Illumination Device Dynamic Light Distribution for Brightness Uniformity
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Solution Overview
Problem
Conventional illumination devices fail to maintain uniform brightness in rooms with varying natural light conditions throughout the day due to changes in external light entering through windows.
Innovation Solution
An illumination device with a light source, a liquid crystal light distribution part, and a controller that adjusts the light distribution area based on time information stored in association with light distribution area data, allowing for dynamic control of light emission patterns to match changing natural light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed light distribution area is used, then the device structure is simple, but the brightness uniformity in the room deteriorates due to varying natural light conditions
Solution Approach 1:
The patent applies the dynamics principle by making the light distribution area adjustable rather than fixed. The illumination device changes the light distribution area according to time of day to compensate for varying natural light conditions. This dynamic adjustment resolves the contradiction by allowing the system to adapt to changing environmental conditions while maintaining brightness uniformity, thereby improving room illumination stability without requiring overly complex static structures.
Solution Approach 2:
The patent implements parameter changes by varying the light distribution area parameter based on time information. The controller adjusts the light distribution area to be larger during morning/evening hours when natural light is insufficient and smaller during daytime when natural light is abundant. This parameter adjustment resolves the contradiction between maintaining brightness uniformity and avoiding excessive device complexity.
2Stability of the object's composition
If the light distribution area is adjusted dynamically, then the brightness uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent uses parameter changes by adjusting the light distribution area parameter based on time information stored in the device. The controller reads time information and automatically selects appropriate light distribution area settings, improving brightness uniformity while keeping the control mechanism relatively simple through pre-stored configuration data rather than complex real-time calculations.
Solution Approach 2:
The illumination device applies self-service by automatically adjusting its own light distribution area based on time information without requiring external control or complex sensing systems. The device uses its internal time information acquirer and controller to autonomously regulate illumination, improving brightness uniformity while minimizing the need for additional complex control infrastructure.
3Adaptability or versatility
If time-based light distribution adjustment is implemented, then adaptability to natural light conditions is improved, but the device complexity increases
Solution Approach 1:
The patent implements parameter changes by adjusting the light distribution area parameter according to time information. The device stores multiple light distribution area settings corresponding to different times of day and automatically switches between them, improving adaptability to natural light conditions while maintaining relatively simple device architecture through pre-configured parameter sets.
Solution Approach 2:
The illumination device applies preliminary action by pre-storing light distribution area data in association with time information before actual operation. This allows the device to quickly adapt to changing natural light conditions by simply retrieving pre-calculated settings rather than performing complex real-time calculations, thereby improving adaptability while minimizing device complexity.
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 device ensures consistent brightness in a room by adjusting the light distribution area and intensity according to time, effectively compensating for variations in external light, thereby maintaining desired illumination levels throughout the day.
Implementation Method 1
an illumination device including a light source part configured to emit light to a floor surface of a room, a liquid crystal light distribution part configured to change a distribution area of light from the light source part
Implementation Method 2
a liquid crystal light distribution part configured to change a distribution area of light
Data Source
AI summary
An illumination device includes a light source part configured to emit light to a floor surface of a room, a storage configured to store light distribution area data in association with time information, the light distribution area data being related to an area to be irradiated with light in the room, a time information acquirer configured to acquire time information related to current time, a light distribution area setter for setting a light distribution area of light from the light source part, and a controller configured to read out, from the storage, light distribution area data corresponding to the time information acquired by the time information acquirer and control the light distribution area setter based on the light distribution area data.