Processing

Please wait...

Settings

Settings

Goto Application

1. WO2000024614 - SYSTEM FOR DETECTING HUMIDITY AND USE ON A MOTOR VEHICLE WINDSCREEN

Publication Number WO/2000/024614
Publication Date 04.05.2000
International Application No. PCT/FR1999/002577
International Filing Date 22.10.1999
IPC
B60S 1/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1Cleaning of vehicles
02Cleaning windscreens, windows, or optical devices
04Wipers or the like, e.g. scrapers
06characterised by the drive
08electrically driven
G01N 21/43 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
41Refractivity; Phase-affecting properties, e.g. optical path length
43by measuring critical angle
CPC
B60S 1/0822
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1Cleaning of vehicles
02Cleaning windscreens, windows or optical devices
04Wipers or the like, e.g. scrapers
06characterised by the drive
08electrically driven
0818including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
0822characterized by the arrangement or type of detection means
B60S 1/0837
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1Cleaning of vehicles
02Cleaning windscreens, windows or optical devices
04Wipers or the like, e.g. scrapers
06characterised by the drive
08electrically driven
0818including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
0822characterized by the arrangement or type of detection means
0833Optical rain sensor
0837with a particular arrangement of the optical elements
B60S 1/0874
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1Cleaning of vehicles
02Cleaning windscreens, windows or optical devices
04Wipers or the like, e.g. scrapers
06characterised by the drive
08electrically driven
0818including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
0822characterized by the arrangement or type of detection means
0874characterized by the position of the sensor on the windshield
G01N 21/43
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
41Refractivity; Phase-affecting properties, e.g. optical path length
43by measuring critical angle
Applicants
  • THOMSON-CSF [FR]/[FR] (AllExceptUS)
  • LEHUREAU, Jean-Claude [FR]/[FR] (UsOnly)
Inventors
  • LEHUREAU, Jean-Claude
Agents
  • LARDIC, René
Priority Data
98/1344727.10.1998FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) SYSTEM FOR DETECTING HUMIDITY AND USE ON A MOTOR VEHICLE WINDSCREEN
(FR) SYSTEME DE DETECTION D'HUMIDITE ET SON APPLICATION A UN PARE-BRISE DE VEHICULE
Abstract
(EN)
The invention concerns a system for detecting humidity on a part (1) surface (10), comprising: a light source (2) emitting a source beam (F1); a diffraction grating (3) receiving said source beam (F1), and supplying at least a diffracted beam (F'2) and a beam transmitted (F2) undiffracted; an optical system (4) focusing or collimating one at least of the beams supplied by the diffraction grating into a specific zone (11) of the surface (10); a photodetector (5) capable of receiving light from the surface (10) zone (11) through the optical system and the diffraction grating.
(FR)
Ce système de détection d'humidité sur la surface (10) d'une pièce (1), comporte: une source lumineuse (2) émettant un faisceau source (F1); un réseau de diffraction (3) recevant le faisceau source (F1), et fournissant au moins un faisceau diffracté (F'2) et un faisceau transmis (F2) sans diffraction; un système optique (4) focalisant ou collimatant l'un au moins des faisceaux fournis par le réseau de diffraction en une zone (11) déterminée de la surface (10); un photodétecteur (5) capable de recevoir de la lumière de la zone (11) de la surface (10) à travers le système optique et le réseau de diffraction.
Latest bibliographic data on file with the International Bureau