WO2013005933A2 - Illumination intensity sensor device for a vehicle headlight - Google Patents

Illumination intensity sensor device for a vehicle headlight Download PDF

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Publication number
WO2013005933A2
WO2013005933A2 PCT/KR2012/004928 KR2012004928W WO2013005933A2 WO 2013005933 A2 WO2013005933 A2 WO 2013005933A2 KR 2012004928 W KR2012004928 W KR 2012004928W WO 2013005933 A2 WO2013005933 A2 WO 2013005933A2
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WO
WIPO (PCT)
Prior art keywords
opening
housing
light
vehicle
disposed
Prior art date
Application number
PCT/KR2012/004928
Other languages
French (fr)
Korean (ko)
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WO2013005933A3 (en
Inventor
이준섭
Original Assignee
Lee Joon Sub
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Filing date
Publication date
Application filed by Lee Joon Sub filed Critical Lee Joon Sub
Publication of WO2013005933A2 publication Critical patent/WO2013005933A2/en
Publication of WO2013005933A3 publication Critical patent/WO2013005933A3/en

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    • 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
    • B60Q1/14—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 having dimming means
    • 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
    • B60Q1/14—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 having dimming means
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • 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
    • B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0219—Electrical interface; User interface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0418—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using attenuators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0448—Adjustable, e.g. focussing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/06—Restricting the angle of incident light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4204—Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/31—Atmospheric conditions
    • B60Q2300/314—Ambient light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J2001/0276—Protection

Definitions

  • the present application relates to an illuminance sensor device, and more particularly, to an illuminance sensor device for a vehicle headlight that can collect only the brightness of light in a specific area when driving a vehicle.
  • the vehicle headlights are turned on by the driver's operation, but the majority of vehicles are automatically flashing the headlights. This is done by attaching an illumination sensor to the vehicle and detecting the brightness around the vehicle. That is, the vehicle headlights automatically turn on the headlights when the surroundings of the vehicle are dark using light detected by the illumination sensor, and the headlights automatically turn off when the headlights are bright.
  • the illuminance sensor 10 is installed at the lower part of the windshield at the top of the crash board 50 of the vehicle, and the headlamp 30 is installed at the front of the vehicle, so that the amount of ambient light from the illuminance sensor when the vehicle is driven. After that, the headlight is turned off when the measured light quantity value is higher than the reference light quantity value, and the headlight is turned on when the measured light quantity value is lower than the reference light quantity value.
  • the direction of the illuminance sensor 10 is disposed in the upper direction of the crash board 50 to receive the light incident from the entire area.
  • the light receiving element 11 of the illuminance sensor generally faces the vertical upward direction of the vehicle, that is, the vertical direction of the vehicle progression. It will accept the light and dark around the vehicle. Specifically, light introduced from the outside passes through the light transmission cover 15 disposed on the crash board 50, and the light passed through the lens 13 converges again to the light receiving element 11. You will join.
  • the light sensor detects light incident from the entire upper part of the crash board of the vehicle, not a specific area required by the driver, for example, a tunnel that appears in front of the vehicle. Therefore, when the vehicle moves from a bright place to a dark place, such as when entering a tunnel during the actual day, the headlights are turned on only after the entrance of the tunnel is completed even if the front of the vehicle is dark due to the vehicle speed. For this reason, at the moment when the vehicle enters the tunnel, the driver may not collect visual information in front of the vehicle, thereby exposing a risk of an accident.
  • the present application is to solve the problems of the prior art as described above, by detecting only the light in a specific area, such as a dark tunnel in front, the headlights for vehicle headlights so that the headlights of the vehicle can be automatically turned on and off in advance
  • the object is to provide a sensor device.
  • An illumination sensor device for a vehicle headlight may include: a housing disposed on one surface of a vehicle body and having an opening opened in front of the vehicle body; And a light receiving sensor installed in the housing to receive the light flowing into the opening of the housing.
  • An illuminance sensor device includes an optical structure accommodated in an opening of the housing and disposed above the light receiving sensor and transmitting light from the opening; And a blocking member disposed between the optical structure and the light receiving sensor and having an opening smaller than the opening of the housing to reduce an incident angle of light flowing from the opening of the housing.
  • the diameter of the opening of the blocking member is adjustable.
  • the illuminance sensor device may further include a cover member covering and protecting the light receiving sensor, and the cover member may be a light transmissive material.
  • the optical structure may be a convex lens for converging the light.
  • the illumination sensor device includes an optical structure that is accommodated in an opening of the housing and disposed above the light receiving sensor, and transmits light flowing from the opening, and an upper end of the housing that defines the opening is formed at one end of the light receiving sensor. It is disposed at a position higher than the upper end of the optical structure as a reference.
  • the housing includes a base portion disposed in parallel with the optical structure and a protrusion extending from the base portion, the protrusion defining an opening of the housing.
  • the illumination sensor device for a vehicle headlight automatically lights up the vehicle headlight in advance even in a dark structure in front of a vehicle such as a tunnel, thereby enabling the driver to prevent a danger caused by sudden dark field of view.
  • FIG. 1 is a view schematically showing an illuminance sensor attached to a conventional vehicle.
  • FIG. 2 is a view showing in detail the structure of the illumination sensor attached to a conventional vehicle.
  • FIG 3 is an embodiment of the present invention, a view for explaining the structure of the illumination sensor device disposed in a vehicle.
  • Figure 4 is an embodiment of the present invention, a cross-sectional view for explaining the structure of the vehicle headlight illumination sensor device.
  • FIG. 5 is an embodiment of the present invention, a view for explaining the structure and operation method of the blocking member.
  • FIG. 6 is a cross-sectional view for describing a structure of an illuminance sensor device for a vehicle headlight according to another exemplary embodiment of the present disclosure.
  • FIG. 7 is a view for explaining a process of operating the illuminance sensor device of the present invention mounted on the vehicle.
  • FIG 3 is an embodiment of the present invention, a view for explaining the structure of the illumination sensor device disposed in a vehicle.
