Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020064794 - OPTICAL COVER FOR DETECTION DEVICE

Publication Number WO/2020/064794
Publication Date 02.04.2020
International Application No. PCT/EP2019/075795
International Filing Date 25.09.2019
IPC
G01S 17/89 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
88Lidar systems, specially adapted for specific applications
89for mapping or imaging
G01S 7/481 2006.01
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
48of systems according to group G01S17/58
481Constructional features, e.g. arrangements of optical elements
CPC
G01S 2013/93276
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
9327Sensor installation details
93276in the windshield area
G01S 7/4813
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4811common to transmitter and receiver
4813Housing arrangements
Applicants
  • AGC GLASS EUROPE [BE]/[BE]
Inventors
  • LI, Meijie
  • SARTENAER, Yannick
  • FRASELLE, Quentin
  • LAMBRICHT, Thomas
Agents
  • CHABOU, Samia
Priority Data
18197023.726.09.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL COVER FOR DETECTION DEVICE
(FR) COUVERCLE OPTIQUE DE DISPOSITIF DE DÉTECTION
Abstract
(EN)
The present invention concerns a detection device comprising (a) an optical device (101) comprising at least one light source (1) and at least one light sensitive element (2) which are optically decoupled inside the detection device (100); (b) a protective housing (4) enclosing said optical device (101), and comprising an optical cover (5) having one internal surface (103) facing the optical device and an external surface (102) opposite to the internal surface. The optical cover (5) is transparent at the operating wavelength of the said optical device (101), and comprises at least (2) separate apertures, a first aperture (51) facing the light source (1) and a second aperture (52) facing the light sensitive element (2). According to the present invention, the optical cover (5) is made in one piece provided with a diffusing, absorbing, multilayer elements, and/or wavelength-changing elements or a combination thereof, placed between the at least the first (51) and the second (52) apertures in an optical decoupling zone (9), outside the field of view of the light source (1) and the sensitive element (2) in a way (15) to avoid the stray light travelling from the light source (1) to the sensitive element (2) within the optical cover (5).
(FR)
La présente invention concerne un dispositif de détection comprenant (a) un dispositif optique (101) comprenant au moins une source de lumière (1) et au moins un élément sensible à la lumière (2) optiquement découplés à l'intérieur du dispositif de détection (100) ; (b) un boîtier de protection (4) entourant ledit dispositif optique (101), et comprenant un couvercle optique (5) présentant une surface interne (103) faisant face au dispositif optique et une surface externe (102) opposée à la surface interne. Le couvercle optique (5) est transparent à la longueur d'onde de fonctionnement dudit dispositif optique (101), et comprend au moins (2) des ouvertures séparées, une première ouverture (51) faisant face à la source de lumière (1) et une seconde ouverture (52) faisant face à l'élément sensible à la lumière (2). Selon la présente invention, le couvercle optique (5) est réalisé d'une seule pièce comprenant des éléments diffusants, absorbants et multicouches et/ou des éléments de changement de longueur d'onde ou une combinaison de ces derniers, placés entre au moins lesdites première (51) et seconde (52) ouvertures dans une zone de découplage optique (9), à l'extérieur du champ de vision de la source de lumière (1) et de l'élément sensible (2) de manière (15) à éviter la lumière parasite allant de la source de lumière (1) à l'élément sensible (2) à l'intérieur du couvercle optique (5).
Latest bibliographic data on file with the International Bureau