KR0181246B1 - Rear lamp lens - Google Patents

Rear lamp lens Download PDF

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Publication number
KR0181246B1
KR0181246B1 KR1019960048664A KR19960048664A KR0181246B1 KR 0181246 B1 KR0181246 B1 KR 0181246B1 KR 1019960048664 A KR1019960048664 A KR 1019960048664A KR 19960048664 A KR19960048664 A KR 19960048664A KR 0181246 B1 KR0181246 B1 KR 0181246B1
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KR
South Korea
Prior art keywords
lens
present
distance
hot zone
cut
Prior art date
Application number
KR1019960048664A
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Korean (ko)
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KR19980029409A (en
Inventor
박석규
Original Assignee
현대자동차주식회사
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Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1019960048664A priority Critical patent/KR0181246B1/en
Publication of KR19980029409A publication Critical patent/KR19980029409A/en
Application granted granted Critical
Publication of KR0181246B1 publication Critical patent/KR0181246B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • B60Q1/22—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 for reverse drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes

Abstract

본 발명은 승용차의 주차거리 확인용 후진등 렌즈에 관한 것으로, 특히 본 발명은 야간에 차량이 주차를 위해 후진할 때 일정한 안전주차거리에 도달하였는가를 눈으로 식별할 수 있도록 하기 위하여, 일정한 거리에서 광축과 평행한 축선상의 투영면에 일정한 상의 핫 존(6)이 형성되도록 렌즈(3) 내면의 일측에 수직방향으로 대칭인 프리즘 컷(5)을 형성시킨 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlit lens for checking the parking distance of a passenger car. More particularly, the present invention relates to a backlit lens for checking the parking distance of a passenger car, And a prism cut 5 symmetrical in the vertical direction is formed on one side of the inner surface of the lens 3 so that a hot zone 6 having a constant phase is formed on an axial projection surface parallel to the optical axis.

Description

주차거리확인용 후진등 렌즈Lens for checking parking distance

본 발명은 자동차, 특히 승용차의 주차거리확인용 후진등 렌즈(Back Up Lamp Lens for Checking Parking Interval)에 관한 것이다.BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a back up lamp lens for a parking space for a car, particularly a passenger car.

일반적으로 승용차 뒤에 설치되는 후진등은 렌즈 내면 전체에 어안 컷을 형성시켜 벌브의 광이 θ각을 가지고 확산되어 나가도록 하고 있다.Generally, the backlight provided behind the passenger car forms a fisheye cut on the entire inner surface of the lens so that the light of the bulb spreads with the angle of?.

차량이 야간에 후진하는 경우에, 차량 후방의 지면에 어떠한 장애물이 있는가를 보다 확연하게 식별시킬 필요가 있기 때문에 이를 보완 하는 하나의 수단으로서, 종래에는 렌즈의 내면에 프리즘 컷을 사용하여 주광축을 하향시키도록 하고 있었다.In order to compensate for this, it is necessary to use a prism cut on the inner surface of the lens so as to lower the main optical axis .

그러나, 상기와 같이 주광축만을 하향으로 하는 경우에는 넓은 범위에서의 핫 존(0Hot Zone)이 지면에 그려지기만 할 뿐, 주차시 차량 뒤에 벽이 있을 경우, 실질적으로 벽과의 안전한 거리가 얼마나 되는지는 빛에 의해서 전혀 식별할 수 없었던 것이다.However, when only the main optical axis is downward as described above, only a hot zone in a wide range is drawn on the ground, and when there is a wall behind the vehicle at the time of parking, Could not be identified at all by light.

본 발명의 목적은 야간에 차량이 주차를 위해 후진할 때 일정한 안전주차거리에 도달하였는가를 눈으로 식별할 수 있는 후진등의 렌즈를 제공하는데 있는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a back-up lens which can visually discriminate whether a certain safe parking distance is reached when a vehicle is backed up for parking at night.

도 1은 본 발명의 실시예의 후진등 단면도.1 is a back-up isometric view of an embodiment of the present invention;

도 2는 본 발명의 프리즘 컷(Prism Cut) 부분을 나타낸 확대 횡단면도.2 is an enlarged cross-sectional view showing a prism cut portion of the present invention.

도 3은 본 발명에 의한 핫 존(Hot Zone)의 생성 특성도.FIG. 3 is a graph showing generation characteristics of a hot zone according to the present invention. FIG.

* 도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS

1 : 벌브, 2 : 하우징, 3 : 렌즈, 4 : 어안 컷, 5 : 프리즘 컷, 6 : 프리즘 컷, θ : 광각(어안 컷에 의한 렌즈 전체), θ' : 광각(프리즘 컷 부분)1: bulb, 2: housing, 3: lens, 4: fisheye cut, 5: prism cut, 6: prism cut, θ: wide angle (full lens by fisheye cut)

본 발명은 상기 목적을 달성하기 위하여, 일정한 거리에서 광축과 평행한 축선상의 투영면에 일정한 상의 핫 존이 형성되도록 내면의 일측에 수직방향으로 대칭인 프리즘 컷을 형성시킨 것이다.In order to achieve the above object, a prism cut which is symmetrical in a vertical direction is formed on one side of an inner surface so that a hot zone of a certain phase is formed on a projection plane on an axis parallel to an optical axis at a certain distance.

본 발명은 상기와 같은 구성에 따라, 차량이 후진할 때 일정한 거리에 도달하면 후방의 벽면(투영면)에 선명한 핫 존이 형성되므로 운전자는 이 지점이 안전주차 거리임을 인식하게 되는 것이다.According to the present invention, when the vehicle reaches a certain distance when the vehicle is reversed, a clear hot zone is formed on the rear wall surface (projection plane), so that the driver recognizes that this point is the safe parking distance.

