DE202006017603U1 - Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element - Google Patents
Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element Download PDFInfo
- Publication number
- DE202006017603U1 DE202006017603U1 DE202006017603U DE202006017603U DE202006017603U1 DE 202006017603 U1 DE202006017603 U1 DE 202006017603U1 DE 202006017603 U DE202006017603 U DE 202006017603U DE 202006017603 U DE202006017603 U DE 202006017603U DE 202006017603 U1 DE202006017603 U1 DE 202006017603U1
- Authority
- DE
- Germany
- Prior art keywords
- sensor
- light
- keyboard
- cover
- light guide
- 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 - Lifetime
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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
- H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96015—Constructional details for touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96042—Touch switches with illumination
- H03K2217/96046—Key-pad combined with display, back-lit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960785—Capacitive touch switches with illumination
- H03K2217/96079—Capacitive touch switches with illumination using a single or more light guides
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Sensortastatur für elektrische Geräte, insbesondere zur Verwendung als Code-Tastatur für Tür-Zugangskontrollsysteme, mit einer berührungs- bzw. bewegungslos betätigbaren Näherungssensor-Schalteinrichtung mit einer Mehrzahl von über eine Fläche verteilten Sensorfeldern, die von einer flachen Tastaturabdeckung überdeckt sind, wobei die Tastaturabdeckung über ihre Fläche verteilte und jeweils die Sensorfelder kennzeichnende, lichtdurchlässige Leuchtsymbole aufweist, die von der Seite der Sensorfelder her über Leuchtmittel beleuchtbar sind.The The present invention relates to a sensor keyboard for electrical Equipment, in particular for use as a code keypad for door access control systems, with a contact or motionless actuated Proximity sensor switching device with a plurality of over an area distributed sensor panels covered by a flat keyboard cover are, with the keyboard cover distributed over its surface and each of the Having sensor fields characteristic, translucent luminous symbols, which can be illuminated from the side of the sensor fields via light sources are.
Bei bekannten Sensortastaturen der beschriebenen Art ist jedem Leuchtsymbol der Tastaturabdeckung eine Lichtquelle in Form einer LED zugeordnet, die folglich im Flächenbereich zwischen den Schaltfeldern der Sensor-Schalteinrichtung und der Tastaturabdeckung angeordnet sind. Daraus resultiert ein relativ großer Abstand der Vorderseite der Tastaturabdeckung bis zu den Sensorfeldern. Da die Näherungssensoren eine Annäherung eines Fingers einer Bedienungsperson über kapazitive Streufelder erfassen, ist der große Abstand sehr nachteilig; er führt zu einer schlechten Ansprechqualität (Genauigkeit) der Sensorik.at known sensor keyboards of the type described is each light symbol associated with the keyboard cover a light source in the form of an LED, consequently in the area between the panels of the sensor switching device and the Keyboard cover are arranged. This results in a relative greater Distance from the front of the keyboard cover to the sensor fields. Because the proximity sensors an approach detecting a finger of an operator via capacitive stray fields, is the big one Distance very disadvantageous; He leads to a bad response quality (accuracy) of the sensor.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, mit konstruktiv einfachen und kostengünstigen Mitteln eine Sensortastatur der genannten Art mit einer verbesserten Sensor-Ansprechqualität zu schaffen.Of the present invention is based on the object with constructive simple and inexpensive Means a sensor keyboard of the type mentioned with an improved Sensor response quality to accomplish.
Erfindungsgemäß wird dies durch die Merkmale des Anspruchs 1 erreicht. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche. Zudem wird Schutz auch für erfindungswesentliche Einzelteile (Ersatzteile) der Sensortastatur sowie auch für ein mit einer erfindungsgemäßen Sensortastatur ausgestattetes Gerät – insbesondere in einer Ausführung als Code-Eingabegerät für ein Tür-Zugangskontrollsystem – beansprucht.According to the invention this is achieved by the features of claim 1. Advantageous embodiments The invention is the subject of the dependent claims. moreover will also protect for essential to the invention items (spare parts) of the sensor keyboard as well as for a with a sensor keyboard according to the invention equipped device - in particular in one execution as a code input device for a Door access control system - claimed.
