Camera device and motor vehicle therewith
11173839 · 2021-11-16
Assignee
Inventors
Cpc classification
B60R11/04
PERFORMING OPERATIONS; TRANSPORTING
F16H25/20
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B60R1/30
PERFORMING OPERATIONS; TRANSPORTING
B60R1/27
PERFORMING OPERATIONS; TRANSPORTING
B60R2011/008
PERFORMING OPERATIONS; TRANSPORTING
B60R2300/10
PERFORMING OPERATIONS; TRANSPORTING
H04N23/52
ELECTRICITY
B60R2300/20
PERFORMING OPERATIONS; TRANSPORTING
H04N7/18
ELECTRICITY
B60R2300/30
PERFORMING OPERATIONS; TRANSPORTING
H04N23/695
ELECTRICITY
F16H2025/2081
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B60S1/04
PERFORMING OPERATIONS; TRANSPORTING
International classification
B60R1/00
PERFORMING OPERATIONS; TRANSPORTING
B60S1/04
PERFORMING OPERATIONS; TRANSPORTING
H04N7/18
ELECTRICITY
F16H25/20
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A camera module for use in a vehicle includes a camera for capturing a surrounding of the vehicle, and which is configured to move from a retracted position to a deployed position, a camera lens forming a housing or part of the housing around the camera, a camera holder which carries the camera and the surrounding camera lens, and a drive system including a motor for moving the camera from the retracted position to the deployed position or from the deployed position to the retracted position.
Claims
1. A camera module for use in a vehicle, comprising: a camera for capturing a surrounding of the vehicle, and which is configured to move from a retracted position to a deployed position; a camera lens forming a housing or part of the housing around the camera; a camera holder which carries the camera and the surrounding camera lens; a camera cap which is configured to be flush with a vehicle surface in response to the camera being in the retracted position so that the camera is completely retracted beneath the vehicle surface; and a drive system comprising a motor for moving the camera from the retracted position to the deployed position or from the deployed position to the retracted position.
2. The camera module of claim 1, further comprising a camera lens cleaner which is fixed in an opening of the vehicle surface so that the camera lens is cleaned as the camera moves from the retracted position to the deployed position or from the deployed position to the retracted position.
3. The camera module of claim 1, wherein in response to dirt, debris, or obstruction being detected, the drive system actuates a blinking motion in which the camera module is moved to the retracted position and subsequently returned to the deployed position.
4. The camera module of claim 1, wherein the camera lens forms the housing or part of the housing around the camera and has a substantially cylindrical shape comprising a concave hemispherical dome or a semi-hemispherical surface at a top of the housing.
5. The camera module of claim 4, further comprising a substantially reflective material on the hemispherical dome or the semi-hemispherical surface having at least 50% reflectivity and forming a mangin mirror.
6. The camera module of claim 4, wherein a focal point of the camera is located at a focal point of the mangin mirror so that the camera captures a 360 degree view of the surrounding of the vehicle.
7. The camera module of claim 1, wherein the field of view of the camera is electronically cropped before being displayed in the vehicle to remove regions of a captured view.
8. The camera module of claim 1, wherein the drive system further comprises a pinion gear which is driven by the motor, and a jack-screw which is driven by the pinion gear and axially moves the camera from the retracted position to the deployed position or from the deployed position to the retracted position.
9. The camera module of claim 2, wherein the camera lens cleaner comprises at least one of a circular, square, triangular, or pentagonal shape and is formed of at least one of rubber or polymer material.
10. The camera module of claim 1, wherein the housing around the camera has a substantially cube shape, the camera lens forms one side of the housing around the camera, and the camera module further comprises opaque shields which form three sides of the housing around the camera.
11. The camera module of claim 10, further comprising a substantially reflective material on a top surface of the housing around the camera having at least 50% reflectivity.
12. A camera module for use in a vehicle, comprising: a camera for capturing an image surrounding the vehicle, and which is configured to move from a retracted position to a deployed position; a camera lens forming a housing around the camera; a camera holder which carries the camera and the surrounding camera lens; a camera lens cleaner which is fixed in an opening of the vehicle surface so that the camera lens is cleaned as the camera moves from the retracted position to the deployed position or from the deployed position to the retracted position; and a drive system comprising a motor for moving the camera from the retracted position to the deployed position or from the deployed position to the retracted position.
13. The camera module of claim 12, further comprising a camera cap which is configured to be flush with the vehicle surface in response to the camera being in the retracted position so that the camera is completely retracted beneath the vehicle surface.
14. The camera module of claim 12, wherein in response to dirt, debris, or obstruction being detected, the drive system actuates a blinking motion in which the camera module is moved to the retracted position and subsequently returned to the deployed position.
