Optical: systems and elements – Mirror – With support
Patent
1999-03-02
2000-05-30
Spyrou, Cassandra
Optical: systems and elements
Mirror
With support
359872, 359873, G02B 7182
Patent
active
060697563
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention relates to a manually adjustable mirror having a device for detecting the position thereof.
BACKGROUND OF THE INVENTION
Devices for the determination of the orientation of a motor vehicle mirror relative to the motor vehicle, in particular, an interior mirror are well known. Therein, sensors as angle transmitters are operatively connected to the interior mirror, for example, which are arranged outside the interior mirror. The values measured by the device for detection of the mirror position, for example, are used to adjust the position of another mirror, such as a side mirror, to the seat position and the driver's view depending on the orientation of the interior mirror.
Accordingly, the side mirrors can be automatically positioned for the driver by a proper adjustment of the interior mirror such that an optimum rearview field is constantly guaranteed.
Such systems provide to the motor vehicle system in the most terms information about the size, seat position, direction of view and driver's field of view. Hence, also other functions depending on the driver's position or the driver's direction of view and the driver's field of view, respectively, can be affected and controlled by the information derived via the interior mirror.
Mechanically dipping mirrors have not only to be rotatable relative to the mirror foot, in order to adapt the mirror position to the driver's position. Additionally, the mirror surface has to be rotatable about the transversal mirror axis at a defined angle, in order to dip the mirror. Therefore, the mirror housing and mirror glass are rotatable secured to a spherical member via a pivot, a toggle link and a tilting lever, with the spherical member in turn forms together with a ball fixed to the mirror foot a ball-and-socket joint being rotatable in all directions.
Switching over from day trip to night trip in order to avoid interfering reflexions caused by headlights of following motor vehicles is achieved by actuating the tilting lever, with the aid thereof the mirror housing and mirror glass can be rotated about the transversal vehicle axis at an predetermined angle.
SUMMARY OF THE INVENTION AND ADVANTAGES
When the position of the mirror glass relative to the vehicle is detected, so the tilting motion with the switching over from day trip to night trip is also detected, with the tilting motion being unimportant for the geometry of the optical path from the driver to the mirror and rearwardly, such that errors result with following-up the adjustment of the side mirrors.
It is the object of the present invention to provide a manually adjustable mirror having a respective device for detection the position thereof, which does not comprise any external parts to be mounted separately from the mirror and optically interfering parts as well, and is flat formed, and in which furthermore the tilting of the mirror element for switching over between day trip and night trip does not affect the measured position of the mirror. Furthermore, the device according to the invention is to be constructed safe, reliable and simply as well as to provide measurements with a good accuracy.
This object is solved with the device according to the invention in combination with the characterizing features thereof.
By locating the transducers and member for controlling inside the mirror housing, any external sensors are not provided, which are optically interfering or require an additional assembly. Furthermore, by receiving the sensors inside the mirror housing, a flat construction of the mirror remains maintained.
Advantageous improvements of the motor vehicle mirror according to the invention are described in the dependent claims.
By fixedly mounting the transducers to a fastening member, besides this the mirror housing is pivotable for dipping, and the controlling members are connected to the mirror foot, only motions of the fastening member relative to the mirror foot are detected. Of course, the coordination of the transducer and the device affecting the transducer tow
Heinz Jurgen
Hempel Thomas
Magna Reflex Holding GmbH
Sikder Mohammad
Spyrou Cassandra
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