EP4602425A1 - Schutzeinheit und detektionsanordnung für ein kraftfahrzeug - Google Patents
Schutzeinheit und detektionsanordnung für ein kraftfahrzeugInfo
- Publication number
- EP4602425A1 EP4602425A1 EP23786292.5A EP23786292A EP4602425A1 EP 4602425 A1 EP4602425 A1 EP 4602425A1 EP 23786292 A EP23786292 A EP 23786292A EP 4602425 A1 EP4602425 A1 EP 4602425A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- optical surface
- optical
- protection unit
- wave
- transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
Definitions
- an objective sought by the present invention is to overcome the effects linked to the accumulation of bodies on an optical surface, such as in particular drops of rain, frost or snow.
- a known disadvantage of this technique lies in the fact that it can only be implemented with particular materials and requires particularly precise positioning of the electrodes over the entire surface where we want to control the wetting properties, making it complex even expensive, its industrialization, its mass production and its integration into products intended for the automobile industry, for example.
- the object of the present invention is to propose a new protection unit in order to respond at least largely to the previous problems and to also lead to other advantages.
- Another aim of the invention is to facilitate the cleaning of an optical surface located behind a perforated surface.
- Another aim of the invention is to allow such cleaning while camouflaging the wave transducer and making it less visible.
- At least one of the aforementioned objectives is achieved with a unit for protecting an optical surface intended to be associated with a device configured to capture and/or emit radiation through a region of optical interest of the optical surface, the protection unit comprising:
- the at least one electric wire is fixed integrally to the optical surface.
- This advantageous configuration makes it possible to prevent the at least one electrical wire from moving during use of the protection unit conforming to the first aspect of the invention, or even from breaking or being damaged during this use.
- the at least one electric wire can be securely fixed to the optical surface by any means;
- the at least one wave transducer is placed in an intermediate position between the fixing lugs and the region of optical interest.
- the at least one transducer in a plane formed by the optical surface, the at least one transducer is located between, on the one hand, a zone of the optical surface at which the fixing lugs pass or are fixed, and , on the other hand, the region of optical interest.
- the waves generated by the at least one wave transducer directly reach the region of optical interest without passing through the area of the optical surface in which the fixing lugs are located.
- a detection assembly comprising:
- the at least one device is secured to the optical surface.
- the at least one device and the optical surface are made immobile relative to each other.
- the at least one device is fixed integrally and directly to the optical surface, the at least one device comprising a fixing member collaborating with the optical surface.
- the optical surface can be glued to a front part of the at least one device, or the at least one device can be screwed or snapped onto the optical surface.
- the at least one device is securely fixed to a support to which the optical surface is also securely fixed.
- the optical surface and the at least one device comprise fixing members collaborating with the support, such as for example fixing screws or fixing clips;
- FIG. 1 illustrates a schematic electrical front view of a third embodiment of a detection assembly conforming to the second aspect of the invention and comprising a protection unit conforming to the first aspect of the invention;
- FIG. 1 illustrates a schematic electrical front view of a fourth embodiment of a detection assembly conforming to the second aspect of the invention and comprising a protection unit conforming to the first aspect of the invention.
- the invention relates to a protection unit 1 of an optical surface 10 intended to be associated with a device 21 configured to capture and/or emit radiation 23 through a region of interest optical surface 12 of the optical surface 10, the protection unit 1 comprising:
- perforated surface 30 secured to the optical surface 10 and placed opposite said optical surface 10, the perforated surface 30 comprising a solid part 31 and at least one opening 32 formed in the solid part 31;
- At least one W wave transducer 13 mechanically coupled to the optical surface 10 and configured to generate a W wave propagating through the optical surface 10 and in the direction of and/or in the region of optical interest 12.
- the perforated surface 30 is a mechanical part placed in front of the optical surface 10, relative to an average direction of propagation of the waves W emitted and/or received by the device 21 with which the protection unit 1 is intended to collaborate.
- the perforated surface 30 can be formed of one or more pieces.
- the perforated surface 30 is integral with the protection unit 1, so that there is no mobility between the perforated surface 30 and the optical surface 10.
- the perforated surface 30 comprises a logo of the motor vehicle with which the protection unit 1 is mechanically coupled.
