WO2022268460A1 - Module optique comprenant une caméra et un élément opaque pour absorber la lumière - Google Patents
Module optique comprenant une caméra et un élément opaque pour absorber la lumière Download PDFInfo
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- WO2022268460A1 WO2022268460A1 PCT/EP2022/064854 EP2022064854W WO2022268460A1 WO 2022268460 A1 WO2022268460 A1 WO 2022268460A1 EP 2022064854 W EP2022064854 W EP 2022064854W WO 2022268460 A1 WO2022268460 A1 WO 2022268460A1
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- Prior art keywords
- camera
- optical module
- opaque
- light
- limiting embodiment
- Prior art date
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- 230000003287 optical effect Effects 0.000 title claims abstract description 90
- 239000011521 glass Substances 0.000 claims abstract description 20
- 239000013078 crystal Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 230000003071 parasitic effect Effects 0.000 claims description 10
- 230000010354 integration Effects 0.000 description 14
- 238000005286 illumination Methods 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 239000003973 paint Substances 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 206010052143 Ocular discomfort Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000000049 pigment Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
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Images
Classifications
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- 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
- G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
Definitions
- the present invention relates to an optical module for a vehicle. It finds a particular but non-limiting application in motor vehicles.
- an example known to those skilled in the art of an optical module 6 for a vehicle comprises: - a camera 60 comprising a set of optical lenses 600, - a housing 61 configured to receive said camera 60, - a mirror 62 arranged opposite said camera 60.
- the glass 62 is opaque which makes it possible to conceal the camera 60 from outside the vehicle. Thus, an observer outside the vehicle does not see the camera 60 when looking at the optical module 6.
- the camera 60 is used to monitor the environment outside the vehicle. It generates images of the environment outside the vehicle, images that help the driver of the vehicle, in particular for parking said vehicle. The latter displays the images from the camera 60 on its on-board screen.
- a drawback of this state of the art is that the light Lx which arrives from outside the vehicle, in particular the light which comes from above, is reflected on the set of optical lenses 600 towards the inner surface 620 of the glass 62 creating thus primary reflections r1 as illustrated on the .
- These primary reflections r1 are reflections of order 1.
- These primary reflections r1 are in turn reflected on the inner surface 620 of said crystal 62 and thus create secondary reflections r2 which return to the set of opaque lenses 600 such that illustrated on the .
- These secondary reflections r2 are reflections of order 2.
- These secondary reflections r2 create a parasitic diffusion of the light Lx inside the set of optical lenses 600 called flare phenomenon.
- the driver will observe these secondary reflections r2 on the images generated by the camera 60, which will create visual discomfort for said driver who is viewing the images from the camera 60 on his on-board screen. This will make it difficult for him to park his vehicle.
- the present invention aims to provide an optical module which makes it possible to solve the mentioned drawback.
- the invention proposes an optical module for a vehicle, said optical module comprising: - a camera comprising a set of optical lenses, - a housing configured to receive said camera, - a glass placed facing said camera configured to conceal said camera from outside said vehicle, characterized in that said optical module further comprises an opaque element configured to absorb the light coming from outside said vehicle so as to reduce parasitic reflections of said light on said set of optical lenses of said camera.
- said optical module may also comprise one or more additional characteristics taken alone or according to any technically possible combinations, among the following.
- said parasitic reflections come from reflections of light on an internal surface of said crystal.
- said opaque element is said glass, said glass comprising a first part and a second part and being non-homogeneously opaque.
- said first part of said crystal is more opaque than said second part.
- said first part is darker than the second part.
- said first part has a greater thickness than said second part.
- said first part is made of a material that absorbs more light than that of said second part.
- said first part of said ice is opaque between 30% and 50%.
- said second part of said crystal is between 75% and 80% transparent.
- said first part of said glass is placed at an angle greater than or equal to 11° with respect to an optical axis of said camera.
- said first part of said crystal is placed at an angle greater than or equal to 21° with respect to an optical axis of said camera.
