Digital Optical Instrument Folding Bridge Image Orientation
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Solution Overview
Problem
Digital field glasses with a folding bridge face the issue of image rotation when adjusting the eyepiece distance, leading to unwanted image orientation changes relative to the horizontal, resulting in inefficient use of display area and increased costs and energy consumption.
Innovation Solution
A digital optical instrument with a folding bridge that maintains image orientation relative to the observed scene by using tilted bounding frames to cut out oblique portions of the image, ensuring the image remains erect and not rotated during adjustments, allowing complete utilization of the display area and reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the folding bridge is adjusted to change eyepiece distance, then the interpupillary distance is adapted, but the image rotates relative to the horizontal
Solution Approach 1:
Instead of rotating the image to follow the display orientation, the patent inverts the approach by maintaining fixed image orientation and using tilted bounding frames to extract and display image portions that adapt to the folding bridge angle. This resolves the contradiction by decoupling image orientation from display rotation.
Solution Approach 2:
The patent changes the parameter of image extraction by using dynamically tilted bounding frames whose angles are adjusted according to the folding bridge position. This allows the display area to adapt to different eyepiece distances while the image itself maintains its original orientation, resolving the contradiction between adaptability and orientation stability.
2Area of stationary object
If the image is rotated to match display orientation, then the display area is utilized, but energy consumption increases and costs rise
Solution Approach 1:
The patent extracts only the necessary portions of the image using tilted bounding frames that match the display area shape and orientation. By extracting and displaying only the relevant image portions rather than rotating and displaying the entire image, energy consumption is reduced while display area utilization is optimized.
Solution Approach 2:
The patent applies partial action by displaying only the portions of the image that are necessary to fill the display area, rather than processing and displaying the complete image. This reduces the computational energy required while maintaining optimal display area utilization.
3Device complexity
If rectangular displays are used with folding bridge adjustment, then the hardware is simple, but the image rotates and display area is wasted
Solution Approach 1:
The patent introduces dynamic tilted bounding frames that adjust their angle according to the folding bridge position. This dynamic adaptation allows rectangular displays to efficiently utilize their area at any folding angle without requiring complex hardware changes, resolving the contradiction between hardware simplicity and display area efficiency.
Data Source
AI summary
The invention relates to a digital optical instrument including two eyepieces and a folding bridge for adapting the eyepiece distance to the interpupillary distance of the user. In an image recorded by an image sensor, a first bounding frame which is tilted about a first tilt angle relative to the image sensor, is defined and bounds a first portion of the recorded image, wherein the first tilt angle is defined depending on the folding angle. The first portion which is bounded by the tilted first bounding frame is transmitted to the first or second display and displayed by the first or the second mechanically tilted display while maintaining the orientation of the recorded image relative to the observed scene or relative to the horizontal, that is, without rotating the recorded image or the image portion relative to the observed scene or relative to the horizontal.