JP2017081261A - Cover of stereo camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover of a stereo camera which prevents light reflected by a windshield from appearing in a lense without deteriorating maintainability.SOLUTION: A cover 30 of a stereo camera mounting structure 10 includes: a cover body part 31 covering a stereo camera 20; two window parts 32 which open at a front part of the cover body part 31 in front of two lenses 21; and two appearing prevention members 40 which are attached to the front part of the cover body part 31 and protrude from at least lower parts of the two window parts 32 to the front side. The appearing prevention member 40 is formed by an elastic material.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cover that covers a stereo camera body provided with two lenses.

  Some vehicles, such as automobiles, are equipped with a camera that captures the front of the vehicle, and this vehicle urges the driver to call attention so that the vehicle travels in the lane based on the image captured by the camera. Assist the driver's handle operation.

  As this type of conventional camera, the one described in Patent Document 1 is known. The camera described in Patent Document 1 is configured as a stereo camera including two lenses, and is installed on a lower surface of a ceiling in a vehicle compartment so as to photograph the front of the vehicle in three dimensions through a windshield. .

  By the way, since the camera of patent document 1 image | photographs the front of a vehicle through a windshield, when there is a clearance gap between a windshield and a lens, the light from the vehicle-mounted apparatus etc. under a camera is front. It may be reflected on the glass and enter the camera lens. When reflected light from the windshield enters the lens of the camera, this light is reflected in the captured image of the camera.

  FIG. 5 shows a conventional stereo camera mounting structure. In FIG. 5, the stereo camera mounting structure 110 includes a stereo camera 120 supported on the lower surface of the ceiling 102 in the passenger compartment 101 </ b> A of the vehicle 101, and a cover 130 that covers the stereo camera 120. Two lenses 121 are provided at the front portion of the stereo camera 120 so that the front of the vehicle 101 is desired.

Two lenses 121 are provided at the front portion of the stereo camera 120 so that the front of the vehicle 101 is desired.
Further, the cover 130 is provided with a window 132 that opens at a position in front of the lens 121.

  In this conventional stereo camera mounting structure 110, a gap is formed between the lens 121 and the windshield 103, and an in-vehicle device such as an instrument panel or garnish (not shown) below the stereo camera mounting structure 110 is formed. Is reflected by the windshield 103 and is incident on the lens 121 of the stereo camera 120.

  Therefore, a device described in Patent Document 2 is known as a device for preventing reflection of reflected light on the lens. The camera described in Patent Document 2 is configured as a monocular camera including one lens. In this camera, a light shielding member is provided at the lower part of the camera, so that light directed from the in-vehicle device or the like toward the windshield is shielded and reflection of reflected light on the lens is prevented.

Japanese Patent Laid-Open No. 11-301365 JP 2010-042703 A

  However, when the light shielding member of the monocular camera described in Patent Document 2 is provided for the stereo camera described in Patent Document 1, the light shielding member is provided up to a portion that does not need to be shielded between the two lenses of the stereo camera. It will be covered with.

  In this way, if the area more than necessary is covered with the light shielding member, the maintenance work that wipes off the dirt on the windshield will interfere with the light shielding member when wiping the front part of the stereo camera mounting structure, reducing the maintainability. There was a risk. In addition, the light shielding member interferes during the maintenance work of wiping off the dirt of the stereo camera, and there is a possibility that the maintainability is lowered.

  The present invention has been made paying attention to the above-described problems, and provides a stereo camera cover that can prevent light reflected by a windshield from being reflected on a lens without deteriorating maintainability. It is for the purpose.

  The present invention provides a cover for a stereo camera that covers a stereo camera that includes two lenses disposed to face a windshield, the cover body covering the stereo camera, and the cover in front of the two lenses. Two window portions each opening at the front portion of the main body portion, and two reflection preventing members mounted on the front portion of the cover main body portion and projecting forward from at least the lower portions of the two window portions, It is characterized by providing.

