WO2017134121A1 - Camera system for a vehicle - Google Patents
Camera system for a vehicle Download PDFInfo
- Publication number
- WO2017134121A1 WO2017134121A1 PCT/EP2017/052178 EP2017052178W WO2017134121A1 WO 2017134121 A1 WO2017134121 A1 WO 2017134121A1 EP 2017052178 W EP2017052178 W EP 2017052178W WO 2017134121 A1 WO2017134121 A1 WO 2017134121A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- light source
- camera system
- unit
- vehicle
- Prior art date
Links
- 238000005286 illumination Methods 0.000 claims abstract description 71
- 230000003595 spectral effect Effects 0.000 claims abstract description 22
- 238000001228 spectrum Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 10
- 239000003550 marker Substances 0.000 claims description 8
- 230000001419 dependent effect Effects 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241001516739 Platonia insignis Species 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/18—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights being additional front lights
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/24—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
- B60Q1/249—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead for illuminating the field of view of a sensor or camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/11—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
Definitions
- the present invention relates to a camera system for a vehicle, which camera system may be used, for example, in a driver assistance system and mirror substitution system, respectively, for vehicles, e.g. commercial vehicles, and in particular to a camera system with additional IR (infrared) illumination.
- vehicle e.g. commercial vehicles
- IR infrared
- a camera system for a vehicle comprising a capturing unit for acquiring/capturing image data of an object in the vehicle environment, wherein the acquired image data is processed by a processing unit in order to be displayed on a display unit.
- the camera system according to the invention is provided with an illumination unit, wherein the illumination unit is adapted to emit infrared light by at least one IR light source, and wherein the illumination unit comprises at least one electric functional component, which is part of another functional unit of the vehicle, i.e. another functional unit associated with the vehicle.
- this other functional unit of the vehicle may be, for example, a automotive lighting, e.g. a flashing light/turn-signal indicator, a side marker lamp, a headlight, a rear light, an ambient lamp, an entrance lamp, and/or a sensor like, for example, radar, ultrasound, etc., and/or a radio reception device, e.g. a GPS antenna, toll antenna, CB radio antenna, radio antenna, etc., and/or an operating element for the vehicle like, for example, a handle/knob for a door opener, an operating unit for a loading flap, a crane etc.
- a automotive lighting e.g. a flashing light/turn-signal indicator, a side marker lamp, a headlight, a rear light, an ambient lamp, an entrance lamp, and/or a sensor like, for example, radar, ultrasound, etc.
- a radio reception device e.g. a GPS antenna, toll antenna, CB radio antenna, radio antenna, etc.
- an operating element for the vehicle
- the IR light source is provided together with a functional unit of the vehicle, which usually already exists at the vehicle, no additional electric lines must be provided by integration into an existing electric functional unit. At the same time, existing vehicle connections (installation sites) may be used, thus saving further costs.
- the illumination unit for the camera system according to the invention is adapted to emit light having a spectrum of a predetermined spectral range that is visible for the human eye.
- the illumination unit is configured as a single light source, which emits light in the visible infrared range and in the predetermined spectral range.
- the visible infrared range for example, at least partly comprises a red spectral portion
- the predetermined spectral range at least partly comprises a yellow spectral portion, so that, when mixing the same, the color orange is perceivable for the human eye, in particular orange according to ECE regulation 48 2.29.3, which came into force on 30 January 2011.
- the illumination unit may comprise at least one first light source and at least one second light source, wherein the at least one first light source is adapted to emit at least one first light beam in the infrared range that is visible for the human eye, and the at least one second light source is adapted to emit at least one second light beam in the predetermined spectral range that is visible for the human eye, wherein the at least one first light beam and the at least one second light beam overlap to create a mixed light beam that is perceivable by a human eye.
- the predetermined spectral range e.g. yellow
- the illumination unit may be used as automotive lighting, which emits light in a desired spectral color, e.g. orange, as defined above.
