KR0167952B1 - Automatic swing apparatus of room mirror for a vehicle - Google Patents

Automatic swing apparatus of room mirror for a vehicle Download PDF

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Publication number
KR0167952B1
KR0167952B1 KR1019950063085A KR19950063085A KR0167952B1 KR 0167952 B1 KR0167952 B1 KR 0167952B1 KR 1019950063085 A KR1019950063085 A KR 1019950063085A KR 19950063085 A KR19950063085 A KR 19950063085A KR 0167952 B1 KR0167952 B1 KR 0167952B1
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KR
South Korea
Prior art keywords
light
room mirror
turned
output
vehicle
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KR1019950063085A
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Korean (ko)
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KR970038177A (en
Inventor
김용희
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김태구
대우자동차주식회사
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Priority to KR1019950063085A priority Critical patent/KR0167952B1/en
Publication of KR970038177A publication Critical patent/KR970038177A/en
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Publication of KR0167952B1 publication Critical patent/KR0167952B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical 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
    • B60R1/02Rear-view mirror arrangements
    • B60R1/08Rear-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
    • B60R1/083Anti-glare mirrors, e.g. "day-night" mirrors
    • B60R1/086Anti-glare mirrors, e.g. "day-night" mirrors using a mirror angularly movable between a position of use and a non-glare position reflecting a dark field to the user, e.g. situated behind a transparent glass used as low-reflecting surface; Wedge-shaped mirrors
    • B60R1/087Anti-glare mirrors, e.g. "day-night" mirrors using a mirror angularly movable between a position of use and a non-glare position reflecting a dark field to the user, e.g. situated behind a transparent glass used as low-reflecting surface; Wedge-shaped mirrors with remote or automatic control means

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

본 발명은 룸미러를 보통면과 코팅면으로 구성하여 야간에 후방차량으로부터 입사되는 헤드라이트 빛이 일정치를 넘을 때 자동적으로 보통면에서 코팅면으로 회전될 수 있도록 한 차량의 룸미러 자동 회전장치에 관한 것으로, 빛의 밝기에 따라 빛이 밝으면 저항치가 작아지고 빛이 어두우면 저항치가 커지는 변하는 빛센서인 황화 카드뮴(S1)과 상기 황화 카드뮴(S1)의 출력전압과 기준전압(REF)을 비교하여 해당되는 레벨을 출력시키는 비교기(COM)와, 상기 비교기(COM)의 출력이 하이레벨일 때 온되고 로우레벨일 때 오프되는 포토 커플러(PC)와, 상기 포토 커플러(PC)가 온될 때 룸미러를 코팅면으로 회전시키는 모터(M)로 이루어진다.The present invention comprises a room mirror auto-rotating device of the vehicle to be rotated from the normal surface to the coating surface automatically when the headlight light incident from the rear vehicle at night exceeds a predetermined value by configuring the room mirror to the normal surface According to the present invention, the output voltage and reference voltage (REF) of the cadmium sulfide (S1) and the cadmium sulfide (S1), which are light sensors that vary in resistance when the light is bright and the resistance increases when the light is dark, are increased according to the brightness of the light. The comparator COM for outputting the corresponding level by comparison, the photo coupler PC which is turned on when the output of the comparator COM is high level and turned off when the output level of the comparator COM is low, and when the photo coupler PC is turned on. It consists of a motor (M) for rotating the room mirror to the coating surface.

Description

차량의 룸미러 자동 회전장치Room mirror auto rotator

제1도는 본 발명의 회로도.1 is a circuit diagram of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

S1 : 황화 카드뮴 COM : 비교기S1: Cadmium Sulfide COM: Comparator

PC : 포토 커플러 M : 모터PC: Photo Coupler M: Motor

본 발명은 차량의 룸미러에 관한 것으로, 특히 룸미러를 보통면과 코팅면으로 구성하여 야간에 후방차량으로부터 입사되는 헤드라이트 빛이 일정치를 넘을 때 자동적으로 보통면에서 코팅면으로 회전될 수 있도록 한 차량의 룸미러 자동 회전장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a room mirror of a vehicle, and in particular, the room mirror is composed of a normal surface and a coated surface, so that when the headlight light incident from the rear vehicle at night exceeds a predetermined value, it can be automatically rotated from the normal surface to the coated surface. To a vehicle's room mirror autorotator.