- the W wave transducer 13 is placed in an intermediate position between the fixing lugs 16 and the region of optical interest 12.
- the transducer 13 is located between, on the one hand, a zone of the optical surface 10 at which passes where the fixing lugs 16 are fixed, and, on the other hand, a region of optical interest 12 formed by the region of the optical surface 10 at which the radiation 23 emitted and/or captured by the device 21 is transmitted through said optical surface 10.
- a detection assembly 2 comprising:
- Each device 21 is secured to the optical surface 10, so that each device 21 and the optical surface 10 are made immobile relative to each other.
- the device 21 is fixedly fixed to a support 17 to which the optical surface 10 is also fixedly fixed.
- the transducer(s) 13 associated with the optical surface 10 are acoustically coupled to said optical surface 10 – and preferably mechanically coupled to it – in order to be able to generate W waves which propagate on the second face 11B of the optical surface 10 – particularly when the W wave transducer 13 is located on or on the side of the second face 11B – or through the optical surface 10, in particular when the W wave transducer 13 is located on or on the side of the first face 11A of the optical surface 10.
- the W wave transducer 13 is misaligned with respect to the perforated surface 30 and/or with respect to its solid part 31. More particularly, in this exemplary embodiment, the W wave transducer 13 is located above the perforated surface 30. In this exemplary embodiment, an electric wire 14 connected to each W wave transducer 13 extends in a direction opposite to the perforated surface 30 and/or in the direction of a lateral edge of the optical surface 10.
- Each W wave transducer 13 is integrally fixed to the optical surface 10 by any means, and in particular by gluing.
- Each electric wire 14 is fixed integrally to the optical surface 10 by any means, and in particular by gluing.
- the W wave transducer 13 is located at the second face 11B of the optical surface 10, opposite the first face 11A of said optical surface 10 and at which the device 21 is located. This configuration thus makes it possible to clean the second face 11B located opposite the perforated surface 30 more effectively.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2210484A FR3140839B1 (fr) | 2022-10-12 | 2022-10-12 | unité de protection et ensemble de détection pour véhicule automobile |
| PCT/EP2023/078336 WO2024079259A1 (fr) | 2022-10-12 | 2023-10-12 | Unité de protection et ensemble de détection pour véhicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4602425A1 true EP4602425A1 (de) | 2025-08-20 |
Family
ID=84887781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23786292.5A Pending EP4602425A1 (de) | 2022-10-12 | 2023-10-12 | Schutzeinheit und detektionsanordnung für ein kraftfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4602425A1 (de) |
| CN (1) | CN120359449A (de) |
| FR (1) | FR3140839B1 (de) |
| WO (1) | WO2024079259A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5616774B2 (ja) * | 2010-12-22 | 2014-10-29 | オリンパスイメージング株式会社 | 振動装置及びそれを用いた画像機器 |
| GB201100290D0 (en) | 2011-01-10 | 2011-02-23 | Trevett David R M | Clearing precipitation from windaows |
| EP3623059B1 (de) * | 2017-05-12 | 2024-02-28 | Murata Manufacturing Co., Ltd. | Vibrationsvorrichtung |
| KR20180086173A (ko) | 2018-07-19 | 2018-07-30 | 명지대학교 산학협력단 | 전기습윤을 이용하는 클리닝 기기 및 이에 있어서 액적 제거 방법 |
| FR3117384B1 (fr) * | 2020-12-14 | 2026-01-23 | Centrale Lille Inst | Dispositif pour nettoyer une surface optique |
-
2022
- 2022-10-12 FR FR2210484A patent/FR3140839B1/fr active Active
-
2023
- 2023-10-12 WO PCT/EP2023/078336 patent/WO2024079259A1/fr not_active Ceased
- 2023-10-12 EP EP23786292.5A patent/EP4602425A1/de active Pending
- 2023-10-12 CN CN202380084337.2A patent/CN120359449A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024079259A1 (fr) | 2024-04-18 |
| CN120359449A (zh) | 2025-07-22 |
| FR3140839B1 (fr) | 2024-11-29 |
| FR3140839A1 (fr) | 2024-04-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20250424 |
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| AK | Designated contracting states |
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| DAX | Request for extension of the european patent (deleted) |