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Lighting device generating stripe segmented beam for a motor-vehicle headlamp

一种照明装置、机动车辆的技术，应用在照明装置、照明装置的零部件、机动车等方向，能够解决安全性降低等问题，达到提高驾驶安全性的效果

Active Publication Date: 2018-04-06
VALEO VISION SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Combinations of strips are no longer suitable for car lights, and due to these non-uniformities the vehicle can be driven less safely

Method used

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  • Lighting device generating stripe segmented beam for a motor-vehicle headlamp
  • Lighting device generating stripe segmented beam for a motor-vehicle headlamp
  • Lighting device generating stripe segmented beam for a motor-vehicle headlamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 The lighting device 2 according to the invention is shown in a simplified manner. The lighting means are generally shown in the lighting direction. The lighting device is partly represented by its refractive surface.

[0036] Along the lighting direction, the lighting device 2 comprises lighting modules (five in this example) and a projection lens 4 . Each illumination module comprises a primary optical element 6 and an intermediate lens 8 placed between the projection lens 4 and the associated primary optical element 6 . The lighting device comprises an optical axis 10 along which it shines and which folds and converges its rays substantially along the optical axis.

[0037] The lighting device 2 may also comprise at least one light source 12, such as a light emitting diode or a laser, which generates light that penetrates into the lighting device via the primary optical element. Here, 20 light sources 12 are provided to form illumination in a strip manne...

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PUM

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Abstract

A motor-vehicle lighting device (2) includes a plurality of primary optical elements (6), intermediate lenses (8), and a curved projecting lens(8). Each primary optical element has a curved exit refracting surface and comprises a plurality of rectangular light guides that are each intended to interact with one light-emitting diode one laser. Each intermediate lens is placed between an exit refracting surface of the primary optical element and the projecting lens. Each intermediate lens is configured to distribute and concentrate the radiation issued from an exit refracting surface of the element over and onto the projecting lens. The lighting device is configured so as to project the diode radiation entering into the light guides and exiting via the projecting lens in the form of luminouspixels, or luminous strips, the light intensity of each of which is controlled despite the curvature of the projecting lens.

Description

technical field [0001] The invention relates to the field of lighting devices, in particular for headlights of motor vehicles. The invention also relates to an optical unit of a headlight of a motor vehicle equipped with a lighting device according to the invention. Background technique [0002] Motor vehicles are equipped with headlamps or headlights for illuminating the road ahead of the vehicle at night or in low light conditions. Headlights can generally be used in two lighting modes: a first mode of "high beam" and a second mode of "low beam". "High Beam" mode allows the road far ahead of the vehicle to be brightly illuminated. 'Low Beam' mode provides more restricted road lighting, which nonetheless ensures good visibility without blinding other road users. These two lighting modes are complementary. The driver of the vehicle must manually change the mode according to the circumstances, at the risk of unintentionally blinding another road user. In practice, changi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/25F21S41/24F21V5/00F21W102/13F21W107/10
CPCF21V5/008F21S41/143F21S41/255F21S41/26F21S41/663F21S41/265F21S41/27F21S41/16F21S41/153F21W2102/145F21S41/24F21S41/25F21S41/141B60Q1/06B60Q1/16
Inventor 安托万·德拉姆勃特力伊维斯·格若沃德
Owner VALEO VISION SA