WO2012015134A1 - Vehicle side mirror - Google Patents

Vehicle side mirror Download PDF

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Publication number
WO2012015134A1
WO2012015134A1 PCT/KR2011/001266 KR2011001266W WO2012015134A1 WO 2012015134 A1 WO2012015134 A1 WO 2012015134A1 KR 2011001266 W KR2011001266 W KR 2011001266W WO 2012015134 A1 WO2012015134 A1 WO 2012015134A1
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Prior art keywords
curvature
region
radius
side mirror
mirror
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PCT/KR2011/001266
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French (fr)
Korean (ko)
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이호철
김도현
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한밭대학교 산학협력단
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Publication of WO2012015134A1 publication Critical patent/WO2012015134A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
    • B60R1/081—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors
    • B60R1/082—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors using a single wide field mirror or an association of rigidly connected mirrors

Definitions

  • the present invention relates to a side mirror for a vehicle.
  • the side mirror of the vehicle is formed in an aspheric multifocal form to maintain a viewing angle of a vehicle driver, thereby causing distortion of an image displayed through a blind spot due to a vehicle body and an in-vehicle side mirror. It relates to a vehicle side mirror configured to eliminate the.
  • the vehicle is equipped with a mirror outside the left and right front doors or in front of the bonnet in front of the left and right front doors or the inside of the vehicle in order for the driver to easily identify the left and right road conditions and monitor the room mirror according to the mounting position of the mirror. It is called a side mirror. That is, the mirrors located outside the left and right front doors or the front left and right points of the bonnet adjacent to the driver's seat and the passenger seat of the vehicle body are called side mirrors.
  • the driver can recognize the driving direction and speed of other vehicles traveling behind the vehicle through the side mirror while keeping an eye on the front left and right, so that the driver can maintain the safety distance from the vehicle in front of and behind the vehicle. You can safely pass or change lanes without disturbing the driving of other vehicles.
  • an auxiliary mirror may be further mounted on the vehicle. Since it does not give a full rearward view, two areas where the size of the rear object is constant need to be represented by one side mirror while minimizing optical distortion.
  • a side mirror for a vehicle is disclosed, and the outer side is formed with a convex curvature surface, and in Korean Patent Application Publication No. 20-0322014, a differential side having a planar shape as a whole but having an outer end curved to have a convex shape.
  • a mirror is disclosed.
  • Patent Document 10-0894432 discloses a progressive aspheric convex mirror having a convex mirror portion of a side mirror, and in Patent Document 10-0867439, at least three aspherical progressive focus regions are partitioned at predetermined intervals along a horizontal direction. The formed side mirror is disclosed.
  • the present invention solves all the problems of the above-mentioned prior arts and provides a curve having different curvature radii and an optimum connection curve connecting these curves, thereby only eliminating blind spots that the driver cannot see while driving the vehicle.
  • the purpose of the astigmatism is to adjust the astigmatism to solve the image distortion and inaccurate distance as much as possible so that the driver can feel the real comfort.
  • the side mirror for a vehicle divided into an inner region, an outer region, and a central region, each having a radius of curvature and an eccentricity in a horizontal direction
  • the eccentricity has different values, and the curvature radius and the eccentricity of both ends of the center region are equal to the radius of curvature and the eccentricity of the inner region and the outer region, and are gradually changed.
  • the vehicle side mirror according to the present invention ensures a wide viewing angle of the vehicle driver while ensuring continuity at the boundary of different radii of curvature, thereby adjusting astigmatism, eliminating blind spots, eliminating image distortion and inaccurate distance. It can feel similar to real life, and it has the effect of preventing traffic accident by preventing optical illusion and fatigue.
  • the vehicle side mirror of the present invention is divided into an inner region, an outer region, and a central region, and has a curvature radius and an eccentricity in a horizontal direction, and the curvature radius and the eccentricity of the inner region and the outer region are different from each other. It has a value, and the radius of curvature and the eccentricity at both ends of the central region are the same as the radius of curvature and the eccentricity of the inner region and the outer region, and is gradually changed.
  • FIG. 1 illustrates a vehicle side mirror of a driver's seat of the present invention
  • FIG. 2 illustrates a mirror portion of the vehicle side mirror of FIG. 1
  • FIGS. 3 and 4 illustrate a mirror of a vehicle side mirror according to an embodiment of the present invention. It is an example showing the radius of curvature of the negative horizontal direction.
