Microscope Objective Dual Movable Lens Aberration Correction
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Solution Overview
Problem
Existing microscope objectives face challenges in maintaining sufficient imaging quality due to variations in sample container thickness and optical properties, as well as the selection of immersion liquids with different refractive indices and Abbe numbers, which can lead to uncorrected spherical and chromatic aberrations.
Innovation Solution
A microscope objective with two movable lens groups, each correctable along the optical axis, allows for independent adjustment of spherical and chromatic aberrations using specific lens configurations and control mechanisms, ensuring optimal performance across various sample container and immersion liquid conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single movable lens group is used to correct aberrations, then the structure is simpler, but the precision of simultaneous spherical and chromatic aberration correction is insufficient
Solution Approach 1:
The patent divides the aberration correction function into two independent segments: a first movable lens group for spherical aberration correction and a second movable lens group for chromatic aberration correction. This segmentation allows each lens group to be optimized for its specific correction function, achieving precise simultaneous correction of both aberration types while maintaining manageable structural complexity through independent control mechanisms.
2Manufacturing precision
If all lens groups are moved simultaneously to correct aberrations, then the correction can be achieved, but the adaptability to different immersion liquids and sample container conditions is reduced
Solution Approach 1:
The patent segments the lens groups into independently controllable units, allowing selective movement of the first movable lens group for spherical aberration correction and the second movable lens group for chromatic aberration correction. This enables independent optimization of correction for different immersion liquids with varying refractive indices and Abbe numbers, significantly improving adaptability to different sample container conditions while maintaining precise aberration correction capability.
3Manufacturing precision
If correction lenses are inserted or removed to correct aberrations, then the correction can be achieved, but the device length increases
Solution Approach 1:
The patent employs dynamic lens group movement within a compact structure, where the first movable lens group and second movable lens group can be positioned and adjusted along the optical axis without requiring external insertion or removal of correction lenses. This dynamic adjustment mechanism achieves aberration correction while maintaining a compact objective length, avoiding the need for additional space-consuming correction lens components.
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
This solution enables precise correction of aberrations, resulting in improved imaging quality even under conditions of product variability in sample containers and multiple immersion liquid selections, effectively addressing the limitations of prior art.
Implementation Method 1
a first movable lens group (A) that is movable along the optical axis; a first correction means (Ac) configured to move the first movable lens group along the optical axis
Data Source
AI summary
A microscope objective includes a first movable lens group that is movable along an optical axis, a first correction means configured to move the first movable lens group along the optical axis, a second movable lens group that is movable along the optical axis, and a second correction means configured to move the second movable lens group along the optical axis.