Touch-Controlled Light Diffusion for Two-Axis Irradiation Adjustment
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Solution Overview
Problem
Conventional illumination devices lack the ability to freely control the irradiation area of light by adjusting the diffusion degree in multiple directions, limiting flexibility in light distribution.
Innovation Solution
A control device that includes a detection device with a diffusion degree adjustment region and a processing device to calculate and adjust the diffusion degree of light based on the movement of a touch detection position, allowing independent control in two directional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between the light source and the thin lens is changed to change the light distribution angle, then the light distribution can be adjusted, but the control flexibility in multiple directions is limited
Solution Approach 1:
The patent replaces the mechanical adjustment of lens distance with an optical control method using liquid crystal elements. By applying electrical signals to change the liquid crystal's refractive index, the light distribution angle is controlled without mechanical movement, thus improving control flexibility while reducing mechanical complexity
Solution Approach 2:
The patent changes the refractive index parameter of the liquid crystal material through electrical control to adjust light distribution. This parameter change allows dynamic control of the light distribution angle in multiple directions without physical structural changes
2Adaptability or versatility
If a liquid crystal light adjustment element is used to switch between directly reaching light and scattering light, then the light diffusion can be controlled, but the independent control in multiple directions is insufficient
Solution Approach 1:
The patent divides the liquid crystal light adjustment element into multiple independent control regions corresponding to different directional components. Each region can be controlled independently to adjust light diffusion in specific directions, enabling multi-directional control while maintaining ease of operation through separate control signals for each segment
Solution Approach 2:
The patent extends the control from one-dimensional (single direction) to two-dimensional by adding directional components. The liquid crystal elements are arranged and controlled to provide independent adjustment in multiple directions, adding a spatial dimension to the control capability
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
Enables dynamic and precise control of the irradiation area of light by adjusting the diffusion degree in both the Dx and Dy directions, enhancing the flexibility and adaptability of light distribution.
Implementation Method 1
an illumination device including a liquid crystal cell for p wave polarization and a liquid crystal cell for s wave polarization, the diffusion degree of light in two directions can be controlled by driving the respective liquid crystal cells
Data Source
AI summary
A detection device provided with a diffusion degree adjustment region of an illumination device in a detection region where a plurality of detection elements are provided, and a processing device configured to control a diffusion degree change amount of the illumination device in accordance with a movement amount of a touch detection position in the diffusion degree adjustment region are provided. The processing device calculates the diffusion degree change amount corresponding to a first directional component of the movement amount of the touch detection position in the diffusion degree adjustment region, and calculates the diffusion degree change amount corresponding to a second directional component of the movement amount of the touch detection position in the diffusion degree adjustment region, the second directional component being different from the first directional component.