Microscope LED Illumination System for Heat Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional Xenon-based illumination systems for microscopes are bulky, inefficient, produce excessive heat, have limited lifetimes, and lack flexibility, as they are used for both white light reflectance and fluorescence excitation, requiring frequent bulb replacements and backup sources.
Innovation Solution
An LED-based illumination system that independently controls white light and fluorescence excitation spectra using separate LED sources tuned to specific wavelength bands, reducing energy consumption and heat dissipation, and incorporating optical filters to distinguish fluorescent emissions from white light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If Xenon-based illumination is used, then white light and fluorescence excitation can be provided, but the system becomes bulky and produces excessive heat
Solution Approach 1:
The illumination system is segmented into separate LED modules: a first LED module for white light illumination and a second LED module for fluorescence excitation. Each module can be independently controlled and positioned, allowing the system to provide multiple illumination types while reducing heat generation compared to a single Xenon bulb system.
Solution Approach 2:
The system changes the illumination parameters by using LED light sources with specific wavelength characteristics. The first LED is configured to emit light across a white light color spectrum, while the second LED emits light with a peak at a wavelength tuned to the excitation wavelength of fluorescent material, enabling versatile illumination with reduced heat.
2Duration of action of stationary object
If Xenon-based illumination is used, then illumination can be provided, but the light source has limited lifetime and requires frequent replacement
Solution Approach 1:
The patent employs LED light sources that have significantly longer operational lifetimes compared to Xenon bulbs. The first and second LED-based light sources are designed to provide illumination for extended periods without requiring replacement, thereby improving reliability and reducing maintenance requirements.
3Device complexity
If Xenon light source is used for both white light and fluorescence excitation, then device complexity is reduced, but flexibility and independent control are lost
Solution Approach 1:
The illumination system is divided into separate controllable modules: a first LED-based light source for white light and a second LED-based light source for fluorescence excitation. This segmentation allows independent control of each illumination type while maintaining manageable system complexity through modular design.
Solution Approach 2:
The system implements dynamic control where the first and second LED-based light sources can be independently activated, adjusted, and controlled. This enables flexible switching between white light illumination and fluorescence excitation modes, and the ability to use both simultaneously with independent intensity control.
4Ease of operation
If fiber bundle is used to transport light, then illumination can be delivered to carrier, but the system becomes bulky and inefficient
Solution Approach 1:
The patent extracts and eliminates the fiber bundle component from the illumination system. Instead of using a fiber bundle to transport light from a distant Xenon bulb to the carrier, the LED-based light sources are positioned to directly illuminate the carrier, thereby reducing system bulk and improving 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 LED-based system provides a compact, energy-efficient, and flexible illumination solution that reduces heat generation, allows for independent control of white light and fluorescence excitation, and extends equipment lifespan by eliminating the need for frequent bulb replacements.
Implementation Method 1
The illumination system comprises one or more first LED-based light sources configured to emit light across a white light color spectrum
Implementation Method 2
The one or more second LED-based light sources are configured to provide light having at least one peak at a wavelength that is tuned to an excitation wavelength of at least one fluorescent material
Implementation Method 3
The at least one optical filter is arranged to filter the light emitted by the one or more first LED-based light sources
Implementation Method 4
The at least one optical filter may be configured to attenuate or block light having a wave-length that coincides with at least one fluorescence emission wavelength of the at least one fluorescent material
Data Source
AI summary
Examples relate to a Light-Emitting Diode-based illumination system for a microscope, to a system, method and computer program for a microscope, and to a microscope system. The illumination system comprises one or more first LED-based light sources. The one or more first LED-based light sources are configured to emit light across a white light color spectrum. The illumination system comprises at least one optical filter. The at least one optical filter is arranged to filter the light emitted by the one or more first LED-based light sources. The illumination system comprises one or more second LED-based light sources. The one or more second LED-based light sources are configured to provide light having at least one peak at a wavelength that is tuned to an excitation wavelength of at least one fluorescent material.