Viewing Device Frame and Sensor Motion for Low Vision
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Solution Overview
Problem
Existing devices for assisting individuals with impaired eyesight or low vision in reading or viewing objects often require cumbersome movements and lack a stable, portable solution for displaying large, magnified images, as they typically require the object to be manually moved under a camera and do not allow for natural reading or viewing directions.
Innovation Solution
An apparatus with a frame that moves across a surface in one direction and an optical sensor that moves relative to the frame in a second direction, allowing for stable and portable display of images with adjustable magnification and orientation, including a screen that can be integral with a tablet computer and powered by a photovoltaic panel, enabling easy movement and natural viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the object is manually moved with respect to the support and camera to capture different parts, then the device can view different areas of the object, but the operation becomes cumbersome and time-consuming
Solution Approach 1:
Instead of moving the object under the camera, the patent inverts the approach by moving the camera over the stationary object. The camera is mounted on a movable platform that can be positioned across the object surface, allowing the camera to capture different areas while the object remains fixed in a convenient viewing position.
Solution Approach 2:
The patent extracts the camera from its fixed position on the support and places it on a separate movable platform. This separation allows the camera to be independently positioned and moved across the object without requiring the object itself to be manipulated, thereby simplifying operation.
2Measurement precision
If large magnification is applied to display the object, then the image detail is improved, but the field of view decreases requiring the object to be moved around more
Solution Approach 1:
The patent implements dynamic control of magnification levels, allowing the user to adjust the magnification degree according to the specific viewing needs. The system can switch between high magnification for detailed inspection and lower magnification for viewing larger areas, with the camera position and magnification level being dynamically coordinated.
3Device complexity
If the camera and support are stationary relative to each other, then the device structure is simplified, but the ability to capture different parts of the object is limited
Solution Approach 1:
The patent segments the camera-support system into independent components: a stationary support structure and a separate movable camera platform. This segmentation allows the support to remain simple and stable while the camera platform provides the necessary mobility to capture different areas of the object.
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 apparatus provides a stable and portable solution for viewing large images with adjustable magnification, allowing users to move the device in a way that mimics natural reading or viewing directions, improving usability and reducing the need for constant lifting or repositioning, while supporting larger screens than previous portable devices.
Implementation Method 1
powered by a photovoltaic panel
Data Source
AI summary
An apparatus to capture and display an image of an object includes a frame, at least one optical sensor for capturing the image of the object, means for moving the frame relative to a surface of the object in a first direction, and means for moving the optical sensor relative to the frame in a second direction.