  According to the present invention, since the reflection preventing member protrudes in front of the lens of the stereo camera body at the window portion, it is possible to prevent reflection of light on the lens. In addition, since the anti-reflection member is provided only in front of the two lenses and is not provided between the two lenses, the maintainability when wiping off the dirt on the windshield in the portion between the two lenses. Is not reduced. Further, when wiping off the dirt on the camera body, the dirt can be wiped off from either the left or right side of the lens, and the anti-reflection member does not interfere, so that the maintainability is not lowered. As a result, it is possible to prevent the light reflected by the windshield from being reflected on the lens without degrading the maintainability.

FIG. 1 is a view showing an embodiment of a cover of a stereo camera of the present invention, and is a perspective view of a stereo camera provided with a reflection preventing member. FIG. 2 is a view showing an embodiment of the cover of the stereo camera of the present invention, and is a cross-sectional view of a stereo camera provided with a reflection preventing member. FIG. 3 is a view showing one embodiment of the cover of the stereo camera of the present invention, and is a cross-sectional view of the stereo camera provided with a slide-type reflection preventing member. FIG. 4 is a view showing an embodiment of the cover of the stereo camera of the present invention, and is a cross-sectional view of the stereo camera provided with a rotary reflection preventing member. FIG. 5 is a view showing a cover of a conventional stereo camera, and is a cross-sectional view of the stereo camera.

  Hereinafter, embodiments of a stereo camera cover according to the present invention will be described with reference to the drawings. 1-4 is a figure which shows the cover of the stereo camera of embodiment which concerns on this invention.

  First, the configuration will be described. 1 and 2, the vehicle 1 includes a stereo camera mounting structure 10. The stereo camera mounting structure 10 includes a stereo camera 20 and a cover 30 that covers the stereo camera 20.

  The stereo camera mounting structure 10 is installed in the passenger compartment 1 </ b> A of the vehicle 1. Two lenses 21 are provided in the front part of the stereo camera 20, and these lenses 21 are arranged to face the windshield 3 and photograph the front of the vehicle 1 through the windshield 3. The two lenses 21 are arranged so as to be separated from each other in the left-right direction of the vehicle 1 so as to photograph the front of the vehicle 1 in three dimensions.

  Then, the vehicle 1 urges the driver to call attention so that the vehicle 1 travels in the lane based on the image taken by the stereo camera 20 with the two lenses 21, and supports the driver's steering operation. It has become.

  A bracket 25 is provided on the top of the stereo camera 20, and a plurality of bolts 26 are inserted into the bracket 25 from below. The stereo camera 20 is fixed to the ceiling 2 by fastening bolts 26 to the ceiling 2 of the vehicle 1. In the present embodiment, the stereo camera 20 is installed in the vicinity of the windshield 3 at the front portion of the ceiling 2.

  The cover 30 has a cover main body 31, and the cover main body 31 covers the lower surface, front surface, rear surface, and left and right side surfaces of the stereo camera 20.

  Two windows 32 are provided on the front surface of the cover main body 31, and the windows 32 are opened in front of the two lenses 21 of the stereo camera 20. The stereo camera 20 captures the front of the vehicle 1 with the lens 21 of the stereo camera 20 through the window 32 of the cover main body 31.

  The cover 30 includes two reflection preventing members 40. The reflection preventing member 40 is attached to the front portion of the cover main body 31 and protrudes forward from the lower portions of the two window portions 32.

  In the present embodiment, the reflection preventing member 40 includes a rectangular horizontal wall portion 41 and two triangular vertical wall portions 42 that are continuous with the horizontal wall portion 41. The horizontal wall portion 41 protrudes forward from the lower end portion of the window portion 32. The vertical wall portion 42 protrudes forward from the side end portion of the window portion 32.

  The lower end portion of the vertical wall portion 42 is continuous with the left end portion and the right end portion of the horizontal wall portion 41, respectively. Therefore, the reflection preventing member 40 is formed in a U-shape facing upward as viewed from the front.

  The horizontal wall portion 41 and the vertical wall portion 42 of the reflection preventing member 40 are light directed toward an imaging region of the stereo camera 20 on the windshield 3 from an in-vehicle device such as an instrument panel or garnish (not shown) below the stereo camera 20. L is shielded from light.