- said opaque element is an opaque cap arranged projecting from the casing of said camera.
- said opaque element is an opaque cap placed above said set of optical lenses of the camera.
- said casing comprises a non-reflecting interior surface.
- said light is natural light or light from a street lamp.
- said first part of said ice is opaque between 30% and 50% and said second part of said ice is transparent between 75% and 80%
- said first part of said ice is 50% opaque and said second part of said ice is 80% transparent.
- said first part of said crystal is variably opaque.
- said first part of said glass has a thickness greater than 2mm and said second part has a thickness substantially equal to 2mm.
- the first part is arranged at an angle of between 11° and 25° relative to an optical axis of said camera.
- FIG. 1 is a schematic view of an optical module for a vehicle, said optical module comprising a camera, a housing for said camera, and a lens, according to the state of the prior art,
- FIG. 1 is a schematic view of an optical module for a vehicle, said optical module comprising a camera, a housing for said camera, a lens, and an opaque element, according to the invention
- FIG. 1 is a schematic side view of an optical module of the , according to a first embodiment variant of a first non-limiting embodiment according to which said lens and said opaque element are combined,
- FIG. 1 is a schematic side view of an optical module of the , according to a second alternative embodiment of a first non-limiting embodiment according to which said lens and said opaque element are combined,
- FIG. 1 is a schematic side view of an optical module of the , according to a third alternative embodiment of a first non-limiting embodiment according to which said lens and said opaque element are combined,
- FIG. 1 is a schematic side view of an optical module of the , according to a first alternative embodiment of a second non-limiting embodiment according to which said lens and said opaque element are separate elements,
- FIG. 1 is a schematic side view of an optical module of the , according to a second alternative embodiment of a second non-limiting embodiment according to which said lens and said opaque element are separate elements,
- FIG. 1 is a schematic side view of an optical module of the , said optical module being disposed at a distance from a lamppost, according to a non-limiting embodiment.
- the vehicle 2 is a motor vehicle.
- Motor vehicle means any type of motorized vehicle. This embodiment is taken as a non-limiting example in the remainder of the description. In the remainder of the description, vehicle 2 is thus otherwise called motor vehicle 2.
- the optical module 1 for a motor vehicle 2 comprises: - a camera 10, - a box 11, - a mirror 12, and - an opaque element 13.
- Camera 10 includes a set of optical lenses 100. Said set of optical lenses 100 includes one or more optical lenses. Camera 10 includes a Fov field of view.
- the camera 10 generates images i1 of the external environment of the motor vehicle 2. In other words, it generates images i1 relating to a scene of the external environment.
- the camera 10 thus detects moving objects such as other vehicles, pedestrians, bicycles, etc. or static objects such as sidewalks, road markings, buildings, trees etc.
- the images i1 are displayed on the dashboard of the motor vehicle 2 and allow the driver of the motor vehicle 2 to perform maneuvers for parking said motor vehicle 2 in a non-limiting example.
- the i1 images allow the driver to see at an intersection the vehicles which can come from the right and from the left in order to know whether he can cross the intersection safely or not.
- the images i1 are images from a reversing camera. They thus make it possible to see the pedestrians who are behind the motor vehicle 2 and thus allow the driver to carry out a reversing maneuver in complete safety without running over pedestrians.
- Camera 10 further comprises optical sensors 101 associated with optical lenses 100, said optical sensors 101 having an integration time t1.
- the integration time t1 is the opening time of the cell of the optical sensor 101.
- the camera 10 is an HDR camera called "High Dynamic Range" in English and includes multiple integration times t1.
- An HDR camera allows from three images captured at the same time of a scene with in particular a different integration time t1 to reconstruct and thus generate a single final image without noise. It also improves the light contrast of the final image so that you have more detail in the final image.