- the at least one first light beam and the at least one second light beam overlap such, that the mixed light beam comprises residual light of the at least one first light source and/or residual light of the at least one second light source.
- the residual light having infrared portion of the at least one first light source is used by the capturing unit for capturing/acquiring the image data. This enables the capturing unit to produce good images of the object also in poor illumination conditions (e.g. at night).
- the predetermined spectral range is, for example, yellow.
- a light color is defined, which is perceived as orange by the human eye.
- the illumination unit of the camera system according to the invention as a light source having red color spectrum (visible infrared range) at the side of a vehicle (e.g. as a side marker light), which is not allowed for conventional light sources having red color spectrum due to legal regulations for automotive lightings (ECE R48 installation of illumination and light-signalling devices, in particular item 5.15, side marker light; ECE R91 side marker lights, in particular item 8.1).
- mixing of the at least one first light beam and the at least one second light beam is effected by at least one optical element for generating the mixed light beam.
- the overlapping range of the two light beams may be extended and suitably defined.
- the optical element for mixing light beams is, for example, a diffusion plate, a diffusor, a collimator, a lens, a light conductor, or a combination thereof.
- the at least one IR light source and the electric functional component which is part of a functional unit of the vehicle, are spatially separated from the capturing unit so that it is ensured that no back reflections from the IR light source directly into the capturing unit occur.
- the at least one IR light source and the electric functional component which is part of a functional unit of the vehicle, are arranged spatially close to each other, e.g. on a common circuit board and/or in a common housing, so that costs are saved due to integration.
- the IR light source may be arranged on a separate circuit board in a separate housing, and the at least one electric functional component may also be arranged on a separate circuit board in a separate housing, wherein both housings may be arranged in the camera system spatially separated from the capturing unit.
- the housings may, nevertheless, be arranged on the vehicle in close proximity to each other, e.g. adjacent to each other.
- the illumination unit comprising the IR light source and the electric functional component is preferably located close to the capturing unit, in order to ensure an optimum and homogenous illumination of the capturing unit's field of view with IR light.
- the at least one IR light source and the functional component may have a common power supply, so that no additional electric power connection lines are required.
- the IR light source may, for example, use the electric power supply line of the functional unit of the vehicle, which functional unit comprises the electric functional component of the illumination unit.
- IR illumination of camera systems is usually effected in a range of approximately 850-950 nm, which is not perceivable for the human eye, as the sensitivity of the human eye lies in a range of approximately 380 to 780 nm.
- the upper range of sensitivity of the human eye begins at 680 nm and ends at approximately 780 nm, wherein the range visible for a human eye lies between 380 nm and 780 nm.
- the IR light source emits light above the wavelength range that is visible for the human eye, thus achieving an improved night vision ability of the camera system.
- the IR light source emits light in the upper range of sensitivity of the human eye, also referred to as near- infrared light, which is still perceivable by the human eye.
- the functional unit may emit light within the wavelength range that is visible for the human eye, or in the upper range of sensitivity of the human eye, thereby providing a light source having IR portion.
- Such light source having IR portion improves color rendering in good illumination conditions, when the IR light source is switched off, and, at the same time, ensures a good image in poor illumination conditions, when the IR light source is switched on.
- the IR light source may change its state according to the driving situation and environmental parameters, respectively, i.e., may be switched on, for example, only in poor light conditions.
- the wavelength of the IR light emitted by the IR light source may be changed according to the driving situation.
- the illumination area illuminated by the IR light source may be changed according to the driving situation. For example, when turning, IR light may be switched on to improve visibility in an area laterally next to the vehicle, while said IR light is not switched on when driving straight ahead, where, for example, only one IR light source is provided for illuminating the area in front of the vehicle.
- Figure 1 a schematic view of a camera system according to a first embodiment of the invention
- Figure 2 a schematic view of a functional unit of a vehicle, which uses the camera system according to the first embodiment
- Figure 3 a schematic view of a camera system according to a second embodiment of the invention.
