Segmented LED Pixel Light Source for Dynamic Scene Illumination
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Solution Overview
Problem
Existing systems for illuminating and recording moving scenes are inefficient in terms of energy usage and limited in brightness, color temperature, and field of view, particularly in mobile devices where uniform illumination is not always necessary.
Innovation Solution
A light source comprising a plurality of pixels, each independently controllable, integrated into a semiconductor component, allows for targeted illumination of specific areas with varying illuminance and color coordinates, optimizing energy usage by only illuminating necessary areas and reducing pixel aging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If all pixels in the light source are operated continuously to provide uniform illumination, then the illumination coverage is sufficient, but energy consumption increases and pixel aging accelerates
Solution Approach 1:
The light source is divided into multiple independently controllable pixels, allowing selective operation of individual pixels or groups of pixels based on the actual illumination needs of different scene areas, rather than operating all pixels uniformly
Solution Approach 2:
Different pixels can be operated with different characteristics (on/off, different brightness levels) to match the local illumination requirements of different areas in the scene, providing tailored illumination quality where needed while saving energy in areas that don't require full illumination
2Illumination intensity
If all pixels are operated at high brightness to improve scene visibility, then the illumination intensity is sufficient, but energy consumption and pixel aging increase
Solution Approach 1:
Instead of operating all pixels at high brightness, only the necessary pixels are operated at high brightness levels to illuminate specific areas of interest, while other pixels are operated at lower levels or not at all, avoiding excessive energy consumption
3Area of stationary object
If a single light source illuminates the entire scene, then the field of view is covered, but the ability to dynamically adjust illumination areas is limited
Solution Approach 1:
The light source is segmented into multiple independently controllable pixels, enabling dynamic adjustment of illumination areas by selectively activating different pixels to match moving or changing areas of interest in the scene
Solution Approach 2:
The illumination pattern becomes dynamic as individual pixels can be turned on or off independently based on real-time scene requirements, allowing the system to adapt to moving objects or changing lighting needs rather than maintaining a static illumination pattern
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
This solution enables energy-saving, flexible, and aesthetically enhanced illumination of moving scenes, allowing for dynamic changes in illuminance and color, improving the quality of recorded images and videos while reducing the average operating time of each pixel.
Implementation Method 1
the light source includes at least one semiconductor component including at least one semiconductor chip containing two or more of the plurality of pixels
Implementation Method 2
a light source that illuminates the moving scene, a control device that operates the light source
Data Source
AI summary
An arrangement that illuminates and records a moving scene, including a light source that illuminates the moving scene, a control device that operates the light source, and a camera that records the moving scene, wherein the light source includes a plurality of pixels, each of which is configured to illuminate an area of the moving scene, the control device is configured to operate the pixels, and the light source includes at least one semiconductor component including at least one semiconductor chip containing two or more of the plurality of pixels.