  • the illumination sensor device 100 is disposed on one surface of the vehicle 300, in this case, the illumination sensor direction is disposed to face the front of the vehicle.
  • one surface of the vehicle may be one surface of the crash board of the vehicle, but the illumination sensor device 100 may be disposed anywhere if it can be disposed toward the front of the vehicle.
  • the opening of the housing (not shown) is disposed to face the front of the vehicle so that light from the front of the vehicle, rather than the top of the vehicle, may be introduced.
  • a light receiving sensor (not shown) is disposed in the housing and detects light introduced into the opening.
  • the brightness of the light in front of the vehicle may be detected in advance before the vehicle enters a place where the field of view such as a tunnel suddenly darkens, thereby controlling the headlight of the vehicle. Allow the driver to drive safely.
  • the illumination sensor device is generally sufficient to be disposed on one side of the vehicle to face the front of the vehicle, but it is possible to change the illumination sensor device so as to sense only the light in a substantially required area by reducing the angle of incident light.
  • 4 and 6 are embodiments of the illumination sensor device.
  • Figure 4 is an embodiment of the present invention, a cross-sectional view for explaining the structure of the vehicle headlight illumination sensor device.
  • the illumination sensor device 100 includes a housing 110, an optical structure 120, a blocking member 130, a cover member 140, and a light receiving sensor 150.
  • the housing 110 forming the overall shape of the illuminance sensor device includes an opening G1 such that external light is incident therein, and the opening G1 mainly forms a circular shape. It is possible.
  • the opening G1 of the housing 110 is covered with an auxiliary optical structure 125 through which light is transmitted.
  • the auxiliary optical structure 125 is an optical structure in which light is scattered or diffused in the auxiliary optical structure 125 and disposed in the opening G1 of the housing when external light is incident into the opening G1 of the housing. It may have a roughness on the surface to be totally incident on the (120). In addition, the auxiliary optical structure 125 may have a lens shape of convex shape toward the front side of the opening of the housing. The auxiliary optical structure 125 protects the optical structure 120 installed therein from external impact or foreign matter.
  • auxiliary optical structure 125 may be screwed into the housing and coupled to the housing by an adhesive such as a silicone resin.
  • the optical structure 120 is received in the opening G1 of the housing 110, where the optical structure 120 is supported by the opening side end of the housing as shown.
  • the optical structure 120 may be any structure that can transmit the light flowing from the opening G1, and preferably, the optical structure 120 may be a convex lens that can converge light to one surface of the light receiving sensor 150. have.
  • the focal point where the light is converged by the convex lens is preferably disposed on the light receiving sensor 150 and the optical structure 120 to be located on one surface of the light receiving sensor 150.
  • the light receiving sensor 150 is disposed on the printed circuit board 160 disposed in the housing 110 to receive the light flowing from the opening G1 of the housing 110.
  • the light receiving sensor 150 may use an optical sensor such as a photodiode that converts light energy into electrical energy when received.
  • the cover member 140 is disposed above the light receiving sensor 150 to surround and protect the light receiving sensor 150, and the cover member 140 is made of a transparent light transmissive material. The cover member 140 is to compensate for the vulnerability caused by the external light receiving sensor 150.
  • the light receiving sensor 150 mounted on the vehicle is impacted by the curvature or obstacle of the road surface while driving, and thus the extinction sensor is separated from the printed circuit board or separated from the printed circuit board or at an appropriate angle away from the original position of the extinction sensor. This is because the light incident from the outside may not be recognized.
  • the blocking member 130 is an opaque material and is disposed between the optical structure 120 and the light receiving sensor 150 and supported by the support 131 installed on the printed circuit board.
  • the support 131 may be the same as the material of the cover member 140, and the support 131 may be formed together with the cover member 140 to form an integrated body.
  • the blocking member 130 may be supported by a member extending from the housing 110.
  • the structure of the support can be manufactured in various forms, and any structure can be applied as long as the structure can support the blocking member mechanically.
  • the opening G2 of the blocking member 130 has an opening diameter smaller than that of the opening G1 of the housing 110 so that an incident angle of light flowing from the opening G1 of the housing 110 is reduced.
  • the blocking member 130 may adjust the diameter of the opening (G2). That is, as shown in FIG. 5, the blocking member 130 is a ring-shaped structure 130a having an open center, and a lever 130b is provided at one side thereof.
  • the diameter of the opening portion G2 of the blocking member 130 is reduced or increased as the lever 130b rotates in one direction. That is, the lever 130b is rotated in a direction of reducing the diameter of the opening G2 of the blocking member 130 so as to reduce the incident angle of light incident from the outside to recognize the intensity or the total amount of light only in a specific region. On the contrary, when the angle of incidence of light is to be widened, the lever 130b is rotated in the opposite direction to be adjusted.
  • the illuminance sensor device having such a structure is disposed in a crash board or other structure formed on the front of the vehicle, wherein the illuminance sensor device is disposed so that the opening of the housing faces the front of the vehicle. Therefore, only light coming from a specific area such as a tunnel in front of the vehicle can be detected.
  • FIG. 6 is a cross-sectional view for describing a structure of an illuminance sensor device for a vehicle headlight according to another exemplary embodiment of the present disclosure.
  • the illuminance sensor device is similar to the structure of FIG. 4. Therefore, in the case of the same component, a description thereof will be omitted, and the difference between the components of FIG. 4 will be described.
  • the optical structure 120 is disposed inside the housing 110 so that light flowing from the opening G1 of the housing 110 is transmitted, and may be a convex lens as in the embodiment of FIG. 4.
  • the upper end of the optical structure 120 is disposed at a position lower than the upper end of at least the portion that partitions the opening G1 of the housing 110. This is to sense only the light corresponding to the required area when the light flowing from the outside is incident on the optical structure.
  • the housing 110 includes a base portion 111 disposed substantially parallel to the optical structure 120 and a protrusion 113 extending in a vertical direction from one surface of the base portion 111.
  • the protrusion 113 partitions the opening G1 of the housing 110 and substantially reduces an incident angle of light incident to the opening G1 of the housing 110. That is, the protrusion 113 allows the light receiving sensor 150 disposed inside the housing to detect light coming from a specific area.
