Scanning Microscope Automatic Pixel Pitch Control for Super-Resolution

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Solution Overview

Problem

Existing super-resolution techniques in scanning microscope apparatuses lack a method for generating a driving signal to achieve the appropriate pixel pitch, making the image acquisition process complicated for users.

Innovation Solution

A scanning microscope apparatus that includes an objective lens, an image acquisition portion, a condition calculating portion, and a control unit to calculate and control the pixel resolution and zoom magnification, allowing for automatic adjustment of the image acquisition to achieve the desired pixel pitch and field-of-view area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a user manually sets the pixel pitch and acquisition conditions to achieve super-resolution imaging, then the image resolution can be optimized, but the operation complexity increases significantly

Engineering Contradiction:
Improvepixel resolutionVSAvoidoperation complexity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system automatically calculates and sets the optimal pixel pitch and acquisition conditions based on the objective lens magnification, enabling the system to self-configure for super-resolution imaging without requiring manual user intervention. The control unit computes the appropriate pixel pitch (e.g., 100nm or 50nm) and adjusts scanning parameters automatically.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically adjusts acquisition parameters including pixel pitch, number of pixels, and zoom magnification based on the objective lens magnification. The control unit modifies these parameters automatically to satisfy the Nyquist sampling theorem requirements for super-resolution imaging, changing system parameters adaptively rather than requiring fixed manual configuration.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the pixel pitch is reduced to achieve higher resolution, then the super-resolution image quality improves, but the image acquisition time increases

Engineering Contradiction:
Improvepixel pitchVSAvoidimage acquisition time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system dynamically adjusts the number of pixels and zoom magnification based on the selected pixel pitch and objective lens magnification. When a smaller pixel pitch is chosen for higher resolution, the control unit automatically increases the number of pixels and adjusts zoom accordingly, optimizing the balance between resolution and acquisition time rather than using fixed parameters.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control unit modifies multiple acquisition parameters simultaneously - pixel pitch, number of pixels, and zoom magnification - based on the objective lens magnification. This coordinated parameter adjustment ensures that higher resolution requirements are met while minimizing the increase in acquisition time through optimized scanning configurations.

Inventive Principle:
Principle #35Parameter changes

3Area of stationary object

If the zoom magnification is increased to maintain field-of-view area, then the user's observation requirements are satisfied, but the pixel pitch may no longer satisfy the desired resolution

Engineering Contradiction:
Improvefield-of-view areaVSAvoidpixel pitch
Core Design Contradiction:
Area of stationary objectVSMeasurement precision

Solution Approach 1:

The control unit performs coordinated adjustment of multiple parameters - zoom magnification, number of pixels, and pixel pitch - based on the objective lens magnification. When zoom is increased to maintain field-of-view, the system simultaneously adjusts the number of pixels and recalculates pixel pitch to ensure the Nyquist sampling theorem is still satisfied, maintaining resolution requirements while preserving the desired field-of-view area.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The system uses the objective lens magnification as feedback to automatically determine the appropriate acquisition parameters. The control unit continuously adjusts pixel pitch, number of pixels, and zoom magnification based on feedback from the lens specification, ensuring that both field-of-view and resolution requirements are met without requiring manual trial-and-error adjustment.

Inventive Principle:
Principle #23Feedback

4Adaptability or versatility

If manual configuration of acquisition parameters is required for super-resolution imaging, then flexibility is maintained, but the device complexity increases

Engineering Contradiction:
Improveparameter flexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system performs self-configuration by automatically calculating optimal pixel pitch and acquisition parameters based on the objective lens magnification. The control unit computes and sets these parameters without requiring manual user input, reducing device complexity while maintaining adaptability to different lens configurations and super-resolution requirements.

Inventive Principle:
Principle #25Self-service

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

Enables easy acquisition of an original image with a pixel pitch that satisfies the necessary conditions for generating a super-resolution image, simplifying the process and maintaining user-defined field-of-view and image acquisition time.

Implementation Method 1

an objective lens that irradiates a specimen with laser light emitted from a light source

Methodology Applied
Scientific EffectLight: Light

Implementation Method 2

laser light emitted from a light source

Methodology Applied
Scientific EffectLaser: Laser

Implementation Method 3

a scanner that deflects the laser light with swivel mirrors capable of swiveling about predetermined swiveling shafts

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 4

a pinhole that allows return light from a focal position of the objective lens to pass therethrough

Methodology Applied
Scientific EffectDiffraction: Diffraction

Data Source

PatentUS10379330B2Scanning microscope apparatus for generating super-resolution image based on set zoom magnification or set number of pixels
Publication Date: 2019.08.13 EVIDENT CORP
  • US10379330B2 patent drawing
  • US10379330B2 patent drawing
  • US10379330B2 patent drawing

AI summary

It is possible to easily acquire an original image of a specimen that satisfies necessary conditions for generating a super-resolution image. The present invention provides a scanning microscope apparatus that includes an objective lens that irradiates a specimen with laser light emitted from a laser light source; a scanning portion that scans the laser light irradiated onto the specimen via the objective lens; and a PC that acquires an original image of the specimen, calculates, from the magnification of the objective lens, information about the number of pixels of the original image or information about the zoom magnification of the original image that achieves the per-pixel pixel resolution needed to generate a super-resolution image, and controls the scanning portion or image acquisition according to the calculated information about the number of pixels or information about the zoom magnification.