JP2013216290A - High-mount stop lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-mount stop lamp capable of stably obtaining high image quality by an incorporated back camera while securing high waterproof reliability in the back camera.SOLUTION: A high-mount stop lamp 1 is disposed at a vehicle width direction center in an upper portion at a rear end of a vehicle and stores LEDs (light sources) 5 in a lamp chamber 4 partitioned by a housing 2 and a transparent outer lens 3 for covering the opening. The high-mount lamp 1 is configured to incorporate a back camera 10 at a vehicle width direction center in the lamp chamber 4. For instance, a light shielding section 11 is integrally formed at a vehicle width direction center of the outer lens 3 and a camera module 12 of the back camera 10 is incorporated into the light shielding section 11. A gap between the light shielding section 11 of the outer lens 3 and the camera module 12 is covered with waterproof cloth 16.

Description

  The present invention relates to a high-mount stop lamp incorporating a back camera.

  In the vehicle, the driver can know the surrounding situation by the rear-view mirrors provided at the left and right and in the center of the passenger compartment, but the back of the vehicle cannot be confirmed by the rear-view mirror.

  Therefore, a back camera is installed in a place where the bumper end portion at the rear of the vehicle body is reflected, and an image photographed by the back camera is displayed on a monitor screen provided in front of the driver's seat.

  By the way, the back camera is configured by incorporating a camera module including an image sensor, a lens group, and a substrate into a two-piece casing (see, for example, Patent Document 1). For this purpose, a method of fastening with screws via packing or the like is adopted for the joint portion.

  The installation location of such a back camera may be the upper part of the license plate, spoiler part, trunk end part, etc., but it can be installed in reality and attached so that the back camera is not noticeable (presence is not felt) The places where the above can be performed are limited to the upper part of the license plate, the spoiler part, and the high-mount stop lamp part. The back camera should ideally be installed on the center line of the vehicle. This is because the center of the image shifts from the center of the monitor screen as the back camera moves away from the center line of the vehicle.

JP 2004-216958 A

  However, it is not easy to install the rear camera on the upper part of the license plate because there are trunks and hatchback openers and handles at the center of the periphery of the license plate. Many vehicles have a license plate directly above the bumper, and if a rear camera is attached to the vehicle, widening with an ultra-wide-angle lens is required to capture the width of the bumper. When widening with an ultra-wide-angle lens, there arises a problem that the image is spheroidized and distorted, and image correction by software processing is required to correct the distortion of the image, resulting in an increase in cost.

  In addition, it is conceivable to incorporate a back camera into the spoiler. However, since the case of the back camera cannot physically be ultrasonically welded, the back camera cannot be self-waterproof, so that it can be waterproof. In addition, it is necessary to adopt a seal structure using packing and a method to fix the back camera with an adhesive, and it is impossible to adopt a manufacturing method that can ensure high waterproofness, and structural condensation occurs. There is a problem that it is easy.

  The present invention has been made in view of the above problems, and the object of the present invention is to provide a high image quality that can stably obtain high video quality while ensuring high waterproof reliability for the built-in back camera. It is to provide a mount stop lamp.

  In order to achieve the above object, according to the first aspect of the present invention, a light source is housed in a lamp chamber that is disposed at the center in the vehicle width direction at the upper rear end of the vehicle and is defined by a transparent outer lens that covers the housing and its opening. The high-mount stop lamp is constructed by incorporating a back camera in the center of the lamp chamber in the vehicle width direction.

  According to a second aspect of the present invention, in the first aspect of the present invention, a light shielding portion is integrally formed at the center of the outer lens in the vehicle width direction, and the camera module of the back camera is incorporated in the light shielding portion. .

  According to a third aspect of the present invention, in the second aspect of the present invention, a gap between the light shielding portion of the outer lens and the camera module is covered with a waterproof cloth.

