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0024620A1 (en) * | 1979-08-22 | 1981-03-11 | Siemens Aktiengesellschaft | Luminous-indication key for key boards in office and teleprinting machines |
DE2933983A1 (en) * | 1979-08-22 | 1981-03-26 | Siemens AG, 1000 Berlin und 8000 München | KEY WITH LIGHT INDICATOR FOR KEYBOARDS IN OFFICE AND TELEVISION TYPEWRITERS |
DE3021278A1 (en) * | 1980-06-06 | 1981-12-17 | Olympia Werke Ag, 2940 Wilhelmshaven | Automatic tabulator setting for typewriters - uses single key operation to set tabulators in association with tabulator memory |
Also Published As
Publication number | Publication date |
---|---|
AT338338B (en) | 1977-08-25 |
DE2438108C2 (en) | 1982-09-09 |
ATA613175A (en) | 1976-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
D2 | Grant after examination | ||
8339 | Ceased/non-payment of the annual fee |