이하, 본 발명의 실시예를 첨부된 도면에 의하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 의한 후진등을 나타낸 것으로서, 벌브(1)를 갖는 반사기(2)의 전방에 있는 렌즈(3)는 내면이 일부를 제외한 전구간에 걸쳐 어안 컷(4)을 형성하고 있고, 우측의 일부에 수직방향으로 작은 프리즘 컷(5)이 형성되어 있다.Fig. 1 shows a backlight according to the present invention. A lens 3 in front of a reflector 2 having a bulb 1 forms a fisheye cut 4 on the entire inner surface excluding a part, And a small prism cut 5 is formed in a part of the right side in the vertical direction.

상기 어안 컷(4)에 의한 배광은 광각θ의 범위 내에서 확산되고, 프리즘 컷(5)에 의한 배광은 A부분과 같이 부분적으로 집중되는 특성을 갖는다.The light distribution by the fisheye cut 4 is diffused within the range of the wide angle θ and the light distribution by the prism cut 5 is partially concentrated like the portion A.

상기 프리즘 컷(5)은 도 2와 같이 벌브(1)에 의한 광축과 평행한 축선상에 광축이 주어지도록 한 것으로, 벽이 그 대상인 투영면에 일정한 상(예: 도 3과 같은 직사각형)의 핫 존(6)이 선명하게 투영되도록 형성된다. 상기 핫 존(6)의 크기는 예컨데 약 3×5㎝ 또는 5×5㎝ 정도의 것이면 바람직하다고 볼 수 있다.As shown in Fig. 2, the prism cut 5 is provided with an optical axis on an axis parallel to the optical axis by the bulb 1. The prism cut 5 has a fixed image (e.g., a rectangle as shown in Fig. 3) So that the zone 6 is projected clearly. The size of the hot zone 6 may be about 3 x 5 cm or about 5 x 5 cm, for example.

본 발명에서는 이러한 핫 존(6)의 크기를 한정하는 것은 아니다.The size of the hot zone 6 is not limited in the present invention.

그리고, 광각θ'는 안전주차거리와 관계한다. 따라서, 프리즘 컷(5)은 렌즈(3)의 내면 일측에서 수직방향으로 대칭이 되도록 형성시켜야 하는 것이다.And, the wide angle θ 'relates to the safe parking distance. Therefore, the prism cut 5 should be formed so as to be symmetrical in the vertical direction at one side of the inner surface of the lens 3. [

도 3은 후진등이 야간에 비출 때 임의의 어떤 투영면에 나타나는 핫 존과 안전주차거리와의 관계를 나타낸 것으로, 원래 주어진 안전주차거리 L0에 있을 때에는 핫 존(6)이 투영면에 선명하고 뚜렷하게 나타나지만, 안전주차거리 L0보다 짧은 거리 L1이나 먼 거리 L2에 있을 때에는 핫 존(6')(6)이 투영면에 서로 어긋나게 나타나 불선명하고 뚜렷하지 않게 되는 것이다.FIG. 3 shows the relationship between the hot zone and the safe parking distance at any given projection plane when the back light is illuminated at night. When the safety parking distance L 0 is at a given safety parking distance L 0 , the hot zone 6 is clearly and clearly However, when the distance L 1 is shorter than the safe parking distance L 0 or the distance L 2 is longer than the safe parking distance L 0 , the hot zones 6 'and 6 are displaced from each other on the projection plane.

따라서, 차량이 후진할 때 일정한 거리, 즉 안전주차거리에 도달하면 후방의 벽면(투영면)에 선명한 핫 존(6)이 형성되므로 운전자는 이 지점이 안전주차거리임을 인식하여 그 지점에서 차량을 멈추고 주차시키면 되는 것이다.Therefore, when the vehicle reaches a certain distance, that is, the safe parking distance when the vehicle is backward, a clear hot zone 6 is formed on the rear wall surface (projection plane) so that the driver recognizes that this point is the safe parking distance, You can park it.

이와 같은 본 발명은 야간에 차량이 주차를 위해 후진할 때 일정한 안전주차거리에 도달하였는가를 눈으로 식별할 수 있어 항상 정확한 주차를 할 수 있는 효과가 있는 것이다.The present invention can discriminate whether the vehicle has reached a certain safe parking distance when the vehicle is backed up for parking at night, thereby enabling accurate parking.

Claims (1)

일정한 거리에서 광축과 평행한 축선상의 투영면에 일정한 상의 핫 존이 형성되도록 내면의 일측에 수직방향으로 대칭인 프리즘 컷을 형성시킨 것을 특징으로 하는 주차거리확인용 후진등 렌즈.Wherein a prism cut that is symmetrical in the vertical direction is formed on one side of the inner surface so that a hot zone of a predetermined phase is formed on a projection plane on an axis parallel to the optical axis at a constant distance.
KR1019960048664A 1996-10-25 1996-10-25 Rear lamp lens KR0181246B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960048664A KR0181246B1 (en) 1996-10-25 1996-10-25 Rear lamp lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960048664A KR0181246B1 (en) 1996-10-25 1996-10-25 Rear lamp lens

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KR19980029409A KR19980029409A (en) 1998-07-25
KR0181246B1 true KR0181246B1 (en) 1999-04-01

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KR1019960048664A KR0181246B1 (en) 1996-10-25 1996-10-25 Rear lamp lens

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210083037A (en) 2019-12-26 2021-07-06 현대모비스 주식회사 Lamp device for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210083037A (en) 2019-12-26 2021-07-06 현대모비스 주식회사 Lamp device for vehicle
US11371672B2 (en) 2019-12-26 2022-06-28 Hyundai Mobis Co., Ltd. Lamp device for vehicle

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Publication number Publication date
KR19980029409A (en) 1998-07-25

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