  • the mirror part of the vehicle side mirror of the present invention is divided into an inner region A, an outer region C, and a central region B in a horizontal direction, and is divided into regions having respective curvature radii.
  • This area may be equally divided into three parts, but the inner area: center area: outer area has a ratio of 6.5: 1.5: 2.5 so that the area of the inner area exceeds half of the entire mirror part, and the image distortion and the inaccurate distance are sensed.
  • the area of the outer area was aspherical or spherical, and the astigmatism was enlarged to focus on the elimination of blind spots due to the enlarged field of view.
  • the radius of curvature of the inner region gradually increases up to the middle of the horizontal direction of the mirror portion, and has a maximum value at the middle portion thereof.
  • the variation of the radius of curvature is within 12.5% of the maximum value of the radius of curvature.
  • the radius of curvature of the outer region is very small compared to the radius of curvature of the inner region, and is a spherical surface that gradually decreases in a constant spherical or horizontal direction, and the central region connecting these inner and outer regions is the curvature at both boundaries.
  • the radius is equal to the radius of curvature connected to the inner and outer regions but is gradually changed between these boundaries.
  • the curvature that changes in the central region is presented as a curve design method in various ways in terms of synthesis of free optical surfaces, and it is a method of connecting two predetermined radiuses of curvature, which is progressive and there is no abrupt change in curvature.
  • the Bezier surface of degree (n, m) is given by the following equation.
  • the radius of curvature of the inner region forms a radius of curvature close to the plane so that the radius of curvature exceeds 1200 mm and ideally exceeds 1400 mm, and the radius of curvature of the outer region is less than 1200 mm to widen the field of view
  • the image distortion and astigmatism can be minimized, and the radius of curvature of the outer region should not be less than 400mm to ensure the continuity of the two curvatures.
  • 5 and 6 show changes in the eccentricity in the horizontal direction of the mirror unit according to the embodiment of the present invention.
  • Eccentricity is a mathematical term, commonly known as ecentricity (e), that indicates the degree of deviation from an ellipse in the case of an ellipse rather than a circle.
  • the eccentricity is constant in the inner region with a constant value such as "0", and in the outer region, it has a constant value as in the inner region or gradually changes unlike the inner region.
  • the eccentricity at both boundaries is the same at the boundary at the inner and outer regions and gradually changes between them.
  • This change can be changed to B-spline or by other similar methods, similar to the change in curvature radius described earlier.

Abstract

The present invention relates to a vehicle side mirror, and particularly, to a vehicle side mirror formed into an aspherical shape having multiple focal points, which maintains a viewing angle for a vehicle driver, while eliminating blind spots, distortion, and an inaccurate sense of distance that are represented by conventional vehicle side mirrors. The vehicle side mirror is divided into an inner region, an outer region, and a center region, wherein the radius of curvature and concentricity of each region are horizontally disposed. The inner region and outer region have respectively different radius of curvature and concentricity values, and the radius of curvature and concentricity of the center region are the same at both ends thereof as the radius of curvature and concentricity of the inner region and outer region and then gradually change.

Description

차량용 사이드 미러Car side mirrors
본 발명은 차량용 사이드 미러에 관한 것으로, 특히 차량용 사이드 미러를 비구면 다초점 형태로 형성하여 차량 운전자의 시야 각도가 유지되면서 차체로 인한 사각 지대, 차량용 사이드 미러를 통해 표시되는 상의 왜곡현상, 부정확한 거리감을 해소할 수 있도록 구성되는 차량용 사이드 미러에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side mirror for a vehicle. In particular, the side mirror of the vehicle is formed in an aspheric multifocal form to maintain a viewing angle of a vehicle driver, thereby causing distortion of an image displayed through a blind spot due to a vehicle body and an in-vehicle side mirror. It relates to a vehicle side mirror configured to eliminate the.
