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Front lighting system for vehicle

A lighting system and vehicle technology, applied in the field of vehicle front lighting systems

Pending Publication Date: 2022-05-10
LUMILEDS HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this helps avoid dark shadows caused by the opaque shutter between the low and high beam patterns, it does present problems due to small size constraints and furthermore the low light intensity of the light source itself

Method used

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  • Front lighting system for vehicle
  • Front lighting system for vehicle
  • Front lighting system for vehicle

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Embodiment Construction

[0030] While the invention is susceptible to embodiments in many different forms, only one or more specific embodiments have been shown in the drawings and will be described in detail herein, it being understood that the description is to be considered as the basis of the invention. It is an example of the basic principles and is not intended to limit the invention to the specific embodiments shown and described herein.

[0031] It should be noted that various components in the different figures are not drawn to scale. In addition, the relative positions between the various elements shown in the figures are only for illustrating the basic principles of the present invention and should not be considered as limiting the scope of the present invention.

[0032] refer to figure 1 , according to an embodiment of the present invention, a front lighting system 10 for a vehicle is proposed. Specifically, the front lighting system 10 mainly includes a first light source BS1 , a secon...

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PUM

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Abstract

The invention relates to the field of motor vehicle front lighting, in particular to a front lighting system for a vehicle. The front lighting system (10, 60, 70) comprises a first light source (BS1), a second light source (BS2), a first primary optic (11, 61, 71), a second primary optic (12, 72), a transparent shutter (14, 74), and a secondary optic (13, 63, 73). The first primary optics (11, 61, 71) are designed to receive light from the first light source (BS1) and to project it onto the transparent shutter (14, 74) and the secondary optics (13, 63, 73). The second primary optic (12, 72) is designed to receive light from the second light source (BS2) and to project it onto the transparent shutter (14, 74). The transparent shutter (14, 74) is designed to receive light from the first light source (BS1) via the first primary optics (11, 61, 71) and to prevent a low beam portion of the light from entering the secondary optics (13, 63, 73). The transparent shutter (14, 74) is further designed to receive light from the second light source (BS2) via the second primary optics (12, 72) and to project it onto the secondary optics (13, 63, 73). The secondary optics (13, 63, 73) are designed to receive light from the first primary optics (11, 61, 71) and the transparent shutter (14, 74) and to project it onto the road in front of the vehicle. The transparent shutter (14, 74) comprises an air-exposed slit (15, 65, 75) designed to redirect the light received by the transparent shutter (14, 74) from the second light source (BS2) towards the intermediate axis (X) of the transparent shutter (14, 74).

Description

technical field [0001] The invention relates to the field of motor vehicle front lighting, and in particular to front lighting systems for vehicles. Background technique [0002] Today, dual-function Polyellipsoid System (PES) solutions for headlamps are widely used in automotive lighting. In general, opaque baffles are used in this solution to achieve a high beam (also known as upper beam) and low beam (also known as low beam (low beam) lower beam)). In this method, due to the thickness of the opaque shutter itself, there are dark areas in the final projected beam pattern, especially between the high beam and the low beam. [0003] In order to avoid dark areas as indicated above, it has been proposed to use transparent louvers instead of opaque louvers in motor vehicle lighting systems, see eg WO2018192963A1 and CN205619152U. However, due to size limitations of optical elements such as the transparent shutter itself, the input beams from light sources such as low beam an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/40F21S41/32F21S41/365F21S41/20F21S41/25F21W102/135F21W107/10
CPCF21S41/40F21S41/321F21S41/365F21S41/322F21S41/285F21S41/25F21W2102/135F21W2107/10F21S41/24F21S41/151F21S41/148F21S41/143F21W2102/13F21S41/153F21S41/43
Inventor 鲁康吴萍张骏
Owner LUMILEDS HLDG BV