Light Source Device Cooling Phosphor Wheels
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Solution Overview
Problem
Existing projector light source devices face challenges in maintaining optimal luminous efficiency of phosphor wheels while preventing an increase in size and component count, as multiple cooling devices are required for effective cooling.
Innovation Solution
A light source device incorporating a laser light source, multiple wavelength converters, and an airflow generator with a blower that divides airflow based on a predetermined condition to optimize cooling for wavelength converters, reducing the need for multiple cooling devices and maintaining efficiency without increasing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple cooling devices corresponding to the phosphor wheels are disposed, then the cooling efficiency of each phosphor wheel is improved, but the size of the projector light source increases and the number of components increases
Solution Approach 1:
Multiple cooling devices are merged into a single cooling device that cools multiple phosphor wheels simultaneously. The single cooling device includes a housing with cooling holes positioned to cool different phosphor wheels, reducing the total number of cooling devices from multiple to one while maintaining effective cooling of all phosphor wheels.
Solution Approach 2:
The single cooling device is designed to perform multiple cooling functions for different phosphor wheels. The housing includes multiple cooling holes that can be positioned to cool different phosphor wheels, allowing one device to serve multiple cooling purposes that would otherwise require separate dedicated cooling devices.
2Temperature
If multiple cooling devices corresponding to the phosphor wheels are disposed, then the cooling efficiency of each phosphor wheel is improved, but the size of the projector light source increases
Solution Approach 1:
Multiple cooling devices are merged into a single cooling device that cools multiple phosphor wheels simultaneously. The single cooling device includes a housing with cooling holes positioned to cool different phosphor wheels, reducing the total number of cooling devices from multiple to one while maintaining effective cooling of all phosphor wheels.
Solution Approach 2:
The single cooling device is designed to perform multiple cooling functions for different phosphor wheels. The housing includes multiple cooling holes that can be positioned to cool different phosphor wheels, allowing one device to serve multiple cooling purposes that would otherwise require separate dedicated cooling devices.
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 solution effectively cools multiple wavelength converters while preventing the size of the light source device from increasing, ensuring optimal thermal management and maintaining luminous efficiency, thereby addressing the challenge of maintaining projector performance without enlarging the device.
Implementation Method 1
a cooling device that cools multiple phosphor wheels by controlling the rotation of the multiple phosphor wheels or by at least one or more fans
Data Source
AI summary
A light source device includes: a laser light source to emit a laser light beam having a wavelength; multiple wavelength converters to convert the wavelength of the laser light beam emitted from the laser light source to other wavelengths different from the wavelength to emit other light beams having the other wavelengths; an airflow generator to generate at least one airflow; and a blower to blow said at least one airflow to each of the multiple wavelength converters based on a predetermined blowing condition.