일반적으로, 차량에는 운전자가 좌우 및 후방 도로 상황을 용이하게 파악하여 감시하기 위하여, 좌, 우 프런트 도어 외측 또는 본네트 전방 좌, 우 및 차량 내부에는 미러가 장착되며, 미러의 장착 위치에 따라 룸미러, 사이드 미러라고 불린다. 즉, 차체의 운전석과 조수석에 인접한 좌, 우 프런트 도어 외측 또는 본네트 전방 좌, 우 지점에 위치한 미러를 사이드 미러라고 한다.In general, the vehicle is equipped with a mirror outside the left and right front doors or in front of the bonnet in front of the left and right front doors or the inside of the vehicle in order for the driver to easily identify the left and right road conditions and monitor the room mirror according to the mounting position of the mirror. It is called a side mirror. That is, the mirrors located outside the left and right front doors or the front left and right points of the bonnet adjacent to the driver's seat and the passenger seat of the vehicle body are called side mirrors.
운전자는 전방의 좌, 우측을 주시한 상태에서 사이드 미러를 통해 후방에서 주행하는 다른 차량의 주행 방향이나 속도 등을 인식할 수 있어, 운전자는 전후방의 차량과 안전거리를 유지할 수 있을 뿐아니라 후방에서 주행하는 타 차량의 운행을 방해하지 않고 안전하게 추월하거나 차선을 변경할 수 있다.The driver can recognize the driving direction and speed of other vehicles traveling behind the vehicle through the side mirror while keeping an eye on the front left and right, so that the driver can maintain the safety distance from the vehicle in front of and behind the vehicle. You can safely pass or change lanes without disturbing the driving of other vehicles.
이러한 사이드 미러는 원래 제작이 용이한 평면 형태의 미러가 구비되었으나, 차량 운전자의 시야 각도를 좀더 확보하여 운전자의 시야 범위를 These side mirrors were originally equipped with a flat mirror that is easy to manufacture, but to secure the viewing angle of the vehicle driver to further improve the driver's viewing range
크게 하기 위하여 볼록 형태의 미러가 구비되는 사이드 미러가 증가되고 있는 추세이나, 이러한 볼록 형태의 미러는 평면 형태에 비하여 시야 범위는 넓으나, 높은 축소 배율로 물체가 지나치게 작아보여 운전자의 판단을 흐리게 하는 경향이 있다. In order to increase the size of the side mirror with a convex mirror is increasing, but the convex mirror has a wider viewing range than the flat one, but at a high reduction factor, the object appears too small to obscure the driver's judgment. There is a tendency.
이러한 평면경 및 볼록경 사용으로 인한 좁은 시야범위 및 상의 과다한 축소 현상 등의 문제점을 해결하기 위하여 차량에 보조경을 더 장착하는 경우도 있으나, 보조경 설치 경계영역을 거치면서 상이 급격한 변화하여 오히려 운전자에게 완전한 후방 시야 감각을 주지 못하여, 후방의 물체의 크기가 일정하게 보이는 두 개의 영역을 광학적 왜곡을 최소화하면서 하나의 사이드미러로 표현할 필요가 있다. In order to solve problems such as narrow viewing range and excessive reduction of images due to the use of flat and convex mirrors, an auxiliary mirror may be further mounted on the vehicle. Since it does not give a full rearward view, two areas where the size of the rear object is constant need to be represented by one side mirror while minimizing optical distortion.
상기와 같은 문제점들을 해결하기 위한 방법으로서, 평면 형태의 미러와 볼록 형태의 미러가 함께 구비되는 사이드 미러에 대한 연구개발이 활발하게 진행되어 한국 등록실용신안공보 제20-0288548호에서는 전체적으로 평면 형태를 이루고 외측부가 볼록 형상의 곡률면이 형성되어 있는 자동차용 사이드 미러가 개시되어 있으며, 한국 등록실용신안공보 제20-0322014호에서는 전체적으로 평면 형태를 이루되 외측 단부가 굴곡되어 볼록 형태로 이루어지는 차동차용 사이드 미러가 개시되어 있다.As a method for solving the above problems, the research and development of the side mirror that is provided with a planar mirror and a convex mirror are actively progressed. A side mirror for a vehicle is disclosed, and the outer side is formed with a convex curvature surface, and in Korean Patent Application Publication No. 20-0322014, a differential side having a planar shape as a whole but having an outer end curved to have a convex shape. A mirror is disclosed.