Erfindungsgemäß weisen demnach die Leuchtmittel (nur) mindestens eine in einem Seitenrandbereich außerhalb des Flächenbereichs der Leuchtsymbole und der Sensorfelder angeordnete Lichtquelle sowie ein flach zwischen den Sensorfeldern und der Tastaturabdeckung liegendes, die Bereiche der Leuchtsymbole überdeckendes Lichtleitelement derart auf, dass von der seitliche Lichtquelle ausgehendes Licht über die Fläche verteilt und in die Bereiche der Leuchtsymbole geleitet wird. Die Sensorfelder sind auf einer flachen Sensorplatine gebildet. Erfindungsgemäß liegt das flache Lichtleitelement parallel und im Wesentlichen spaltfrei sandwichartig zwischen der Sensorplatine und der Tastaturabdeckung. Aus dieser erfindungsgemäßen Ausgestaltung resultiert ein sehr geringer Abstand von der zur Betätigung allenfalls leicht zu berührenden Vorderseite der Tastaturabdeckung bis zu den Sensor-Schaltfeldern, was zu einer erheblichen Verbesserung der Ansprechqualität und Schaltgenauigkeit führt. Zudem können vorteilhafterweise mehrere Leuchtsymbole mit nur einer Lichtquelle, insbesondere LED, beleuchtet werden, was zu einem einfachen und kostengünstigen Aufbau führt. Bevorzugt sind allerdings mehrere, insbesondere vier Lichtquellen derart in Eckbereichen des im Wesentlichen rechteckig, bevorzugt im Wesentlichen quadratisch ausgebildeten Lichtleitelementes angeordnet, dass deren Licht parallel zur Fläche in jeweils eine Seiten- bzw. Eckenkante des Lichtleitelementes eintritt. Vorzugsweise verlaufen dabei die Seitenkanten, in die das Licht eintritt, jeweils fasenartig schräg in einem Winkel von etwa 45° bzw. 135° zu den benachbarten Seitenrändern des Lichtleitelementes.According to the invention Accordingly, the bulbs (only) at least one in a side edge area outside of the surface area the luminous symbols and the sensor fields arranged light source as well flat between the sensor fields and the keyboard cover, the areas of the luminous symbols overlapping Light guide on such that emanating from the side light source Light over the area distributed and directed into the areas of the light symbols. The Sensor fields are formed on a flat sensor board. According to the invention the flat light guide parallel and substantially gap-free sandwiched between the sensor board and the keyboard cover. From this embodiment of the invention results in a very small distance from the operation at best easy to touch front the keyboard cover up to the sensor panels, resulting in a significant Improvement of the response quality and switching accuracy leads. In addition, you can advantageously several light symbols with only one light source, In particular, LED, be illuminated, resulting in a simple and inexpensive Construction leads. However, several, in particular four light sources are preferred such in corner regions of the substantially rectangular, preferably arranged substantially square shaped light guide, that their light is parallel to the surface in each case a side or corner edge of the light guide element occurs. Preferably, the side edges, in which the light enters, each beveled at an angle of about 45 ° or 135 ° to the neighboring margins of the light-guiding element.
Das Lichtleitelement kann ebenfalls sehr kostengünstig aus einem plattenförmigen transparenten Material mit beidseitig glatten (polierten) Oberflächen bestehen. Es kann auf besonders einfache Weise als Scheibe bzw. Platte aus einem transparenten Kunststoff hergestellt werden. Eine der Oberflächen weist in den die Leuchtsymbole der Tastaturabdeckung überdeckenden Bereichen Störstellen zur Lichtauskoppelung auf. Bei diesen Störstellen kann es sich jeweils um mehrere, z. B. zwei bis sieben konzentrische Kreisrillen handeln, an deren Rillenflächen sich das parallel in die Flächen des Lichtleitleitelementes gestrahlte Licht bricht und dadurch quer aus dem Lichtleitelement in Richtung des zu hinterleuchteten Leuchtsymbols austritt.The Light guide can also be very inexpensive from a plate-shaped transparent Material with smooth surfaces (polished) on both sides. It can be made in a particularly simple way as a disk or plate made of a transparent plastic. One of the surfaces faces in areas covering the luminous symbols of the keyboard cover areas of impurity for light extraction on. These defects can occur respectively around several, z. B. two to seven concentric circular grooves, at the groove surfaces the parallel to the surfaces the Lichtleitleitelementes radiated light breaks and thereby across from the light guide in the direction of the backlit flare symbol exit.
