Vision Training Device With Movable Display for Personalized Focus Training
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Solution Overview
Problem
Existing vision training devices lack customization based on individual vision status, leading to low training efficiency and user adaptation issues.
Innovation Solution
A vision training device with a movable display and lens system that adjusts focal length, allowing for personalized training ranges and speeds based on user input and sensor feedback to enhance ciliary muscle training efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If vision training is performed without considering individual vision status, then the device structure can be simplified, but training efficiency decreases and user adaptation becomes difficult
Solution Approach 1:
The patent implements dynamic adjustment of the display position along the optical axis based on individual user vision status. The display unit can move between multiple positions (first, second, third positions) corresponding to different focal lengths, allowing the system to adapt to each user's specific accommodation range and near/far point measurements, thereby resolving the contradiction between simplified structure and effective personalized training
Solution Approach 2:
The system changes the focal length parameter by moving the display unit to different positions relative to the user's eye. By measuring the user's specific vision parameters (near point, far point, accommodation range) and adjusting the display position accordingly, the system provides personalized training without requiring complex additional hardware, thus maintaining structural simplicity while improving training efficiency
2Productivity
If the display and lens are moved to adjust focal length for personalized training, then training efficiency improves, but device complexity increases
Solution Approach 1:
The movable unit serving as the drive mechanism performs multiple functions: it positions the display unit at different focal lengths, controls the training range within the accommodation zone, and enables both measurement and training operations. This multi-functionality reduces the need for separate mechanisms, thereby improving training efficiency without proportionally increasing device complexity
Solution Approach 2:
The system incorporates feedback through user input signals and sensor modules that detect accommodation state changes. This feedback allows the control unit to automatically adjust the display and lens positions to appropriate training ranges based on real-time vision status, achieving personalized effective training while keeping the control mechanism integrated and manageable
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 adapting to individual vision needs, enhancing ciliary muscle strength through targeted accommodation exercises.
Implementation Method 1
a lens arranged between the eyepiece unit and the display unit
Implementation Method 2
The movable unit may include a second movable unit that moves the second lens, and the second movable unit is any one of a piezo actuator, a VCM actuator, and an encoder actuator
Data Source
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Figure 3(A)~3(D)
Figure 4
AI summary
The present disclosure describes a vision training device with high training efficiency for the ciliary muscle. In an example, 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.