  The vertical wall portion 42 may have a rectangular shape instead of a triangular shape. When the shape of the vertical wall portion 42 is a rectangular shape, more light L from the side of the space between the lens 21 and the windshield 3 can be shielded in front of the lens 21 than in the case of a triangular shape. . That is, the reflection preventing member 40 may be formed in a shape that protrudes forward from at least the lower part of the two window portions 32.

  The reflection preventing member 40 includes an engagement groove 45 behind the horizontal wall portion 41 and the vertical wall portion 42. The reflection preventing member 40 is locked to the cover main body portion 31 by engaging the engagement groove 45 with the edge of the window portion 32 of the cover main body portion 31. The reflection preventing member 40 is made of an elastic material such as rubber or elastomer.

  Next, the operation will be described. According to the present embodiment, the cover 30 of the stereo camera mounting structure 10 includes a cover main body 31 that covers the stereo camera 20 and two windows that open to the front of the cover main body 31 in front of the two lenses 21. 32 and two reflection preventing members 40 that are attached to the front part of the cover main body 31 and protrude from the at least lower part of the two window parts 32 toward the front.

  For this reason, since the reflection preventing member 40 protrudes and is attached to the front of the lens 21 of the stereo camera 20 at the window portion 32, the reflection of the light L on the lens 21 can be prevented.

  Further, since the reflection preventing member 40 is provided only in front of the two lenses 21 and is not provided between the two lenses 21, dirt on the windshield 3 in the portion between the two lenses 21 is removed. There is no deterioration in maintainability when wiping.

  Further, when the dirt on the lens 21 is wiped off, the lens 21 can be wiped from either the left or right side of the lens 21, and the reflection preventing member 40 does not interfere with each other, so that the maintainability is lowered. Absent.

  As a result, the light L reflected by the windshield 3 can be prevented from being reflected on the lens 21 without degrading the maintainability.

  Further, according to the present embodiment, the reflection preventing member 40 is made of an elastic material. For this reason, since the reflection preventing member can be elastically deformed and the dirt on the windshield 3 can be wiped off, the maintainability of the windshield 3 can be improved.

  While embodiments of the invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

  For example, as shown in FIG. 3, the reflection preventing member 40 may be configured to protrude toward the windshield 3 by sliding with respect to the cover main body 31. In FIG. 3, a protrusion 36 is provided on the side surface of the cover 30.

  The reflection preventing member 40 is provided with an arc-shaped slide groove 46, and a projection 36 is loosely fitted in the slide groove 46. The projection preventing member 40 shown in FIG. 3 slides in a circular arc on a predetermined movement trajectory while changing the posture by the projection 36 being guided in the slide groove 46, and protrudes or retracts toward the windshield 3 side. You can do it.

  As shown in FIG. 4, the reflection preventing member 40 may be configured to protrude toward the windshield 3 by rotating with respect to the cover main body 31. In FIG. 4, a cylindrical rotating shaft 37 protrudes from the side surface of the cover 30, and the rotating shaft 37 is supported by a hole (not shown) of the reflection preventing member 40. The reflection preventing member 40 in FIG. 4 can rotate around the rotation shaft 37 and be protruded or retracted toward the windshield 3 by supporting the rotation shaft 37 in the hole.

  1 ... vehicle, 1A ... cab, 10 ... stereo camera mounting structure, 20 ... stereo camera, 21 ... lens, 30 ... cover (stereo camera cover), 31 .. Cover body, 32 ... Window

Claims (2)

A stereo camera cover that covers a stereo camera with two lenses arranged facing the windshield,
A cover main body covering the stereo camera;
Two windows each opening in front of the cover body in front of the two lenses;
A stereo camera cover, comprising: two reflection preventing members mounted on a front portion of the cover main body portion and projecting forward from at least lower portions of the two window portions.   The stereo camera cover according to claim 1, wherein the reflection preventing member is made of an elastic material.

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