DE1221707B - Arrangement for illuminating a push button - Google Patents

Arrangement for illuminating a push button

Info

Publication number
DE1221707B
DE1221707B DES76734A DES0076734A DE1221707B DE 1221707 B DE1221707 B DE 1221707B DE S76734 A DES76734 A DE S76734A DE S0076734 A DES0076734 A DE S0076734A DE 1221707 B DE1221707 B DE 1221707B
Authority
DE
Germany
Prior art keywords
push button
control surface
pushbutton
illuminating
lighting
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.)
Pending
Application number
DES76734A
Other languages
German (de)
Inventor
Percy Hugo Anders Andersson
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.)
AGA AB
Original Assignee
AGA AB
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 AGA AB filed Critical AGA AB
Publication of DE1221707B publication Critical patent/DE1221707B/en
Pending legal-status Critical Current

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
    • 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
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
    • 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
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/06—Reflector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/054—Optical elements
    • H01H2219/062—Light conductor
    • H01H2219/0622—Light conductor only an illuminated ring around keys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S116/00—Signals and indicators
    • Y10S116/28—Push button structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S200/00—Electricity: circuit makers and breakers
    • Y10S200/47—Light guides for switch indicators, e.g. prisms, reflectors or cables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. Cl.:Int. Cl .:

HOIhHOIh

Deutsche Kl.: 21c-40/07German class: 21c-40/07

Nummer: 1221707Number: 1221707

Aktenzeichen: S 76734 VIII d/21 cFile number: S 76734 VIII d / 21 c

Anmeldetag: 16. November 1961 Filing date: November 16, 1961

Auslegetag: 28. Juli 1966Opening day: July 28, 1966

Die Erfindung bezieht sich auf eine Anordnung zur Beleuchtung einer aus lichtdurchlässigem Material hergestellten Drucktaste mittels einer seitlich neben der Drucktaste angeordneten Lampe, bei der das Licht der Lampe seitlich in die Drucktaste eindringt und danach gegen die Bedienungsfläche der Drucktaste reflektiert wird.The invention relates to an arrangement for illuminating a light-permeable material produced pushbutton by means of a lamp arranged laterally next to the pushbutton, in which the Light from the lamp penetrates laterally into the pushbutton and then against the operating surface of the pushbutton is reflected.

Anordnungen zur Beleuchtung von Drucktasten sind bekannt. Bei solchen Beleuchtungsvorrichtungen ist aber die Bedienungsfläche der Drucktaste entweder beleuchtet und dann hell oder unbeleuchtet und dann dunkel. Wenn in einer Vorrichtung mehrere Drucktasten vorgesehen sind, ist es aber zweckmäßig, daß wenigstens ein Teil jeder Bedienungsfläche stetig in irgendeiner Weise beleuchtet ist, so daß sämtliche Drucktasten im Dunkeln gut erkennbar sind. Dazu muß aber eine Vorrichtung vorgesehen sein, mit der die eben betätigte Drucktaste besonders angegeben ist.Arrangements for illuminating pushbuttons are known. With such lighting devices but the control surface of the push button is either illuminated and then bright or unlit and then dark. If several pushbuttons are provided in a device, it is advisable to that at least a part of each control surface is continuously illuminated in some way, so that all pushbuttons are clearly visible in the dark. For this, however, a device must be provided with which the pushbutton that has just been pressed is specifically indicated.

Dies wird gemäß der Erfindung dadurch ermöglicht, daß das Licht zur Beleuchtung von voneinander abgetrennten Teilen der Bedienungsfläche einer Drucktaste in die Drucktaste an gegenseitig in axialer Richtung verschobenen Teilen der Drucktaste eindringt und daß die Drucktaste in einem festen Abschirmorgan so verschiebbar ist, daß die Beleuchtung eines der genannten Teile der Bedienungsfläche bei der Verschiebung der Drucktaste im Abschirmorgan verändert wird, während die Beleuchtung eines anderen Teiles der Bedienungsfläche unverändert bleibt. Es ist vorteilhaft, wenn der Teil der Bedienungsfläche mit veränderlicher Beleuchtung den übrigen Teil der Bedienungsfläche ringförmig umgibt.This is made possible according to the invention in that the light is used to illuminate each other separated parts of the control surface of a push button in the push button on each other in axial Direction shifted parts of the pushbutton penetrates and that the pushbutton in a solid shielding element can be moved so that the lighting of one of the parts mentioned of the control surface at the shift of the pushbutton in the shielding element is changed, while the lighting of a other part of the control surface remains unchanged. It is advantageous if the part of the control surface with variable lighting surrounds the remaining part of the control surface in a ring shape.