- Figure 4 a schematic view of a camera system according to a third embodiment of the invention.
- Figure 5 a schematic view of the illumination unit shown in Figure 4.
- Figure 1 shows a camera system 1 according to a first embodiment, which comprises a capturing unit 2.
- the capturing unit 2 is, for example, a camera having an objective 3 for acquiring/capturing image data of an object (not shown) located within a field of view 4 of the capturing unit 2.
- the capturing unit 2 is, e.g. wirelessly or wired, connected to a processing unit 5 via a connection 6.
- the processing unit 5 serves for further processing the image data acquired by the capturing unit 2, in order to output the same on a display unit 7.
- the display unit 7 is a monitor for visually displaying the image data of the object captured by the capturing unit.
- the processing unit 5 is provided with further connections 8, via which connections, for example, data from a distance sensor (not shown) may be input into the processing unit 5.
- an illumination unit 9 is provided in the camera system 1 and located close to the capturing unit 2.
- the illumination unit 9 according to the first embodiment comprises an IR light source 10, whose IR light beam 11 at least partially overlaps the field of view 4 of the capturing unit 2.
- the illumination unit 9 further comprises an electric functional component 12, which is part of an already existing functional unit (not shown) of the vehicle.
- This already existing functional unit of the vehicle will be described in more detail below with reference to Fig. 2 and, according to the first embodiment, may be part of the automotive lighting like, for example, flashing light/turn-signal indicator, side marker light, headlight, rear light, ambient lamp, entry lamp, etc., a sensor like, for example, radar, ultrasound, etc., a device for radio reception like, for example, GPS antenna, toll antenna, CB radio antenna etc., and/or an operating element of the vehicle, e.g. an electric handle/knob for a door opener, an operating unit for a loading flap, a crane etc.
- the IR light source 10 and the electric functional component 12 of the illumination unit 9 are arranged spatially close to each other. Particularly, according to the first embodiment, the IR light source 10 and the electric functional component 12 are arranged in a common housing.
- the IR light source 10 and the electric functional component 12 may be provided in separate housings.
- the IR light source 10 and the electric functional component 12 are formed on a common circuit board, wherein, alternatively, the IR light source 10 and the electric functional component 12 may be formed on separate circuit boards.
- the camera system 1 further comprises a control module 13 for driving the illumination unit 9.
- this allows, for example, for changing the IR illumination by the IR light source 10 dependent on (according to) the driving situation.
- the IR light source 10 may, for example, be switched on and off dependent on (according to) the driving situation, and the wavelength of the IR light may be suitably adapted to the environmental conditions.
- control module 13 is further coupled to the processing unit 5; alternatively, however, it may be only coupled to the illumination unit 9 or the processing unit 5. Further connections between the control module 13 and any further components of the camera system 1 are also conceivable.
- the functional component 12 of the illumination unit 9 shown in Figure 1 may also be part of a functional unit of the vehicle, which emits light within the wavelength range that is visible for the human eye, additionally or alternatively to the emission of IR light by the IR light source 10.
- switching off and on the IR light source 10 and/or the functional unit may be effected by the control module 13.
- Figure 2 shows a schematic view of a camera system 1 according to Figure 1 as part of a automotive lighting 15, which is a specific example for the above-mentioned functional unit of the vehicle according to the invention.
- the automotive lighting 15 comprises a flashing light/turn-signal indicator 16, a headlight 17, and the camera system 1 according to Figure 1, which is only partially illustrated in Figure 2.
- the functional component 12 of the camera system 1 is part of the automotive lighting 15 serving as functional unit according to the invention.
- the functional component 12 of the camera system 1 is arranged on the circuit board of the automotive lighting 15 and uses the same power supply.
- the functional component 12 is arranged in the housing of the automotive lighting 15; alternatively, however, it may also be arranged in a separate housing.
