Measuring Device with Adjustable Reflector for Surface Analysis
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Solution Overview
Problem
Existing measuring devices face challenges in accurately measuring object surface characteristics, such as surface irregularities and foreign matter adhesion, due to variations in distance and angle, and require complex correction methods that increase device complexity and cost.
Innovation Solution
A measuring device with a light-emitting unit, optical system, and correction unit that adjusts the inclination angle of a reflector to ensure consistent light reception, allowing for precise measurement of reflection-angle distributions and surface states, using a double telecentric lens system and diaphragm to control light divergence and convergence, and a correction mirror for simultaneous shading correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a complex correction method is used to account for distance and angle variations, then measurement precision is improved, but device complexity increases
Solution Approach 1:
A reflector with adjustable inclination angle is introduced as an intermediary component between the light source and the object. By adjusting the reflector's angle, the system can compensate for distance and angle variations without requiring complex correction algorithms or multiple sensors, thereby improving measurement precision while keeping the device structure relatively simple
Solution Approach 2:
The system changes the inclination angle parameter of the reflector to compensate for variations in measurement conditions. By dynamically adjusting this geometric parameter, the system maintains consistent lighting conditions across different distances and angles, improving measurement precision without adding complex correction mechanisms
2Measurement precision
If multiple correction methods are implemented to ensure accurate measurement, then measurement precision is improved, but the number of components and cost increase
Solution Approach 1:
The reflector component serves multiple functions: it acts as a light guide, an angle compensator, and a positioning element. By making this single component multi-functional, the system achieves accurate measurement across different conditions without requiring separate correction mechanisms for each function, thereby reducing the total number of components
Solution Approach 2:
The reflector acts as a universal intermediary that handles various correction needs simultaneously. Rather than using separate components for distance correction, angle correction, and lighting control, the reflector integrates these functions, reducing component count while maintaining measurement precision
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 device achieves precise measurement of surface characteristics regardless of distance and angle variations, simplifying the correction process and reducing device complexity while maintaining high measurement accuracy.
Implementation Method 1
a light-emitting unit 14 that emits irradiation light rays to be radiated onto an object
Implementation Method 2
receives at least part of reflected light rays corresponding to the irradiation light rays that have been radiated onto and reflected by the object
Implementation Method 3
a first lens 32 that changes a degree of divergence of each of the irradiation light rays emitted by the light-emitting unit
Implementation Method 4
a second lens 34 that converges each of the irradiation light rays, which have passed through the aperture, and radiates the irradiation light ray onto the object in a predetermined direction
Implementation Method 5
a diaphragm 40 having an aperture 42 that reduces a diameter of each of the irradiation light rays emitted from the first lens
Data Source
AI summary
A measuring device includes a light-emitting unit that radiates light onto an object, a first lens that changes a divergence degree of the light, a diaphragm having an aperture that reduces a diameter of the light, a second lens that converges and radiates the light onto the object, a light-receiving unit that receives at least part of the light that has been reflected by the object and that has passed through the second lens, a measuring unit that measures the object by using results related to the light-receiving unit, a reflector whose angle with respect to the light is adjustable, and a correction unit that varies a light-receiving position on the light-receiving unit by varying the reflector's angle and corrects a light amount of the light-emitting unit and a sensitivity of the light-receiving unit by using results obtained at each light-receiving position.