  • the light transmitting membrane 170 may be installed in the upper portion of the opening G1 of the housing 110 to prevent foreign substances from flowing in from the outside.
  • the illumination sensor device for a vehicle headlight of the present invention includes a housing, a light receiving sensor for receiving light by improving a structure of a part of a vehicle, for example, a crash board, to receive light flowing from the front of the vehicle. It can be placed inside the crash board without a housing. That is, an opening is formed on one surface of the vehicle body, the opening is disposed to face the front of the vehicle, and a light receiving sensor may be attached to the inside of the opening.
  • FIG. 7 is a view for explaining a process of operating the illuminance sensor device of the present invention mounted on the vehicle.
  • the illumination sensor device is disposed on one surface of the vehicle so that the opening G1 of the housing 110 is disposed in front of the vehicle body 300, and when the tunnel comes out in front of the vehicle, the illumination sensor device is as described above. It detects light coming from a specific area in front of the tunnel. That is, the light receiving sensor 150 of the illuminance sensor device detects the brightness of the light coming from the tunnel, and the detected light brightness is converted into a voltage value and transmitted to the BCM controller 210.
  • the BCM controller 210 is less than or equal to the reference value of the preset vehicle headlight 250, the headlamp 250 is turned on under the control of the relay 230, and when the BCM controller 210 is greater than or equal to the reference value, the headlamp 250 is turned off.
  • the headlights may be turned on by sensing the brightness of the tunnel light before entering the tunnel, thereby preventing the danger of sudden darkening of the front view.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Human Computer Interaction (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

Embodiments of the present invention relate to an illumination intensity sensor device for a vehicle headlight, comprising: a housing which is arranged on one surface of a car body, and which has an open portion open to the front of the car body; and a light-collecting sensor installed in the housing in order to collect light entering through the open portion of the housing.

Description

차량 전조등용 조도센서 장치Ambient light sensor device for vehicle headlight
본 출원은 조도센서 장치에 관한 것으로, 더욱 상세하게는 자동차 주행시 특정 영역의 빛의 밝기만 수집할 수 있는 차량 전조등용 조도센서 장치에 관한 것이다.The present application relates to an illuminance sensor device, and more particularly, to an illuminance sensor device for a vehicle headlight that can collect only the brightness of light in a specific area when driving a vehicle.
일반적으로 차량 전조등은 운전자의 조작에 의하여 점등이 이루어지지만, 자동으로 전조등이 점멸되는 차량들이 대다수다. 이는 조도 센서를 차량에 부착하여 차량 주변의 밝기를 탐지하는 것에 의하여 이루어진다. 즉, 차량 전조등은 조도 센서에 감지되는 빛을 이용하여 차량 주변이 어두우면 자동으로 전조등이 점등되고, 밝으면 자동으로 전조등이 소등된다.In general, the vehicle headlights are turned on by the driver's operation, but the majority of vehicles are automatically flashing the headlights. This is done by attaching an illumination sensor to the vehicle and detecting the brightness around the vehicle. That is, the vehicle headlights automatically turn on the headlights when the surroundings of the vehicle are dark using light detected by the illumination sensor, and the headlights automatically turn off when the headlights are bright.
그 일례로, 도 1에서와 같이 조도 센서(10)는 차량의 크래쉬보드(50) 상단의 앞유리 밑 부분에 설치되고 전조등(30)은 차량의 앞쪽에 설치되어 차량 주행시 조도센서에서 주변의 광량을 측정하고, 이후, 측정된 광량 값이 기준이 되는 광량 값보다 높을 경우엔 전조등이 소등되고, 측정된 광량 값이 기준이 되는 광량 값보다 낮을 경우엔 전조등은 점등된다. For example, as shown in FIG. 1, the illuminance sensor 10 is installed at the lower part of the windshield at the top of the crash board 50 of the vehicle, and the headlamp 30 is installed at the front of the vehicle, so that the amount of ambient light from the illuminance sensor when the vehicle is driven. After that, the headlight is turned off when the measured light quantity value is higher than the reference light quantity value, and the headlight is turned on when the measured light quantity value is lower than the reference light quantity value.
이때, 조도센서(10)의 방향은 크래쉬보드(50) 상부 방향으로 배치되어 주변 전체의 영역에서 입사되는 빛을 받아들이게 된다. 조도 센서의 수광 소자(11)는 도 2에 도시 되는 것과 같이 일반적으로는 차량의 수직 상향, 즉 차량 진행의 수직 방향을 향하고 있어서, 차량 진행의 수직 상향을 중심으로 상당히 넓은 영역에서 입사되는 빛을 받아들여서 차량 주변의 밝고, 어두움을 인식하게 된다. 구체적으론, 외부에서 유입된 빛이 크래쉬보드(50)의 상부에 배치된 광투과 커버(15)를 통과하고, 통과된 빛은 다시 렌즈(13)를 통하여 빛이 수렴되어 수광소자(11)에 입사하게 된다.At this time, the direction of the illuminance sensor 10 is disposed in the upper direction of the crash board 50 to receive the light incident from the entire area. As shown in FIG. 2, the light receiving element 11 of the illuminance sensor generally faces the vertical upward direction of the vehicle, that is, the vertical direction of the vehicle progression. It will accept the light and dark around the vehicle. Specifically, light introduced from the outside passes through the light transmission cover 15 disposed on the crash board 50, and the light passed through the lens 13 converges again to the light receiving element 11. You will join.
한편, 차량 전조등용 조도센서와 관련하여 종래 선행특허(대한민국 출원번호 10-2007-0129507)를 살펴보면, 상기 도 2와 같은 유사한 구조를 갖고, 렌즈를 통한 광의 세기를 달리하도록 상기 광투과 커버가 수광소자에 대해 거리 조절이 가능하도록 한다. 이에 따라 결과적으로 " 전조등의 자동 점등 및 소등 시점을 직접 조정 가능 하도록 한다." 라고 나타나 있다. On the other hand, when looking at the conventional prior patent (Korean Patent Application No. 10-2007-0129507) with respect to the illumination sensor for the vehicle headlights, having a similar structure as shown in FIG. Allow distance adjustment to the device. As a result, it is possible to directly adjust the timing of automatic lighting and turning off the headlight. It is shown.
