Vision Training Device with Movable Lens and Display
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Solution Overview
Problem
Conventional vision training devices have low efficiency and are difficult for users to adapt to, as they do not consider individual variations in ciliary muscle abilities, leading to ineffective vision improvement.
Innovation Solution
A vision training device with a housing, eyepiece units, a display, lenses, and a control unit that adjusts the position of the display and lenses along a fixation axis, allowing users to set personalized training ranges based on their accommodation points, speed, and accommodation state changes, enhancing training efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If vision training is performed by simply changing focal length without considering individual vision status, then the training process is simple, but training efficiency is low and user adaptation is difficult
Solution Approach 1:
The device performs preliminary measurement of the user's accommodation range (near point and far point of accommodation) before training. The control unit sets the training range based on these measured values, ensuring the training is customized to the individual's vision status. This preliminary action enables high training efficiency without requiring complex real-time adjustments during training.
Solution Approach 2:
The device changes physical parameters (position of display and lens along the fixation axis) within the determined training range to provide customized vision training. The movable unit adjusts these parameters based on the user's individual accommodation characteristics, resolving the contradiction between simple operation and personalized effectiveness.
2Productivity
If the training range is customized based on individual accommodation points, then training efficiency is improved, but the device complexity increases due to additional measurement and control functions
Solution Approach 1:
The display serves multiple functions: it displays target images for vision training and also functions as a measurement tool for determining the user's accommodation range. The movable unit and control unit work together to both measure and train, reducing the need for separate dedicated components and minimizing device complexity while maintaining customization capability.
Solution Approach 2:
The device automatically measures the user's accommodation characteristics and self-adjusts the training range without requiring external equipment or complex setup. The control unit autonomously determines the training parameters based on user input and sensor data, enabling personalized training with minimal additional complexity.
3Adaptability or versatility
If the position of display and lens is adjusted along the fixation axis, then personalized vision training is achieved, but the mechanical structure becomes more complex
Solution Approach 1:
The movable unit combines the display and lens positioning functions into a single integrated mechanism that moves both components along the fixation axis. This merging reduces mechanical complexity compared to having separate adjustment mechanisms for each component, while still enabling personalized training through coordinated movement.
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 provides high training efficiency and improved vision recovery by customizing the training regimen according to individual vision status, effectively strengthening the ciliary muscle through targeted accommodation exercises.
Implementation Method 1
The second movable unit is any one of a piezo actuator, a VCM actuator, and an encoder actuator
Implementation Method 2
The second movable unit is any one of a piezo actuator, a VCM actuator, and an encoder actuator
Implementation Method 3
The second movable unit is any one of a piezo actuator, a VCM actuator, and an encoder actuator
Implementation Method 4
a lens arranged between the eyepiece unit and the display unit
Data Source
AI summary
A vision training device includes a housing having at least one eyepiece unit corresponding to an eye of a user, a display that displays a target image in front of a fixation axis of the user, a lens arranged between the eyepiece unit and the display unit, a movable unit capable of moving at least one of the display and the lens along the fixation axis, and a control unit that sets at least one training range within a movable range of the display and the lens and controls the movable unit such that at least one of the display and the lens is moved within the training range.