  The invention according to claim 4 is the invention according to claim 2 or 3, wherein the light source is composed of a plurality of LEDs mounted on the main board, and the main board and the child board of the camera module are connected to the lead wire. It is characterized by being electrically connected by.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, an optical lens for widening an image photographed by the back camera is provided at the center in the width direction of the outer lens. It is characterized by.

  According to the first aspect of the present invention, the housing of the high-mount stop lamp and the outer lens are joined by ultrasonic welding or the like, and the lamp chamber defined by both is completely sealed to ensure high dust resistance. However, since the back camera is incorporated in the lamp chamber, it is not necessary to secure the self-waterproof property to the back camera, and the back camera has high waterproof reliability without the need for a sealing member such as packing or adhesive. can do. And since a back camera is incorporated in a high mount stop lamp and is not conspicuous (it does not feel presence), the appearance quality of the rear part of the vehicle is enhanced.

  Further, since the back camera is incorporated at the center in the width direction in the lamp chamber of the high-mount stop lamp disposed at the center in the vehicle width direction at the rear of the vehicle, the back camera is located on the center line of the vehicle. Since the center of the image taken by the camera is located at the center of the monitor screen, it is not necessary to correct the misalignment between the centers, and the center of the vehicle can be easily recognized on the monitor screen.

  Furthermore, since the high-mount stop lamp is arranged at a high position in the vehicle, the back camera incorporated in the lamp chamber is also installed in a form looking down from the high position, and a wide range is photographed by the back camera. Thus, an overhead view is possible without requiring image correction software.

  According to the second aspect of the present invention, since the camera module of the back camera is incorporated in the light shielding portion integrally formed in the center of the outer lens in the vehicle width direction, the light from the light source is shielded when the high mount stop lamp is turned on. The camera module is not blocked by the part. For this reason, the video image | photographed with a back camera does not receive the influence of a stray light, and can ensure high video quality stably.

  According to the third aspect of the present invention, since the gap between the light shielding part of the outer lens and the camera module is covered with the waterproof cloth, the light shielding part is sufficiently ventilated, and condensation does not occur in the light shielding part. For this reason, it is possible to stably ensure high video quality by the back camera.

  According to the invention described in claim 4, since the main board on which the plurality of LEDs are mounted and the child board of the camera module are electrically connected by the lead wire, the camera module can be fixed to the outer lens of the high mount stop lamp. In addition, the positional accuracy between the camera module and the outer lens can be improved, and high image quality by the back camera can be stably secured.

  According to the fifth aspect of the present invention, the image captured by the back camera is widened by the optical lens provided at the center in the width direction of the outer lens, so that a wide range behind the vehicle can be captured without causing image distortion. can do.

It is a plane sectional view of the high mount stop lamp concerning Embodiment 1 of the present invention. It is the A section enlarged detail drawing of FIG. It is a plane sectional view of the back camera part of the high mount stop lamp concerning Embodiment 2 of the present invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

<Embodiment 1>
1 is a plan sectional view of a high-mount stop lamp according to Embodiment 1 of the present invention, FIG. 2 is an enlarged detail view of a portion A in FIG. 1, and the high-mount stop lamp 1 shown in FIG. It is provided at the upper center in the vehicle width direction and functions to light up when the driver steps on the brake and informs the subsequent vehicle that the brake has been stepped on.

  The high-mount stop lamp 1 includes a plurality of LEDs 5 serving as a light source and a main body in which these LEDs 5 are mounted in a lamp chamber 4 defined by a housing 2 that is elongated to the left and right and an outer lens 3 that is also elongated to the left and right. The substrate 6 is accommodated. Here, a plurality (six in the illustrated example) of LEDs 5 are arranged on the main board 6 at appropriate intervals in the left-right direction, and the main board 6 is fixed to the housing 2 by screws 7 on the left and right.

