Polarization Element with Concavo-Convex Heat Radiation Sections
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Solution Overview
Problem
Projector polarization elements deteriorate due to heat from strong light sources, leading to degraded optical characteristics and increased complexity with air cooling systems.
Innovation Solution
A polarization element with protruding sections and concavo-convex heat radiation sections on a substrate, enhancing heat dissipation and reducing component complexity by integrating heat radiation and protection functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling fan and air feeding device are used to cool the polarization element, then the heat from the light source is dissipated, but the number of components increases and the configuration becomes complicated
Solution Approach 1:
The heat radiation sections are integrated directly onto the polarization element substrate, merging the heat dissipation function with the existing polarization element structure. This eliminates the need for separate cooling fans and air feeding devices, thereby reducing device complexity while maintaining effective heat dissipation.
Solution Approach 2:
The polarization element itself is designed with heat radiation sections that enable it to dissipate heat autonomously without requiring external cooling systems. The heat radiation sections are formed on the substrate to directly radiate heat from the light incident surface, allowing the element to cool itself passively.
2Loss of energy
If the surface area of the heat radiation section is increased, then the heat radiation property is enhanced, but the manufacturing complexity increases
Solution Approach 1:
The heat radiation sections are designed with tilted surfaces that extend in the thickness direction of the substrate, utilizing the third dimension (depth) to increase surface area. This allows the heat radiation sections to radiate heat from multiple angles (front and side surfaces) without requiring a proportionally larger planar area, thereby enhancing heat radiation property while keeping the overall structure compact and manufacturable.
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 effectively prevents heat-induced deterioration of optical characteristics and simplifies the configuration by improving heat radiation properties while protecting the polarization element from dust and moisture.
Implementation Method 1
a heat radiation section 4 formed on a top portion of each of the protruding sections 3, the heat radiation section 4 having a concavo-convex section... the heat caused by the emitted light is released from the protruding sections and the heat radiation sections
Data Source
AI summary
A polarization element includes: a substrate; a plurality of protruding sections formed on the substrate in a striped manner in a plan view; and a heat radiation section formed on a top portion of each of the protruding sections, wherein the heat radiation section has a concavo-convex section.