- the camera 10 is a wide angle camera. In a non-limiting example, the camera 10 has an angle of 170° horizontally in total with respect to the vehicle axis Ax. In non-limiting embodiments, the camera 10 is placed at the front, at the rear or on a side of said motor vehicle 2. In non-limiting embodiments, the camera 10 is positioned: - at the level of a logo on the front of the motor vehicle 2, or - in a front headlight, or - in a rear light, or - at the level of the rear bumper, or - at the level of a rear-view mirror.
- Housing 11 is configured to receive camera 10. It is closed by glass 12.
- interior surface 11b of housing 11 is black and non-reflecting. To be non-reflective, it is in a non-limiting embodiment, covered with a matte paint. This makes it possible to hide the camera 10 from outside the motor vehicle 2. Thus, an observer outside the motor vehicle 2 will not see the camera 10 if he looks at the optical module 1.
- the glass 12, otherwise called protective lens, is arranged facing the camera 10. It is configured to conceal the camera 10 from the outside of the motor vehicle 2. The camera 10 is thus invisible to an observer who is at the exterior of the motor vehicle 2 and looking at the optical module 1.
- the glass 12 is thus opaque.
- the crystal 12 has an opacity substantially equal to 20% (in other words a transparency substantially equal to 80%).
- the crystal 12 has an internal surface 120 facing the camera 10 and an external surface 121 opposite the internal surface 10 facing the exterior of the motor vehicle 2. In a non-limiting embodiment, the crystal 12 closes the housing 11.
- the opaque element 13 is configured to absorb the light Lx coming from outside the motor vehicle 2 so as to drastically reduce, or even completely eliminate, the parasitic reflections (referenced r2 on the of the state of the prior art) of said light Lx on the set of optical lenses 100 of the camera 10.
- the light Lx coming from outside is otherwise called outside light Lx.
- This light Lx is the natural light that comes from the sun (otherwise called zenithal light), or the light from a street lamp. It is the light which comes from above with respect to the optical axis Aa of the camera 10.
- the optical axis Aa of the camera 10 corresponds to the optical center of the whole of optical lenses 100.
- the opaque element 13 is confused with or distinct from the crystal 12. On the , the opaque element 13 is shown schematically separated from the lens 12.
- the opaque element 13 is said crystal 12.
- the opaque element 13 and said crystal 12 are thus combined.
- the crystal 12 is composed of a first part 12a, otherwise called upper part 12a, and of a second part 12b, otherwise called lower part 12b, and it is opaque in a non-homogeneous way.
- the first part 12a and the second part 12b are arranged so as to cover the field of view Fov of the camera 10.
- the first part 12a is configured to receive the Lx light directly, while the second part 12b is configured to receive a small part of the direct Lx light or no direct Lx light.
- the upper part 12a is thus above the lower part 12b along an axis Az perpendicular to the vehicle axis Ax.
- the light Lx can be reflected on the ground on which the motor vehicle 2 is located so as to reach the second part 12b in particular.
- the second part 12b will thus receive the light Lx but mostly or even totally indirectly via its reflections on the ground. It will be noted that the reflections coming from the ground create little Flare phenomenon.
- the sources of these reflections are the street lamp, the sun. Another source can be other cars.
- the upper part 12a thus extends from the top 110 of the housing 11 to approximately halfway up the camera 10, namely to approximately the optical axis Aa of the camera 10 ; and the lower part 12b extends from the bottom 111 of the casing 11 to approximately halfway up the camera 10, namely to approximately the optical axis Aa of the camera 10.
- the upper part 12a and the lower part 12b are planar.
- the camera 10 focuses up to a maximum viewing distance D1 of 20 meters.
- the camera 10 is arranged at a height h1 1 meter from the ground 5 This is the case for a camera 10 for panoramic vision called in English “Surround view camera”.
- the lamppost 4 has a size D0 of between 5m and 9m in height.
- the first part 12a is arranged at an angle ⁇ greater than or equal to 11° relative to the optical axis Aa of the camera 10. Namely, the lower end of the first part 12a stops above an angle ⁇ of 11°.
- the illumination of a lamppost 4 is approximately 500 lux, i.e. a luminous intensity of 40500cd (candela) in the case of a lamppost at a height of 5m.