In der Zeichnung ist eine Ausführungsform der Erfindung beispielsweise dargestellt. Es zeigtIn the drawing, an embodiment of the invention is shown as an example. It shows

F i g. 1 schematisch einen Querschnitt durch ein Armaturenbrett mit zwei Tasten,F i g. 1 schematically shows a cross section through a dashboard with two buttons,

Fig. 2 die Ansicht der Betätigungsfläche einer Taste mit Signalbild.2 shows the view of the actuation surface of a button with a signal image.

Das Armaturenbrett 1 dient auch als Abschirmorgan und hat zwei Drucktasten 2 und 3, die axial verschiebbar sind. Eine Feder 4 erzeugt eine Vorspannung für die Taste 3. Zur Begrenzung der Verschiebung dienen Anschläge, z. B. ein Flansch 5. Die Beleuchtung der Tasten erfolgt durch eine Lampe 6, deren Licht durch eine Scheibe 7 aus lichtdurchlässigem Werkstoff zu den Tasten gelangt. Der Werkstoff kann, wie auch der der Tasten 2 und 3, Kunstglas sein.The dashboard 1 also serves as a shielding element and has two pushbuttons 2 and 3, which are axially are movable. A spring 4 creates a bias for the button 3. To limit the displacement serve attacks, z. B. a flange 5. The keys are illuminated by a lamp 6, whose light reaches the keys through a disc 7 made of translucent material. The material can, like that of buttons 2 and 3, be synthetic glass.

Auf der Bedienungsfläche ist eine teilweise undurchsichtige Schicht 8 vorgesehen, die, wie in Fig. 2 angedeutet, mittels Durchbrüchen ein Zeichen auf der Anordnung zur Beleuchtung einer DrucktasteA partially opaque layer 8 is provided on the operating surface which, as in FIG. 2 indicated by means of breakthroughs a character on the arrangement for illuminating a push button

Anmelder:Applicant:

AGA Aktiebolag, Lidingö (Schweden)AGA Aktiebolag, Lidingö (Sweden)

Vertreter:Representative:

Dipl.-Ing. W. Mouths, Patentanwalt,Dipl.-Ing. W. Mouths, patent attorney,

Frankfurt/M., Krögerstr. 5Frankfurt / M., Krögerstr. 5

Als Erfinder benannt:Named as inventor:

Percy Hugo Anders Andersson,Percy Hugo Anders Andersson,

Enebyberg (Schweden)Enebyberg (Sweden)

Beanspruchte Priorität:Claimed priority:

Schweden vom 10. Dezember 1960 (11 984)Sweden 10 December 1960 (11,984)

Bedienungsfläche erkennen läßt. Der mittlere Teil dieser Fläche wird durch Licht beleuchtet, das vonCan recognize control surface. The middle part of this surface is illuminated by light emanating from

as der Lampe 6 gegen eine spiegelnde Fläche 9 in einer Einkerbung 10 der Taste geworfen wird. Die axiale Lage ist so gewählt, daß die Fläche 9 ständig beleuchtet ist, gleichgültig, ob die Taste sich in der Ruheoder in der Arbeitslage befindet. Das in der Schicht 8 vorhandene Zeichen ist daher immer beleuchtet.as the lamp 6 against a reflective surface 9 in one Notch 10 of the button is thrown. The axial position is chosen so that the surface 9 is constantly illuminated regardless of whether the key is in the rest or in the working position. That in layer 8 existing signs are therefore always illuminated.

