Projection Stabilization via Sensor Feedback Control
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Solution Overview
Problem
Current mobile devices with projection units, such as smartphones and portable computers, face limitations in image quality and stability due to their small size and susceptibility to vibrations when used handheld, making them unsuitable for displaying high-quality images over a larger area.
Innovation Solution
An apparatus comprising a projection unit, detection means (e.g., sensors) to detect changes in position, and a control unit to adjust the image accordingly, ensuring the image remains stationary on a projection area, even when the device is moved, using fine-mechanical deflection units and sensor technology to compensate for vibrations and rotations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If projection units are used in mobile devices to display larger images, then the display area is improved, but the image quality deteriorates due to vibrations and position changes
Solution Approach 1:
The patent implements a feedback control system where a detection means (accelerometer, gyroscope, or position sensor) continuously monitors the position or acceleration of the projection means. The control means receives this detection signal and adjusts the projection parameters in real-time to compensate for detected movements, thereby maintaining stable image quality despite device motion
Solution Approach 2:
The patent replaces mechanical stabilization systems with sensor-based detection and electronic control. Instead of using complex mechanical gimbals or stabilization mechanisms, the system uses detection means to sense position changes and control means to electronically adjust the projection, achieving stabilization through software and sensor feedback rather than mechanical means
2Ease of operation
If the projection means is made mobile for portable use, then the ease of operation is improved, but the stability of the image deteriorates due to device movements
Solution Approach 1:
The patent makes the stabilization system dynamic by continuously adapting to changing conditions. The control means adjusts projection parameters in real-time based on ongoing detection signals from the detection means, allowing the system to respond to arbitrary movements and maintain image stability throughout the projection process
Solution Approach 2:
The system employs continuous feedback from detection means (accelerometers, gyroscopes, or position sensors) that monitor device motion. This feedback loop enables the control means to compensate for movements dynamically, maintaining stable images even during handheld operation
3Reliability
If the projection means is stabilized absolutely for high-quality imaging, then the image quality is improved, but the ease of operation deteriorates as the device cannot be moved
Solution Approach 1:
The patent uses detection means to continuously monitor position or acceleration and feeds this information to the control means, which adjusts projection parameters in real-time. This feedback mechanism enables high-quality imaging during mobile operation without requiring the device to remain stationary
Solution Approach 2:
The system changes projection parameters (such as angle, position, or focus) dynamically based on detection signals. By adjusting these parameters in response to device motion, the system maintains image quality while allowing the device to be moved freely
Data Source
AI summary
An apparatus for generating an image comprises a projection means, which is designed to generate an image on a projection area, a detection means, which is designed to generate a detection means signal in dependence on a position or change of position of the projection means, and a control means, which is designed to control the image generated by the projection means based on the detection means signal. A method for generating an image comprises detecting a position or change of position of a projection means via a detection means, generating a detection means signal by the detection means in dependence on the position or change of position and controlling the image generated by the projection means on a projection area based on the detection means signal.