- the illumination will be approximately equal to 100 lux, which is very low.
- the illumination will be approximately 250 Lux.
- the first part 12a is arranged at an angle ⁇ greater than or equal to 21° relative to the optical axis Aa of the camera 10.
- the first part 12a is arranged at an angle ⁇ of between 11° and 25° relative to the optical axis Aa of the camera 10.
- the first part 12a of the glass is more opaque than the second part 12b and therefore absorbs more light Lx while the second part 12b is more transparent and therefore allows more light Lx to pass which is reflected on the ground in particular and more light Direct Lx if it receives any.
- the first part 12a is opaque between 30% and 50% (in other words transparent between 70% and 50%), while the second part 12b is transparent between 75% and 80% (in other words opaque between 20% and 25%).
- the first part 12a is 50% opaque (in other words 50% transparent) and the second part is 80% transparent (in other words 20% opaque). This means that the first part 12a blocks 50% of the Lx light and the second part 12b allows 80% of the Lx light which arrives at the optical module 10 to pass.
- the first part 12a is variably opaque.
- the opacity of the first part 12a can gradually increase from the bottom upwards, namely from the end which is located close to the optical axis Aa of the camera 10 up to the end which is located close to the top 110 of the housing 11.
- the second part 12b is transparent in a variable manner.
- the transparency of the second part 12b can gradually increase from top to bottom, namely from the end which is located close to the optical axis Aa of the camera 10 to the end which is located near the bottom 111 of the housing 11.
- the upper part 12a absorbs the light Lx so that it only partially passes through the glass 12 at its level and there are very few parasitic reflections, if any at all, on said internal surface 120 of said glass 12 which disturb the images i1 of the camera 10. As illustrated in FIGS. 3 to 5, the upper part 12a absorbs the majority Lx' of the light Lx and allows a small part Lx'' to pass. The upper part 12a also considerably reduces or even eliminates other parasitic reflections which are other secondary reflections on the set of optical lenses 100 and which come from reflections of the external light Lx inside the glass 12, namely directly on its internal surface 120, and which return to the set of optical lenses 100.
- the first part 12a is darker than the second part 12b. This makes it more opaque. It will be noted that to make the first part 12a darker than the second part 12b, at the level of an industrial process, in a non-limiting embodiment, the upper part 12a is darkened more. Thus, instead of being at 20% opacity, the upper part 12a will be 30% opaque in a non-limiting example. In another non-limiting embodiment, the lower part 12b is made lighter. Thus, instead of being 70% transparent as for the upper part 12a, the lower part 12b will be 90% transparent in a non-limiting example. To make the upper part 12a darker, in a non-limiting example, a tinted paint can be used. In another non-limiting example, a 2K or 3K multi-shot injection process can be used.
- the first part 12a has a thickness e1 greater than the thickness e2 of said second part 12b. Thickening the material of the first part 12a makes it more opaque and thus absorbs more light Lx.
- the thickness e1 is greater than 2mm. In one non-limiting embodiment, it is equal to 3 mm to obtain an opacity of 50%. In a non-limiting embodiment, the thickness e2 is substantially equal to 2mm.
- ⁇ (4x ⁇ x k)/ ⁇ with ⁇ the wavelength of the light Lx, and k the extinction coefficient which is intrinsic to the material of the first part 12a. k depends on the refractive index and the permittivity of the material. the formulation of k being known to those skilled in the art, k is not described here.
- the first part 12a is made of a material m1 which absorbs more light Lx than the material m2 of said second part 12b.
- the lower part 12b is made of a PMMA (Polymethyl methacrylate) or PC (Polycarbonate) material.
- the upper part 12a is made of a PMMA or PC material with more colored pigments (illustrated by dots) inside which will absorb the light Lx and thus make it more opaque.
- the opaque element 13 is different from said crystal 12 and is an opaque cap. They are thus not confused.
