Microscope Rangefinder for Rapid Focal Plane Determination
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Solution Overview
Problem
Traditional microscopes face inefficiencies when observing objects on transparent carriers with varying thicknesses, requiring manual and slow focus adjustments to determine focal planes accurately.
Innovation Solution
A microscopic device equipped with an object stage, rangefinder, and focusing module that measures and adjusts the position of the microscopic objective along a perpendicular direction to quickly and accurately determine the focal plane, improving observation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual focus adjustment is used for transparent carriers with varying thicknesses, then the microscope can observe objects at different positions, but the operational efficiency is low due to slow and manual focus adjustments
Solution Approach 1:
The patent replaces the manual mechanical focus adjustment system with an automated optical measurement system. A rangefinder measures the distance from the microscopic objective to the surface of each object position on the transparent carrier, and a focusing module automatically adjusts the microscopic objective's position based on these measurements, eliminating manual intervention and significantly improving operational efficiency
Solution Approach 2:
The system performs self-service by automatically measuring distances and adjusting focus without human intervention. The rangefinder and focusing module work together to autonomously determine the focal plane for each object position, allowing the microscope to adapt to varying carrier thicknesses independently
2Measurement precision
If manual focus adjustment is used to determine focal planes, then the microscope can accommodate transparent carriers with deviations in thickness, but the process is slow and not accurate enough
Solution Approach 1:
The patent replaces manual mechanical focus adjustment with an automated optical measurement and control system. The rangefinder provides precise distance measurements to the carrier surface, and the focusing module translates these measurements into accurate focal plane positioning, achieving both high precision and rapid operation
Solution Approach 2:
The system implements feedback control by continuously measuring the distance from the microscopic objective to the carrier surface using the rangefinder, then automatically adjusting the focus based on these real-time measurements. This closed-loop feedback mechanism ensures accurate focal plane determination while maintaining high operational speed
Data Source
AI summary
The present disclosure disclose a microscopic device and a focusing method of the microscopic device, the microscopic device includes an object stage configured to carry a transparent carrier and drive the transparent carrier to translate along at least one direction, the transparent carrier includes at least two object positions; a microscopic objective located on a side of the object stage; a rangefinder located on a same side of the object stage as a microscopic objective and at a same height relative to the object stage, and the rangefinder is configured to measure a distance between a surface of each of the at least two object positions and the microscopic objective; a focusing module configured to adjust a position of the microscopic objective along a first direction based on the distance measured by the rangefinder, wherein the first direction is perpendicular to a carrying surface of the object stage.