JP2013134366A - Camera device - Google Patents

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JP2013134366A
JP2013134366A JP2011284436A JP2011284436A JP2013134366A JP 2013134366 A JP2013134366 A JP 2013134366A JP 2011284436 A JP2011284436 A JP 2011284436A JP 2011284436 A JP2011284436 A JP 2011284436A JP 2013134366 A JP2013134366 A JP 2013134366A
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housing
lens
guide path
camera device
water droplets
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Hironori Kato
弘典 加藤
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Fujitsu General Ltd
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Fujitsu General Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a camera device capable of having a water droplet attaching to a lens efficiently removed.SOLUTION: A guide path for having the attached water droplet flow down from above the lens is formed on a top surface portion in the housing in the camera device having the lens arranged in the approximate center on a front surface of the housing and including a camera mechanism inside the housing. As an example of the guide path, it can be taken into consideration to form the guide path to be gutter-like by arranging two ribs and to form so that a space between the ribs are made narrower as going from the back surface side to a front surface side of the housing.

Description

本発明は、車載カメラ等の水滴が付着する環境下で使用されるカメラ装置において、レンズ表面に付着した水滴を除去するための技術に関するものである。   The present invention relates to a technique for removing water droplets attached to a lens surface in a camera device used in an environment where water droplets adhere, such as an in-vehicle camera.

自動車において後方確認又は側方確認等のために車載カメラの設置が行われるようになっている。この車載カメラは雨天時においても使用されるため、車載カメラのレンズに水滴が付着してカメラで撮像した画像が見難くなるという問題が生じる。   In-vehicle cameras are installed for vehicle rearward confirmation or lateral confirmation in automobiles. Since this in-vehicle camera is used even in rainy weather, there arises a problem that it is difficult to see an image captured by the camera due to water droplets adhering to the lens of the in-vehicle camera.

このような問題を課題としたものとして、特許文献１乃至３が既に提案されている。特許文献１には、車両が走行することによって自然に通風路に風が取り込まれてその通風路の出口から放出される風によって車載カメラ等の対象物に付着した塵、水滴などを除去する風圧発生装置が記載されている。特許文献２には、カメラ本体の外側に防水ハウジングを設けてこの防水ハウジングを振動させて水滴を除去する防水ハウジングシステムが記載されている。特許文献３には、レンズを鏡筒に固定するための環状の押え部材の前方表面に内周端から外周端にかけてレンズ表面についた水滴を押え部材の外周部から撮像範囲外に導出する役目を果たす溝を形成したレンズアッシが記載されている。
特開２００９−２８６２１６号公報 特開２０１０−２７１４３５号公報 特開２００７−３１６１６７号公報 Patent Documents 1 to 3 have already been proposed to address such problems. Patent Document 1 discloses a wind pressure that removes dust, water droplets, and the like attached to an object such as an in-vehicle camera by wind that is naturally taken into the ventilation path when the vehicle travels and is discharged from the outlet of the ventilation path. A generator is described. Patent Document 2 describes a waterproof housing system in which a waterproof housing is provided outside the camera body, and the waterproof housing is vibrated to remove water droplets. Japanese Patent Laid-Open No. 2004-228561 has a function of leading water droplets attached to the lens surface from the outer peripheral portion of the pressing member to the outside of the imaging range from the inner peripheral end to the outer peripheral end on the front surface of the annular pressing member for fixing the lens to the lens barrel. A lens assembly in which a groove is formed is described.
JP 2009-286216 A JP 2010-271435 A JP 2007-316167 A

