Piezoelectric Microscope Focusing Device
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Solution Overview
Problem
Conventional microscopes face challenges in achieving precise and comfortable focusing, particularly in adjusting the depth of field for optimal image clarity, which can be cumbersome and lacking in precision.
Innovation Solution
A piezoelectric operated microscope focusing device is designed, comprising a first block coupled to the microscope body with screws, a second block with a piezoelectric material subjected to a bias force, and a bracket to secure the objective, allowing for precise adjustments through the piezoelectric effect, enabling precise control of the focus by changing the distance between the viewing optics and the objective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional manual focusing mechanisms are used, then the device complexity is low, but the measurement precision and ease of operation deteriorate due to cumulative errors and difficulty in achieving precise focus
Solution Approach 1:
The patent replaces the conventional mechanical focusing mechanism with a piezoelectric actuator that converts electrical signals directly into precise mechanical displacement. This substitution eliminates cumulative mechanical errors and provides digital control precision, achieving nanometer-level focusing accuracy while reducing the complexity of mechanical transmission components.
Solution Approach 2:
The patent changes the control parameter from manual mechanical adjustment to electrical voltage control. By applying variable voltage to the piezoelectric actuator, the focusing position can be precisely adjusted without mechanical linkages, thereby improving measurement precision while simplifying the overall control system.
2Ease of operation
If conventional manual focusing is used, then the device structure is simple, but the ease of operation deteriorates due to difficulty in achieving optimal focus and adjusting depth of field
Solution Approach 1:
The manual mechanical focusing system is replaced with an electrically controlled piezoelectric actuator that can be adjusted via software or control signals. This substitution makes focusing operation as simple as adjusting a digital parameter, dramatically improving ease of operation while the integrated design keeps the structural complexity manageable.
Solution Approach 2:
The piezoelectric actuator provides self-adjusting capabilities through feedback control, automatically maintaining optimal focus position. This reduces the operational burden on the user while the compact integrated structure minimizes the added complexity.
3Manufacturing precision
If the distance between viewing optics and objective needs precise adjustment, then image clarity improves, but the device complexity increases due to additional focusing mechanisms
Solution Approach 1:
The patent uses a piezoelectric actuator to directly adjust the distance between viewing optics and objective without complex mechanical transmission systems. This direct-drive approach achieves precise distance control (nanometer level) while actually reducing the number of mechanical components, thereby improving manufacturing precision without proportionally increasing device complexity.
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 provides precise and comfortable focusing capabilities, enhancing image clarity and ease of use by allowing for precise adjustments of the focus, improving the overall microscope performance.
Implementation Method 1
A piezoelectric material contained within a cylinder positioned between the first side and the second side of the first block
Implementation Method 2
The piezoelectric material may be subjected to bias force using a spring
Data Source
AI summary
Implementations of piezoelectric operated microscope focusing devices may include: a first block, having a first side and a second side, the first side coupled to a body of a microscope through four or more screws. The device may also include a second block, having a first surface, a second surface, and a side surface. The side surface may be coupled to the second side of the first block. The second surface of the second block may be configured to couple with an objective of the microscope. A piezoelectric operated microscope focusing device may also include an opening on the first surface of the second block. The opening may be configured to couple to an illuminator of a microscope. The opening may have a substantially rounded portion and an adapter orientated substantially perpendicular to the first block of the device. The adapter may include dove tail projections and mounting screws.