EP 4260122 A1 20231018 - DEVICE FOR CLEANING AN OPTICAL SURFACE
Title (en)
DEVICE FOR CLEANING AN OPTICAL SURFACE
Title (de)
VORRICHTUNG ZUR REINIGUNG EINER OPTISCHEN OBERFLÄCHE
Title (fr)
DISPOSITIF POUR NETTOYER UNE SURFACE OPTIQUE
Publication
Application
Priority
- FR 2013212 A 20201214
- EP 2021085483 W 20211213
Abstract (en)
[origin: WO2022128914A1] The invention relates to a device (5) comprising: - an optical surface (10); - a cleaning unit (15) for cleaning the optical surface, comprising at least one wave transducer (70) acoustically coupled to the optical surface, the wave transducer having a piezoelectric layer (80) and electrodes (85) of opposite polarity in contact with the piezoelectric layer, and being configured to generate at least one surface ultrasonic wave (Ws) or a Lamb wave (WL) propagating in the optical surface; - the optical surface having at least one region of optical interest (100) not superposed on the wave transducer, the device comprising an apparatus (20) configured to sense and/or to emit radiation (R) through the region of optical interest (100).
IPC 8 full level
G02B 27/00 (2006.01); B08B 7/02 (2006.01); B08B 11/04 (2006.01); B60S 1/02 (2006.01); B60S 1/56 (2006.01); G01S 7/481 (2006.01); G01S 7/497 (2006.01)
CPC (source: EP US)
B08B 7/028 (2013.01 - EP US); B60S 1/56 (2013.01 - EP US); G01S 7/4813 (2013.01 - EP); G01S 7/497 (2013.01 - EP); G02B 27/0006 (2013.01 - EP US); B60S 1/02 (2013.01 - EP); G01S 2007/4977 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3117384 A1 20220617; CN 116710831 A 20230905; EP 4260122 A1 20231018; JP 2023554020 A 20231226; US 2024045200 A1 20240208; WO 2022128914 A1 20220623
DOCDB simple family (application)
FR 2013212 A 20201214; CN 202180090533 A 20211213; EP 2021085483 W 20211213; EP 21839084 A 20211213; JP 2023535958 A 20211213; US 202118267280 A 20211213