Vehicle Lighting Calibration via Matrix LED Segmentation
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Solution Overview
Problem
Existing lighting apparatuses for motor vehicles lack a simple and effective method for calibrating individual light sources to produce prescribable light distributions, leading to potential disturbances and inefficiencies in light adjustment based on traffic situations.
Innovation Solution
A method involving a plurality of illuminants with control means to produce an overlap-free light distribution by superimposing individual light distributions, using sensors to determine and calibrate characteristics, and adjusting settings such as direction, focusing, and intensity to achieve a prescribable overall light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED matrix elements are disconnected and connected to adjust emitted light to suit traffic situations, then the light distribution can be adapted to some extent, but the number of tunnels that can be produced is limited by the number of LED elements, resulting in limited variability of emitted light
Solution Approach 1:
The patent segments the lighting apparatus into multiple independently controllable illuminants (LED elements) arranged in a matrix. Each illuminant can be individually controlled to produce specific light distributions, enabling flexible combination to create various tunnel patterns and adapt to different traffic situations without requiring a large number of elements.
2Manufacturing precision
If a large number of LED elements are used to produce a largely homogeneous light distribution and required number of bright/dark boundaries, then the light distribution quality improves, but production complexity and susceptibility to error increase
Solution Approach 1:
The patent applies local quality by assigning different functions to different regions of the LED matrix. Specific illuminants are designated for cornering light functions while others provide main illumination. This regional specialization allows homogeneous light distribution and proper bright/dark boundaries to be achieved with fewer total elements, reducing production complexity.
3Adaptability or versatility
If cornering lights are added to the lighting apparatus, then cornering functionality is provided, but further light sources need to be arranged in the lateral regions of the vehicle, increasing complexity
Solution Approach 1:
The patent makes the LED matrix illuminants multi-functional by programming them to perform both main illumination and cornering light functions. The control system can activate specific illuminants to create cornering light patterns, eliminating the need for separate cornering light assemblies in lateral vehicle regions.
4Adaptability or versatility
If LCD elements are used to produce backlighting that needs to be attenuated to obtain desired light distribution, then light distribution control is achieved, but power in the order of magnitude of 70% or more needs to be eliminated
Solution Approach 1:
Instead of using LCD elements that block and attenuate light (losing 70% or more energy), the patent inverts the approach by using LED elements that directly emit light in the desired distribution patterns. The illuminants are controlled to produce the exact light distribution needed without requiring extensive attenuation, thereby minimizing energy loss.
Data Source
AI summary
The invention relates to a method for calibrating a lighting apparatus, particularly lighting apparatus for a motor vehicle.