15. The camera module of claim 12, wherein the camera lens forms the housing or part of the housing around the camera and has a substantially cylindrical shape comprising a concave hemispherical dome or a semi-hemispherical surface at a top of the housing.
16. The camera module of claim 15, further comprising a substantially reflective material on the hemispherical dome or the semi-hemispherical surface having at least 50% reflectivity and forming a mangin mirror.
17. The camera module of claim 15, wherein a viewing field of the camera module corresponds to one or more of a viewing field of a main outer rearview mirror, a main outer sideview mirror, a main interior rearview mirror, a main interior sideview mirror, a wide-angle mirror, a ramp mirror, or a front mirror of a vehicle.
18. The camera module of claim 17, wherein the field of view of the camera is electronically cropped before being displayed in the vehicle to remove regions of a captured view.
19. The camera module of claim 12, wherein the drive system further comprises a pinion gear which is driven by the motor, and a jack-screw which is driven by the pinion gear and axially moves the camera from the retracted position to the deployed position or from the deployed position to the retracted position.
20. The camera module of claim 12, wherein the camera lens cleaner comprises at least one of a circular, square, triangular, or pentagonal shape and is formed of at least one of rubber or polymer material.
21. The camera module of claim 12, wherein the housing around the camera has a substantially cube shape, the camera lens forms one side of the housing around the camera, and the camera module further comprises opaque shields which form three sides of the housing around the camera.
22. The camera module of claim 21, further comprising a substantially reflective material on a top surface of the housing around the camera having at least 50% reflectivity.
23. The camera module of claim 1, wherein a viewing field of the camera module corresponds to one or more of a viewing field of a main outer rearview mirror, a main outer sideview mirror, a main interior rearview mirror, a main interior sideview mirror, a wide-angle mirror, a ramp mirror, or a front mirror of a vehicle.
24. The camera module of claim 1, wherein the housing around the camera comprises at least one of an opaque shield and a substantially reflective material on a surface.
25. The camera module of claim 12, wherein the housing around the camera comprises at least one of an opaque shield and a substantially reflective material on a surface.
26. A camera module for use in a vehicle, comprising: a camera for capturing a surrounding of the vehicle, and which is configured to move from a retracted position to a deployed position; a camera lens forming a housing or part of the housing around the camera; a camera holder which carries the camera and the surrounding camera lens; a camera cap which is configured to be flush with a vehicle surface in response to the camera being in the retracted position so that the camera is completely retracted beneath the vehicle surface; and a drive system comprising a motor for moving the camera from the retracted position to the deployed position or from the deployed position to the retracted position, wherein the housing around the camera comprises at least one of an opaque shield and a substantially reflective material on a surface.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The foregoing summary, as well as the following detailed description, will be better understood when read in conjunction with the appended drawings. For the purpose of illustration, certain examples of the present description are shown in the drawings. It should be understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an implementation of system, apparatuses, and methods consistent with the present description and, together with the description, serve to explain advantages and principles consistent with the invention.
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(10) Throughout the drawings and the detailed description, unless otherwise described, the same drawing reference numerals will be understood to refer to the same elements, features, and structures. The relative size and depiction of these elements may be exaggerated for clarity, illustration, and convenience.
DETAILED DESCRIPTION
(11) The following detailed description is provided to assist the reader in gaining a comprehensive understanding of the methods, apparatuses, and/or systems described herein. Accordingly, various changes, modifications, and equivalents of the systems, apparatuses and/or methods described herein will be suggested to those of ordinary skill in the art. Also, descriptions of well-known functions and constructions may be omitted for increased clarity and conciseness.
(12) The term “rear view” is here defined as a view of the surrounding area of the motor vehicle, which is not in the field of view of a driver, i.e. the directions opposing, left, right, below and above of the viewing direction, but can also comprise the view in the direction of the viewing direction of the driver and/or any combinations of the directions.
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(14) Camera modules may be integrated into side parts of a vehicle body, but also into doors or exterior rearview devices.
(15) In an example, the camera module 20 of
(16) The camera module 20′ of
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(18) The camera module body 2′ of
(19) For the camera module 20, 20′ to be able to function properly, the optical element 4, 4′ has to be clean, i.e. substantially free of debris, dirt, water droplets, snow ice and other matter covering the optical element 4, 4′ and, thus, hindering the electromagnetic radiation to reach the camera sensor and/or distorting its properties. To ensure that the optical element 4 is clean, different cleaning means can be used. The cleaning means may include a static cleaning means 5, 5′ and an active cleaning means 6, 6′.
