Stereomicroscope Sidewall Illumination Reduces Scattering
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Solution Overview
Problem
Conventional stereomicroscopes face interference from background and specimen scattering light, leading to an unclear view of the specimen due to their integrated illumination systems.
Innovation Solution
A stereomicroscope design featuring a light emitting unit with LEDs or an annular cold cathode fluorescent lamp positioned to emit light parallel to the base, reducing interference by illuminating the specimen from different directions and improving image clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a permanently incorporated illumination system is used in the base, then the specimen can be illuminated, but background light and scattering light interfere with the view
Solution Approach 1:
The illumination system is extracted from the base and relocated to the vessel. The light emitting unit is now positioned in the vessel's sidewall, separating the illumination source from the base structure. This extraction eliminates the base scattering light that was interfering with the specimen view, while maintaining the ability to illuminate the specimen effectively.
Solution Approach 2:
The vessel acts as an intermediary structure that houses the light emitting unit and positions it optimally relative to the specimen. By placing the illumination source within the vessel rather than in the base, the system uses the vessel as a mediator to deliver light to the specimen without the interfering base scattering light.
2Illumination intensity
If light is emitted from the base, then the specimen can be illuminated, but the view through the lens set becomes unclear
Solution Approach 1:
The illumination system is extracted from the base and repositioned in the vessel. This spatial separation removes the source of scattering light that degraded the specimen view clarity, allowing clear observation through the lens set while maintaining effective specimen illumination.
Solution Approach 2:
The illumination approach is changed from vertical emission from the base to lateral emission from the vessel sidewall. This dimensional change in light delivery allows the light to illuminate the specimen from the side without passing through the base, eliminating the scattering interference and improving view clarity.
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 the clarity of the specimen view by minimizing background and scattering light interference, providing a clearer observation through the lens set.
Implementation Method 1
The light emitting unit 22 is fixed in the sidewall 211 of the transparent body 21 and emits a light 1
Implementation Method 2
A stereomicroscope design featuring a light emitting unit with LEDs or an annular cold cathode fluorescent lamp
Implementation Method 3
The reflected light 3 reflected off the specimen 2 is emitted to the lens set 13
Data Source
AI summary
A stereomicroscope includes a base and a vessel which is disposed on the base. The vessel includes a transparent body and a light emitting unit. The transparent body has a bottom and a sidewall. The bottom and the sidewall define an opening. The sidewall extends from a side of the bottom. The opening of the transparent body places a specimen. The light emitting unit is fixed in the sidewall of the transparent body for emitting light. The light emitted from the light emitting unit illuminates the specimen, and is substantially parallel to the bottom of the transparent body.