- the flashing light/turn-signal indicator 16 shown in Figure 2 and/or the headlight 17 may respectively function as electric functional unit, so that the functional component 12 is part of the flashing light 16 and/or the headlight 17.
- Figure 3 shows a schematic illustration of the camera system 1 according to a second embodiment of the invention.
- the illumination unit 9 comprises a first light source 18 and a second light source 19.
- the first light source 18 emits light in the near- infrared range, i.e. infrared light, which is still perceivable by the human eye.
- the second light source 19 emits light in a spectrum having a predetermined spectral range that is visible for the human eye.
- the second light source 19 emits light having a yellow spectral portion.
- the first light source 18 covers an IR illumination range 11
- the second light source 19 covers an illumination range 20.
- the illumination range 20 illuminated by the second light source 19 is a yellow illumination range 20.
- the IR illumination range 11 and the yellow illumination range 20 overlap to form a illumination range 21, which is perceived as orange by a human observer, due to the mixing of the colors red and yellow.
- the color perceptible by a human may be correspondingly predefined in the illumination range 21.
- the illumination unit 9 according to the second embodiment may, for example, be used as side marker/limitation light of a vehicle. Due to the color mixing of the infrared light of the first light source 18 and the yellow light of the second light source 19, a side marker/limitation light may be provided, which fulfils the legal provisions for automotive lightings.
- first light source 18 and the second light source 19 are shown in a common housing in Figure 3, they may also be accommodated in separate housings. These separate housings are preferably close to each other, in order to generate an adequate common overlapping illumination range.
- FIG. 4 shows a schematic illustration of a camera system according to a third embodiment of the invention.
- the third embodiment of the invention differs from the second embodiment shown in Figure 3 in that the illumination unit 9 additionally comprises an optical element 22.
- the optical element 22 is, for example, a diffusion plate, a diffusor, a collimator, a lens, a light conductor, etc. or a combination thereof.
- the optical element 22 is, in particular, capable of mixing the infrared light emitted by the first light source 18 such with the yellow light emitted by the second light source 19 that the orange illumination range 21 is provided.
- the optical element 22 according to the third embodiment reduces the illumination ranges 11 and 20 of the first light source 18 and the second light source 19, respectively, thereby extending the desired overlapping illumination range 21.
- the desired illumination range 21 according to Fig. 4 is explained below in more detail with reference to Figure 5.
- FIG 5 shows a schematic illustration of the illumination unit 9 shown in Figure 4.
- the optical element 22 mixes an infrared light beam 23 emitted by the first light source 18 with a yellow light beam 24 emitted by the second light source 19 such that a mixed light beam 25 is created, which is perceived as orange light by a human eye 26.
- the mixed light beam 25 comprises residual light 23' from the first light source 18, as well as residual light 24' from the second light source 19.
- the residual light 23' from the first light source 18, which contains an IR portion is used by the capturing unit 2 of the camera system according to the invention to allow for capturing a good image, e.g. under poor illumination conditions (at night).
- IR light source is illustrated in the illumination unit 9
- a plurality of IR light sources of this type may be provided in the illumination unit, together with a corresponding plurality of electric functional components, which are part of a plurality of corresponding, already existing, functional units of the vehicle.
- more than one capturing unit may be provided in the camera system according to the invention.
- the above-mentioned components of the camera system may, for example, be accommodated in a common housing, or, if necessary, may be accommodated in separate housings, or arbitrarily combined in common housings.
- the illumination unit may comprise a single light source having the functions of the first and second light source.
- the yellow spectral range is mentioned as an example for the predetermined spectral range of the light emitted by the second light source 19.
