Head-Mounted Display Range Control via Orientation Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic binocular telescopes experience unstable observation ranges due to unintentional head movements, particularly with high magnification, making it difficult to maintain a stable view or track moving targets.
Innovation Solution
A display apparatus with an image sensor capable of changing focal distance, a display, and an orientation detector, controlled by a processor to adjust the display range based on detected orientation changes, allowing for stable observation by minimizing the impact of head movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the image capturing range is set to match the observation range with high magnification, then the observation detail is improved, but the observation range becomes unstable when the head moves unintentionally
Solution Approach 1:
The system uses an orientation detector to continuously monitor head orientation and feeds this information back to the control unit, which adjusts the display range position to compensate for head movements, maintaining stable observation despite unintended head shifts
Solution Approach 2:
The system dynamically changes the display range parameters (position and size) based on detected orientation changes and focal distance adjustments, adapting the observation parameters to maintain stability while preserving high magnification detail
2Measurement precision
If the sightline position is controlled to the center of the image capturing range, then the image capturing accuracy is improved, but the observation range changes with line of sight even when the user wishes to view the entire desired range
Solution Approach 1:
The system makes the display range dynamic by adjusting its position and size based on both orientation detection and focal distance information, allowing the observation range to adapt to user intentions while maintaining capturing accuracy through coordinated control
3Adaptability or versatility
If the focal distance is changed to adjust the observation range, then the observation flexibility is improved, but the observation range changes unintentionally when the head moves
Solution Approach 1:
The system incorporates feedback from orientation detection to compensate for unintentional observation range changes caused by head movements, even when focal distance is adjusted for flexible observation
Solution Approach 2:
The system coordinates changes in focal distance with corresponding adjustments in display range position, ensuring that both parameters work together to maintain observation stability while preserving the flexibility to adjust the observation range
Data Source
AI summary
A display apparatus according to the present invention is to be fixed on a head of a user, and includes: an image sensor configured to be capable of changing focal distance; a display configured to display, as a display range, a part of an image which is captured by the image sensor; an orientation detector configured to detect an orientation of the display apparatus; and at least one memory and at least one processor which function as a control unit configured to control a position of the display range based on a change of the orientation detected by the orientation detector, and the focal distance.