(20) The static cleaning means 5, 5′ may be mounted on or in the vehicle body 1, 1′ in such a way that, when the camera module 20, 20′ changes between the retraced state and the deployed state, the optical element 4, 4′ comes at least partly in contact with the static cleaning means 5, 5′. With such a relative movement debris covering the optical element 4, 4′ is mechanically removed by wiping or the like.
(21) Exemplarily shown in
(22) The static cleaning means 5, 5′ may be selected from various forms and materials. For example, the static cleaning means 5, 5′ may include wipers, in particular with wiper arms, wiper blades, wiping cloth, wiping tissues, brushes, lips and combinations thereof. In addition, any fabric, rubber, elastomeric, fiber or sponge material may be used. At least one important feature, for example, is that the static cleaning means 5, 5′ will automatically effect a cleaning when the camera module body 2, 2′ changes between the retracted and the deployed state. This can happen as a result of a vehicle function being activated, for example locking or unlocking of doors, driving forwards or backwards, activating a display device of the vehicle and/or manual activation of a movement of the camera module body 2, 2′ by the driver. The embodiment of
(23) The active cleaning means 6, 6′ may also include various means for actively cleaning the optical element 4, 4′. In the embodiments of
(24) In
(25) In
(26) Locating the nozzle on the camera module body 2 has the advantage of an easy integration of the components into the camera module 20, whereas locating the nozzle on the vehicle body 1′ can change the appearance of the vehicle styling, but leaves the nozzle prone to damages from the outside. A nozzle located within the cavity of the camera module body can have the advantage that it is more easily integrated into the vehicle without the danger of receiving damage from the outside. But with such a configuration (not shown), depending on the mechanical realization of the camera deployment system, it could be possible that the cleaning of the optical element cannot not be performed when the camera module body is in the deployed state, such that the camera module body has to be retraced into the cavity for cleaning.
(27) On the one hand, if cleaning is to be performed during operation of the vehicle, it may be an advantage to allow cleaning when the camera module is in the deployed state. On the other hand, if the camera module needs to be cleaned, the information coming from the camera module might not reliable, such that the time needed for retracing, cleaning and redeploying is not critical. One additional advantage of moving the camera module from the deployed into the retracted state for cleaning is the interaction with the static cleaning means during such a movement, which results in an enhanced cleaning effect.
(28) One disadvantage of using only static cleaning means is that at some point of time they also have to be cleaned or replaced to fulfill a mechanical cleaning in a satisfactory manner. Due to the combination with active cleaning means, a cleaning of the static cleaning means can be automatically achieved. For example, the nozzle of the active cleaning means 6 of
(29) In addition or alternatively, the active cleaning means can be adapted to be movable such as to allow directing a cleaning fluid jet at different directions, therefore targeting also a static cleaning means. In
(30) Depending on the location of the active cleaning means, additional active cleaning means can be employed. For example when the active cleaning means is located on the vehicle body, an additional active cleaning means can be situated inside the cavity of the camera module, such that it can also target the passive cleaning means.
(31) A movable active cleaning means can also be used to clean other devices or parts. For example, one can place a device or part in front of or adjacent to the camera module and activate a cleaning function for example by pushing a button such that the nozzle moves not to direct the cleaning fluid onto the optical element, but towards the region in front or adjacent of the camera module and, thus, onto the device or target. For example when a mobile phone or the hands of a vehicle user are dirty, they can be cleaned in such a manner.
(32) In another example, a human or animal may be soiling or damaging a vehicle, for example by scratching, urinating or the like. When the camera module is silently deployed, neither the human nor the animal will be aware and warned of its presence. As a countermeasure and to prevent damaging or soiling, the nozzle of an active cleaning means can then be directed at a human or animal as soon as the presence thereof is detected by a sensor (not shown) such that the cleaning detergent can be sprayed on the human or animal to scare them away.
(33) To minimize the noise which might occur when moving the camera module 20, 20′ of between the deployed state shown in
(34) Noise cancellation systems typically include on the one hand microphones for analyzing the present noises, and on the other hand speakers for outputting acoustic sound waves to cancel or drown out the present noises.
(35) One additional advantage of having at least one microphone is the possibility of noise analyses, not restricted to the actuators. Such analysis may, for example, indicate the presence of damaged or exhausted parts. For example, having a tire with a nail or having a flat tire changes the noise of the vehicle in a characteristic way. Another example is the change of noise over time, indicating an exhausted part. When the lifetime of a motor, gear, actuator or other mechanically moving or mechanically stressed part is nearly reached, often the noise emitted by that part will change in a characteristic way leading to the perception of the future failure and giving a user the option to replace that part before breaking or catastrophic failure occurs.
