Vibration Feedback for 3D Oral Scanner Alignment Errors
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Solution Overview
Problem
Users of 3D oral scanners face challenges in continuously checking the display screen for alignment errors, leading to increased user fatigue and potential reduction in data accuracy during the scanning process.
Innovation Solution
An alignment state indicating apparatus that includes a case with an opening for light entry, an imaging unit for capturing raw data, a controller for performing data connection and alignment, and an actuator that vibrates when an alignment error occurs, allowing the user to intuitively perceive the error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user continuously checks the display screen for alignment errors during scanning, then the alignment accuracy is improved, but the user fatigue increases and concentration degrades
Solution Approach 1:
The patent implements a vibration feedback mechanism where the actuator vibrates to provide tactile notification of alignment errors. This allows the user to perceive alignment status through vibration rather than continuously monitoring the display screen, maintaining alignment accuracy while reducing user fatigue and concentration demands.
2Reliability
If the user turns the head to check the display screen during scanning, then the alignment error can be detected, but the scanning efficiency decreases and data accuracy may be reduced
Solution Approach 1:
The vibration feedback from the actuator provides immediate tactile notification of alignment errors, allowing the user to maintain focus on the scanning task while still detecting alignment issues. This eliminates the need to turn the head to check the display, thereby maintaining data accuracy while improving scanning efficiency.
3Manufacturing precision
If the user concentrates on the patient's oral cavity during scanning, then the scanning quality is improved, but the ability to monitor alignment errors on the display screen deteriorates
Solution Approach 1:
The actuator provides tactile feedback through vibration that communicates alignment error information directly to the user's sense of touch. This allows the user to concentrate fully on the scanning quality while the vibration feedback system independently monitors and communicates alignment status, preventing information loss about alignment errors.
4Reliability
If the user frequently checks the display screen for alignment errors, then the alignment errors can be detected early, but the user concentration on scanning deteriorates
Solution Approach 1:
The vibration feedback mechanism provides continuous alignment monitoring through tactile sensation, eliminating the need for frequent display checks. This maintains reliable alignment error detection while preserving user concentration on the scanning task, as the user receives alignment information through vibration rather than visual monitoring.
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 apparatus minimizes data blanks and enables the capture of additional images, resulting in a more precise 3D model and reducing user fatigue by allowing quick intuitive responses to alignment errors.
Implementation Method 1
an imaging unit disposed in the case and configured to obtain raw data by receiving light incident through the opening of the case
Implementation Method 2
an actuator configured to vibrate in case that the alignment error occurs
Data Source
AI summary
The present invention provides an alignment state indicating apparatus and an alignment state indicating method implemented by the apparatus, the apparatus comprising: a case having an opening which is open so that an object in the form of light enters into the case; an image capturing unit which is disposed in the case, and receives light incident through the opening of the case to obtain raw data; a control unit which performs data connection and alignment between three-dimensional data generated through image capturing of the image capturing unit, and determines whether an alignment error has occurred; and an actuator which vibrates when the alignment error has occurred.