Optical Layer With Continuous Axis Rotation
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Solution Overview
Problem
Existing optical devices fail to provide a continuous and efficient shift in optical axes or light absorption axes, limiting their application in adjusting light characteristics for various uses such as windows or shades in buildings and automobiles.
Innovation Solution
A method for preparing an optical device with a single optical layer featuring a shift region where the optical axis or light absorption axis is continuously changed, with an average rate of change greater than 0 or less than 5 degrees per millimeter, allowing for a continuous rotation of 360 degrees without observable interfaces between regions, using a liquid crystal polymer layer or a polarizing layer with a dichroic dye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional optical device uses discrete regions with different optical axes, then the device can provide multiple optical functions, but observable interfaces between regions appear and disrupt optical continuity
Solution Approach 1:
The patent applies parameter changes by controlling the rate of optical axis rotation to be within a specific range (0.5-5 degrees per millimeter). This parameter control ensures that the transition between different optical axis orientations is smooth and continuous, eliminating observable interfaces while maintaining distinct optical regions. The specific parameter threshold directly addresses the contradiction by balancing optical functionality with visual continuity.
Solution Approach 2:
The patent implements dynamics by creating a continuous gradient in optical axis orientation across the optical layer. Instead of static, discrete regions with abrupt boundaries, the optical axes rotate progressively and continuously from one orientation to another. This dynamic gradient approach eliminates sharp interfaces while maintaining the ability to provide multiple optical functions through different rotational positions.
2Adaptability or versatility
If the optical axis changes rapidly across the optical layer, then the device can cover a wide range of optical orientations, but the change rate becomes too high causing observable interfaces and discontinuities
Solution Approach 1:
The patent resolves this contradiction by establishing a specific parameter range for the average rate of change (0.5-5 degrees per millimeter). This parameter constraint allows the optical axis to rotate through a wide total angle while maintaining a controlled, gradual rate of change. The dual-parameter approach (total rotation angle and rate of change) enables both versatility and manufacturing precision.
Solution Approach 2:
The patent uses a dynamic gradient approach where the optical axis orientation changes progressively across the optical layer. This continuous rotation creates a smooth transition that covers a wide range of orientations without creating abrupt changes. The dynamic nature of the gradient allows the system to achieve high adaptability while maintaining manufacturing precision through controlled rate of change.
3Adaptability or versatility
If multiple separate layers are used to achieve different optical axis orientations, then various optical functions can be provided, but the device complexity increases
Solution Approach 1:
The patent applies merging by integrating multiple optical functions into a single optical layer. Instead of using separate layers for different optical axis orientations, the invention combines all required orientations within one continuous layer through progressive rotation. This merging approach maintains full optical functionality while significantly reducing device complexity and the number of interfaces between layers.
Solution Approach 2:
The patent implements universality by designing a single optical layer that performs multiple optical functions simultaneously. The continuous rotation of optical axes within the layer enables it to provide various optical effects (such as different polarization states and phase delays) that would traditionally require multiple specialized layers. This multi-functional design reduces overall device complexity while maintaining versatility.
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 optical device achieves a continuous change in optical axes or light absorption axes, enabling effective adjustment of light characteristics, heat, and glare, suitable for applications in windows, shades, and other devices requiring continuous optical axis changes.
Implementation Method 1
SEIBERLE H ET AL: 'Photo-aligned anisotropic optical thin films' discloses fabrication methods for optical devices using reversible alignment compounds.
Data Source
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AI summary
An optical device and an optical panel are provided. The optical device including an optical layer whose optical axes or light absorption axes are shifted continuously is provided. The optical device can be used to adjust characteristics of light in electronic devices such as display devices, or can be used for various applications requiring a continuous change in an optical axis or light absorption axis, including use of windows or shades of buildings or automobiles.