일반적인 차량에 있어서는 룸미러가 보통의 거울로 이루어져 있어, 야간에 후방차량의 헤드라이트 빛이 반사되면 시야의 방해를 받게 되며, 이때 빛을 흡수하여 시야의 방해를 받지 않기 위한 수단으로 코팅된 룸미러를 사용하기도 한다.In a typical vehicle, the room mirror is made of a common mirror, and when the headlights of the rear vehicle are reflected at night, the view is obstructed. At this time, the room mirror is coated as a means for absorbing the light and not obstructing the view. Also used.

그러나, 상기와 같은 종래 차량의 룸미러에 있어서는, 보통면이나 코팅면중 어느 하나로만 이루어져 있어 필요에 따라 적절히 변경시켜 사용할 수 없는 불편함이 있었다.However, in the above-described conventional room mirror of a vehicle, there is an inconvenience in that it is made of only one of a normal surface and a coated surface, and cannot be used properly changed as necessary.

본 발명은 이와같은 종래의 결점을 해결하기 위한 것으로, 광센서를 사용하여 야간에 후방 차량의 헤드라이트 빛이 일정치를 넘으면 자동적으로 보통면에서 코팅면으로 회전될 수 있게 하는 차량의 룸미러 자동 회전장치를 제공하는데 그 목적이 있다.The present invention is to solve the above-mentioned drawbacks, the vehicle's room mirror auto-rotating to allow the headlight light of the rear vehicle at night to automatically rotate from the normal surface to the coating surface by using a light sensor The purpose is to provide a rotating device.

이와같은 목적을 달성하기 위한 본 발명은, 빛의 밝기에 따라 저항치가 변하는 빛센서와, 상기 빛센서의 출력전압과 기준전압을 비교하여 해당되는 레벨을 출력시키는 비교기와, 상기 비교기의 출력에 따라 동작되는 포토 커플러와, 상기 포토 커플러가 온될 때 룸미러를 회전시키는 모터를 포함하여 구성함을 특징으로 한다.In order to achieve the above object, the present invention provides a light sensor whose resistance is changed according to the brightness of light, a comparator for comparing the output voltage and the reference voltage of the light sensor and outputting a corresponding level, according to the output of the comparator. And a motor for rotating the room mirror when the photo coupler is operated and the photo coupler is turned on.

이하, 본 발명 차량의 룸미러 자동 회전장치의 실시예를 첨부된 도면을 참고로 하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings an embodiment of the room mirror automatic rotating apparatus of the present invention will be described in detail as follows.

제1도는 본 발명의 회로도로, 빛의 밝기에 따라 빛이 밝으면 저항치가 작아지고 빛이 어두우면 저항치가 커지는 변하는 빛센서인 황화 카드뮴(S1)과, 상기 황화 카드뮴(S1)의 출력전압과 기준전압(REF)을 비교하여 해당되는 레벨을 출력시키는 비교기 (COM)와, 상기 비교기(COM)의 출력이 하이레벨일 때 온되고 로우레벨일 때 오프되는 포토 다이오드 및 포토 트랜지스터로 된 포토 커플러(PC)와, 상기 포토 커플러(PC)가 온될 때 룸미러를 회전시키는 모터(M)로 구성된 것이다.FIG. 1 is a circuit diagram of the present invention, in which light resistance is reduced according to the brightness of light, the resistance value decreases, and the resistance value increases when the light is dark, and cadmium sulfide (S1) and the output voltage of the cadmium sulfide (S1) A comparator COM for comparing a reference voltage REF and outputting a corresponding level, and a photo coupler including a photodiode and a photo transistor, which are on when the output of the comparator COM is high and off when the output of the comparator COM is low. PC) and a motor M for rotating the room mirror when the photo coupler PC is turned on.