Außerhalb der Schicht 8 befindet sich ein unbedeckter Randteil 11 der Bedienungsfläche, der nur dann beleuchtet wird, wenn die Taste in der Betätigungslage steht, und zwar durch Licht, das an einer Spiegelfläche 12 reflektiert wird. Diese Fläche sitzt so mit Bezug auf das als Abschirmorgan dienende Armaturenbrett 1, daß sie in der unbetätigten Stellung der Drucktaste kein Licht erhält, wie in F i g. 1 für die Taste 3 dargestellt. Die Grenzfläche 13 zwischen dem Mittelteil und dem mantelförmigen Teil der Taste soll lichtundurchlässig sein. Es können auch mehrere Lampen zur Beleuchtung der Tasten von verschiedenen Seiten her angeordnet sein. In den meisten Fällen dürfte sich jedoch die durch das Kunstglas erzeugte Lichtstreuung als genügend erweisen. Outside the layer 8 there is an uncovered edge part 11 of the operating surface, which is only is then illuminated when the button is in the operating position, by light that is on a Mirror surface 12 is reflected. This surface is seated in relation to the dashboard serving as a shielding element 1 that it receives no light in the unactuated position of the pushbutton, as in FIG. 1 for button 3 is shown. The interface 13 between the central part and the jacket-shaped part of the The button should be opaque. Several lamps can also be used to illuminate the buttons be arranged on different sides. In most cases, however, the Artificial glass produced light scattering prove to be sufficient.

Mit der Ausbildung nach der Erfindung wird erreicht, daß das Zeichen auf der Bedienungsfläche der Tasten ständig leuchtet, während das Zeichen einer im Augenblick betätigten Taste von einem leuchtenden Ring umgeben ist. Diese Ausbildung eignet sich besonders für die Betätigung von elektronischen Aus-With the training according to the invention it is achieved that the character on the control surface of the Keys are constantly lit, while the character of a key that is currently being pressed is illuminated by a Ring is surrounded. This training is particularly suitable for the operation of electronic

; "- - ':"-: 609 607/290 ; "- - ' : " - : 609 607/290

rüstungen in Flugzeugen. Die Lichtstärke kann so gewählt werden, daß keine Blendung des Flugzeugführers entsteht, während er ohne weiteres durch den leuchtenden Ring eine zuverlässige Anzeige darüber erhält, welche Tasten betätigt sind.armor in aircraft. The light intensity can be chosen so that there is no glare for the pilot arises, while the luminous ring provides a reliable indication of it without further ado receives which keys have been pressed.

Claims (2)

Patentansprüche:Patent claims: 1. Anordnung zur Beleuchtung einer aus lichtdurchlässigem Material hergestellten Drucktaste mittels einer neben der Drucktaste angeordneten Lampe, bei der das Licht der Lampe seitlich in die Drucktaste eindringt und danach gegen die Bedienungsfläche der Drucktaste reflektiert ist, dadurch gekennzeichnet, daß das Licht zur Beleuchtung von voneinander abgetrennten Teilen der Bedienungsfläche (8,11) in die Drucktaste (2) an gegenseitig in axialer Richtung verschobenen Teilen der Drucktaste eindringt und die Drucktaste in einem festen Abschirmorgan (1) verschiebbar angeordnet ist und die Beleuchtung eines der genannten Teile (11) der Bedienungsfläche bei der Verschiebung der Drucktaste (2) im Abschirmorgan (1) verändert wird, während die Beleuchtung eines anderen Teiles (8) der Bedienungsfläche unverändert bleibt.1. Arrangement for illuminating a push button made of translucent material by means of a lamp arranged next to the push button, in which the light of the lamp is laterally in the push button penetrates and is then reflected against the operating surface of the push button, characterized in that the light for illuminating separated from each other Share the control surface (8,11) in the push button (2) on mutually displaced in the axial direction Parts of the pushbutton penetrates and the pushbutton in a solid shielding element (1) is arranged displaceably and the lighting of one of the said parts (11) of the control surface when the pushbutton (2) is moved in Shielding element (1) is changed while the lighting of another part (8) of the control surface remains unchanged. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß der Teil (11) der Bedienungsfläche mit veränderlicher Beleuchtung den übrigen Teil (8) der Bedienungsfläche ringförmig umgibt.2. Arrangement according to claim 1, characterized in that the part (11) of the control surface with variable lighting the rest Part (8) of the control surface surrounds a ring. In Betracht gezogene Druckschriften:
Deutsche Patentschrift Nr. 719 951;
deutsche Gebrauchsmuster.Nr. 1785 265,
266.Considered publications:
German Patent No. 719 951;
German utility model No. 1785 265,
266. Hierzu 1 Blatt Zeichnungen 1 sheet of drawings 609 607/290 7.66 © Bundesdruckerei Berlin609 607/290 7.66 © Bundesdruckerei Berlin
DES76734A 1960-12-10 1961-11-16 Arrangement for illuminating a push button Pending DE1221707B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1198460 1960-12-10

