Imaging System Dynamic Virtual Image Sizing
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Solution Overview
Problem
Imaging systems with augmented or virtual reality applications face issues where the virtual image size varies with user distance, leading to incomplete display when too large or too small, as the image exceeds or doesn't fit the display area of the image combiner.
Innovation Solution
Incorporating a distance sensor and communication module to adjust the display size of the image generating device based on the user's distance from the imaging system, and optionally using an indication mark to guide the user in adjusting their position for optimal viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the user moves closer to the imaging system, then the virtual image becomes larger and more detailed, but the virtual image exceeds the display area of the image combiner and cannot be fully displayed
Solution Approach 1:
The patent implements dynamic adjustment of the virtual image display size based on the user's distance from the imaging system. The controller receives distance information from the distance sensor and dynamically adjusts the display size parameter of the image generating device, allowing the system to adapt to changing user positions and maintain optimal display within the image combiner's area.
Solution Approach 2:
The patent employs a feedback mechanism where the distance sensor continuously monitors the user's distance from the imaging system and transmits this information to the controller. The controller then adjusts the display size accordingly, creating a closed-loop control system that ensures the virtual image remains within the display area while maximizing visibility and detail.
2Area of stationary object
If the user moves farther from the imaging system, then the virtual image fits within the display area, but the virtual image becomes too small for optimal viewing
Solution Approach 1:
The system dynamically adjusts the display size in response to user distance changes. When the user moves farther away, the controller receives updated distance information and increases the display size parameter, ensuring the virtual image remains sufficiently large for optimal viewing while still fitting within the image combiner's display area.
Solution Approach 2:
The feedback loop continuously monitors user distance and adjusts the display size to maintain optimal viewing conditions. When the user is at a greater distance, the system receives this information and appropriately enlarges the virtual image display to compensate for the increased viewing distance, ensuring the image remains visible and detailed.
3Device complexity
If the display size is fixed, then the system structure is simple, but the virtual image cannot adapt to different user distances and either exceeds or does not fit the display area
Solution Approach 1:
The patent integrates multiple functions into the imaging system: the distance sensor not only detects user distance but also provides input for display size adjustment; the controller performs both distance processing and display parameter adjustment. This multi-functional design enables the system to adapt to different user distances while maintaining a relatively compact structure.
Solution Approach 2:
The system automatically adjusts the display size based on detected user distance without requiring manual intervention. The distance sensor and controller work together to self-regulate the display parameters, eliminating the need for user adjustment mechanisms and reducing overall system complexity while maintaining high adaptability.
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
Ensures the virtual image remains within the display area of the image combiner by dynamically adjusting its size according to the user's distance, providing an optimal viewing experience by preventing enlargement beyond the display bounds and ensuring fitment when the user is too close.
Implementation Method 1
The distance sensor senses a distance between an object and the imaging system
Implementation Method 2
a light projected by the image generating device is reflected by the at least one reflecting mirror to the image combiner
Data Source
AI summary
An imaging system includes an image combiner, at least one reflecting mirror, an image generating device, a communication module and a distance sensor. The at least one reflecting mirror is disposed with respect to the image combiner. The image generating device is disposed with respect to the at least one reflecting mirror. When the image generating device displays an image, a light projected by the image generating device is reflected by the at least one reflecting mirror to the image combiner, so as to form a virtual image through the image combiner. The distance sensor senses a distance between an object and the imaging system and transmits the distance to the image generating device through the communication module. When the image generating device determines that the distance is larger than a predetermined threshold, the image generating device adjusts a display size of the image according to the distance.