Microscope Attachment Optics for Aberration Correction Stability
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Solution Overview
Problem
Existing microscopes face challenges in effectively correcting various aberrations, particularly longitudinal chromatic aberration and spherical aberration, which are influenced by the type of immersion liquid and depth of observation, leading to fluctuations in field-of-view and image quality.
Innovation Solution
An attachment optical system comprising a first optical element with negative refractive power and a second optical element with positive refractive power, detachably mounted between the objective lens and the image forming lens, which can correct aberrations by allowing movement along the optical axis and perpendicular to it, and utilizing diffractive optical elements to enhance correction capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional microscopes use fixed optical systems, then the structure is simple, but aberration correction is insufficient and image quality fluctuates with immersion liquid type and observation depth
Solution Approach 1:
The patent implements a movable attachment optical system that can shift along the optical axis and in perpendicular directions. This dynamic positioning capability allows the system to adapt to different observation depths and immersion liquid types, correcting spherical and chromatic aberrations effectively without requiring a completely complex fixed optical design
Solution Approach 2:
The optical system is divided into separate components: a fixed objective lens, a detachable attachment optical system with movable elements, and a fixed image forming lens. This segmentation allows the attachment system to be optimized for aberration correction independently while maintaining overall system simplicity
2Reliability
If the microscope uses a fixed optical system, then the device complexity is low, but the field-of-view stability and image quality consistency across different conditions deteriorate
Solution Approach 1:
The attachment optical system incorporates movable elements that can be positioned dynamically along the optical axis and perpendicular to it. This enables real-time adaptation to different observation conditions (depths and immersion liquids), ensuring consistent image quality and field-of-view stability without over-complicating the overall optical architecture
Solution Approach 2:
The system changes physical parameters (position of optical elements) in response to different observation conditions. By adjusting the position of the attachment optical system, it optimizes aberration correction for each specific condition, maintaining reliability across varied immersion liquids and depths
3Manufacturing precision
If no movable components are used, then the ease of operation is high, but the aberration correction capability is insufficient
Solution Approach 1:
The attachment optical system is designed with movable components that can be positioned along the optical axis and perpendicular directions. This dynamic capability enables effective aberration correction by adjusting the relative positions of optical elements, while the modular design keeps operation straightforward through simple attachment and detachment
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 system provides excellent correction of aberrations, maintaining image quality and field-of-view stability across different immersion liquids and observation depths, ensuring consistent performance in microscopes.
Implementation Method 1
a first optical element having negative refractive power; and a second optical element having positive refractive power
Implementation Method 2
utilizing diffractive optical elements to enhance correction capabilities
Data Source
AI summary
An attachment optical system (AL) is an attachment optical system for a microscope detachably mounted between an objective lens (OL) that receives light from an object and converts the light into parallel light and an image forming lens that forms an image with the light from the objective lens (OL), the attachment optical system comprising: a first optical element (EL1) having negative refractive power; and a second optical element (EL2) having positive refractive power.