Publications (1)

Publication Number Publication Date
DE1221707B true DE1221707B (en) 1966-07-28

Family

ID=20294936

Family Applications (1)

Application Number Title Priority Date Filing Date
DES76734A Pending DE1221707B (en) 1960-12-10 1961-11-16 Arrangement for illuminating a push button

Country Status (3)

Country Link
US (1) US3144643A (en)
DE (1) DE1221707B (en)
GB (1) GB1002157A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540945A1 (en) * 1975-09-13 1977-03-17 Schoeller & Co Elektrotech Push-button set for TV and radio receivers - illuminates key depressed and releases others
DE2741618A1 (en) * 1977-05-20 1978-11-30 Motorola Inc LIGHTING DEVICE FOR LIGHTING A KEYBOARD
DE2936192C2 (en) * 1979-09-07 1981-10-22 Daimler-Benz Ag, 7000 Stuttgart Illuminable pushbuttons, in particular for motor vehicles
DE3346485A1 (en) * 1983-12-22 1985-07-04 Siemens AG, 1000 Berlin und 8000 München KEY COVER FOR A KEYBOARD ARRANGED IN A HOUSING
EP0171075A2 (en) * 1984-08-10 1986-02-12 Alcatel N.V. Key switch with a step-by-step switching device
DE3511496A1 (en) * 1985-03-29 1986-10-09 Telefunken electronic GmbH, 7100 Heilbronn Key-switching device having a transparent covering film
US6246169B1 (en) 1997-11-17 2001-06-12 Molex Incorporated Electroluminescent lamp and having a flexible dome-shaped substrate
DE102018221841A1 (en) * 2018-12-14 2020-06-18 Volkswagen Aktiengesellschaft Illuminated display device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665631B1 (en) * 1966-05-09 1972-03-16 Rau Swf Autozubehoer LIGHTING DEVICE FOR SWITCHES OF VEHICLES, IN PARTICULAR OF MOTOR VEHICLES
DE1765678B1 (en) * 1968-06-28 1972-06-08 Siemens Ag ILLUMINATED BUTTON
US3717402A (en) * 1968-12-16 1973-02-20 Canadian Patents Dev Light collector for gamma ray cameras
US3601567A (en) * 1969-09-10 1971-08-24 Globe Union Inc Illuminated button switch construction
US3619591A (en) * 1970-02-19 1971-11-09 Gen Dynamics Corp Illuminated pushbuttons using piped light
US3632938A (en) * 1970-03-25 1972-01-04 Motorola Inc Pushbutton switch assembly
US3676689A (en) * 1970-12-30 1972-07-11 Ibm Optical code generating apparatus
BR7203240D0 (en) * 1972-05-06 1974-07-11 Lucas Electrical Co Ltd ELECTRIC SWITCHES
JPS5710024Y2 (en) * 1973-08-25 1982-02-26
GB1524373A (en) * 1975-02-11 1978-09-13 Lucas Electrical Co Ltd Electrical switch
JPS5237482U (en) * 1975-09-10 1977-03-16
JPS5387880U (en) * 1976-12-21 1978-07-19
DE7814996U1 (en) * 1978-05-18 1979-10-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen Push button switch
JPS5463280A (en) * 1978-09-27 1979-05-22 Hitachi Ltd Thin type pushhbutton
JPS5686723U (en) * 1979-12-07 1981-07-11
JPS56117434U (en) * 1980-02-08 1981-09-08
US4302650A (en) * 1980-05-30 1981-11-24 Westinghouse Electric Corp. Circuit interrupter with optical indicator
JPS59139510A (en) * 1983-01-28 1984-08-10 寺崎電気産業株式会社 Display unit for electric switch
JPS6089228A (en) * 1983-10-19 1985-05-20 Matsushita Electric Ind Co Ltd Keyboard
JPS60174028U (en) * 1984-04-19 1985-11-18 株式会社東海理化電機製作所 Illuminated switch-on display
JPS60252388A (en) * 1984-05-29 1985-12-13 株式会社東芝 Display
JPS6176633U (en) * 1984-10-26 1986-05-23
DE3601941A1 (en) * 1986-01-23 1987-07-30 Norbert Just Display device for an electromagnetic relay
US4710602A (en) * 1986-02-03 1987-12-01 General Motors Corporation Illuminated rocker switch assembly
CA1295630C (en) * 1986-04-30 1992-02-11 Yoshiya Takahashi Light emitting push button switch for an electronic apparatus
US4772769A (en) * 1987-02-06 1988-09-20 Burr-Brown Corporation Apparatus for selective backlighting of keys of a keyboard
US4792884A (en) * 1987-10-19 1988-12-20 Prince Corporation Illuminated vanity mirror visor
NL8801274A (en) * 1988-05-18 1989-12-18 Philips Nv TARGETED OPTICAL SIGNALING.
DE3821561A1 (en) * 1988-06-25 1989-12-28 Porsche Ag DEVICE FOR THE OPTICAL DISPLAY OF THE READY OF A VEHICLE ALARM SYSTEM
US5510782A (en) * 1992-08-03 1996-04-23 Itt Corporation Back lit keypad
FR2696020B1 (en) * 1992-09-21 1994-11-10 Team Selection and / or adjustment button, in particular for the front of the aeronautical unit.
US5521345A (en) * 1994-09-30 1996-05-28 Tokheim Corporation Backlit membrane keypad
DE102004012542A1 (en) * 2004-03-15 2005-11-03 BSH Bosch und Siemens Hausgeräte GmbH Assembly for mobile storage in a receiving space of a household appliance and household appliance with such
GB0422927D0 (en) * 2004-10-15 2004-11-17 Gamesman Ltd Push button assembly
CN2874591Y (en) * 2005-12-30 2007-02-28 鸿富锦精密工业（深圳）有限公司 Computer panel light conductive device
CN104713191A (en) * 2013-12-17 2015-06-17 法雷奥汽车内部控制（深圳）有限公司 Control mechanism

