UV Curing Module Layout for Uniform Irradiance Control
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Solution Overview
Problem
Ultraviolet curing devices using traditional light sources like mercury lamps are inefficient and expensive, and UV LEDs, while more efficient, face challenges in achieving uniform irradiance and maintaining it across temperature variations.
Innovation Solution
A UV curing device design featuring a substrate with alternating sections of light emitting elements and transparent blocks, optimized arrangement areas, and a cooling system to manage temperature gradients, ensuring uniform irradiance and efficient light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple ultraviolet LEDs are disposed on a substrate to improve efficiency and reduce cost, then energy efficiency and service life are improved, but uniformity of irradiance deteriorates
Solution Approach 1:
The patent applies local quality by dividing the substrate into multiple sections (first sections and second sections) with different light emitting element arrangements. Specifically, first sections have a first arrangement of LEDs while second sections have a second arrangement, allowing different regions to have optimized characteristics for their local requirements. This enables the overall system to achieve both high efficiency and uniform irradiance distribution across different zones of the curing device.
2Illumination intensity
If light emitting elements are arranged densely to increase irradiance intensity, then illumination intensity is improved, but uniformity of irradiance deteriorates due to temperature variation
Solution Approach 1:
The patent segments the substrate into multiple sections with different light emitting element arrangements. First sections contain light emitting elements with a first arrangement pattern while second sections contain elements with a second arrangement pattern. This segmentation allows the system to maintain high irradiance intensity through dense packing in certain areas while preserving uniformity by using different arrangements in other areas, thereby resolving the contradiction between intensity and uniformity.
3Ease of manufacture
If traditional mercury lamps or halogen lamps are used as light sources, then ease of manufacture is maintained, but energy efficiency deteriorates and cost increases
Solution Approach 1:
The patent replaces traditional mechanical light sources (mercury lamps, halogen lamps) with ultraviolet LED arrays. This substitution maintains ease of manufacture through standardized LED mounting on substrates while dramatically improving energy efficiency. The LED-based system consumes less energy and provides longer service life compared to traditional lamp-based systems, effectively resolving the contradiction between manufacturing simplicity and energy efficiency.
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 enhances uniformity of irradiance and prevents degradation due to temperature variations, improving the overall performance and efficiency of the UV curing process.
Implementation Method 1
An ultraviolet light emitting diode (LED) may be used as a light source for generating ultraviolet light of an ultraviolet curing device
Implementation Method 2
a plurality of transparent blocks disposed between the light emitting module and the stage
Data Source
AI summary
According to an embodiment, disclosed is a curing-device comprising: a stage; a light emitting module including a substrate disposed on the stage and a plurality of light emitting elements disposed on the substrate; and a plurality of transparent blocks disposed between the light emitting module and the stage, wherein the substrate includes a plurality of first sections and a plurality of second sections which are disposed in a first direction, the intervals in the first direction between the light emitting elements disposed in the first sections is smaller than the intervals in the first direction between the light emitting elements disposed in the second sections, and the plurality of transparent blocks are disposed on the first sections.