Condenser Lens Cooling via Dedicated Wind Guide
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Solution Overview
Problem
Existing laser projectors using laser phosphor wheels face inefficiencies in heat dissipation from the condenser lens, leading to overheating and potential breakdowns.
Innovation Solution
A wavelength conversion device is designed with a wavelength conversion element, condenser lenses, a fixing device, a heat dissipation wind flow device, and a wind guide structure to effectively dissipate heat from the condenser lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a wind flow generated by rotation of the phosphor wheel is used to dissipate heat from the condenser lens, then the structure is simple, but the heat dissipation effectiveness is insufficient causing the condenser lens to overheat
Solution Approach 1:
A dedicated heat dissipation wind flow device is introduced as an intermediary component to generate cooling airflow specifically directed at the condenser lens. This separate wind flow system acts as a mediator between the heat source (condenser lens) and the cooling medium (air), providing targeted heat dissipation independent of the phosphor wheel rotation
Solution Approach 2:
The heat dissipation function is segmented from the phosphor wheel rotation function. Instead of relying on the phosphor wheel rotation to provide both wavelength conversion and heat dissipation, the invention separates these functions by introducing a dedicated wind flow device solely for heat dissipation purposes, allowing each component to optimize its specific function
2Illumination intensity
If the condenser lens is placed in front of the phosphor wheel to receive and focus light, then the projection quality is improved, but the heat accumulation increases causing overheating
Solution Approach 1:
The invention converts the harmful effect of concentrated light (which causes heat accumulation) into a beneficial cooling effect by using the same light path to drive a wind flow device. The concentrated light energy that would otherwise be wasted as heat is instead used to power the cooling mechanism, creating a self-regulating system where the heat problem becomes part of the solution
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 solution achieves improved heat dissipation efficiency, reducing the working temperature of condenser lenses and enhancing the overall projection quality and product competitiveness.
Implementation Method 1
a heat dissipation wind flow device and a wind guide structure connected between the heat dissipation wind flow device and the vent
Implementation Method 2
The wavelength conversion layer is disposed on the first surface
Implementation Method 3
wavelength conversion layer
Data Source
AI summary
A wavelength conversion device includes a wavelength conversion element, at least one condenser lens, at least one fixing device, a heat dissipation wind flow device, and a wind guide structure. The wavelength conversion element includes a substrate, a wavelength conversion layer, and a driving component. The substrate has a first surface and a second surface opposite to each other. The wavelength conversion layer is disposed on the first surface, and the driving component drives the substrate to rotate about a rotary shaft of the driving component as a central axis. The condenser lens is arranged on one side of the first surface of the wavelength conversion element and fixed to the fixing device. The fixing device has at least one vent. The wind guide structure is connected to the heat dissipation wind flow device and the vent.