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Automotive headlamp apparatus and control method thereof

A technology for headlights and illumination control, which is applied in lighting devices, vehicle lighting systems, headlights, etc., can solve the problems of increased component cost, complicated assembly, and complicated control, and achieves a simple structure and ensures the effect of vision.

Inactive Publication Date: 2009-10-21
KOITO MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the lighting device of Patent Document 1, a plurality of semiconductor light sources must be controlled separately in order to form a partial area where a desired light distribution pattern is obtained, the number of control lines is large and the control is complicated, and since many semiconductor light sources , also incurs the problem of increased component cost and complicated assembly

Method used

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  • Automotive headlamp apparatus and control method thereof
  • Automotive headlamp apparatus and control method thereof
  • Automotive headlamp apparatus and control method thereof

Examples

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Embodiment Construction

[0033] Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

[0034] The vehicle headlamp device of the present embodiment includes a high beam irradiation light source and a control mechanism for controlling irradiation of the light source. The control mechanism performs irradiation control. When at least a part of the high beam irradiation area irradiated by the light source is divided into a plurality of sections in the up and down direction, a plurality of stipulations in the left and right directions are formed in the lower section for a part of the plurality of sections. A first region having a region width and a second region having a region width wider than the first region in the left-right direction is formed in the upper section.

[0035] Various types of light sources such as halogen lamps, discharge lamps, and semiconductor light emitting elements can be used for high b...

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Abstract

An automotive headlamp apparatus is provided with a light source for producing a high beam and a controller for controlling illumination from the light source. Given that at least a portion of a high beam illumination area (42) illuminated by the light source is vertically divided into a plurality of blocks, the controller controls illumination from the light source such that a plurality of firstregions (42a) having a predetermined horizontal width are formed at least in some of the blocks toward the bottom, and that a second region (42b) having a greater horizontal width than the first regions (42a) is formed in the block toward the top.

Description

technical field [0001] The present invention relates to a vehicle headlamp device and a control method of the vehicle headlamp device, in particular to an irradiation control method using a light source for high beam irradiation. Background technique [0002] In general, a vehicle headlamp device includes a high-beam light source used for irradiating running light and a low-beam light source used for irradiating passing light. Among them, the high beam requires that the distance be illuminated as far as possible within the brightness range stipulated by law. On the other hand, it must also be taken into account that it will not cause uncomfortable glare (glare) sensations to oncoming cars, cars driving in front, or pedestrians. In this regard, the low beam forms a light distribution pattern that takes glare suppression into consideration, while the high beam forms a light distribution pattern that does not take glare suppression into consideration because the driver's field...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q1/076B60Q1/14
CPCB60Q2300/112F21S48/1154B60Q2300/41B60Q2300/334F21S48/1159B60Q2300/132B60Q2300/056F21S48/1747B60Q1/143B60Q2300/42B60Q2300/45B60Q2300/122B60Q2300/32F21Y2101/02F21Y2115/10F21S41/663F21W2102/18
Inventor 渡部隆夫山村聪志
Owner KOITO MFG CO LTD
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