그러나 이와 같은 구성의 조도 센서는 전조등의 점등 시기를 조정한다 하더라도 운전자가 필요로 하는 특정영역, 예를 들어, 전방에 나타나는 터널과 같은 특정영역이 아닌 자동차의 크래쉬보드 상부 전체에서 입사되는 빛을 감지하기 때문에, 실제 주간에 터널을 진입하는 경우와 같이 밝은 곳에서 어두운 곳으로 차량이 이동하는 경우에 차량 속도로 인해 차량의 전방이 어두움에도 터널 진입이 완료된 후에야 전조등이 점등된다. 이 때문에 차량의 터널 진입 순간에는 운전자가 전방의 시각 정보를 수집하지 못하여 사고의 위험에 노출되는 문제점이 있다.However, even when the headlight sensor is adjusted when the headlights are turned on, the light sensor detects light incident from the entire upper part of the crash board of the vehicle, not a specific area required by the driver, for example, a tunnel that appears in front of the vehicle. Therefore, when the vehicle moves from a bright place to a dark place, such as when entering a tunnel during the actual day, the headlights are turned on only after the entrance of the tunnel is completed even if the front of the vehicle is dark due to the vehicle speed. For this reason, at the moment when the vehicle enters the tunnel, the driver may not collect visual information in front of the vehicle, thereby exposing a risk of an accident.
본 출원은 상기한 바와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 전방의 어두운 터널과 같은 특정영역에의 빛만을 감지하여, 미리 차량의 전조등이 자동 점등 및 소등할 수 있도록 하기 위한 차량 전조등용 조도센서 장치를 제공하는데 그 목적이 있다.The present application is to solve the problems of the prior art as described above, by detecting only the light in a specific area, such as a dark tunnel in front, the headlights for vehicle headlights so that the headlights of the vehicle can be automatically turned on and off in advance The object is to provide a sensor device.
일 실시예에 따른 차량 전조등용 조도센서 장치는 차체의 일면에 배치되고, 상기 차체의 전방으로 개구된 개구부를 갖는 하우징; 상기 하우징의 개구부로 유입되는 빛을 수광하도록 상기 하우징 내에 설치되는 수광센서를 포함한다.An illumination sensor device for a vehicle headlight according to an embodiment may include: a housing disposed on one surface of a vehicle body and having an opening opened in front of the vehicle body; And a light receiving sensor installed in the housing to receive the light flowing into the opening of the housing.
조도센서 장치는 상기 하우징의 개구부 내에 수용되어 상기 수광센서 상부에 배치되고, 상기 개구부로부터 유입되는 빛을 투과시키는 광학 구조물; 및 상기 광학 구조물과 상기 수광센서 사이에 배치되어 상기 하우징의 개구부로부터 유입되는 빛의 입사각을 줄이기 위해 상기 하우징의 개구부보다 작은 개구부를 갖는 차단부재를 포함할 수 있다.An illuminance sensor device includes an optical structure accommodated in an opening of the housing and disposed above the light receiving sensor and transmitting light from the opening; And a blocking member disposed between the optical structure and the light receiving sensor and having an opening smaller than the opening of the housing to reduce an incident angle of light flowing from the opening of the housing.
상기 차단 부재의 개구부의 직경은 조절 가능하다.The diameter of the opening of the blocking member is adjustable.
조도센서 장치는 상기 수광센서를 감싸 보호하는 커버부재를 더 포함하고, 상기 커버부재는 광 투과성 재질일 수 있다.The illuminance sensor device may further include a cover member covering and protecting the light receiving sensor, and the cover member may be a light transmissive material.
상기 광학 구조물은 상기 빛을 수렴시키기 위한 볼록렌즈일 수 있다.The optical structure may be a convex lens for converging the light.
조도센서 장치는 상기 하우징의 개구부 내에 수용되어 상기 수광센서 상부에 배치되고, 상기 개구부로부터 유입되는 빛을 투과시키는 광학 구조물를 포함하고, 상기 개구부를 구획하는 상기 하우징의 상단은 상기 수광센서의 일단면을 기준으로 하여 상기 광학 구조물의 상단 보다 높은 위치에 배치된다.The illumination sensor device includes an optical structure that is accommodated in an opening of the housing and disposed above the light receiving sensor, and transmits light flowing from the opening, and an upper end of the housing that defines the opening is formed at one end of the light receiving sensor. It is disposed at a position higher than the upper end of the optical structure as a reference.
상기 하우징은 상기 광학 구조물과 평행하게 배치된 베이스부와 상기 베이스부로부터 연장되어 돌출된 돌출부를 포함하고, 상기 돌출부는 상기 하우징의 개구부를 구획한다.The housing includes a base portion disposed in parallel with the optical structure and a protrusion extending from the base portion, the protrusion defining an opening of the housing.
실시예에 따른 차량 전조등용 조도센서 장치는 터널과 같은 차량 전방의 어두운 구조물에서도 미리 자동적으로 차량 전조등이 점등되어 운전자로 하여금 갑작스런 시야의 어두움에 따른 위험을 방지할 수 있게 해준다.The illumination sensor device for a vehicle headlight according to the embodiment automatically lights up the vehicle headlight in advance even in a dark structure in front of a vehicle such as a tunnel, thereby enabling the driver to prevent a danger caused by sudden dark field of view.
도 1은 종래 차량에 부착된 조도센서를 개략적으로 나타낸 도이다.1 is a view schematically showing an illuminance sensor attached to a conventional vehicle.
도 2는 종래 차량에 부착된 조도센서의 구조를 구체적으로 나타낸 도이다.2 is a view showing in detail the structure of the illumination sensor attached to a conventional vehicle.
도 3은 본 발명의 실시예로, 차량에 배치된 조도센서 장치구조를 설명하기 위한 도이다.3 is an embodiment of the present invention, a view for explaining the structure of the illumination sensor device disposed in a vehicle.