- any spectral range visible for the human eye may be provided.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Signal Processing (AREA)
- Studio Devices (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112018015667A BR112018015667A2 (en) | 2015-08-14 | 2017-02-01 | camera system for a vehicle |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010510648 | 2015-08-14 | ||
EP16153855.8A EP3131279A1 (en) | 2015-08-14 | 2016-02-02 | Camera system for a vehicle |
EP16153855.8 | 2016-02-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017134121A1 true WO2017134121A1 (en) | 2017-08-10 |
Family
ID=59501647
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/052178 WO2017134121A1 (en) | 2015-08-14 | 2017-02-01 | Camera system for a vehicle |
Country Status (1)
Country | Link |
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WO (1) | WO2017134121A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10793055B1 (en) | 2019-03-25 | 2020-10-06 | Volvo Truck Corporation | Vehicle comprising a wind deflecting assembly and a lighting device |
CN111819110A (en) * | 2018-03-01 | 2020-10-23 | 克诺尔商用车制动系统有限公司 | Apparatus and method for monitoring a vehicle camera system |
CN114413228A (en) * | 2020-10-28 | 2022-04-29 | Zkw集团有限责任公司 | Lighting system for a motor vehicle for detecting the surroundings of the motor vehicle |
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---|---|---|---|---|
US20020154515A1 (en) * | 2001-04-24 | 2002-10-24 | Koito Manufacturing Co., Ltd. | Infrared irradiation lamp for automobile |
DE10230639A1 (en) * | 2002-07-08 | 2004-01-29 | Automotive Lighting Reutlingen Gmbh | IR road illumination system for road vehicle has IR headlamps in front of vehicle and IR camera on vehicle roof connected to video monitor inside vehicle |
EP1442934A1 (en) * | 2003-01-30 | 2004-08-04 | Ichikoh Industries, Ltd. | Outside mirror for vehicle |
US20040174712A1 (en) * | 2003-03-06 | 2004-09-09 | Seiichiro Yagi | Vehicular headlamp |
DE102005041065A1 (en) * | 2005-02-16 | 2006-08-24 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | lighting device |
DE102007026780A1 (en) * | 2007-06-09 | 2008-12-11 | Automotive Lighting Reutlingen Gmbh | Radiation source for active infrared night sight has arrangement for eliminating detectable red light component that superimposes visible light from at least one other light source |
-
2017
- 2017-02-01 WO PCT/EP2017/052178 patent/WO2017134121A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020154515A1 (en) * | 2001-04-24 | 2002-10-24 | Koito Manufacturing Co., Ltd. | Infrared irradiation lamp for automobile |
DE10230639A1 (en) * | 2002-07-08 | 2004-01-29 | Automotive Lighting Reutlingen Gmbh | IR road illumination system for road vehicle has IR headlamps in front of vehicle and IR camera on vehicle roof connected to video monitor inside vehicle |
EP1442934A1 (en) * | 2003-01-30 | 2004-08-04 | Ichikoh Industries, Ltd. | Outside mirror for vehicle |
US20040174712A1 (en) * | 2003-03-06 | 2004-09-09 | Seiichiro Yagi | Vehicular headlamp |
DE102005041065A1 (en) * | 2005-02-16 | 2006-08-24 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | lighting device |
DE102007026780A1 (en) * | 2007-06-09 | 2008-12-11 | Automotive Lighting Reutlingen Gmbh | Radiation source for active infrared night sight has arrangement for eliminating detectable red light component that superimposes visible light from at least one other light source |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111819110A (en) * | 2018-03-01 | 2020-10-23 | 克诺尔商用车制动系统有限公司 | Apparatus and method for monitoring a vehicle camera system |
CN111819110B (en) * | 2018-03-01 | 2023-09-26 | 克诺尔商用车制动系统有限公司 | Apparatus and method for monitoring vehicle camera system |
US10793055B1 (en) | 2019-03-25 | 2020-10-06 | Volvo Truck Corporation | Vehicle comprising a wind deflecting assembly and a lighting device |
CN114413228A (en) * | 2020-10-28 | 2022-04-29 | Zkw集团有限责任公司 | Lighting system for a motor vehicle for detecting the surroundings of the motor vehicle |
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