Mirror System with Dynamic Imaging Point Adjustment
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Solution Overview
Problem
Existing mirror systems for superimposing images on reflected images face challenges in presenting evaluation index videos with varying depths, leading to blurred images and difficulty in synchronizing the observation of reflected and presentation images due to differences in focal length and angle of convergence, especially when the user moves.
Innovation Solution
A mirror system that includes a mirror, a display unit, an optical unit, and a controller to acquire distance information and adjust the imaging point of the presentation image to match the depth of the reflected image, allowing for simultaneous and clear observation of both images without changing the fixation point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a diffusion layer (screen) is arranged on the rear side of a half mirror to present a video, then a presentation image can be displayed on the mirror surface, but the depth of the presentation image is fixed on the screen while the reflected image has a different depth, causing binocular parallax mismatch and blurred images
Solution Approach 1:
The patent applies dynamics by making the presentation image depth adjustable rather than fixed. The optical unit (lens system) allows the imaging point of the presentation image to be dynamically changed according to the distance between the treatment acceptor and the mirror, enabling the presentation image depth to adapt to the reflected image depth and achieve proper binocular parallax matching
Solution Approach 2:
The patent changes the optical parameters (focal length, imaging point position) of the presentation image through the optical unit to match the depth parameters of the reflected image. By adjusting these parameters based on distance information, the system achieves depth consistency between the presentation image and reflected image, resolving the binocular parallax mismatch
2Ease of operation
If the treatment acceptor moves forward or backward, then the position of the reflected image changes according to the movement, but the presentation image fixed on the screen cannot follow the movement, causing depth desynchronization
Solution Approach 1:
The patent implements feedback by using a camera to capture the treatment acceptor's position and distance relative to the mirror, then using this information to adjust the optical unit's imaging point. This closed-loop feedback system ensures the presentation image follows the reflected image position changes automatically, maintaining synchronization during movement
Solution Approach 2:
The system dynamically adjusts the presentation image position through the optical unit based on real-time distance information from the camera. This dynamic adjustment allows the presentation image to track the reflected image position changes as the treatment acceptor moves, maintaining proper alignment without requiring the user to remain stationary
3Adaptability or versatility
If a 3D display is used as a video presentation apparatus on the rear side of the half mirror, then depth can be added to the evaluation index video display, but the actual presented video remains on the screen with different depth from the reflected image due to angle of convergence and focus adjustment mechanisms
Solution Approach 1:
The patent introduces an optical unit (lens system) as an intermediary between the display unit and the mirror. This intermediary component adjusts the optical path and imaging point of the presentation image, enabling precise depth control that matches the reflected image depth, thereby resolving the depth inconsistency issue even when using 3D display capabilities
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 the superimposition and display of presentation images with appropriate depth matching the reflected image, allowing users to observe both images simultaneously and accurately, even during movement, by adjusting the focal length and convergence angle to maintain plane symmetry.
Implementation Method 1
a mirror which reflects incident light from an object facing on a front surface side to present a reflected image, and transmits incident light from a rear surface
Implementation Method 2
an optical unit which is arranged between the display unit and the rear surface of the mirror, and images the presentation image
Data Source
AI summary
In a mirror system for displaying an image on a mirror surface, a mirror reflects incident light from an object facing its front surface side to present a reflected image, and transmits incident light from its rear surface. A display unit generates a presentation image to be superimposed on the reflected image. An optical unit is arranged between the display unit and the rear surface of the mirror, and images the presentation image. An acquisition unit acquires distance information between the object and the mirror. A controller controls the imaging point of the presentation image by the optical unit according to the distance information.