그리고, 등록특허 10-0894432에는 사이드 미러의 미러부가 볼록한 형태의 누진 비구면형 볼록 미러가 형성되어 있으며, 등록특허 10-0867439에서는 적어도 3개의 비구면 누진다초점 영역이 수평방향을 따라 소정간격으로 구획되어 형성된 사이드 미러가 개시되어 있다.Further, Patent Document 10-0894432 discloses a progressive aspheric convex mirror having a convex mirror portion of a side mirror, and in Patent Document 10-0867439, at least three aspherical progressive focus regions are partitioned at predetermined intervals along a horizontal direction. The formed side mirror is disclosed.
그렇지만, 이러한 기술들은 사각지대의 해소를 위한 시야 확대와 상의 왜곡 방지를 위한 것이기는 하지만 운전자가 느끼는 광학적 감성에서 한계가 있으며, 서로 상이한 곡률반경 곡선을 연결하는 방법에 있어서 구체적인 해결책을 제시하지 못하고 있다. However, although these techniques are intended to expand the field of view and eliminate image distortion to eliminate blind spots, there are limitations in the optical sensitivity of the driver, and it does not provide a concrete solution in the method of connecting different curvature radius curves. .
따라서, 본 발명은 상술한 종래 기술들의 제반 문제점을 해결하고 서로 상이한 곡률반경을 가진 곡선과 이들 곡선을 연결하는 최적의 연결 곡선을 제공함으로써, 차량 주행 중에 운전자가 볼 수 없는 사각지대를 해소할 뿐아니라 난시를 조절함으로서 상의 왜곡현상과 부정확한 거리감을 최대한 해소하여 운전자가 실제와 유사한 편안함을 느낄 수 있도록 함에 그 목적이 있다.Accordingly, the present invention solves all the problems of the above-mentioned prior arts and provides a curve having different curvature radii and an optimum connection curve connecting these curves, thereby only eliminating blind spots that the driver cannot see while driving the vehicle. However, the purpose of the astigmatism is to adjust the astigmatism to solve the image distortion and inaccurate distance as much as possible so that the driver can feel the real comfort.
상기와 같은 과제를 해결하기 위하여, 본 발명에서는 내측영역과 외측영역 및 중앙영역으로 구분되어 각각의 곡률 반경과 편심율을 수평 방향으로 갖는 차량용 사이드 미러에 있어서, 내측영역과 외측영역의 곡률 반경과 편심율은 서로 다른 값을 가지며, 중앙영역의 양단의 곡률반경과 편심율은 내측영역과 외측영역의 곡률 반경과 편심율과 동일하면서 점진적으로 변화되는 것을 특징으로 하는 차량용 사이드 미러가 제공된다.In order to solve the above problems, in the present invention, in the side mirror for a vehicle divided into an inner region, an outer region, and a central region, each having a radius of curvature and an eccentricity in a horizontal direction, The eccentricity has different values, and the curvature radius and the eccentricity of both ends of the center region are equal to the radius of curvature and the eccentricity of the inner region and the outer region, and are gradually changed.
본 발명에 의한 차량용 사이드 미러는 차량 운전자의 넓은 시야 각도를 확보하면서 서로 다른 곡률 반경의 경계면에서의 연속성이 보장되어 난시를 조절하여 사각지대 해소와 더불어 상의 왜곡현상과 부정확한 거리감을 해소하여 차량 운전자가 실제와 유사한 편안함을 느낄수 있어 착시 현상 및 피로를 방지함으로써 교통사고를 예방할 수 있는 효과를 지니고 있다.The vehicle side mirror according to the present invention ensures a wide viewing angle of the vehicle driver while ensuring continuity at the boundary of different radii of curvature, thereby adjusting astigmatism, eliminating blind spots, eliminating image distortion and inaccurate distance. It can feel similar to real life, and it has the effect of preventing traffic accident by preventing optical illusion and fatigue.