In einer vorteilhaften Ausgestaltung besteht die Tastaturabdeckung zumindest im Bereich einer vorderen, ebenen Deckwandung aus einem transparenten oder transluzenten Material und weist insbesondere auf ihrer von der Sensor-Schalteinrichtung und dem Lichtleitelement abgewandten Außenseite eine im Wesentlichen lichtundurchlässige Beschichtung auf. Die Leuchtsymbole können auf einfache und wirtschaftliche Weise durch partielles Entfernen der Beschichtung insbesondere mittels Laserstrahl gebildet werden. Die lichtundurchlässige Beschichtung besteht zumindest aus einer insbesondere schwarzen Farbschicht und optional einer beliebigen äußeren Dekorschicht (Dekorlack). Bei der schwarzen Farbschicht kann es sich mit Vorteil um ein Beschichtungsmaterial auf der Basis von Polyulethanharz handeln (sogenannte PUR-Grundierung schwarz). Die schwarze Farbschicht ist vor allem für eine Laserstrahl-Bearbeitung von besonderem Vorteil, weil sie den Laserstrahl optimal "annimmt".In an advantageous embodiment, the keyboard cover at least in the area of a front, flat top wall of a transparent or translucent material and has particular on their from the sensor switching device and the outer side facing away from the light guide substantially opaque Coating on. The light symbols can be simple and economical Way by partial removal of the coating in particular by means Laser beam are formed. The opaque coating is made at least from a particular black color layer and optional any outer decorative layer (Decorative finish). The black color layer can be an advantage to act a coating material based on Polyulethanharz (so-called PUR primer black). The black color layer is especially for one Laser beam machining is of particular advantage because it uses the laser beam optimally "takes".
Die Sensorfelder sind durch eine bestimmte Bauteil-Bestückung in einer gleichmäßigen Flächenverteilung auf der Sensorplatine gebildet. Diese Sensorplatine weist auf ihrer dem Lichtleitelement zugewandten Vorderseite eine helle, insbesondere weiße, und/oder lichtreflektierende Oberfläche auf. Mit Vorteil kann es sich um einen weißen Lötstopplack handeln. Die Sensorplatine trägt in den Eckbereichen ihrer Vorderseite vorzugsweise jeweils eine Lichtquelle, insbesondere LED. Auf ihrer gegenüberliegenden Rückseite sind die notwendigen Bauteile der Nährungssenor-Schalteinrichtung angeordnet.The sensor fields are by a certain component assembly in a uniform surfaces distribution formed on the sensor board. This sensor board has a bright, in particular white, and / or light-reflecting surface on its front side facing the light-guiding element. Advantageously, it can be a white solder mask. The sensor board preferably carries in each case a light source, in particular LED, in the corner regions of its front side. On its opposite rear side, the necessary components of Nährungssenor switching device are arranged.
Anhand der Zeichnung und darin veranschaulichter bevorzugter Ausführungsbeispiele soll die Erfindung im Folgenden genauer erläutert werden. Dabei zeigen:Based the drawing and illustrated therein preferred embodiments the invention will be explained in more detail below. Showing:
In den verschiedenen Figuren der Zeichnung sind gleiche Teile stets mit den gleichen Bezugszeichen versehen.In the different figures of the drawing are the same parts always provided with the same reference numerals.
In
Wie
sich dazu insbesondere aus
Diese
Leuchtmittel bestehen nun erfindungsgemäß aus mindestens einer in einem
Seitenrandbereich außerhalb
des Flächenbereichs
der Leuchtsymbole
Wie
sich weiterhin aus
In
den bevorzugten Ausführungsbeispielen sind
vier Lichtquellen
Das
erfindungsgemäße Lichtleitelement
Erfindungsgemäß kann über die
Größe, insbesondere über den
Gesamtdurchmesser DG der Störstellen
In
weiterer bevorzugter Ausgestaltung besteht die Tastaturabdeckung
Mit
weiterem Vorteil weist die die Sensorfelder
Weiterhin
trägt die
Sensorplatine
Die
Sensortastatur
Die Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsbeispiele beschränkt, sondern umfasst auch alle im Sinne der Erfindung gleichwirkenden Ausführungen. Ferner ist die Erfindung bislang auch noch nicht auf die im Anspruch 1 definierte Merkmalskombination beschränkt, sondern kann auch durch jede beliebige andere Kombination von bestimmten Merkmalen aller insgesamt offenbarten Einzelmerkmalen definiert sein. Dies bedeutet, dass grundsätzlich praktisch jedes Einzelmerkmal des Anspruchs 1 weggelassen bzw. durch mindestens ein an anderer Stelle der Anmeldung offenbartes Einzelmerkmal ersetzt werden kann. Insofern ist der Anspruch 1 lediglich als ein erster Formulierungsversuch für eine Erfindung zu verstehen.The invention is not on the illustrated and described embodiments be but also includes all the same in the context of the invention embodiments. Furthermore, the invention has hitherto not been limited to the feature combination defined in claim 1, but may also be defined by any other combination of specific features of all individually disclosed individual features. This means that in principle virtually every individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. In this respect, the claim 1 is to be understood only as a first formulation attempt for an invention.