(36) The camera device of the invention may also be provided with an additional element for providing information and/or warning. Such an additional element can include a display module such as display module 8′ shown in
(37) Any light module presently used in rear view mirrors can be integrated into a camera device. In this respect, reference is made to the light modules listed in the introduction of this specification.
(38) The additional element can be arranged on the module body as shown in
(39) As the camera module 20, 20′ of the camera device functions similar as a pop up head light which can only be seen when in use, the information and/or warning message provided by the additional element attracts the attention due to this pop up effect even more.
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(42) Referring to
(43) Still referring to
(44) Situated at the top of the cylinder shaped camera lens 22 is a concave hemispherical dome shaped feature made from transparent material. The inner surface of this hemispherical dome may be coated with a reflective surface 40 with a general reflectivity of at least about 50%. This reflective surface 40 may effectively form a mangin mirror 40 with a substantially hemispherical lens having an at least approximately 50% reflective surface coating on the inside of the camera lens 22. While an at least approximately 50% reflective surface is described, any level of reflectivity may be used. For example, a low level of reflectivity allows the camera 50 to see through the reflective coating and record any image reflected in a 360° panoramic view of the camera. In an example, the camera 50 is mounted at the focal point of both the camera 50 and the mangin mirror 40. This configuration allows the camera 50 to capture a full panoramic hemispherical view of the surrounding area. This configuration creates, in effect, an aperture camera. The camera 50 field of view may be electronically “cropped” to remove any view from above the horizon line not pertinent to the direct function of the camera 50.
(45) A camera lens cleaner 60 may also be provided and may be positioned at the opening of the vehicle sheet metal surface 30. In this way, each time the camera 50 is deployed or retracted, the camera lens 22 is automatically wiped clean. In an example, the camera lens cleaner 60 is formed from is a thin rubber-like blade made from a suitable material. Some example of materials include a rubber material, a polymer material, or a combination of suitable materials for wiping the camera lens 22.
(46) Connected to the camera 50 and extending through the camera holder 70 may be a standard cable connection 80 such as a standard coax cable as used for most commercial cameras. Further, a lift/retract mechanism or drive system includes an electrical motor 90, a pinion gear set 92, and a helix jack-screw 94 which drives the camera module. In this example, the drive system is a jack-screw lift/retract mechanism that allows the camera module to move linearly from the stowed or retracted position to the used, exposed, or deployed position. The electric motor 90 turns the pinion gear 92 that is axially connected to the jack-screw 94 by a threaded central hub. As the electric motor 90 spins, it drives the pinion gear 92. As the pinion gear 92 rotates it moves the jack-screw 94 up or down depending on the direction of rotation. This lifts or retracts the camera module to which it is attached; for example, it lifts or retracts a plate in the camera holder 70 to which the camera 50, the camera lens 22 and the camera cap 10 are attached. In an example, the jack-screw 94 may be split along its axis and a spring clip may be inserted in the void. This allow the jack-screw 94 threads to collapse and slip under manual load and allow for a manual over-ride of the lift/retract mechanism, as needed. The lift/retract mechanism is not limited to the example described. In various other aspect, the drive system could also be pneumatically, hydraulically or electro-mechanically driven to provide a similar actuation.
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(48) Referring to
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(51) Still referring to
(52) In the above example camera modules, as illustrated in
(53) According to various aspects of the described camera modules, because the actual camera lens is not exposed to the outside environment and the housing lens is cleaned automatically once the camera module is retracted, a clean and clear image can be captured by the camera. In an example, the camera modules may be programmed so that, once a soiled lens is detected by a sensor, a “blinking” operation is initiated by quickly retracting the camera module and then deploying it to the use position. This would clean the lens of any dirt, debris, or obstructions.
(54) In addition, because the actual camera of the described camera modules is not exposed to the outside environment, a measure of protection to the camera is provided as the unit fully retracts into the vehicle when not in use. This configuration also provides for an aesthetically pleasing appearance when the vehicle is parked and reduces the opportunity for random vandalism or theft of the camera system by making the camera systems inconspicuous when the vehicle is not being driven.
(55) It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that the invention disclosed herein is not limited to the particular embodiments disclosed, and is intended to cover modifications within the spirit and scope of the present invention.
REFERENCE LIST
(56) 1 vehicle body 1′ vehicle body 2 camera module body 2′ camera module body 3 camera aperture 3′ camera aperture 4 optical element 4′ optical element 5 static wiper blade 7′ push bottom 8′ display module 10 camera cap 20 camera module 20′ camera module 22 camera lens 30 sheet metal surface 40 reflective surface 50 camera 60 camera lens cleaner 70 camera holder 80 standard cable connection 90 electrical motor 92 pinion gear set 94 helix jack-screw 102 shields 110 lens 120 reflective surface