도 1은 본 발명의 운전석의 차량용 사이드 미러1 is a vehicle side mirror of the driver's seat of the present invention
도 2는 본 발명의 차량용 사이드 미러의 미러부2 is a mirror unit of the vehicle side mirror of the present invention
도 3는 본 발명의 실시예에 따른 미러부의 수평 방향의 곡률 반경 변화도3 is a change in radius of curvature in the horizontal direction of the mirror portion according to an embodiment of the present invention
도 4는 본 발명의 다른 실시예에 따른 미러부의 수평 방향의 곡률 반경 변화도4 is a change in radius of curvature in the horizontal direction of the mirror portion according to another embodiment of the present invention
도 5는 본 발명의 실시예에 따른 미러부의 수평 방향의 편심율 변화도5 is a eccentricity change in the horizontal direction of the mirror unit according to an embodiment of the present invention
도 6는 본 발명의 다른 실시예에 따른 미러부의 수평 방향의 편심율 변화도6 is a change in eccentricity in the horizontal direction of the mirror unit according to another embodiment of the present invention
본 발명의 차량용 사이드미러는 내측영역과 외측영역 및 중앙영역으로 구분되어 각각의 곡률 반경과 편심율을 수평 방향으로 갖는 차량용 사이드 미러에 있어서, 내측영역과 외측영역의 곡률 반경과 편심율은 서로 다른 값을 가지며, 중앙영역의 양단의 곡률반경과 편심율은 내측영역과 외측영역의 곡률 반경과 편심율과 동일하면서 점진적으로 변화되는 것을 특징으로 한다. The vehicle side mirror of the present invention is divided into an inner region, an outer region, and a central region, and has a curvature radius and an eccentricity in a horizontal direction, and the curvature radius and the eccentricity of the inner region and the outer region are different from each other. It has a value, and the radius of curvature and the eccentricity at both ends of the central region are the same as the radius of curvature and the eccentricity of the inner region and the outer region, and is gradually changed.
본 발명에 의한 차량용 사이드 미러에 대하여 도면과 실시예를 참조하여 보다 구체적으로 설명하고자 한다. 실시예를 설명함에 있어서 본 발명의 핵심을 흐리지 않고 더욱 명확히 전달하기 위하여 본 발명이 속하는 기술 분야에 잘 알려져 있고 본 발명과 직접적으로 관련이 없는 기술 내용에 대해서는 가급적 설명을 생략한다.A vehicle side mirror according to the present invention will be described in more detail with reference to the drawings and the embodiments. In describing the embodiments, in order not to obscure the core of the present invention more clearly, descriptions of technical contents that are well known in the art to which the present invention pertains and are not directly related to the present invention are omitted.
도 1은 본 발명의 운전석의 차량용 사이드 미러를 도시한 것이고, 도 2는 도1의 차량용 사이드 미러의 미러부를 도시한 것이며, 도 3 및 도4는 본 발명의 실시 예에 따른 차량용 사이드 미러의 미러부의 수평 방향의 곡률 반경를 나타낸 일예이다.1 illustrates a vehicle side mirror of a driver's seat of the present invention, FIG. 2 illustrates a mirror portion of the vehicle side mirror of FIG. 1, and FIGS. 3 and 4 illustrate a mirror of a vehicle side mirror according to an embodiment of the present invention. It is an example showing the radius of curvature of the negative horizontal direction.
도 1 및 도2에서 나타낸 바와 같이 본 발명의 차량용 사이드 미러의 미러부는 수평방향으로 내측영역(A)과 외측영역(C) 및 중앙영역(B)으로 구분되어 각각의 곡률 반경을 가지는 영역으로 구분되며, 이러한 영역은 균등하게 3등분 될 수도 있지만 내측영역 : 중앙영역 : 외측영역이 6.5 : 1.5 : 2.5의 비율로 되어 내측영역의 영역이 전체 미러부의 반을 넘도록 하면서 상의 왜곡 현상과 부정확한 거리감을 해소할 수 있도록 하였으며, 외측영역의 영역은 비구면 또는 구면으로 하여 난시를 크게 하여 시야의 확대에 따른 사각지대의 해소에 주안점을 두었다.As shown in FIGS. 1 and 2, the mirror part of the vehicle side mirror of the present invention is divided into an inner region A, an outer region C, and a central region B in a horizontal direction, and is divided into regions having respective curvature radii. This area may be equally divided into three parts, but the inner area: center area: outer area has a ratio of 6.5: 1.5: 2.5 so that the area of the inner area exceeds half of the entire mirror part, and the image distortion and the inaccurate distance are sensed. The area of the outer area was aspherical or spherical, and the astigmatism was enlarged to focus on the elimination of blind spots due to the enlarged field of view.