  By the way, in such a high mount stop lamp 1, the flange portion 3 a formed on the periphery of the outer lens 3 is joined to the housing 2 by ultrasonic welding in order to ensure high dust resistance in the lamp chamber 4. These are fixed to the housing 2 by a plurality of screws 8. For this reason, the lamp chamber 4 defined by the housing 2 and the outer lens 3 constitutes a completely sealed space. Note that stud bolts 9 are erected on the bosses 2 a formed on the left and right sides of the housing 2, and these stud bolts 9 are passed through a vehicle body (not shown) of the vehicle and screwed into the stud bolts 9. By tightening a nut (not shown), the high-mount stop lamp 1 is attached to the center in the vehicle width direction at the rear of the vehicle body.

  Thus, the high-mount stop lamp 1 according to the present invention is characterized in that the back camera 10 is incorporated in the center of the lamp chamber 4 in the vehicle width direction. In the present embodiment, a cylindrical light shielding portion 11 that integrally projects toward the front of the vehicle (downward in FIGS. 1 and 2) is formed at the center of the outer lens 3 in the left-right direction. In addition, the optical module 12 of the back camera 10 is incorporated. Here, the light shielding unit 11 is for shielding light emitted from each LED 5, and is formed by two-color molding using a transparent resin and a light shielding resin, or insert molding or outsert molding of a shielding material such as metal on the transparent resin. It is formed by.

  The camera module 12 is incorporated into the shielding part 11 from the opening of the shielding part 11 of the outer lens 3. The child board 13 and the main board 6 provided in the camera module 12 are electrically connected by a lead wire 14. ing. Here, the back camera 10 includes a shielding part 11 as a housing and a camera module 12 incorporated therein, and is a camera module incorporated in the shielding part 11 at the center in the width direction of the outer lens 3. A transparent optical lens 15 is provided at a portion facing the 12 lens surfaces. The optical lens 15 is for making a wide angle image captured by the back camera 10.

  In the present embodiment, as shown in detail in FIG. 2, the ring-shaped gap formed between the opening of the light-shielding portion 11 of the outer lens 3 and the sub-substrate 13 of the camera module 12 is a ring-shaped gap. Covered by a waterproof cloth 16. The waterproof cloth 16 allows air to pass but functions to prevent water from passing.

  As described above, in the present embodiment, the housing 2 and the outer lens 3 of the high-mount stop lamp 1 are joined by ultrasonic welding, and the lamp chamber 4 defined by both is completely secured to ensure high dust resistance. Although it is hermetically sealed, since the back camera 10 is incorporated in the lamp chamber 4, it is not necessary to secure the self-waterproof property to the back camera 10, and the back camera 10 does not require a sealing member such as packing or adhesive. High waterproof reliability can be ensured for the camera 10. And since the back camera 10 is incorporated in the high mount stop lamp 1 and is not conspicuous (the presence is not felt), the appearance quality of the rear part of the vehicle is improved.

  Further, since the back camera 10 is incorporated at the center in the width direction in the lamp chamber 4 of the high-mount stop lamp 1 disposed at the center in the vehicle width direction at the rear of the vehicle, the back camera 10 is positioned on the center line of the vehicle. Thus, since the center of the image photographed by the back camera 10 is located at the center of the monitor screen, it is not necessary to correct the misalignment between the centers, and the center of the vehicle can be easily recognized on the monitor screen. it can.

  Further, since the high-mount stop lamp 1 is arranged at a high position in the vehicle, the back camera 10 incorporated in the lamp chamber 4 is also installed in a form looking down from the high position. A wide range can be photographed, and a bird's-eye view is possible without requiring image correction software.

  In this embodiment, since the camera module 12 of the back camera 10 is incorporated in the light-shielding portion 11 integrally formed in the center of the outer lens 3 in the vehicle width direction, the LED 5 from the LED 5 when the high-mount stop lamp 1 is lit. Since the light is blocked by the light blocking unit 11 and does not reach the camera module 12, an image captured by the back camera 10 is not affected by stray light, and high image quality can be stably ensured.