カメラのレンズ部分が大きい場合には、ワイパーを用いる水滴除去方法も有効であるが、車載カメラのように小型カメラのレンズ部分の水滴を除去するにはあまり現実的ではない。また、特許文献１や特許文献２による送風又は振動による水滴除去の方法も、形状及び質量の小さい水滴に対しては水滴の大きさや重さに対して水滴の付着力が大きいため、効果が小さく、有効に機能しない。さらに、特許文献３に記載の溝による水滴除去については、水滴が外周の溝に触れないとその効果が得られず、水滴がレンズ中央に付着している場合には効果が得られないため、効果が限定的であるという問題があった。   When the lens portion of the camera is large, a water droplet removal method using a wiper is also effective, but it is not very practical to remove water droplets on the lens portion of a small camera like an in-vehicle camera. Further, the method of removing water droplets by blowing or vibration according to Patent Document 1 or Patent Document 2 is also less effective for water droplets having a small shape and mass because the adhesion force of the water droplets is large relative to the size and weight of the water droplets. Does not work effectively. Furthermore, for the water droplet removal by the groove described in Patent Document 3, the effect cannot be obtained unless the water droplet touches the outer circumferential groove, and the effect cannot be obtained when the water droplet adheres to the center of the lens. There was a problem that the effect was limited.

本発明は、上記問題点に鑑みなされたものであり、レンズに付着した水滴を効率よく除去可能なカメラ装置を提供することを目的とするものである。   The present invention has been made in view of the above problems, and an object thereof is to provide a camera device capable of efficiently removing water droplets attached to a lens.

本発明の請求項１は、筐体正面にレンズ又はレンズカバーを設け、筐体内部にカメラ機構を備えたカメラ装置において、前記筐体に付着した水滴を集め、レンズに対して上側から流下させるための誘導路を前記筐体の上面部分に形成したことを特徴とするカメラ装置である。   According to a first aspect of the present invention, in a camera device provided with a lens or a lens cover on the front surface of the housing and provided with a camera mechanism inside the housing, water droplets attached to the housing are collected and flowed down from the upper side with respect to the lens. The camera apparatus is characterized in that a guide path for the above is formed on an upper surface portion of the casing.

本発明の請求項２は、請求項１に加えて、前記誘導路は、２つのリブを設けることによって樋状に形成したものであり、前記リブ同士の間隔は前記筐体の背面側から前面側に向かって狭くなっていることを特徴とするカメラ装置である。   According to a second aspect of the present invention, in addition to the first aspect, the guide path is formed in a bowl shape by providing two ribs, and the interval between the ribs is from the back side of the housing to the front side. The camera device is characterized by being narrowed toward the side.

本発明の請求項３は、請求項１に加えて、前記誘導路は、前記筐体の上面部分に背面側から正面側に向かって連続した溝を複数形成したものであることを特徴とするカメラ装置である。   According to a third aspect of the present invention, in addition to the first aspect, the guide path is characterized in that a plurality of continuous grooves are formed in the upper surface portion of the housing from the back side to the front side. It is a camera device.

本発明の請求項４は、請求項１に加えて、前記誘導路は、前記筐体の上面部分が正面視において中央が窪み外側が高くなる様に左右にテーパー面を形成したものであることを特徴とするカメラ装置である。   According to a fourth aspect of the present invention, in addition to the first aspect, the guide path is formed by forming a tapered surface on the left and right so that the upper surface portion of the housing is recessed in the center when viewed from the front and the outer side is higher. It is a camera apparatus characterized by this.

本発明の請求項５は、請求項１乃至４に加えて、前記筺体の側面に付着した水滴を側方からレンズに対して流下させるための誘導路を前記筺体の側面にさらに形成したことを特徴とするカメラ装置である。   According to a fifth aspect of the present invention, in addition to the first to fourth aspects, a guide path for allowing water droplets adhering to the side surface of the housing to flow down from the side to the lens is further formed on the side surface of the housing. This is a featured camera device.

本発明の請求項６は、請求項１乃至５に加えて、前記筺体の表面に撥水加工を施したことを特徴とするカメラ装置である。   According to a sixth aspect of the present invention, in addition to the first to fifth aspects, a camera device is characterized in that a water repellent finish is applied to the surface of the casing.