한편, 도3 및 도4에서 나타낸 바와 같이 내측영역의 곡률 반경은 미러부의 수평방향의 중간까지는 점진적으로 증가하다가 중간부에서 최대값을 가지며 이를 지나게 되면 내측영역이 끝나는 부분까지는 점진적으로 감소하는 비구면의 양상을 나타내며 이러한 곡률반경의 변화폭은 곡률반경의 최대값의 12.5% 이내로 이루어진다.3 and 4, the radius of curvature of the inner region gradually increases up to the middle of the horizontal direction of the mirror portion, and has a maximum value at the middle portion thereof. The variation of the radius of curvature is within 12.5% of the maximum value of the radius of curvature.
그리고 외측영역의 곡률반경은 내측영역의 곡률 반경에 비하여 아주 작은 값을 가지며 일정한 구면이거나 수평방향으로 점진적으로 감소하게 되는 비구면이고, 이들 내측영역과 외측영역을 연결하는 중앙영역은 양쪽 경계에서의 곡률 반경은 내측영역과 외측영역에 연결되는 곡률 반경과 동일하나 이들 경계 사이에서는 점진적으로 변화되게 된다.The radius of curvature of the outer region is very small compared to the radius of curvature of the inner region, and is a spherical surface that gradually decreases in a constant spherical or horizontal direction, and the central region connecting these inner and outer regions is the curvature at both boundaries. The radius is equal to the radius of curvature connected to the inner and outer regions but is gradually changed between these boundaries.
중앙영역에서 변화되는 곡률은 자유 광학 곡면의 합성이라는 측면에서 다양한 방법으로 곡선 설계 방법으로 제시되며, 그 중에 두개의 정해진 곡률 반경을 연결하는 방법으로서 누진적이고 곡률의 급격한 변화가 없는 것으로 B-spline 곡선 등에 의해 표현 가능하며, 예를 들어 차수(n,m)의 Bezier 곡면은 다음식으로 주어진다.The curvature that changes in the central region is presented as a curve design method in various ways in terms of synthesis of free optical surfaces, and it is a method of connecting two predetermined radiuses of curvature, which is progressive and there is no abrupt change in curvature. For example, the Bezier surface of degree (n, m) is given by the following equation.
Figure PCTKR2011001266-appb-I000001
Figure PCTKR2011001266-appb-I000001
여기서, P(i,j)는 조정점(control points)이고, Bernstein polynomial은 다음과 같다.Where P (i, j) is the control point and Bernstein polynomial is
Figure PCTKR2011001266-appb-I000002
Figure PCTKR2011001266-appb-I000002
한편, 내측영역의 곡률 반경은 평면에 가깝도록 곡률 반경을 형성하여 곡률 반경이 1200 mm를 넘도록 하며 이상적으로는 1400 mm를 넘도록 하고, 외측영역의 곡률 반경은 1200 mm 보다 적도록 함으로써 시야를 넓혀 사각지대를 없도록 할 뿐 아니라 상의 왜곡과 난시를 최소화 할 수 있도록 하였으며, 두 곡률의 연속성을 보장하기 위하여 외측영역 곡률 반경은 400mm 보다 적지 않아야 한다.On the other hand, the radius of curvature of the inner region forms a radius of curvature close to the plane so that the radius of curvature exceeds 1200 mm and ideally exceeds 1400 mm, and the radius of curvature of the outer region is less than 1200 mm to widen the field of view In addition to eliminating the zone, the image distortion and astigmatism can be minimized, and the radius of curvature of the outer region should not be less than 400mm to ensure the continuity of the two curvatures.
또한, 도 5와 도6은 본 발명의 실시예에 따른 미러부의 수평 방향의 편심율 변화를 나타내고 있다.5 and 6 show changes in the eccentricity in the horizontal direction of the mirror unit according to the embodiment of the present invention.
여기서 사용되는 편심율은 일반적으로 ecentricity(e)로 알려져 있는 수학적 용어로서 원이 아닌 타원의 경우에 있어서 타원의 원에서 벗어난 정도를 표시한다.Eccentricity, as used here, is a mathematical term, commonly known as ecentricity (e), that indicates the degree of deviation from an ellipse in the case of an ellipse rather than a circle.
즉, 타원의 긴 반경(a)와 짧은 반경(b)를 알고 있을 때 편심율(e)은
Figure PCTKR2011001266-appb-I000003
로 정의되어 원이면 0, 타원이면 1보다 적은 값을 가지게 되는 것이므로 0 <= e < 1 의 값을 가지게 된다.That is, when the long radius (a) and the short radius (b) of the ellipse are known, the eccentricity e is
Figure PCTKR2011001266-appb-I000003
It is defined as 0, and if it is an ellipse, it has a value less than 1, so it has a value of 0 <= e <1.
