DE2710588A1 - Heated exterior driving mirror - has resistive heating backing layer keeping surface clear - Google Patents
Heated exterior driving mirror - has resistive heating backing layer keeping surface clearInfo
- Publication number
- DE2710588A1 DE2710588A1 DE19772710588 DE2710588A DE2710588A1 DE 2710588 A1 DE2710588 A1 DE 2710588A1 DE 19772710588 DE19772710588 DE 19772710588 DE 2710588 A DE2710588 A DE 2710588A DE 2710588 A1 DE2710588 A1 DE 2710588A1
- Authority
- DE
- Germany
- Prior art keywords
- mirror
- heatable
- mirror according
- resistance layer
- backing layer
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/181—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
- G02B7/1815—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation with cooling or heating systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/0602—Rear-view mirror arrangements mounted on vehicle exterior comprising means for cleaning or deicing
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
Description
Die Erfindung betrifft einen heizbaren Spiegel, ins-The invention relates to a heated mirror, in particular
besondere Außenspiegel für Kraftfahrzeuge, bestehend aus einem in einem Gehäuse angeordneten rückseitig versilberten Spiegelglas.special exterior mirrors for motor vehicles, consisting of an in a housing arranged on the rear silver-plated mirror glass.
Es ist bekannt, die Heckscheiben von Kraftfahrzeugen durch parallel in die Scheibe eingeschmolzene Drähte elektrisch zu heizen. Je nach der Außentemperatur bleiben aber zwischen den Heizdrähten mehr oder weniger breite beschlagene oder vereiste Streifen bestehen.It is known that the rear windows of motor vehicles by parallel to electrically heat wires melted into the pane. Depending on the outside temperature but remain between the heating wires more or less wide or shod icy strips exist.
Bei einem Außenspiegel wären aber derartige beschlagene oder vereiste Streifen der Verkehrssicherheit sehr abträglich, zumal auch bei nicht beschlagenem Spiegel die eingeschmolzenen Heizdrähte störend wirken würden.In the case of an outside mirror, however, this would be fogged or icy Stripes very detrimental to traffic safety, especially when it is not fogged up Mirror the melted heating wires would have a disruptive effect.
Der Erfindung liegt die Aufgabe zugrunde, einen heizbaren Außenspiegel zu erstellen, dessen gesamte Spiegelfläche beschlagfrei bleibt.The invention is based on the object of a heated exterior mirror to create the entire mirror surface of which remains fog-free.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Rückseite des Spiegelglases ganz oder teilweise mit einer Widerstandsschicht bedeckt ist, die sich zwischen zwei Stromzuführungselektroden erstreckt, die sich an den Rändern des Spiegelglases einander gegenüberliegen.This object is achieved according to the invention in that the back the mirror glass is completely or partially covered with a resistive layer, which extends between two power supply electrodes, which extend at the edges of the mirror glass are opposite each other.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß der vorgeschlagene, bei jeder Außentemperatur beschlagfreie Außenspiegel die Verkehrssicherheit weiter erhöht.The advantages achieved with the invention are in particular: that the proposed, fog-free exterior mirrors at any outside temperature Traffic safety further increased.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen Fig. 1 die Rückseite eines Spiegelglases nach der Erfindung und Fig. 2 einen Querschnitt des in einem Gehäuse angeordneten Spiegelglases.An embodiment of the invention is shown in the drawing and is explained in more detail below. 1 shows the rear side of a mirror glass according to the invention and FIG. 2 shows a cross section of the arranged in a housing Mirror glass.
In einem einseitig offenen Gehäuse 1 ist än ebenes oder gebogenes, rückseitig versilbertes Spiegelglas 2 angeordnet, das durch eine Schraubenfeder 3 und einen Dichtungsring 4 gahaltert wird (Fig. 2). Die Rückseite 5 des Spiegelglases 2 ist erfindungsgemäß ganz oder teilweise mit einer Widerstandsschicht 6 bedeckt, die sich zwischen zwei Stromzuführungselektroden 7 erstreckt, die sich an den Rändern des Spiegelglases 2 einander gegenüberliegen (Fig. 1).In a housing 1 open on one side there is a flat or curved, Rear silver-plated mirror glass 2 arranged, which is supported by a helical spring 3 and a sealing ring 4 is held (Fig. 2). The back 5 of the mirror glass 2 is completely or partially covered according to the invention with a resistance layer 6, which extends between two power supply electrodes 7, which extend at the edges of the mirror glass 2 are opposite one another (Fig. 1).
Die Widerstandsschicht 6 besteht beispielsweise aus einer Kohle - Kunstharz - Paste, die vorzugsweise im Siebdruckverfahren auf der Rückseite 5 des Spiegelglases 2 aufgebracht ist. Weitere Aufbringungsmethoden sind das Aufspritzen oder Aufstreichen der Widerstandsschicht 6. Die beiden Stromzuführnngselektroden 7 werden ebenfalls im Siebdruckverfahren, vorzugsweise im gleichen Arbeitsgang mit dem Aufbringen der Widerstandsschicht 6 aufgedruckt, aufgespritzt oder aufgestrichen, und bestehen beispielsweise aus einer lötbaren Ag-Paste oder Cu-Paste oder aus einer sonstigen geeigneten Paste.The resistance layer 6 consists for example of a carbon - Synthetic resin paste, which is preferably screen-printed on the back 5 of the Mirror glass 2 is applied. Further application methods are spraying or spreading the resistance layer 6. The two power supply electrodes 7 are also screen-printed, preferably in the same operation the application of the resistance layer 6 printed, sprayed or painted on, and consist, for example, of a solderable Ag paste or Cu paste or of a other suitable paste.