도 4는 본 발명의 실시예로, 차량 전조등용 조도센서 장치 구조를 설명하기 위한 단면도이다.Figure 4 is an embodiment of the present invention, a cross-sectional view for explaining the structure of the vehicle headlight illumination sensor device.
도 5는 본 발명의 실시예로, 차단 부재의 구조 및 동작방법을 설명하기 위한 도이다.5 is an embodiment of the present invention, a view for explaining the structure and operation method of the blocking member.
도 6은 본 발명의 다른 실시예로, 차량 전조등용 조도센서 장치 구조를 설명하기 위한 단면도이다.FIG. 6 is a cross-sectional view for describing a structure of an illuminance sensor device for a vehicle headlight according to another exemplary embodiment of the present disclosure.
도 7은 본 발명의 조도센서 장치가 차량에 장착되어 동작되는 과정을 설명하기 위한 도이다.7 is a view for explaining a process of operating the illuminance sensor device of the present invention mounted on the vehicle.
이하 본 발명의 실시예에 대하여 첨부한 도면을 참조하여 상세하게 설명하기로 한다. 다만, 첨부된 도면은 본 발명의 내용을 보다 쉽게 개시하기 위하여 설명되는 것일 뿐, 본 발명의 범위가 첨부된 도면의 범위로 한정되는 것이 아님은 이 기술분야의 통상의 지식을 가진 자라면 용이하게 알 수 있을 것이다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, but the scope of the present invention is not limited to the scope of the accompanying drawings that will be readily available to those of ordinary skill in the art. You will know.
도 3은 본 발명의 실시예로, 차량에 배치된 조도센서 장치구조를 설명하기 위한 도이다.3 is an embodiment of the present invention, a view for explaining the structure of the illumination sensor device disposed in a vehicle.
도 3을 살펴보면, 조도센서 장치(100)는 차량(300)의 일면에 배치되고, 이때, 조도센서 방향은 차량의 전방을 향하도록 배치된다. 일반적으로 차량의 일면은 차량의 크래쉬보드 일면이 되겠지만, 차량 전방을 향하여 배치될 수 있다면 어느 곳이든 조도센서 장치(100)가 배치될 수 있다. 구체적으론, 자동차의 상부가 아닌 자동차 전방의 빛이 유입될 수 있도록 하우징(미도시)의 개구부가 차량 전방을 향하도록 배치된다. 수광 센서(미도시)는 하우징 내에 배치되어 개구부에 유입된 빛을 감지한다.Referring to Figure 3, the illumination sensor device 100 is disposed on one surface of the vehicle 300, in this case, the illumination sensor direction is disposed to face the front of the vehicle. Generally, one surface of the vehicle may be one surface of the crash board of the vehicle, but the illumination sensor device 100 may be disposed anywhere if it can be disposed toward the front of the vehicle. Specifically, the opening of the housing (not shown) is disposed to face the front of the vehicle so that light from the front of the vehicle, rather than the top of the vehicle, may be introduced. A light receiving sensor (not shown) is disposed in the housing and detects light introduced into the opening.
이와 같이, 조도센서 장치가 차량의 전방을 향하여 배치되면, 터널과 같은 시야가 갑자기 어두어지는 곳으로의 차량 진입 전에 미리 전방의 빛의 밝기를 감지하고, 이에 따라 차량의 전조등을 제어할 수 있으므로, 운전자가 안전하게 운행할 수 있도록 한다.As such, when the illumination sensor device is disposed toward the front of the vehicle, the brightness of the light in front of the vehicle may be detected in advance before the vehicle enters a place where the field of view such as a tunnel suddenly darkens, thereby controlling the headlight of the vehicle. Allow the driver to drive safely.
한편, 조도센서 장치는 일반적으로 차량 전방을 향하도록 자동차 일면에 배치되면 충분하지만, 입사되는 빛의 각을 줄여 실질적으로 필요로 한 영역의 빛만을 감지하기 위해 상기 조도센서 장치를 변경할 수 있다. 다음 도 4 및 도 6은 조도센서 장치의 일 실시예들이다. On the other hand, the illumination sensor device is generally sufficient to be disposed on one side of the vehicle to face the front of the vehicle, but it is possible to change the illumination sensor device so as to sense only the light in a substantially required area by reducing the angle of incident light. 4 and 6 are embodiments of the illumination sensor device.
도 4는 본 발명의 실시예로, 차량 전조등용 조도센서 장치 구조를 설명하기 위한 단면도이다.Figure 4 is an embodiment of the present invention, a cross-sectional view for explaining the structure of the vehicle headlight illumination sensor device.
도시된 바와 같이, 조도센서 장치(100)는 하우징(110), 광학 구조물(120), 차단 부재(130), 커버부재(140) 및 수광센서(150)를 포함한다.As shown, the illumination sensor device 100 includes a housing 110, an optical structure 120, a blocking member 130, a cover member 140, and a light receiving sensor 150.
조도센서 장치 전체 외형을 형성하는 하우징(110)은 외부의 빛이 내부로 입사되도록 개구부(G1)를 포함하고, 상기 개구부(G1)는 주로 원형을 이루겠지만 그 이외에 빛이 입사되기 위한 어떤 모양이든 가능하다. 상기 하우징(110)의 개구부(G1)는 빛이 투과되는 보조광학 구조물(125)이 덮혀진다.The housing 110 forming the overall shape of the illuminance sensor device includes an opening G1 such that external light is incident therein, and the opening G1 mainly forms a circular shape. It is possible. The opening G1 of the housing 110 is covered with an auxiliary optical structure 125 through which light is transmitted.