- the glass 12 is opaque up to 20% and thus allows the light Lx coming from outside the motor vehicle 2 to pass up to 80%.
- the opaque cap 13 is flat. The opaque cap 13 is arranged so as not to interfere with the Fov field of vision of the camera 10.
- the opaque cap 13 is arranged projecting from the housing 11 of the camera 10. It extends parallel to the optical axis Aa of the camera 10 and from the top 110 of the housing 11. As can be seen the cap opaque 13 absorbs light Lx. It absorbs it in part or in whole. It depends on its opacity. In the nonlimiting example illustrated, it absorbs it entirely. In a non-limiting example, the opaque cap 13 is glued to the box 11.
- the opaque cap 13 is arranged above said set of optical lenses 100 of the camera 10. It extends parallel to the optical axis Aa of the camera 10. As can be seen the opaque cap 13 absorbs the light Lx . It absorbs it in part or in whole. It depends on its opacity. In the nonlimiting example illustrated, it absorbs it entirely. In a non-limiting embodiment of this second non-limiting embodiment, the opaque cap 13 is placed against the glass 12. In a non-limiting example, it is glued to the glass 12.
- t1 integration must be short.
- several integration times t1 are required to achieve a final image i1 with high contrast between the different areas of the image in which the details can be clearly seen in all the areas of the scene. picked up. For example, it takes a short integration time t1 to capture clouds in the sky that is brighter than the road (we darken the dark elements of the image), and it takes a long integration time t1 to capture bumps on the road darker than the sky (we saturate the sky which then becomes almost all white).
- the light intensity of the scene is greater towards the top (at sky level) than the part at the level of the optical axis Aa of the camera 10 or towards the ground.
- the opaque element 13 makes it possible to compensate for this difference in light intensity.
- the light intensity becomes more uniform over the entire image i1 generated by the camera 10.
- the opaque element 13 makes it possible to darken the top of the image i1.
- the contrast of the image i1 is reduced and the signal-to-noise ratio is increased, which makes it possible to see more details in the image i1.
- the driver who views the images i1 of the camera 10 will see the details better, which will make his maneuvers easier for parking, for example.
- the description of the invention is not limited to the embodiments described above and to the field described above.
- the optical lens assembly 100 may be treated with an anti-reflective coating.
- the upper part 12a instead of extending from the top of the housing 11 to approximately halfway up the camera 10, the upper part 12a can extend from the top 110 of the housing 11 up to 1/3 of camera 10.
- the invention described has in particular the following advantages: - it makes it possible to considerably reduce, or even eliminate, the parasitic reflections on the set of optical lenses, parasitic reflections which come from light Lx; it thus makes it possible to reduce or even eliminate the flare phenomenon so that it is no longer annoying for the driver of the vehicle 2 when he views the images from the camera, - it makes it possible to hide the camera 10 from an observer who looks at the optical module 1 from outside the motor vehicle 2, - it makes it possible to obtain a more homogeneous image and consequently to reduce the contrast in an image i1 and thus to obtain a better quality of image rendering, - it makes it possible to increase the signal-to-noise ratio, in particular in the dark parts which are generally located towards the bottom of an image i1.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
- Optical Filters (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Lens Barrels (AREA)
- Blocking Light For Cameras (AREA)
- Accessories Of Cameras (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
- une caméra 60 comprenant un ensemble de lentilles optiques 600,
- un boîtier 61 configuré pour recevoir ladite caméra 60,
- une glace 62 disposée en regard de ladite caméra 60.
- une caméra comprenant un ensemble de lentilles optiques,
- un boîtier configuré pour recevoir ladite caméra,
- une glace disposée en regard de ladite caméra configurée pour dissimuler ladite caméra depuis l’extérieur dudit véhicule, caractérisé en ce que ledit module optique comprend en outre une élément opaque configuré pour absorber la lumière provenant de l’extérieur dudit véhicule de sorte à réduire des réflexions parasites de la dite lumière sur ledit ensemble de lentilles optiques de ladite caméra.