本発明によれば、付着した水滴を集めレンズに対して上側から流下させるための誘導路を前記筐体の上面部分に形成したので、筺体上面に付着した水滴をレンズに対して上側から流下させることでレンズ表面に付着した水滴と結合して共に流下させて除去できるため、カメラによって撮像する画像がレンズ表面に付着した水滴によって不明瞭となることを防止することが可能となる。   According to the present invention, since the guide path for collecting the attached water droplets and flowing down from the upper side to the lens is formed on the upper surface portion of the housing, the water droplets adhering to the upper surface of the housing are caused to flow down from the upper side to the lens. As a result, the water droplets attached to the lens surface can be combined and flowed down to be removed, so that it is possible to prevent the image captured by the camera from being obscured by the water droplets attached to the lens surface.

誘導路としては、リブによる樋状の形状、誘導溝、テーパー面などの態様があるが、いずれによっても筺体上面に付着した水滴を効率的に集めてレンズに対して上側から流下させることができる。   The guide path includes a rib-like shape by a rib, a guide groove, a tapered surface, and the like, but any of them can efficiently collect water droplets adhering to the upper surface of the casing and flow down from the upper side to the lens. .

また、誘導路を筺体の側面にも形成することで、例えば、レンズの下部と筺体との境界部分において落下せずに留まっている水滴を除去することができ、これにより、撮像画像の下部に水滴が映り込む現象を軽減することが可能となる。   In addition, by forming the guide path also on the side surface of the housing, for example, it is possible to remove water droplets that remain without falling at the boundary portion between the lower portion of the lens and the housing, and thereby, in the lower portion of the captured image. It is possible to reduce the phenomenon that water droplets are reflected.

さらに、前記筺体の表面に撥水加工を施すことによって、大きくなった水滴が転がり易くなり、誘導路による水滴を集める機能がより高まる。   Furthermore, by applying a water repellent treatment to the surface of the casing, the enlarged water droplets are easy to roll, and the function of collecting the water droplets by the guide path is further enhanced.

本発明によるカメラ装置１０の実施例１の構成を表したものであり、（ａ）は平面図であり、（ｂ）は正面図である。1 illustrates a configuration of a first embodiment of a camera device 10 according to the present invention, in which (a) is a plan view and (b) is a front view. 本発明によるカメラ装置１０の実施例２の構成を表した正面図である。It is the front view showing the structure of Example 2 of the camera apparatus 10 by this invention. 本発明によるカメラ装置１０の実施例３の構成を表した平面図である。It is a top view showing the structure of Example 3 of the camera apparatus 10 by this invention. 本発明によるカメラ装置１０の実施例４の構成を表した正面図である。It is the front view showing the structure of Example 4 of the camera apparatus 10 by this invention. カメラ装置１０の概略の構成を表した斜視図である。1 is a perspective view illustrating a schematic configuration of a camera device 10.

本発明によるカメラ装置は、雨滴などの水滴がレンズに付着する環境において使用されることを前提としたものであり、自動車のバックモニターのための車載カメラ等に利用されるものを想定している。図５に示すように、カメラ装置１０は、筺体１１の正面中央にレンズ１２が配置され、後方側にブラケットなどに角度調整して固定するための固定部１３が設けられている。固定部１３としては、図５のようにフリーで角度調整した後にネジ止めよって固定する方法の他に、歯車などの部品を噛ませることによって所定間隔で角度調整を可能にした方法など、さまざまな固定方法が存在するが、本発明は、固定部１３の固定手段にかかわらず、筺体１１部分における構造によってレンズ１２に付着した水滴を効率よく除去するものであるため、図１乃至図４及び以降の説明においては、固定部１３の構造については説明を省略する。   The camera device according to the present invention is assumed to be used in an environment where water drops such as raindrops adhere to the lens, and is assumed to be used for an in-vehicle camera for a back monitor of an automobile. . As shown in FIG. 5, the camera device 10 has a lens 12 disposed in the center of the front surface of the housing 11, and a fixing portion 13 for adjusting and fixing the angle to a bracket or the like on the rear side. As the fixing portion 13, there are various methods such as a method of adjusting the angle at predetermined intervals by engaging a component such as a gear in addition to a method of fixing by screwing after adjusting the angle freely as shown in FIG. 5. Although there is a fixing method, the present invention efficiently removes water droplets adhering to the lens 12 due to the structure of the housing 11 regardless of the fixing means of the fixing portion 13, and therefore FIG. 1 to FIG. In the description, the description of the structure of the fixing portion 13 is omitted.

図１に示すのは、本発明によるカメラ装置１０の実施例１の構成を表したものであり、（ａ）は平面図であり、（ｂ）は正面図である。この図１に示すカメラ装置１０は、図５と同様に、筺体１１の正面中央にレンズ１２が配置されたものである。ここで、図１（ａ）及び（ｂ）において、１４は、筺体１１の上面に付着した水滴Ａをレンズ１２に対して上側から流下するための誘導路としてリブである。このリブ１４は、図１（ｂ）からもわかるように、筺体１１の上面から一定の高さをもって形成されている。このリブ１４を筺体１１の上面に２つ設け、かつ、平面視において筺体１１の後方側から正面側に近づくにつれて初めは平行でその後２つのリブ１４の間隔を狭めて、最も正面側の部分においてリブ１４の間隔がレンズ１２の幅以内となるように形成する。このように形成した２つのリブ１４と筺体１１の上面とによって樋状に形成されることで、水滴Ａを集める働きをする誘導路として機能する。また、図１（ｂ）において、１５は、筺体１１の側面に付着した水滴Ａを側方からレンズ１２の下部に対して流下させるための誘導路としてのリブである。この図１（ｂ）においては、リブ１５は凸状部として形成しているが、リブ上面が９０°折れ曲がった断面がＬ字状になるように構成して文字通り樋状に形成するようにしてもよい。   FIGS. 1A and 1B show the configuration of the first embodiment of the camera apparatus 10 according to the present invention. FIG. 1A is a plan view and FIG. 1B is a front view. The camera device 10 shown in FIG. 1 has a lens 12 disposed in the center of the front surface of a housing 11 as in FIG. Here, in FIGS. 1A and 1B, reference numeral 14 denotes a rib as a guide path for allowing the water droplet A attached to the upper surface of the housing 11 to flow down from the upper side with respect to the lens 12. As can be seen from FIG. 1B, the rib 14 is formed with a certain height from the upper surface of the housing 11. Two ribs 14 are provided on the upper surface of the casing 11, and in the plan view, the distance from the rear side of the casing 11 to the front side becomes parallel at first, and then the interval between the two ribs 14 is narrowed. The ribs 14 are formed so that the interval between the ribs 14 is within the width of the lens 12. The two ribs 14 thus formed and the upper surface of the casing 11 are formed in a bowl shape, thereby functioning as a guide path that serves to collect the water droplets A. In FIG. 1B, reference numeral 15 denotes a rib as a guide path for allowing the water droplet A attached to the side surface of the casing 11 to flow down from the side to the lower portion of the lens 12. In FIG. 1 (b), the rib 15 is formed as a convex portion. However, the rib upper surface is bent by 90 ° so that the L-shaped cross section is formed so that it is literally formed in a bowl shape. Also good.

ここで、水滴については、自然現象として次の２つの性質が知られている。１つは、水玉同士が接触すると一つの大きな水玉に成長する性質であり、もう１つは、大きな水玉ほど重力により下方へ流れ落ちやすくなる性質である。これらの性質を利用して、レンズ１２に付着した水滴Bを効率よく除去するのが本発明の特徴である。   Here, regarding water droplets, the following two properties are known as natural phenomena. One is the property of growing into one large polka dot when the polka dots come into contact with each other, and the other is the property that the larger the polka dot, the more easily it flows down by gravity. It is a feature of the present invention that the water droplets B attached to the lens 12 are efficiently removed using these properties.

前述の通り、本発明によるカメラ装置１０は、自動車のバックモニターのための車載カメラ等に利用されることを想定しており、この場合、カメラ装置１０は、斜め下方を撮像出来るように斜め下方に傾けて設置される。よって、このような状況においては、筺体１１の上面に付着した水滴Ａは、筺体１１の上面が傾斜面となってレンズ１２に向かって水滴が落ちる方向に重力が働く。よって、筺体１１の上面に付着した水滴Ａは、レンズ１２の設けられた正面側に向かって流下するとともに、徐々に近接する水滴Ｂと結合してより大きな水滴となっていくということになる。このとき、図１（ａ）及び（ｂ）に示すように、筺体１１の上面に２つのリブ１４を設けることによって、正面側に流下する水滴Ａが必ずレンズ１２の表面を通過するようにする。このような構成によって、レンズ１２の表面に付着した水滴Ｂを筺体１１の上面からの水滴Ａと結合させてともに流下させて除去することができる。これにより、カメラによって撮像する画像が水滴Ｂによって不明瞭となることを防止することが可能となる。   As described above, the camera device 10 according to the present invention is assumed to be used in an in-vehicle camera for a back monitor of an automobile, and in this case, the camera device 10 is obliquely below so that an image of the obliquely downward direction can be captured. It is installed at an angle. Therefore, in such a situation, the water droplets A attached to the upper surface of the housing 11 are subjected to gravity in the direction in which the water droplet falls toward the lens 12 with the upper surface of the housing 11 being an inclined surface. Therefore, the water droplet A adhering to the upper surface of the housing 11 flows down toward the front side where the lens 12 is provided, and is gradually combined with the water droplet B which is close to become a larger water droplet. At this time, as shown in FIGS. 1A and 1B, the two ribs 14 are provided on the upper surface of the housing 11 so that the water droplet A flowing down to the front side always passes through the surface of the lens 12. . With such a configuration, the water droplets B attached to the surface of the lens 12 can be combined with the water droplets A from the upper surface of the housing 11 and flowed down together to be removed. Thereby, it is possible to prevent an image captured by the camera from being obscured by the water droplet B.

また、レンズ１２の下部と筺体１１との境界部分において、水滴Ｃが流下せずに留まる現象が生じる。この部分の水滴Ｃを効率的に除去するために、図１（ｂ）に示すように、筺体１１の側面に付着した水滴Ｄを側方からレンズ１２の下部に対して流下させるための誘導路としてのリブ１５を形成した。これにより、撮像画像の下部に水滴Ｃが映り込む現象を軽減することが可能となる。   In addition, a phenomenon occurs in which the water droplet C does not flow down at the boundary portion between the lower portion of the lens 12 and the housing 11. In order to efficiently remove the water droplets C in this portion, as shown in FIG. 1B, a guide path for allowing the water droplets D adhering to the side surface of the housing 11 to flow down from the side to the lower part of the lens 12. As a result, a rib 15 was formed. As a result, it is possible to reduce the phenomenon in which the water droplets C appear in the lower part of the captured image.

以上のように、本発明によるカメラ装置１０は、レンズ１２の表面に付着して留まる水滴Ｂを除去するために、筺体１１の上面に付着した水滴Ａをレンズ１２に対して上側から流下させるための誘導路としてリブ１４を設け、また、レンズ１２の下部において筺体１１との境界部分に留まっている水滴Ｃを除去するために、筺体１１の側面に付着した水滴Ｄを側方からレンズ１２の下部に対して流下させるための誘導路としてのリブ１５を設けたので、カメラによって撮像する画像が水滴Ｂ、Ｃによって不明瞭となることを防止することが可能となる。   As described above, the camera device 10 according to the present invention causes the water droplet A attached to the upper surface of the housing 11 to flow down from the upper side with respect to the lens 12 in order to remove the water droplet B remaining on the surface of the lens 12. A rib 14 is provided as a guide path for the lens 12, and in order to remove the water droplet C remaining at the boundary with the housing 11 at the lower part of the lens 12, the water droplet D adhering to the side surface of the housing 11 is removed from the side of the lens 12. Since the rib 15 is provided as a guide path for flowing down with respect to the lower part, it is possible to prevent the image captured by the camera from being obscured by the water droplets B and C.