An die Stromzuführungselektroden 7 sind Leitungsdrähte 9 angelötet, die durch den hohlen Befestigungsfuß 10 des Gehäuses 1 eine elektrische Verbindung zu einem nicht dargestellten Schalter im Fahrzeuginneren herstellen, um die Spiegelheizung im Bedarfsfall einschalt n zu können. Die Heizleistung kann einmal durch die Wahl einer entsprechenden Widerstandspaste bestimmt oder zum anderen vorzugsweise durch das Vorsehen eines nicht dargestellten Regelwiderstandes den äußeren Temperaturverhältnissen angepaßt werden. Zur elektrischen Isolierung und zum mechanischen Schutz gegenüber der Schraubenfeder 3 kann die Widerstands schicht 6 vorzugsweise mit einer Isolierschicht 8 im Siebdruckverfahren überdruckt sein oder es ist eine Isolierstoffolie vorgesehen.Lead wires 9 are soldered to the power supply electrodes 7, an electrical connection through the hollow fastening foot 10 of the housing 1 to a switch (not shown) in the vehicle interior to the mirror heater to be able to switch it on if necessary. The heating power can be chosen once a corresponding resistance paste determined or on the other hand preferably by the provision of a variable resistor, not shown, the external temperature conditions be adjusted. For electrical insulation and mechanical protection against the coil spring 3, the resistance layer 6, preferably with an insulating layer 8 can be overprinted in the screen printing process or an insulating film is provided.
Dieser auf einfache und preisgünstige Weise herstellt bare, heizbare Spiegel gestattet somit einwandfreie Sichtverhältnisse bei allen Temperaturverhältnissen und stellt somit einen wesentlichen Beitrag zur Verkehrssicherheit dar.This produces bare, heatable ones in a simple and inexpensive way Mirror thus allows perfect visibility in all temperature conditions and thus makes a significant contribution to road safety.
LeerseiteBlank page
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772710588 DE2710588A1 (en) | 1977-03-11 | 1977-03-11 | Heated exterior driving mirror - has resistive heating backing layer keeping surface clear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772710588 DE2710588A1 (en) | 1977-03-11 | 1977-03-11 | Heated exterior driving mirror - has resistive heating backing layer keeping surface clear |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2710588A1 true DE2710588A1 (en) | 1978-09-14 |
Family
ID=6003329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772710588 Withdrawn DE2710588A1 (en) | 1977-03-11 | 1977-03-11 | Heated exterior driving mirror - has resistive heating backing layer keeping surface clear |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2710588A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309023A1 (en) * | 1983-03-14 | 1984-09-20 | Deutsche Spezialglas Ag, 3223 Delligsen | Heatable mirror and method for producing such a mirror |
DE3309024A1 (en) * | 1983-03-14 | 1984-09-20 | Deutsche Spezialglas Ag, 3223 Delligsen | Heatable mirror having a back surface protected against corrosion |
EP0160198A1 (en) * | 1984-03-31 | 1985-11-06 | Bayer Ag | Electrically heatable reflection element |
FR2583176A1 (en) * | 1985-05-13 | 1986-12-12 | Metagal Ind Comercio Ltda | Process for manufacturing an electrically heated rear-view mirror and rear-view mirror manufactured according to this process |
US5155625A (en) * | 1989-03-24 | 1992-10-13 | Murakami Kaimeido Co., Ltd. | Water-drop-repellent mirror including a vibration plate and heating means |
WO1995031084A1 (en) * | 1994-05-10 | 1995-11-16 | Negawatt Gmbh | Heating element for a sheet electrical insulator |
-
1977
- 1977-03-11 DE DE19772710588 patent/DE2710588A1/en not_active Withdrawn
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309023A1 (en) * | 1983-03-14 | 1984-09-20 | Deutsche Spezialglas Ag, 3223 Delligsen | Heatable mirror and method for producing such a mirror |
DE3309024A1 (en) * | 1983-03-14 | 1984-09-20 | Deutsche Spezialglas Ag, 3223 Delligsen | Heatable mirror having a back surface protected against corrosion |
EP0160198A1 (en) * | 1984-03-31 | 1985-11-06 | Bayer Ag | Electrically heatable reflection element |
JPS60229746A (en) * | 1984-03-31 | 1985-11-15 | バイエル・アクチエンゲゼルシヤフト | Reflecting element which can be heated electrically |
FR2583176A1 (en) * | 1985-05-13 | 1986-12-12 | Metagal Ind Comercio Ltda | Process for manufacturing an electrically heated rear-view mirror and rear-view mirror manufactured according to this process |
US5155625A (en) * | 1989-03-24 | 1992-10-13 | Murakami Kaimeido Co., Ltd. | Water-drop-repellent mirror including a vibration plate and heating means |
WO1995031084A1 (en) * | 1994-05-10 | 1995-11-16 | Negawatt Gmbh | Heating element for a sheet electrical insulator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |