Filter Device Routing Light Beams in Projection Apparatus
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Solution Overview
Problem
Current projection apparatuses face inefficiencies in light source utilization, as the second light beam is not fully utilized due to its wavelength not being compatible with the wavelength conversion device, leading to suboptimal image formation and energy waste.
Innovation Solution
Incorporating a filter device between the light sources and the wavelength conversion device, allowing the first light beam to be converted while reflecting the second light beam back into the optical system, thereby enhancing the utilization efficiency of both light beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a wavelength conversion device is used to convert the first light beam, then the conversion light beam is generated, but the second light beam cannot pass through due to wavelength incompatibility
Solution Approach 1:
The optical system is segmented into distinct functional zones: a first optical path for the first light beam passing through the wavelength conversion device, and a second optical path for the second light beam reflected by the filter device. This segmentation allows each light beam to be handled according to its specific wavelength requirements, improving overall light source utilization efficiency while maintaining clear functional separation in the optical system.
Solution Approach 2:
The filter device acts as an intermediary component that selectively transmits the first light beam to the wavelength conversion device while reflecting the second light beam into the optical system. This intermediary function enables wavelength-based routing without requiring complex switching mechanisms, thereby improving light source utilization efficiency with minimal increase in system complexity.
2Loss of energy
If the second light beam is not utilized, then the optical system is simpler, but energy is wasted
Solution Approach 1:
The optical system is designed to continuously utilize both the first light beam (converted to conversion light beam) and the second light beam (reflected into the system) without interruption or waste. The filter device enables continuous separation and routing of both light beams, ensuring that all light source energy contributes to image formation, thereby eliminating energy waste while maintaining system simplicity through continuous useful action.
Solution Approach 2:
Instead of discarding the second light beam that cannot be converted by the wavelength conversion device, the system recovers it by reflecting it into the optical system through the filter device. This recovery mechanism ensures that previously wasted energy is now utilized for image formation, reducing overall energy loss without requiring complex additional components.
3Adaptability or versatility
If multiple light sources with different wavelengths are used, then more light beams are available, but light source utilization efficiency decreases
Solution Approach 1:
The optical system applies local quality by providing different handling paths for different wavelength ranges: the first light beam (specific wavelength) is transmitted through the filter device to the wavelength conversion device for conversion, while the second light beam (different wavelength) is reflected into the optical system. This localized optimization for each wavelength type improves light source utilization efficiency while maintaining adaptability to multiple light sources.
Solution Approach 2:
The system utilizes parameter changes in the optical path based on wavelength characteristics. The filter device changes the direction parameter (transmission vs. reflection) depending on the wavelength of the incident light beam. This parameter-based routing enables efficient utilization of multiple light sources with different wavelengths by directing each appropriate path, thereby improving light source utilization efficiency 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
This configuration improves the light source utilization efficiency by ensuring the second light beam is fully utilized, resulting in improved projection quality and reduced energy waste, enhancing the overall performance of the projection apparatus.
Implementation Method 1
The wavelength conversion device is disposed on a transmission path of the first light beam from the at least one first light source and is configured to convert the first light beam into a conversion light beam
Implementation Method 2
The filter device is configured to allow the first light beam and the conversion light beam to pass through and configured to reflect the second light beam
Data Source
AI summary
A projection apparatus and a light source apparatus are provided. The light source apparatus includes at least one first light source, at least one second light source, a wavelength conversion device, and a filter device. The wavelength conversion device is disposed on a transmission path of the first light beam from the first light source, and converts the first light beam into a conversion light beam. The filter device corresponds to the wavelength conversion device and is disposed between the first light source and the wavelength conversion device and disposed between the second light source and the wavelength conversion device. The filter device allows the first light beam and the conversion light beam to pass through, and reflects the second light beam. The projection apparatus and the light source apparatus have favorable light source utilization efficiency.