상기 보조광학 구조물(125)은 외부의 빛이 상기 하우징의 개구부(G1) 안으로 입사될 때, 상기 보조광학 구조물(125)에서 빛이 산란 혹은 확산되어 상기 하우징의 개구부(G1)내에 배치된 광학 구조물(120)에 전체적으로 입사되도록 표면에 거칠기를 가질 수 있다. 또한, 보조광학 구조물(125)은 상기 하우징의 개구부 전면 방향으로 볼록한 형태의 렌즈 형상을 가질 수 있다. 이러한 보조광학 구조물(125)은 내부에 설치되는 광학 구조물(120)을 외부의 충격이나 이물질로부터 보호한다.The auxiliary optical structure 125 is an optical structure in which light is scattered or diffused in the auxiliary optical structure 125 and disposed in the opening G1 of the housing when external light is incident into the opening G1 of the housing. It may have a roughness on the surface to be totally incident on the (120). In addition, the auxiliary optical structure 125 may have a lens shape of convex shape toward the front side of the opening of the housing. The auxiliary optical structure 125 protects the optical structure 120 installed therein from external impact or foreign matter.
상기 보조광학 구조물(125)은 도면에 도시되어 있지 않았지만, 하우징과 스크류 체결될 수 있고, 실리콘 수지와 같은 접착제에 의해 상기 하우징과 결합될 수 있다.Although not shown in the drawings, the auxiliary optical structure 125 may be screwed into the housing and coupled to the housing by an adhesive such as a silicone resin.
광학 구조물(120)은 하우징(110)의 개구부(G1)내에 수용되며, 이때, 광학 구조물(120)은 도시된 바와 같이 하우징의 개구부 측단부에 의해 지지된다. 광학 구조물(120)은 상기 개구부(G1)로부터 유입되는 빛을 전달시킬 수 있는 구조물이면 어느 것이든 가능하고, 바람직하게는 빛을 상기 수광센서(150) 일면에 수렴 시킬 수 있는 볼록렌즈가 될 수 있다. 또한, 볼록 렌즈에 의해 빛이 수렴되는 초점은 수광센서(150)의 일면에 위치할 수 있도록 수광센서(150)와 광학 구조물(120)의 배치됨이 바람직하다.The optical structure 120 is received in the opening G1 of the housing 110, where the optical structure 120 is supported by the opening side end of the housing as shown. The optical structure 120 may be any structure that can transmit the light flowing from the opening G1, and preferably, the optical structure 120 may be a convex lens that can converge light to one surface of the light receiving sensor 150. have. In addition, the focal point where the light is converged by the convex lens is preferably disposed on the light receiving sensor 150 and the optical structure 120 to be located on one surface of the light receiving sensor 150.
수광센서(150)는 상기 하우징(110) 내에 배치된 인쇄회로기판(160) 상에 배치되어, 상기 하우징(110)의 개구부(G1)로부터 유입되는 빛을 수광한다. 수광센서(150)는 일례로, 광 에너지를 받으면 전기 에너지로 변환하는 포토 다이오드와 같은 광 센서가 이용될 수 있다.The light receiving sensor 150 is disposed on the printed circuit board 160 disposed in the housing 110 to receive the light flowing from the opening G1 of the housing 110. For example, the light receiving sensor 150 may use an optical sensor such as a photodiode that converts light energy into electrical energy when received.
커버부재(140)는 상기 수광센서(150)를 감싸 보호하도록 상기 수광센서(150) 상부에 배치되고, 커버부재(140)의 재질은 투명한 광 투과성 재질이 이용된다. 이러한 커버부재(140)는 상기 수광센서(150)가 외부충격에 의한 취약성을 보완하기 위함이다.The cover member 140 is disposed above the light receiving sensor 150 to surround and protect the light receiving sensor 150, and the cover member 140 is made of a transparent light transmissive material. The cover member 140 is to compensate for the vulnerability caused by the external light receiving sensor 150.
즉, 차량에 장착되는 수광센서(150)는 주행 중 도로면의 굴곡이나 장애물에 의해 충격을 받고, 이에 따라 소광센서는 인쇄회로기판에서 이탈되어 분리되거나 상기 소광센서 원래의 위치에서 벗어나 적절한 각도로 외부에서 입사된 빛을 인식하지 못할 수 있기 때문이다.That is, the light receiving sensor 150 mounted on the vehicle is impacted by the curvature or obstacle of the road surface while driving, and thus the extinction sensor is separated from the printed circuit board or separated from the printed circuit board or at an appropriate angle away from the original position of the extinction sensor. This is because the light incident from the outside may not be recognized.
차단 부재(130)는 불투명재질로, 상기 광학 구조물(120)과 수광센서(150) 사이에 배치되고, 인쇄회로 기판 상에 설치된 지지대(131)에 의해 지지된다. 지지대(131)는 상기 커버부재(140)의 재질과 동일할 수 있고, 이 때 지지대(131)는 상기 커버부재(140)와 함께 성형되어 일체형을 이룰 수 있다. 또한, 차단 부재(130)는 도면에 도시되어 있지 않지만, 상기 하우징(110)으로부터 연장된 부재에 의해 지지될 수 있다. The blocking member 130 is an opaque material and is disposed between the optical structure 120 and the light receiving sensor 150 and supported by the support 131 installed on the printed circuit board. The support 131 may be the same as the material of the cover member 140, and the support 131 may be formed together with the cover member 140 to form an integrated body. In addition, although not shown in the drawings, the blocking member 130 may be supported by a member extending from the housing 110.
지지대의 구조는 다양한 형태로 제작이 가능하고, 상기 차단부재를 기구적으로 지지할 수 있는 구조이면 어느 것이든 적용 가능하다.The structure of the support can be manufactured in various forms, and any structure can be applied as long as the structure can support the blocking member mechanically.
한편, 차단 부재(130)의 개구부(G2)는 상기 하우징(110)의 개구부(G1)로부터 유입되는 빛의 입사각이 줄어들도록 상기 하우징(110)의 개구부(G1)보다 작은 개구경을 갖는다. 또한, 차단 부재(130)는 개구부(G2)의 직경이 조절될 수 있다. 즉, 도 5와 같이, 차단 부재(130)는 중앙이 개구된 링 형상의 구조체(130a)로 일측에 레버(130b)가 설치된다.Meanwhile, the opening G2 of the blocking member 130 has an opening diameter smaller than that of the opening G1 of the housing 110 so that an incident angle of light flowing from the opening G1 of the housing 110 is reduced. In addition, the blocking member 130 may adjust the diameter of the opening (G2). That is, as shown in FIG. 5, the blocking member 130 is a ring-shaped structure 130a having an open center, and a lever 130b is provided at one side thereof.