  Further, in the present embodiment, since the gap between the light shielding part 11 of the outer lens 3 and the camera module 12 is covered with the waterproof cloth 16, the light shielding part 11 is sufficiently ventilated and condensation occurs in the light shielding part 11. There is nothing to do. For this reason, no fogging occurs in the optical camera, and high image quality by the back camera 10 can be stably secured.

  Further, in the present embodiment, the main board 6 on which the plurality of LEDs 5 are mounted and the child board 13 of the camera module 12 are electrically connected by the lead wires 14, so that the camera module 12 is connected to the outer lens of the high-mount stop lamp 1. It can be fixed to the 3 side (light-shielding part 11), the positional accuracy of the camera module 12 and the outer lens 3 can be improved, and the high image quality by the back camera 10 can be ensured stably.

  Further, in the present embodiment, since the image captured by the back camera 10 is widened by the optical lens 15 provided at the center in the width direction of the outer lens 3, a wide range at the rear of the vehicle is generated without causing image distortion. You can shoot.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described below with reference to FIG.

  It is a top sectional view of the back camera part of the high mount stop lamp concerning Embodiment 2 of the present invention, and back camera 10 in the vehicle width direction center in lamp chamber 4 also in high mount stop lamp 1 concerning this embodiment. However, in the present embodiment, the cylindrical light shielding portion 11 constituting the casing of the back camera 10 is configured separately from the outer lens 3.

  A ring-shaped fitting groove 11a is formed on the outer periphery of one end portion on the main substrate 6 side of the light shielding portion 11, and the fitting groove 11a is erected on a holding member 17 fixed on the main substrate 6. By fitting the cylindrical holding ring 17 a, the light shielding portion 11 is interposed between the outer lens 3 and the main substrate 6, and the camera module 12 is incorporated in the light shielding portion 11. A plurality of vent holes 13 a are provided in the sub-board 13 of the camera module 12.

  Thus, also in the present embodiment, since the back camera 10 is incorporated at the center in the left-right direction in the lamp chamber 4 of the high-mount stop lamp 1, the same effect as in the first embodiment can be obtained. In the present embodiment, since the inside of the light shielding portion 11 is ventilated by the plurality of vent holes 13a penetrating the sub board 13 of the camera module 12, the optical lens 15 of the outer lens 3 is not fogged, and the back High video quality by the camera 10 can be stably secured.

DESCRIPTION OF SYMBOLS 1 High mount stop lamp 2 Housing 2a Housing boss 3 Outer lens 3a Outer lens flange 4 Lamp chamber 5 LED (light source)
6 Main board 7, 8 Screw 9 Stud bolt 10 Back camera 11 Light blocking part 11a Light receiving part fitting groove 12 Camera module 13 Sub-board of camera module 14 Lead wire 15 Optical lens 16 Waterproof cloth 17 Holding member 17a Holding ring for holding member

Claims (5)

A high-mount stop lamp that is disposed at the center in the vehicle width direction at the upper rear end of the vehicle and that houses a light source in a lamp chamber defined by a transparent outer lens that covers the housing and its opening,
A high mount stop lamp comprising a back camera incorporated in the center of the lamp chamber in the vehicle width direction.   The high-mount stop lamp according to claim 1, wherein a light-shielding portion is integrally formed at a center of the outer lens in the vehicle width direction, and a camera module of the back camera is incorporated in the light-shielding portion.   The high-mount stop lamp according to claim 2, wherein a gap between the light shielding portion of the outer lens and the camera module is covered with a waterproof cloth.   The said light source is comprised with several LED mounted in the main board | substrate, and this main board | substrate and the child substrate of the said camera module were electrically connected by the lead wire. High mount stop lamp. The high-mount stop lamp according to any one of claims 1 to 4, wherein an optical lens for widening an image photographed by the back camera is provided at the center in the width direction of the outer lens.

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