Optical Gradation System for Dynamic Color Patterns
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Solution Overview
Problem
Advertising projection lamps are limited by fixed, unchangeable color patterns, requiring multiple pattern sheets for different designs, which is inconvenient and restrictive.
Innovation Solution
An optical gradation system comprising a first device emitting broad-spectrum linearly polarized light, a second device splitting wavelengths into different polarization directions, and a third device filtering light, with a rotator to change the relative angles of these devices, allowing for dynamic color gradation effects without altering the beam path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pattern sheets are used to achieve different color patterns, then the versatility and adaptability of the projection lamp is improved, but the device complexity and ease of operation deteriorate due to the need to replace multiple physical components
Solution Approach 1:
The patent changes the polarization state parameters of light using wave plates with different optical axis orientations. By rotating the wave plate to adjust its optical axis angle relative to the polarizer, different wavelength components are selectively transmitted, achieving continuous color gradation effects without needing multiple physical pattern sheets.
Solution Approach 2:
The projection lamp system achieves multi-functionality by using a single optical system that can produce various color patterns through parameter adjustment (wave plate rotation). This single device replaces multiple specialized pattern sheets, making the system universal for different color projection needs.
2Adaptability or versatility
If multiple pattern sheets are used to change patterns, then the adaptability is improved, but the ease of operation worsens due to the manual replacement process
Solution Approach 1:
The patent introduces dynamic control by allowing continuous rotation of the wave plate during operation. This dynamic adjustment enables real-time pattern and color changes without stopping the projection or manually replacing components, significantly improving ease of operation while maintaining high adaptability.
3Device complexity
If fixed color patterns are used to simplify the device structure, then the device complexity is reduced, but the adaptability and versatility deteriorate
Solution Approach 1:
The patent maintains a relatively simple optical system structure by using parameter changes (rotation angle of the wave plate) rather than adding complex mechanical switching mechanisms. This approach preserves structural simplicity while achieving high color variation capability through the controllable polarization state changes.
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 the creation of rotating patterns with varying color shades and brightness, enhancing the aesthetic appeal and versatility of advertising projection lamps for applications like door heads, floors, and walls.
Implementation Method 1
a first device configured to emit broad-spectrum linearly polarized light in a first polarization direction
Implementation Method 2
a second device provided with at least one first region for splitting lights of different wavelengths mixed in the broad-spectrum linearly polarized light incident by the first device into emergent lights in different polarization directions
Data Source
AI summary
Disclosed are an optical gradation system and method. The optical gradation system comprises: a first device configured to emit broad-spectrum linearly polarized light in a first polarization direction; a second device provided with at least one first region for splitting lights of different wavelengths mixed in the broad-spectrum linearly polarized light incident by the first device into emergent lights in different polarization directions without changing a beam propagation path; a third device configured to filter out linearly polarized light in a second polarization direction from the emergent lights from the second device in different polarization directions; and, a rotator configured to drive at least one of the first device, the second device and the third device to rotate, wherein the first device, the second device and the third device are arranged coaxially.