Gyro Sensor Tilting Module for Vision Screener Ergonomics
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Solution Overview
Problem
Conventional vision screeners require the examiner to bend their waist or knees to align the device with subjects of varying heights, leading to discomfort and improper monitoring of the LCD screen.
Innovation Solution
A gyro sensor tilting module that detects the tilting angle of the vision screener and uses a driving motor to maintain the optical unit horizontal, allowing for eye examination at the subject's eye level without bending, by rotating the optical unit to align with the subject's eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the vision screener is positioned at the subject's eye level for proper examination, then the examination accuracy is improved, but the optometrist must bend their waist or knees causing discomfort
Solution Approach 1:
The patent applies the dynamics principle by making the optical unit movable through a driving motor. The optical unit can dynamically adjust its position and orientation to maintain a horizontal alignment with the subject's eye, allowing the device to adapt to subjects of various heights without requiring the optometrist to bend. This dynamic adjustment capability resolves the contradiction between maintaining examination accuracy and ensuring optometrist comfort.
2Adaptability or versatility
If the vision screener is tilted to accommodate subjects of various heights, then the adaptability is improved, but the optical unit alignment becomes difficult to maintain
Solution Approach 1:
The patent implements feedback through a gyro sensor that detects the tilting angle of the vision screener. This detected angle is fed back to the driving motor, which automatically adjusts the optical unit's orientation to compensate for the tilt. This closed-loop feedback mechanism ensures that the optical unit remains properly aligned with the subject's eye regardless of the device's tilting position, thereby maintaining manufacturing precision while improving adaptability to various subject heights.
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 comfortable and proper eye examination of subjects of different heights by keeping the optical unit horizontal, allowing the examiner to maintain eye level without bending, improving usability and examination efficiency.
Implementation Method 1
a gyro sensor 10 for detecting a tilting angle of the vision screener
Implementation Method 2
a driving motor 20 for tilting the optical unit 40 by the tilting angle
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
Disclosed is to a gyro sensor tilting module of a vision screener for examining eye of subjects of various heights. The gyro sensor tilting module of a vision screener comprises: a gyro sensor 10 for detecting a tilting angle of the vision screener; a driving motor 20 for tilting the optical unit 40 by the tilting angle in accordance with the tilting angle detected by the gyro sensor 10; and the optical unit 40 which is tilted by the driving motor 20 to be aligned horizontally with an eye of a subject to be examined for measuring the eye.