차단부재(130)의 개구부(G2)의 직경은 상기 레버(130b)의 일방향으로의 회전에 따라 줄어들거나 커지게 된다. 즉, 외부로부터 입사되는 빛의 입사각을 줄여 특정영역만의 빛의 세기 혹은 전체 광량을 인식하기 위해서는 차단부재(130)의 개구부(G2)의 직경을 줄이는 방향으로 상기 레버(130b)를 회전하고, 반대로 빛의 입사각을 넓히고자 할 경우엔 상기 레버(130b)를 반대방향으로 회전하여 조절한다.The diameter of the opening portion G2 of the blocking member 130 is reduced or increased as the lever 130b rotates in one direction. That is, the lever 130b is rotated in a direction of reducing the diameter of the opening G2 of the blocking member 130 so as to reduce the incident angle of light incident from the outside to recognize the intensity or the total amount of light only in a specific region. On the contrary, when the angle of incidence of light is to be widened, the lever 130b is rotated in the opposite direction to be adjusted.
이와 같은 구조를 갖는 조도센서 장치는 차량의 전면에 형성된 크래쉬보드나 기타 구조물에 배치되는데, 이때 조도센서 장치는 하우징의 개구부가 차량 전방을 향하도록 배치된다. 따라서, 차량 전방의 터널과 같은 특정 영역으로부터 오는 빛만을 감지할 수 있다.The illuminance sensor device having such a structure is disposed in a crash board or other structure formed on the front of the vehicle, wherein the illuminance sensor device is disposed so that the opening of the housing faces the front of the vehicle. Therefore, only light coming from a specific area such as a tunnel in front of the vehicle can be detected.
도 6은 본 발명의 다른 실시예로, 차량 전조등용 조도센서 장치 구조를 설명하기 위한 단면도이다.FIG. 6 is a cross-sectional view for describing a structure of an illuminance sensor device for a vehicle headlight according to another exemplary embodiment of the present disclosure.
도 6을 참조하면, 조도센서 장치는 도 4의 구조와 유사한다. 따라서, 동일한 구성요소인 경우, 이에 대한 설명은 생략하기로 하고, 도 4의 구성요소의 차이점에 대해서 설명하기로 한다.Referring to FIG. 6, the illuminance sensor device is similar to the structure of FIG. 4. Therefore, in the case of the same component, a description thereof will be omitted, and the difference between the components of FIG. 4 will be described.
광학 구조물(120)은 상기 하우징(110)의 개구부(G1)로부터 유입되는 빛이 투과되도록 상기 하우징(110)의 내부에 배치되고, 도 4의 실시예와 같이 볼록렌즈일 수 있다. 이때, 광학 구조물(120)의 상단은 적어도 상기 하우징(110)의 개구부(G1)를 구획하는 부분의 상단보다 낮은 위치에 배치된다. 이는 외부에서 유입되는 빛이 상기 광학 구조물에 입사할 때, 필요로하는 영역에 해당하는 빛만을 감지하도록 하기 위함이다.The optical structure 120 is disposed inside the housing 110 so that light flowing from the opening G1 of the housing 110 is transmitted, and may be a convex lens as in the embodiment of FIG. 4. In this case, the upper end of the optical structure 120 is disposed at a position lower than the upper end of at least the portion that partitions the opening G1 of the housing 110. This is to sense only the light corresponding to the required area when the light flowing from the outside is incident on the optical structure.
하우징(110)은 상기 광학 구조물(120)과 실질적으로 평행하게 배치된 베이스부(111)와 상기 베이스부(111)의 일면으로부터 수직방향으로 연장된 돌출부(113)를 포함한다. 돌출부(113)는 하우징(110)의 개구부(G1)를 구획하고, 실질적으로 하우징(110)의 개구부(G1)로 입사되는 빛의 입사각을 줄여준다. 즉, 돌출부(113)는 하우징 내부에 배치된 수광센서(150)가 특정영역으로부터 오는 빛을 감지할 수 있도록 한다. The housing 110 includes a base portion 111 disposed substantially parallel to the optical structure 120 and a protrusion 113 extending in a vertical direction from one surface of the base portion 111. The protrusion 113 partitions the opening G1 of the housing 110 and substantially reduces an incident angle of light incident to the opening G1 of the housing 110. That is, the protrusion 113 allows the light receiving sensor 150 disposed inside the housing to detect light coming from a specific area.
하우징(110)의 개구부(G1) 상부엔 외부로부터 이물질이 유입되는 것을 방지하기 위하여 광투과 막(170)이 설치될 수 있다. The light transmitting membrane 170 may be installed in the upper portion of the opening G1 of the housing 110 to prevent foreign substances from flowing in from the outside.
한편, 본 발명의 차량 전조등용 조도센서 장치는 하우징을 포함하고 있지만, 자동차의 일부, 예를 들어 크래쉬 보드 등의 구조를 개선하여 빛을 수광하는 수광센서는 차량의 전방에서 유입되는 빛을 수광 하도록 하우징 없이 크래쉬 보드의 내측에 배치될 수 있다. 즉, 차체의 일면에 개구부가 형성되고, 상기 개구부는 자동차의 전방을 향하도록 배치되며, 개구부의 내부에 수광센서가 부착될 수 있다. On the other hand, although the illumination sensor device for a vehicle headlight of the present invention includes a housing, a light receiving sensor for receiving light by improving a structure of a part of a vehicle, for example, a crash board, to receive light flowing from the front of the vehicle. It can be placed inside the crash board without a housing. That is, an opening is formed on one surface of the vehicle body, the opening is disposed to face the front of the vehicle, and a light receiving sensor may be attached to the inside of the opening.
도 7은 본 발명의 조도센서 장치가 차량에 장착되어 동작되는 과정을 설명하기 위한 도이다.7 is a view for explaining a process of operating the illuminance sensor device of the present invention mounted on the vehicle.