Claims (22)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202006017603U DE202006017603U1 (en) | 2006-11-16 | 2006-11-16 | Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202006017603U DE202006017603U1 (en) | 2006-11-16 | 2006-11-16 | Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE202006017603U1 true DE202006017603U1 (en) | 2007-03-15 |
Family
ID=37896830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE202006017603U Expired - Lifetime DE202006017603U1 (en) | 2006-11-16 | 2006-11-16 | Sensor-controlled operating button in particular for safety door, comprises lighting positioned at distance from illuminated symbols and light guiding element |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE202006017603U1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007040113A1 (en) * | 2007-08-24 | 2009-02-26 | Siemens Ag | Light for illuminating surfaces has an LED source with a shaped optic coupling into a light guide for an even light distribution |
| DE102010051306A1 (en) * | 2010-11-12 | 2012-05-16 | Leopold Kostal Gmbh & Co. Kg | Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor |
| DE102011016427A1 (en) * | 2011-04-08 | 2012-10-11 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | A display switch unit for a vehicle and a method of manufacturing the display switch unit |
| US8890839B2 (en) | 2010-04-06 | 2014-11-18 | Continental Automotive Gmbh | Capacitive proximity switch |
| EP2911300A1 (en) | 2014-02-21 | 2015-08-26 | Berker GmbH & Co. KG | Touch sensitive electrical control device with a haptic feedback |
| EP3573237A1 (en) * | 2018-05-22 | 2019-11-27 | Lesniak, Wojciech | Set of plates of electronic multichannel touch wall switch |
| US20220164036A1 (en) * | 2016-09-15 | 2022-05-26 | Apple Inc. | Keyboard with Touch Sensor and Illumination |
| IT202300016353A1 (en) * | 2023-08-01 | 2025-02-01 | Blumotix S R L | NUMERIC KEYPAD TO ALLOW OR DISABLING A USER'S ACCESS TO AN OPERATIONAL SPACE |
-
2006
- 2006-11-16 DE DE202006017603U patent/DE202006017603U1/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007040113A1 (en) * | 2007-08-24 | 2009-02-26 | Siemens Ag | Light for illuminating surfaces has an LED source with a shaped optic coupling into a light guide for an even light distribution |
| US8890839B2 (en) | 2010-04-06 | 2014-11-18 | Continental Automotive Gmbh | Capacitive proximity switch |
| DE102010051306A1 (en) * | 2010-11-12 | 2012-05-16 | Leopold Kostal Gmbh & Co. Kg | Illumination device for control element of e.g. switch in motor car, has scattering centers in which light is scattered transverse to radiation direction, and carrier whose surface exhibits reflection characteristics below light conductor |
| DE102011016427A1 (en) * | 2011-04-08 | 2012-10-11 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | A display switch unit for a vehicle and a method of manufacturing the display switch unit |
| EP2911300A1 (en) | 2014-02-21 | 2015-08-26 | Berker GmbH & Co. KG | Touch sensitive electrical control device with a haptic feedback |
| US20220164036A1 (en) * | 2016-09-15 | 2022-05-26 | Apple Inc. | Keyboard with Touch Sensor and Illumination |
| US11972062B2 (en) * | 2016-09-15 | 2024-04-30 | Apple Inc. | Keyboard with touch sensor and illumination |
| EP3573237A1 (en) * | 2018-05-22 | 2019-11-27 | Lesniak, Wojciech | Set of plates of electronic multichannel touch wall switch |
| IT202300016353A1 (en) * | 2023-08-01 | 2025-02-01 | Blumotix S R L | NUMERIC KEYPAD TO ALLOW OR DISABLING A USER'S ACCESS TO AN OPERATIONAL SPACE |
| WO2025027518A1 (en) * | 2023-08-01 | 2025-02-06 | Blumotix S.R.L. | A numeric keypad for allowing or denying a user access to a workspace |
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| R152 | Term of protection extended to 10 years | ||
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