前記実施例１では、筺体１１の上面に形成したリブ１４と、筺体１１の側面に付着した水滴Ｅを側方からレンズ１２の下部に対して流下させるための誘導路としてのリブ１５とを設けているが、本発明はこれに限定されるものではない。例えば、図２に示すように、筺体１１の側面に付着した水滴Ｅをレンズ１２のほぼ真横部分に対して側方から流下させるための誘導路としてのリブ１６を更に追加するような構成であってもよい。このような構成とすることで、レンズ１２の表面に付着して留まる水滴Ｂをより効率的に除去することが出来る。   In the first embodiment, the rib 14 formed on the upper surface of the housing 11 and the rib 15 as a guide path for allowing the water droplet E attached to the side surface of the housing 11 to flow downward from the side to the lower portion of the lens 12 are provided. However, the present invention is not limited to this. For example, as shown in FIG. 2, the configuration is such that a rib 16 is further added as a guide path for causing water droplets E attached to the side surface of the housing 11 to flow from the side to the substantially lateral portion of the lens 12. May be. With such a configuration, it is possible to more efficiently remove the water droplet B that remains attached to the surface of the lens 12.

前記実施例１、２においては、誘導路としてのリブ１４乃至１６を形成して水滴Ａ、Ｄ、Ｅを誘導する構成としていたが、本発明はこれに限定されるものではない。例えば、図３に示すように、筺体１１の上面に誘導路としての誘導溝１７を複数形成するようにしてもよい。誘導溝１７は、図３に示すように、正面側から背面側に向かうにつれて互いの間隔が広がるように放射状に形成することが好ましい。誘導溝１７を形成することによって、水滴が溝の毛細管現象によって誘導されて、筺体１１の上面に付着した水滴をレンズ１２に対して上側から流下するための誘導路として機能する。   In the first and second embodiments, the ribs 14 to 16 as guide paths are formed to guide the water droplets A, D, and E. However, the present invention is not limited to this. For example, as shown in FIG. 3, a plurality of guide grooves 17 as guide paths may be formed on the upper surface of the housing 11. As shown in FIG. 3, the guide grooves 17 are preferably formed in a radial pattern so that the distance between the guide grooves 17 increases from the front side toward the back side. By forming the guide groove 17, the water droplet is guided by the capillary action of the groove and functions as a guide path for the water droplet attached to the upper surface of the housing 11 to flow down from the upper side with respect to the lens 12.

前記実施例１、２においては、誘導路としてのリブ１４乃至１６を形成して水滴Ａ、Ｄ、Ｅを誘導する構成としていたが、本発明はこれに限定されるものではない。例えば、図４に示すように、筺体１１の上面部分が正面視において中央が窪み外側が高くなる様に左右にテーパー面１８を設け、これを水滴の誘導路としてもよい。このような構成であっても、筺体１１の上面に付着した水滴をレンズ１２に対して上側から流下させることが可能である。   In the first and second embodiments, the ribs 14 to 16 as guide paths are formed to guide the water droplets A, D, and E. However, the present invention is not limited to this. For example, as shown in FIG. 4, tapered surfaces 18 may be provided on the left and right so that the center of the upper surface portion of the housing 11 is recessed in the front view and the outside becomes higher, and this may be used as a water droplet guide path. Even with such a configuration, it is possible to cause water droplets attached to the upper surface of the housing 11 to flow down from the upper side with respect to the lens 12.