이와같이 구성된 본 발명은, 야간에 후방에서 헤드라이트 빛이 비추지 않아 룸미러에 빛이 들어오지 않을 경우에는 황화 카드뮴(S1)의 저항값이 커져 전압의 드롭(DRO)이 많아지므로 비교기(COM)의 출력은 로우레벨이 되어 포토 커플러(PC)가 오프되고, 이에 따라 모터(M)는 구동되지 않아 보통면으로 사용하게 된다.According to the present invention configured as described above, when the headlight light does not shine in the rear at night, the resistance value of cadmium sulfide (S1) is increased to increase the drop of voltage (DRO) of the comparator (COM). The output is at a low level and the photo coupler PC is turned off. As a result, the motor M is not driven and is used as a normal surface.

그러나, 후방에서 헤드라이트 빛이 비추어 룸미러에 빛이 반사될 경우 황화 카드뮴(S1)의 저항값이 작아지므로 전압 드롭이 작아져 비교기(COM)에 입력되는 전압은 기준전압(REF)보다 커진다.However, when the headlight light is reflected from the rear and the light is reflected to the room mirror, the resistance value of the cadmium sulfide (S1) is reduced, so that the voltage drop is smaller and the voltage input to the comparator COM is greater than the reference voltage REF.

따라서, 비교기(COM)의 출력은 하이레벨이 되어 포토 커플러(PC)가 온되므로 모터(M)가 구동하여 룸미러가 코팅면으로 회전된다.Therefore, since the output of the comparator COM is at a high level and the photo coupler PC is turned on, the motor M is driven to rotate the room mirror to the coating surface.

이상에서 설명한 바와같은 본 발명은, 룸미러를 보통면과 코팅면의 양면으로 구성하여 야간에 후방에서 헤드라이트가 비출때 자동적으로 코팅면으로 회전되게 하여 시야의 방해를 받지 않게 할 수 있는 효과가 있다.The present invention as described above, the room mirror is composed of both sides of the normal surface and the coating surface has the effect that the headlights are automatically rotated to the coating surface when the headlight shines from the rear at night, so as not to interfere with the field of view have.

Claims (1)

자동차용 백미러에 있어서, 빛의 밝기에 따라 빛이 밝으면 저항치가 작아지고 빛이 어두우면 저항치가 커지는 변하는 빛센서인 황화 카드뮴(S1)과, 상기 황화 카드뮴(S1)을 통해 인가되는 출력전압과 기준전압(REF)을 비교하여 해당되는 레벨을 출력시키는 비교기(COM)와, 상기 비교기(COM)의 출력이 하이레벨일 때 온되고 로우레벨일 때 오프되는 포토 커플러(PC)와, 상기 포토 커플러(PC)가 온될 때 룸미러를 코팅면으로 회전시키는 모터(M)로 구성된 것을 특징으로 하는 차량의 룸미러 자동 회전장치.In the rearview mirror for automobiles, cadmium sulfide (S1), which is a light sensor that changes resistance when the light is bright according to the brightness of the light, and increases the resistance when the light is dark, and the output voltage applied through the cadmium sulfide (S1) A comparator COM for comparing a reference voltage REF and outputting a corresponding level, a photo coupler PC that is turned on when the output of the comparator COM is high and off when the output of the comparator COM is high, and the photo coupler And a motor (M) for rotating the room mirror to the coating surface when the PC is turned on.
KR1019950063085A 1995-12-29 1995-12-29 Automatic swing apparatus of room mirror for a vehicle KR0167952B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950063085A KR0167952B1 (en) 1995-12-29 1995-12-29 Automatic swing apparatus of room mirror for a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950063085A KR0167952B1 (en) 1995-12-29 1995-12-29 Automatic swing apparatus of room mirror for a vehicle

Publications (2)

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KR970038177A KR970038177A (en) 1997-07-24
KR0167952B1 true KR0167952B1 (en) 1999-02-01

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KR1019950063085A KR0167952B1 (en) 1995-12-29 1995-12-29 Automatic swing apparatus of room mirror for a vehicle

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7571041B2 (en) * 2005-01-13 2009-08-04 General Motors Corporation Automatic control of automotive rearview mirror

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