Light Distribution Control for Smooth Illumination Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing illumination devices lack the ability to smoothly transition between light distribution shapes, leading to a lack of presentation effectiveness and limited application possibilities.
Innovation Solution
An illumination device with a light source, a light distribution shape setter, and a controller that stores and controls light distribution shape data, gradually changing signal levels to smoothly transition between light distribution shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the signal level is changed instantaneously from a first level to a second level to change the light distribution shape, then the light distribution shape can be changed quickly, but the change lacks presentation effectiveness and appears unnatural
Solution Approach 1:
The patent applies periodic action by dividing the signal level change into multiple discrete stages (first intermediate level, second intermediate level, third intermediate level) rather than a single instantaneous change. The controller sequentially adjusts the signal level through these intermediate stages, creating a stepped periodic adjustment pattern that makes the light distribution shape change appear gradual and natural to human perception while maintaining relatively fast overall transition speed.
2Loss of time
If the signal level is changed instantly between light distribution shapes, then the response time is short, but the application possibilities are limited due to lack of smooth transition
Solution Approach 1:
The patent applies segmentation by dividing the signal level change process into multiple discrete segments or stages. Instead of a single instantaneous change, the controller sequentially adjusts the signal level through first, second, and third intermediate levels. This segmented approach creates smooth visual transitions that expand application possibilities for presentations and displays while maintaining acceptable response times.
3Extent of automation
If a liquid crystal light adjustment element is used to change transmittance, then the light distribution shape can be switched instantly, but the control lacks variation and presentation effectiveness
Solution Approach 1:
The patent applies dynamics by transforming the static instantaneous switching capability into a dynamic multi-stage adjustment process. The controller dynamically adjusts the signal level through multiple intermediate stages rather than simple on/off switching. This dynamic approach maintains the automated control advantage while adding visual variation and presentation effectiveness through the stepped transition sequence.
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 achieves a natural and gradual change in light distribution shapes, enhancing presentation effectiveness and expanding application possibilities.
Implementation Method 1
the front of a transparent light bulb is covered by a liquid crystal light adjustment element, and the transmittance of a liquid crystal layer is changed to switch between directly reaching light and scattering light
Data Source
AI summary
An illumination device includes: a light source part emitting light; a light distribution shape setter setting a light distribution shape of light from the light source part; a storage storing therein light distribution shape data related to the light distribution shape; and a controller controlling the light distribution shape setter based on the light distribution shape data. Further, the light distribution shape setter sets the light distribution shape based on a signal level input from the controller, and when changing the signal level input to the light distribution shape setter from a first level to a second level, the controller changes the signal level from the first level to a third level that is a level between the first level and the second level, and changes the signal level from the third level to the second level after maintaining the third level for a predetermined time period.