Head-Mount Vision Tester Eyeball Feedback Alignment
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Solution Overview
Problem
Conventional head-mount type vision testing devices require testers to manually adjust the device's position on the testee's head, which can be time-consuming and inefficient, as the testee cannot directly recognize positional displacements, leading to potential misalignment and increased workload for the tester.
Innovation Solution
A vision testing device with a display system that shows the testee the image of their eyeball, allowing them to recognize and correct positional displacements of the device main body, reducing the need for tester intervention and enabling faster adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tester manually adjusts the device main body position by watching the television monitor, then the positional adjustment can be performed, but the adjustment time increases and the tester's workload increases
Solution Approach 1:
The testee independently adjusts the device main body position by viewing the eyeball image display and understanding the positional relationship between the eyeball image and the frame, eliminating the need for tester intervention and reducing adjustment time
Solution Approach 2:
The display device provides real-time feedback by showing the eyeball image within a frame, allowing the testee to understand their eyeball's positional relationship and make precise adjustments to align the eyeball with the frame center
2Ease of operation
If the tester manually adjusts the device main body position, then the positional adjustment can be performed, but the complexity of the adjustment process increases
Solution Approach 1:
The testee independently performs the adjustment by viewing the eyeball image display and understanding the positional relationship between the eyeball image and the frame, eliminating the need for tester intervention and simplifying the adjustment process
Solution Approach 2:
The eyeball image display acts as an intermediary between the testee and the adjustment process, providing intuitive visual feedback that simplifies the adjustment operation and reduces process complexity
3Ease of manufacture
If the testee cannot recognize positional displacement, then the device can be mounted, but the positioning accuracy decreases
Solution Approach 1:
The display device provides real-time feedback by showing the eyeball image within a frame, allowing the testee to understand their eyeball's positional relationship and make precise adjustments to align the eyeball with the frame center, thereby improving positioning accuracy
Solution Approach 2:
The eyeball image display acts as an intermediary that makes the positional displacement visible and understandable to the testee, enabling accurate positioning without requiring the testee to directly observe the physical device position
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 solution allows the testee to independently adjust the device's position, reducing the tester's workload and shortening the adjustment time, enabling more efficient vision testing by providing real-time feedback on positional alignment.
Implementation Method 1
an imaging device for imaging an eyeball of the testee
Data Source
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AI summary
In order to reduce a tester's workload When the device main body of the vision testing device is mounted on a testee's head, there is provided a head mount-type vision testing device, which is a head-mount type vision testing device mounted on a testee's head, including: a device main body having display devices 12L and 12R for displaying a visual target for the testee and imaging deviceS 16L and 16R for imaging eyeballs 8L and 8R of the testee; a mounting fixture for mounting the device main body on the testee's head; and a controller 30 that displays images of the eyeballs 8L and 8R imaged by the imaging devices 16L and 16R on the display devices 12L and 12R, so that the testee can recognize a positional displacement state of the eyeballs 8L and 8R caused by a positional displacement of the device main body mounted on the testee's head using the mounting fixture.