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Vehicle lamp

A technology for vehicle lights and vehicles in front, which is applied to headlights, vehicle parts, lighting and heating equipment, etc., and can solve problems such as blinding, incoordination, and inability to eliminate

Inactive Publication Date: 2009-05-06
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the technology of Patent Document 1, although the visibility of the driver of the own vehicle at a distance can be improved by the illumination of the passing light beam, the above-mentioned discomfort felt by the driver of the own vehicle that exists when switching the driving light beam and the passing light beam cannot be eliminated. sense, or does not solve the problem of reliably preventing dazzle to other vehicle occupants
In addition, according to the technology of Patent Document 2, although when the traveling light beam and the passing light beam are irradiated to other vehicles separately, it is possible to prevent the driver of other vehicles from being dazzled and to perform appropriate lighting, but there is no solution to the problem of switching the traveling light beam and the passing light beam. The driver's sense of incongruity when the wrong beam exists, or the problem of dazzling the driver of other vehicles

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0033] Next, Embodiment 1 of the present invention will be described. figure 1 It is a diagram showing the overall structure. The left and right headlamps LHL, RHL are connected to the lighting control device ECU, and the light switch LSW and the beam switch (dimmer switch ( ディマ一スイッチ)) BSW. The beam switch BSW switches the driving beam (high beam) and the passing beam (low beam) of the respective headlights LHL, RHL. In addition, a front vehicle detection device FMD for detecting other vehicles such as an oncoming vehicle or a preceding vehicle existing in the area in front of the vehicle is provided at the front part of the vehicle (not shown in the figure), and the above-mentioned switch is activated based on the detection output of the front vehicle detection device FMD. The lamp control unit ECU is capable of controlling turning on of the above-mentioned headlamps LHL, RHL.

[0034] The above-mentioned left and right headlamps LHL, RHL have a so-called 4-lamp structure in...

Embodiment 2

[0043] In Embodiment 1, the passing beam and the running beam are switched by the beam switch BSW operated by the driver, but in Embodiment 2, the passing beam and the running beam are switched based on the detection output of the preceding vehicle detection device FMD. switch. Such as Figure 6 As shown in the flow chart, if the light switch LSW is turned on (S21), the wrong vehicle beam lights RLBL, LLBH are turned on (S22). In this state, the front vehicle detection device FMD detects, for example, the preceding vehicle, and detects the inter-vehicle distance between the own vehicle and the preceding vehicle. When the inter-vehicle distance is smaller than the first prescribed distance, the light-on control device ECU only turns on the light for the wrong-way beam light, but does not turn on the light for the running light beam. That is, becomes as Figure 5 (a) Illumination of the light distribution pattern LBP of the passing beam shown in (a). When the inter-vehicle d...

Embodiment 3

[0047] Fig. 7 is a schematic configuration diagram of a running beam lamp RHBL (LHBL) according to the third embodiment. This lamp is configured as a projection lamp, and its structure includes: a reflector 21 formed into a substantially spheroidal shape, a cylindrical bracket 22 installed on the front opening of the reflector 21, and a front surface of the bracket 22. Condenser lens 23 with opening. Inside the reflecting mirror 21, there is a single H light source 24 composed of a light bulb arranged at the first focal point of the reflecting mirror 21. As shown in FIG. The condensing lens 23 is configured as a convex lens, and its position is adjusted in the front-rear direction within a predetermined length range along the light axis Lx by the slide mechanism 25 provided on the bracket 22 as shown by the arrow in FIG. 7 . Above-mentioned slide mechanism 25 passes as figure 1 The illustrated turn-on control device ECU controls the position of the condenser lens 23 accordin...

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Abstract

A vehicle lamp (LHL,RHL) is arranged to switch between a low beam and a high beam. The high beam illuminates a first illumination area (SA1), which lies ahead of and square to a center of a vehicle, and a second illumination area (SA2), which includes portions lying horizontally further leftwards and right wards and vertically further upwards than the first illumination area (SA1). When switching from the low beam to the high beam, the luminous intensity of the second illumination area (SA2) is increased and thereafter the luminous intensity of the first illumination area (SA1) is increased. When switching from the high beam to the low beam, the luminance intensity of the first illumination area (SA1) is decreased and thereafter the luminance intensity of the second illumination area (SA2) is decreased.

Description

technical field [0001] The present invention relates to a vehicle headlamp (headlamp) such as an automobile, and more particularly to a vehicle lamp capable of switching a traveling beam and a passing beam. Background technique [0002] The headlights of a car are configured to be able to switch between the driving beam and the passing beam, wherein the driving beam is used to illuminate the distance ahead, and the passing beam is used to prevent other vehicles from being dazzled when there are other vehicles such as the oncoming vehicle or the preceding vehicle. Visually sense and illuminate the front of the vehicle. However, in the driving light beam and the passing light beam, the driving light beam mainly illuminates the front area of ​​the vehicle, while the passing light beam illuminates the near front area except the front area of ​​the vehicle. The light distribution patterns of the two are very different. Therefore, when switching At this time, the lighting conditi...

Claims

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Application Information

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IPC IPC(8): B60Q1/14B60Q1/00
CPCF21S41/635F21S41/255
Inventor 多良直久大石和民早川三千彦
Owner KOITO MFG CO LTD
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