Motor Vehicle Headlight Module with Segmented Optical Assemblies
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Solution Overview
Problem
Existing motor vehicle headlamp lighting modules struggle to produce light beams with clear, adjustable vertical edges and uniform illumination, often resulting in blurry vertical separations and inefficient light distribution.
Innovation Solution
A lighting module comprising spaced light emitters with associated lenses and mirrors, where each emitter is paired with a unique lens and mirror assembly to create light strips with sharp vertical edges and adjustable height and width, and an opaque partition between assemblies to prevent parasitic beams, allowing for precise control of light bands based on traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources are used to create adjustable light bands, then the adaptability to different traffic conditions is improved, but the sharpness of vertical edges between illuminated and unlit areas deteriorates
Solution Approach 1:
The patent divides the lighting system into multiple independent light sources (LEDs), each associated with its own optical system (lens and mirror). This segmentation allows individual control of each light band while maintaining sharp vertical edges through dedicated optical elements for each source.
Solution Approach 2:
The patent introduces an opaque partition as an intermediary element positioned between adjacent light sources. This partition acts as a mask that blocks stray light and defines sharp vertical boundaries between illuminated and unlit areas, resolving the edge sharpness issue while preserving the adaptability of individual light bands.
2Adaptability or versatility
If individual light sources are used to create light bands of different heights and widths, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent makes each light source unit (comprising LED, lens, and mirror) a universal module capable of producing light bands with variable height and width characteristics. By optimizing the optical parameters of each module, the system can generate different light band dimensions without requiring completely different light sources for each configuration.
Solution Approach 2:
The patent achieves different light band heights and widths by changing the optical parameters (such as focal length, curvature, and positioning) of the lenses and mirrors associated with each light source, rather than using different numbers or types of light sources. This parameter adjustment approach reduces device complexity while maintaining adaptability.
3Ease of operation
If light sources are spaced to create multiple light bands, then the controllability is improved, but parasitic beams and poor light distribution occur
Solution Approach 1:
The opaque partition serves as a mediator that blocks parasitic beams and stray light from adjacent light sources. It is positioned strategically to prevent direct or reflected rays from one light source assembly from reaching areas where they would create unwanted illumination, thus eliminating harmful effects while preserving the controllability of individual light bands.
Solution Approach 2:
The patent extracts and removes the harmful parasitic beams through the opaque partition, which selectively blocks unwanted light paths while allowing the desired light bands to pass through. This extraction of harmful elements improves the overall light distribution quality without affecting the controllability of the main light bands.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution achieves clear vertical edges, homogeneous illumination, and adjustable light band dimensions, enhancing the sharpness and directionality of the light beam, reducing the number of required LEDs and bands while maintaining the appearance of a traditional high beam.
Implementation Method 1
a mirror is placed behind each lens to reflect the light rays coming from the associated emitter towards the lens
Implementation Method 2
the optical system has several lenses arranged so that each light emitter is associated with at least one different lens
Implementation Method 3
an opaque partition is provided between two adjacent sets of mirror, lens and emitter luminous. This makes it possible to avoid the creation of parasitic beams, the partition absorbing direct or reflected rays from one assembly to another
Data Source
Figure 1~4
Figure 3bis~9
Figure 5~6b
AI summary
Motor vehicle lighting module comprising: - spaced light emitters, - the optical system includes several lenses, arranged so that each light emitter (4) is associated with at least one different lens (3), - a mirror (5) is arranged behind each lens to reflect the light rays from the light emitter, the lenses (3) and the mirrors (5) being calculated to produce with each associated light emitter (4) a light band (W) with sharp vertical edges, of determined height and width.