- une caméra 10,
- un boîtier 11,
- une glace 12, et
- un élément opaque 13.
- au niveau d’un logo à l’avant du véhicule automobile 2, ou
- dans un projecteur avant, ou
- dans un feu arrière, ou
- au niveau du pare-choc arrière, ou
- au niveau d’un rétroviseur.
- elle permet de réduire considérablement, voire supprimer, les réflexions parasites sur l’ensemble de lentilles optiques, réflexions parasites qui sont issues de lumière Lx ; elle permet ainsi de réduire voire de supprimer le phénomène de Flare de sorte qu’il n’est plus gênant pour le conducteur du véhicule 2 lorsqu’il visualise les images de la caméra,
- elle permet de dissimuler la caméra 10 à un observateur qui regarde le module optique 1 depuis l’extérieur du véhicule automobile 2,
- elle permet d’obtenir une image plus homogène et par conséquent de réduire le contraste dans une image i1 et ainsi d’obtenir une meilleure qualité de rendu d’image,
- elle permet d’augmenter le ratio signal sur bruit notamment dans les parties sombres qui se situent en général vers le bas d’une image i1.
Claims (15)
- Module optique (1) pour véhicule (2), ledit module optique (1) comprenant :
- une caméra (10) comprenant un ensemble de lentilles optiques (100),
- un boîtier (11) configuré pour recevoir ladite caméra (10),
- une glace (12) disposée en regard de ladite caméra (10) configurée pour dissimuler ladite caméra (10) depuis l’extérieur dudit véhicule (2), caractérisé en ce que ledit module optique (1) comprend en outre une élément opaque (13) configuré pour absorber la lumière (Lx) provenant de l’extérieur dudit véhicule (2) de sorte à réduire des réflexions parasites de la dite lumière (Lx) sur ledit ensemble de lentilles optiques (100) de ladite caméra (10). - Module optique (1) selon la revendication 1, selon lequel lesdites réflexions parasites proviennent de réflexions de la lumière (Lx) sur une surface interne (120) de ladite glace (12).
- Module optique (1) selon l’une quelconque des revendications précédentes, selon lequel ledit élément opaque (13) est ladite glace (12), ladite glace (12) comprenant une première partie (12a) et une deuxième partie (12b) et étant opaque de façon non homogène.
- Module optique (1) selon la revendication 3, selon laquelle ladite première partie (12a) de ladite glace (12) est plus opaque que ladite deuxième partie (12b).
- Module optique (1) selon la revendication 4, selon lequel ladite première partie (12a) est plus foncée que la deuxième partie (12b).
- Module optique (1) selon la revendication 4, selon lequel ladite première partie (12a) possède une épaisseur supérieure à ladite deuxième partie (12b).
- Module optique (1) selon la revendication 4, selon lequel ladite première partie (12a) est réalisée dans un matériau (m1) plus absorbant la lumière (Lx) que celui (m2) de ladite deuxième partie (12b).
- Module optique (1) selon l’une quelconque des revendications 4 à 7, selon lequel ladite première partie (12a) de ladite glace (12) est opaque entre 30% et 50%.
- Module optique (1) selon l’une quelconque des revendications 4 à 8, selon lequel ladite deuxième partie (12b) de ladite glace (12) est transparente entre 75% et 80%.
- Module optique (1) selon l’une quelconque des revendications 3 à 9, selon lequel ladite première partie (12a) de ladite glace (12) est disposée à un angle (β) supérieur ou égal à 11° par rapport à un axe optique (Aa) de ladite caméra (10).
- Module optique (1) selon l’une quelconque des revendications 3 à 10, selon lequel ladite première partie (12a) de ladite glace (12) est disposée à un angle (β) supérieur ou égal à 21° par rapport à un axe optique (Aa) de ladite caméra (10).
- Module optique (1) selon la revendication 1 ou la revendication 2, selon lequel ledit élément opaque (13) est une casquette opaque disposée en saillie du boîtier (11) de ladite caméra (10).
