Stereovision Optometry Apparatus with Adjustable Reflective Mirror
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Solution Overview
Problem
Current stereovision optometry devices can only detect the presence of stereovision but not the degree to which an individual perceives 3D content, limiting their ability to provide accurate feedback for 3D display devices like 3D TVs.
Innovation Solution
A stereovision optometry apparatus comprising a 3D display unit, a reference 2D display unit, an eyepiece, a reflective mirror, and a half mirror, which allows for precise measurement of the protrusion angle and accommodation by adjusting the reflective mirror's position to determine the individual's perception of stereovision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional stereovision optometry devices are used, then the presence of stereovision can be detected, but the degree of individual stereovision perception cannot be measured
Solution Approach 1:
The apparatus segments the visual field into multiple regions (first visual field and second visual field) with different stereovision characteristics. By dividing the measurement into distinct spatial zones, the system can independently control and measure stereovision perception in each region, enabling precise quantification of individual perception degrees while maintaining manageable device complexity through modular optical path design.
Solution Approach 2:
A polarizing beam splitter is introduced as an intermediary optical element to separate and recombine light paths from different visual fields. This intermediary component enables the superposition of images with different stereovision properties without requiring complex mechanical adjustments, allowing precise measurement of stereovision perception through optical interference patterns while keeping the overall apparatus structure relatively simple.
2Adaptability or versatility
If a 3D display apparatus provides 3D content to all users, then content delivery is simplified, but individual stereovision differences are not accounted for
Solution Approach 1:
The apparatus provides feedback mechanisms that allow the system to detect individual stereovision characteristics and automatically adjust 3D content parameters accordingly. By incorporating sensors and processing units that monitor user response to stereovision stimuli, the system can adaptively modify content delivery settings without requiring manual user adjustment, thus achieving personalized content delivery while maintaining ease of operation.
Solution Approach 2:
The system enables dynamic changes in 3D content parameters (such as disparity, convergence angle, and focal depth) based on measured individual stereovision characteristics. By automatically adjusting these parameters according to each user's perception degree, the apparatus achieves high adaptability for personalized content delivery while keeping the user interface simple and easy to operate.
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 accurate assessment of stereovision perception, allowing for personalized 3D content adjustments and aiding in the diagnosis of ophthalmic diseases by providing reference information for optimal 3D image presentation.
Implementation Method 1
a reflective mirror (150)
Implementation Method 2
a half mirror (140)
Data Source
AI summary
The invention relates to a stereovision optometry apparatus comprising: a 3D display unit for displaying 3D image; a reference 2D display unit for displaying reference 2D image; an eyepiece in opposite side of the 2D display unit configured to view the images; a reflective mirror in opposite side of the 3D display unit configured to move toward and away from the 3D display unit; and a half mirror arranged between the 3D display and the reflective mirror and disposed at a point where propagation paths of the 2D image and the 3D image intersect; wherein the 2D image penetrates through the half mirror to reach the eyepiece; wherein the 3D image penetrates the half mirror to be reflected on the reflective mirror and then the reflected image is reflected on the half mirror to reach the eyepiece.