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Publication number Priority date Publication date Assignee Title
DE719951C (en) * 1939-10-08 1942-04-20 Telefunken Gmbh Radio with push button operation
DE1785265U (en) * 1956-01-13 1959-03-19 Siemens Ag Albis LIGHT BUTTON.
DE1785266U (en) * 1958-11-11 1959-03-19 Fritz Hellige & Co G M B H Fab PUSH BUTTON SWITCH.

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Publication number Priority date Publication date Assignee Title
US2585503A (en) * 1950-11-29 1952-02-12 Hotpoint Inc Selector switch signaling system for electric ranges and the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE719951C (en) * 1939-10-08 1942-04-20 Telefunken Gmbh Radio with push button operation
DE1785265U (en) * 1956-01-13 1959-03-19 Siemens Ag Albis LIGHT BUTTON.
DE1785266U (en) * 1958-11-11 1959-03-19 Fritz Hellige & Co G M B H Fab PUSH BUTTON SWITCH.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540945A1 (en) * 1975-09-13 1977-03-17 Schoeller & Co Elektrotech Push-button set for TV and radio receivers - illuminates key depressed and releases others
DE2741618A1 (en) * 1977-05-20 1978-11-30 Motorola Inc LIGHTING DEVICE FOR LIGHTING A KEYBOARD
DE2936192C2 (en) * 1979-09-07 1981-10-22 Daimler-Benz Ag, 7000 Stuttgart Illuminable pushbuttons, in particular for motor vehicles
DE3346485A1 (en) * 1983-12-22 1985-07-04 Siemens AG, 1000 Berlin und 8000 München KEY COVER FOR A KEYBOARD ARRANGED IN A HOUSING
EP0171075A2 (en) * 1984-08-10 1986-02-12 Alcatel N.V. Key switch with a step-by-step switching device
EP0171075A3 (en) * 1984-08-10 1987-01-07 Alcatel N.V. Key switch with a step-by-step switching device
DE3511496A1 (en) * 1985-03-29 1986-10-09 Telefunken electronic GmbH, 7100 Heilbronn Key-switching device having a transparent covering film
US6246169B1 (en) 1997-11-17 2001-06-12 Molex Incorporated Electroluminescent lamp and having a flexible dome-shaped substrate
DE102018221841A1 (en) * 2018-12-14 2020-06-18 Volkswagen Aktiengesellschaft Illuminated display device

Also Published As

Publication number Publication date
US3144643A (en) 1964-08-11
GB1002157A (en) 1965-08-25

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