- Module optique (1) selon la revendication 1 ou la revendication 2, selon lequel ledit élément opaque (13) est une casquette opaque disposée au dessus dudit ensemble de lentilles optiques (100) de la caméra (10).
- Module optique (1) selon l’une quelconque des revendications précédentes, selon lequel ledit boîtier (11) comprend une surface intérieure (11b) non réfléchissante.
- Module optique (1) selon l’une quelconque des revendications précédentes, selon lequel ladite lumière (Lx) est la lumière naturelle ou la lumière d’un lampadaire.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/565,375 US20240288687A1 (en) | 2021-06-25 | 2022-06-01 | Optical module comprising a camera and an opaque element for absorbing light |
CN202280044112.XA CN117561476A (zh) | 2021-06-25 | 2022-06-01 | 包括相机和用于吸收光的不透明元件的光学模块 |
EP22765009.0A EP4359259A1 (fr) | 2021-06-25 | 2022-06-01 | Module optique comprenant une caméra et un élément opaque pour absorber la lumière |
JP2023579382A JP2024528484A (ja) | 2021-06-25 | 2022-06-01 | カメラと、光を吸収する不透明素子とを備える光学モジュール |
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FR2106863A FR3124609A1 (fr) | 2021-06-25 | 2021-06-25 | Module optique comprenant une caméra et un élément opaque pour absorber la lumière |
FRFR2106863 | 2021-06-25 |
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WO2022268460A1 true WO2022268460A1 (fr) | 2022-12-29 |
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PCT/EP2022/064854 WO2022268460A1 (fr) | 2021-06-25 | 2022-06-01 | Module optique comprenant une caméra et un élément opaque pour absorber la lumière |
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US (1) | US20240288687A1 (fr) |
EP (1) | EP4359259A1 (fr) |
JP (1) | JP2024528484A (fr) |
CN (1) | CN117561476A (fr) |
FR (1) | FR3124609A1 (fr) |
WO (1) | WO2022268460A1 (fr) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090041452A1 (en) * | 2005-04-20 | 2009-02-12 | Autonetworks Technologies, Ltd. | Camera Cover |
DE102015100039A1 (de) * | 2015-01-05 | 2016-07-07 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Abdeckelement für eine Kameravorrichtung |
US20170274823A1 (en) * | 2016-03-25 | 2017-09-28 | Brad Call | Protected Back-Up Camera For Vehicles |
US20170343885A1 (en) * | 2016-05-25 | 2017-11-30 | George Daniel | Camera Shield System |
-
2021
- 2021-06-25 FR FR2106863A patent/FR3124609A1/fr active Pending
-
2022
- 2022-06-01 US US18/565,375 patent/US20240288687A1/en active Pending
- 2022-06-01 WO PCT/EP2022/064854 patent/WO2022268460A1/fr active Application Filing
- 2022-06-01 JP JP2023579382A patent/JP2024528484A/ja active Pending
- 2022-06-01 CN CN202280044112.XA patent/CN117561476A/zh active Pending
- 2022-06-01 EP EP22765009.0A patent/EP4359259A1/fr active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090041452A1 (en) * | 2005-04-20 | 2009-02-12 | Autonetworks Technologies, Ltd. | Camera Cover |
DE102015100039A1 (de) * | 2015-01-05 | 2016-07-07 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Abdeckelement für eine Kameravorrichtung |
US20170274823A1 (en) * | 2016-03-25 | 2017-09-28 | Brad Call | Protected Back-Up Camera For Vehicles |
US20170343885A1 (en) * | 2016-05-25 | 2017-11-30 | George Daniel | Camera Shield System |
Also Published As
Publication number | Publication date |
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EP4359259A1 (fr) | 2024-05-01 |
CN117561476A (zh) | 2024-02-13 |
JP2024528484A (ja) | 2024-07-30 |
FR3124609A1 (fr) | 2022-12-30 |
US20240288687A1 (en) | 2024-08-29 |
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