前記実施例１乃至４においては、筺体１１の断面が概略正方形となる形状のものを用いて説明を行ったが、本発明はこれに限定されるものではない。例えば、概略円筒形の筺体からなるカメラ装置であっても、前記実施例１乃至４の発明は同様に適用可能である。また、本実施例ではレンズ表面に水滴を流下させ、レンズ表面に留まる水滴を除去する例を示したが、レンズを覆う様に透明なレンズカバー１９を設け、レンズを保護する構造とした場合でも本発明は適用可能であり、レンズカバー１９に付着した水滴を効果的に除去することができる。   In the first to fourth embodiments, the case 11 has been described using a shape in which the cross section of the housing 11 is approximately square, but the present invention is not limited to this. For example, the invention of the first to fourth embodiments can be similarly applied even to a camera device having a substantially cylindrical casing. Further, in this embodiment, an example is shown in which water droplets flow down on the lens surface and water droplets remaining on the lens surface are removed, but even when a transparent lens cover 19 is provided so as to cover the lens to protect the lens. The present invention is applicable, and water droplets attached to the lens cover 19 can be effectively removed.

前記実施例１乃至４に加えて、更に、筺体１１の表面に撥水加工を施すことで、大きくなった水滴が転がり易くなり、誘導路による集水機能がより高まるという効果がある。   In addition to the first to fourth embodiments, the surface of the housing 11 is further subjected to water repellent treatment, so that the enlarged water droplets are easy to roll and the water collecting function by the guide path is further enhanced.

１０…カメラ装置、１１…筺体、１２…レンズ、１３…固定部、１４…リブ、１５…リブ、１６…リブ、１７…誘導溝、１８…テーパー面。１９…レンズカバー、Ａ…水滴、Ｂ…水滴、Ｃ…水滴、Ｄ…水滴、Ｅ…水滴 DESCRIPTION OF SYMBOLS 10 ... Camera apparatus, 11 ... Housing, 12 ... Lens, 13 ... Fixing part, 14 ... Rib, 15 ... Rib, 16 ... Rib, 17 ... Guide groove, 18 ... Tapered surface. 19 ... Lens cover, A ... Water drops, B ... Water drops, C ... Water drops, D ... Water drops, E ... Water drops

Claims (6)

筐体正面にレンズ又はレンズカバーを設け、筐体内部にカメラ機構を備えたカメラ装置において、前記筐体に付着した水滴を集め、レンズに対して上側から流下させるための誘導路を前記筐体の上面部分に形成したことを特徴とするカメラ装置。   In a camera device provided with a lens or a lens cover on the front surface of the housing and having a camera mechanism inside the housing, a guide path for collecting water droplets attached to the housing and flowing down from the upper side to the lens is provided in the housing A camera device formed on the upper surface of the camera. 前記誘導路は、２つのリブを設けることによって樋状に形成したものであり、前記リブ同士の間隔は前記筐体の背面側から前面側に向って狭くなっていることを特徴とする請求項１記載のカメラ装置。   The guide path is formed in a bowl shape by providing two ribs, and an interval between the ribs is narrowed from the back side to the front side of the housing. 1. The camera device according to 1. 前記誘導路は、前記筐体の上面部分に背面側から正面側に向かって連続した溝を複数形成したものであることを特徴とする請求項１記載のカメラ装置。   2. The camera apparatus according to claim 1, wherein the guide path is formed by forming a plurality of continuous grooves from the back side to the front side in the upper surface portion of the housing. 前記誘導路は、前記筐体の上面部分が正面視において中央が窪み外側が高くなる様に左右にテーパー面を形成したものであることを特徴とする請求項１記載のカメラ装置。   2. The camera device according to claim 1, wherein the guide path has a tapered surface on the left and right so that the upper surface portion of the housing is recessed in the center and the outer side is high when viewed from the front. 前記筺体の側面に付着した水滴を側方からレンズに対して流下させるための誘導路を前記筺体の側面にさらに形成したことを特徴とする請求項１乃至４記載のカメラ装置。   5. The camera device according to claim 1, further comprising a guide path formed on a side surface of the housing for allowing water droplets attached to the side surface of the housing to flow down from the side to the lens. 前記筺体の表面に撥水加工を施したことを特徴とする請求項１乃至５記載のカメラ装置。   6. The camera device according to claim 1, wherein a water repellent finish is applied to a surface of the casing.
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