도시된 바와 같이, 조도센서 장치는 차체(300) 전방으로 하우징(110)의 개구부(G1)가 배치되도록 차량 일면에 배치되어, 주행시 전방에 터널이 나올 경우, 상기 조도센서 장치는 앞서 설명한 바와 같이 전방의 특정영역 즉, 터널에서 오는 빛을 감지하게 된다. 즉, 조도센서 장치의 수광센서(150)는 터널에서 오는 빛의 밝기를 감지하고, 감지된 빛의 밝기는 전압값으로 변화되어 BCM 컨트롤러(210)에 전달된다. BCM 컨트롤러(210)는 미리 설정된 자동차 전조등(250)의 기준값과 비교하여 기준값 이하일 경우, 릴레이(230)의 제어 하에 전조등(250)이 점등되고, 기준값 이상일 경우, 전조등(250)은 소등된다.As shown, the illumination sensor device is disposed on one surface of the vehicle so that the opening G1 of the housing 110 is disposed in front of the vehicle body 300, and when the tunnel comes out in front of the vehicle, the illumination sensor device is as described above. It detects light coming from a specific area in front of the tunnel. That is, the light receiving sensor 150 of the illuminance sensor device detects the brightness of the light coming from the tunnel, and the detected light brightness is converted into a voltage value and transmitted to the BCM controller 210. When the BCM controller 210 is less than or equal to the reference value of the preset vehicle headlight 250, the headlamp 250 is turned on under the control of the relay 230, and when the BCM controller 210 is greater than or equal to the reference value, the headlamp 250 is turned off.
따라서, 운전자가 터널에 진입할 경우에도, 터널 진입 전에 미리 터널의 빛의 밝기를 감지하여 전조등을 점등할 수 있기 때문에, 전방의 시야가 갑자기 어두어짐에 따른 위험을 미리 방지할 수 있게 된다.Therefore, even when the driver enters the tunnel, the headlights may be turned on by sensing the brightness of the tunnel light before entering the tunnel, thereby preventing the danger of sudden darkening of the front view.
본 발명의 권리는 위에서 설명된 실시예에 한정되지 않고 청구범위에 기재된 바에 의해 정의되며, 본 발명의 분야에서 통상의 지식을 가진 자가 청구범위에 기재된 권리범위 내에서 다양한 변형과 개작을 할 수 있다는 것은 자명하다.The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

Claims (7)

  1. 차체의 일면에 배치되고, 상기 차체의 전방을 향하도록 개구된 개구부를 갖는 하우징; 및 A housing disposed on one surface of the vehicle body and having an opening opened to face the front of the vehicle body; And
    상기 하우징의 개구부로 유입되는 빛을 수광하도록 상기 하우징 내에설치되는 수광센서를 포함하는 차량 전조등용 조도센서 장치.And a light receiving sensor installed in the housing to receive light flowing into the opening of the housing.
  2. 제 1항에 있어서,The method of claim 1,
    상기 하우징의 개구부 내에 수용되어 상기 수광센서 상부에 배치되고, 상기 개구부로부터 유입되는 빛을 투과시키는 광학 구조물; 및An optical structure accommodated in an opening of the housing and disposed above the light receiving sensor and transmitting light from the opening; And
    상기 광학 구조물과 상기 수광센서 사이에 배치되어 상기 하우징의 개구부로부터 유입되는 빛의 입사각을 줄이기 위해 상기 하우징의 개구부보다 작은 개구부를 갖는 차단부재를 더 포함하는 차량 전조등용 조도센서 장치.And a blocking member disposed between the optical structure and the light receiving sensor, the blocking member having an opening smaller than the opening of the housing to reduce an incident angle of light flowing from the opening of the housing.
  3. 제 2항에 있어서,The method of claim 2,
    상기 차단 부재의 개구부의 직경은 조절 가능한 차량 전조등용 조도센서 장치.Illumination sensor device for a vehicle headlight of the opening of the blocking member is adjustable.
  4. 제 1항 또는 제 2항에 있어서,The method according to claim 1 or 2,
    상기 수광센서를 감싸 보호하는 커버부재를 더 포함하고, 상기 커버부재는 광 투과성 재질인 차량 전조등용 조도센서 장치.And a cover member covering and protecting the light receiving sensor, wherein the cover member is a light transmitting sensor device for a vehicle headlight having a light transmissive material.
  5. 제 2항에 있어서, The method of claim 2,
    상기 광학 구조물은 상기 빛을 수렴시키기 위한 볼록렌즈인 차량 전조등용 조도센서장치.And the optical structure is a convex lens for converging the light.
  6. 제 1항에 있어서,The method of claim 1,
    상기 하우징의 개구부 내에 수용되어 상기 수광센서 상부에 배치되고, 상기 개구부로부터 유입되는 빛을 투과시키는 광학 구조물를 포함하고,An optical structure which is accommodated in an opening of the housing and disposed above the light receiving sensor, and transmits light flowing from the opening;
    상기 개구부를 구획하는 상기 하우징의 상단은 상기 수광센서의 일단면을 기준으로 하여 상기 광학 구조물의 상단 보다 높은 위치에 배치되는 차량 전조등용 조도센서 장치. And an upper end of the housing for partitioning the opening is disposed at a position higher than an upper end of the optical structure based on one end surface of the light receiving sensor.
  7. 제 1항 또는 제 6항에 있어서,The method according to claim 1 or 6,
    상기 하우징은 상기 광학 구조물과 평행하게 배치된 베이스부와 상기 베이스부로부터 연장되어 돌출된 돌출부를 포함하고, 상기 돌출부는 상기 하우징의 개구부를 구획하는 차량 전조등용 조도센서 장치.The housing includes a base portion disposed in parallel with the optical structure and a protrusion extending from the base portion, wherein the protrusion defines an opening of the housing.
PCT/KR2012/004928 2011-07-07 2012-06-22 Illumination intensity sensor device for a vehicle headlight WO2013005933A2 (en)

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