Optical Module With Adjustable Reflector for Color Flexibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional light-emitting devices using electroluminescence have a limited range of emission wavelengths, restricting the ability to produce different colors, as the color of converted light is determined by the type of phosphor used and cannot be user-adjusted.
Innovation Solution
An optical module with an adjustable reflector and a wavelength conversion set, allowing the light source to be adjusted between positions to reflect light to different wavelength conversion members, enabling the production of various colors by altering the light path and allowing for flexible color selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a phosphor-containing gel is used to convert wavelength, then different emission colors can be achieved, but the color selection is restricted to the phosphor type and cannot be user-adjusted
Solution Approach 1:
The patent employs a movable reflector that can dynamically change its position or angle to redirect light between different wavelength conversion members. This dynamic adjustment mechanism enables the system to switch between different phosphor types (e.g., yellow phosphor for warm white, red phosphor for cool white) without requiring multiple fixed optical paths, thus achieving color adaptability while maintaining relatively simple device structure.
2Adaptability or versatility
If multiple wavelength conversion members are provided for different colors, then color flexibility is improved, but the device size increases
Solution Approach 1:
The patent combines multiple wavelength conversion members (different phosphor materials) into a single integrated optical path. By using a movable reflector to switch between these phosphors, the system achieves multi-color functionality without requiring separate optical channels for each color, thereby reducing the overall device volume while maintaining color flexibility.
3Adaptability or versatility
If the light source emits a fixed wavelength, then the emission mechanism is simple, but the range of emission colors is limited
Solution Approach 1:
The patent introduces wavelength conversion members (phosphors) as intermediary elements between the fixed-wavelength light source and the final emitted light. The light source emits a fixed wavelength (e.g., blue LED), and the phosphor materials convert this to different colors (yellow, red, etc.). This intermediary approach allows a simple fixed-wavelength source to produce a broad color range while keeping the emission mechanism relatively simple.
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 module allows for easy adjustment of light color with minimal space requirements, providing a compact and user-friendly solution for producing different colors by changing the light path to specific wavelength conversion members, enhancing color flexibility and reducing size constraints.
Implementation Method 1
the light source that adopts the EL mechanism has narrower range of emission wavelength. In order to acquire different emission color or broader range of emission wavelength, it is common to utilize a wavelength conversion member (e.g. a phosphor-containing gel) to convert the wavelength of the light emitted by the light source
Implementation Method 2
The adjustable reflector is disposed in a light path of the light emitted by the light source and adaptable to adjust between a first position and a second position. When the adjustable reflector is disposed at the first position, the light emitted by the light source is reflected to the first wavelength conversion member by the adjustable reflector
Data Source
AI summary
An optical module including a light source, an adjustable reflector and a wavelength conversion set is provided. The adjustable reflector is disposed in a light path of light emitted from the light source and adaptable to adjust between a first position and a second position. The wavelength conversion set includes a first wavelength conversion member and a second wavelength conversion member. When the adjustable reflector is at the first position, light emitted from the light source is reflected to the first wavelength conversion member by the adjustable reflector. When the adjustable reflector is at the second position, light emitted from the light source is reflected to the second wavelength conversion member by the adjustable reflector.