이러한 편심율의 개념이 렌즈나 거울 등과 같은 광학 기기에 적용되게 되면, 편심율이 변하게 되면 물체의 수평, 수직 배율이 변화되게 되는 것이다.When the concept of the eccentricity is applied to an optical device such as a lens or a mirror, when the eccentricity is changed, the horizontal and vertical magnification of the object is changed.
이들 편심율의 변화에 대해서 살펴보면 내측영역에서는 편심율이 "0"과 같은 일정한 값을 가져 일정하며 외측영역에서도 내측영역과 마찬가지로 일정한 값을 가지거나 내측 영역과 달리 점진적으로 변화되게 되고, 이들 내측영역과 외측영역을 연결하는 중앙영역에서는 양쪽 경계에서는 편심율이 내측영역과 외측영역에서의 경계에서는 동일하고 이들 사이에서는 점진적으로 변화하게 된다.As for the changes in the eccentricity ratio, the eccentricity is constant in the inner region with a constant value such as "0", and in the outer region, it has a constant value as in the inner region or gradually changes unlike the inner region. In the central region connecting the outer and outer regions, the eccentricity at both boundaries is the same at the boundary at the inner and outer regions and gradually changes between them.
이러한 변화는 앞에서 설명한 곡률반경의 변화와 동일하게 B-spline으로 변화되거나 다른 유사한 방법들에 의해서 변화된다. This change can be changed to B-spline or by other similar methods, similar to the change in curvature radius described earlier.

Claims (5)

  1. 내측영역과 외측영역 및 중앙영역으로 구분되어 각각의 곡률 반경과 편심율을 수평 방향으로 갖는 차량용 사이드 미러에 있어서,In a side mirror for a vehicle divided into an inner region, an outer region, and a central region, each having a radius of curvature and an eccentricity in a horizontal direction,
    내측영역과 외측영역의 곡률 반경과 편심율은 서로 다른 값을 가지며, 중앙영역의 양단의 곡률반경과 편심율은 내측영역과 외측영역의 곡률 반경과 편심율과 동일하면서 점진적으로 변화되는 것을 특징으로 하는 차량용 사이드 미러.The radius of curvature and the eccentricity of the inner and outer regions have different values, and the radius of curvature and the eccentricity of the ends of the center region are the same as those of the inner and outer regions, and gradually change. Car side mirror.
  2. 제1항에 있어서,The method of claim 1,
    상기 내측영역과 상기 외측영역의 곡률 반경은 점진적으로 변화되는 것을 특징으로 하는 차량용 사이드 미러.And a radius of curvature of the inner region and the outer region is gradually changed.
  3. 제1항에 있어서,The method of claim 1,
    상기 내측영역의 곡률 반경은 점진적으로 변화되며 외측영역의 곡률반경은 일정한 값을 가지는 것을 특징으로 하는 차량용 사이드 미러.The radius of curvature of the inner region is gradually changed and the radius of curvature of the outer region has a constant value.
  4. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3,
    상기 편심율은 내측영역과 외측영역에서 서로 다른 일정한 값을 가지는 것을 특징으로 하는 차량용 사이드 미러.The eccentricity is a vehicle side mirror characterized in that it has a different constant value in the inner region and the outer region.
  5. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3,
    상기 편심율은 내측영역에서는 일정한 값이며, 외측영역에서는 점진적으로 변화되는 값을 가지는 것을 특징으로 하는 차량용 사이드 미러.The eccentricity is a constant value in the inner region, the vehicle side mirror, characterized in that it has a value that gradually changes in the outer region.
PCT/KR2011/001266 2010-07-30 2011-02-23 Vehicle side mirror WO2012015134A1 (en)

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KR101288954B1 (en) * 2011-08-31 2013-07-22 한밭대학교 산학협력단 A progressive addition side mirror
KR101517172B1 (en) * 2014-03-04 2015-05-04 주식회사 불스원 Side mirror for vehicle
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JPH07300045A (en) * 1994-05-06 1995-11-14 Hiroshi Kondo Mirror for automobile
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US9381862B2 (en) 2010-10-25 2016-07-05 Gentex Corporation Optical reflector with increased field-of-view

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