About 31 results
https://drivepatents.com/patents/1092073 · 5 Nov 2003
Sensor element (100) delivers a sensor signal depending on a moisture condensation to a sensor section of the element. The sensor section is formed as a support element (105) with a thin layer and is in flat contact with a measuring surface.
https://drivepatents.com/patents/1093018 · 24 Sep 2003
The rain sensor has several measurement paths (38) passing through the window pane (18) and optimized for the thickness (D) of the pane. In the course of at least one measurement path the radiation passes through a focusing element. A light guide element i...
https://drivepatents.com/patents/1095831 · 21 May 2003
Sensor device has housing with a base plate that is held against the inside of the windscreen using a spring. The housing comprises two halves (1, 2), the first including the base plate with light in and out coupling elements (12, 13) and the second contai...
https://drivepatents.com/patents/1097275 · 26 Mar 2003
A further transmitter/receiver (3, 30) pair is included, with associated couplers. The line between them is internally parallel to the base line of a notional trapezium.
https://drivepatents.com/patents/1099779 · 11 Dec 2002
The arrangement has an LC resonant circuit (1) as a measurement transducer, an oscillator (2) for stimulating the resonant circuit, a tuner (3) for frequency tuning of the oscillator and a measurement and evaluation circuit (4) for detecting the damping st...
https://drivepatents.com/patents/1099964 · 4 Dec 2002
Method for operating a rain sensor, especially for a motor vehicle, in which a cycled transmitter transmits radiation towards a screen. The transmitter is operated according to a fixed plan (S) so that it transmits radiation in a number of constant power l...
https://drivepatents.com/patents/1100254 · 20 Nov 2002
An object sensing device and an object sensing method in which a threshold does not have to be adjusted or updated even under the influence of external light are provided. The object sensing device includes a light source (20;30;90) for irradiating a sensi...
https://drivepatents.com/patents/1100857 · 23 Oct 2002
The device has a housing for application to a motor vehicle windscreen via a coupling medium consisting of a flexible rubber or gel-like material. An air outlet channel that communicates with the ambient air is arranged in the area of potential bubble form...
https://drivepatents.com/patents/1105363 · 10 Apr 2002
A reflective hologram (3) covers part of the light-transmitting layer (1), its structure such that a light beam (17) incident at angle alpha on the intermediate surface (13), is reflected back along virtually the same path.
https://drivepatents.com/patents/1111845 · 4 Jul 2001
An object sensor and object sensing method that sense the status of the sensing surface by detecting a dynamic impact of a rain drop, not by comparing the signal with a reference value. An object sensor sensing the status of a sensing surface by detecting ...