Dynamic Infinity Focus Display for Electronic Devices
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Solution Overview
Problem
Modern image capturing devices lack effective assistance in focusing, particularly in determining the focus range and infinity position for lens units, leading to difficulties in adjusting focus distances due to varying lens unit designs and settings.
Innovation Solution
An electronic device with a communication unit, obtainment unit, and control unit that communicates with a lens unit to obtain information about the focus distance at infinity and displays distinct ranges on a display unit, allowing users to distinguish between different focus ranges and adjust the focus accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a typical manual focus UI displays a mark indicating infinity at a fixed position, then the UI is simple and consistent, but it becomes difficult to adjust the focus distance of a lens unit to infinity because the infinity position varies by lens unit
Solution Approach 1:
The infinity mark position on the focus ring is made dynamic rather than fixed. The system determines the actual infinity position based on lens unit properties and communicates this to the image capturing apparatus, which then displays the infinity mark at the correct position on the UI. This allows the UI to adapt to different lens units while maintaining simplicity in operation.
Solution Approach 2:
The system implements feedback by having the lens unit communicate its infinity position information to the image capturing apparatus. The apparatus then uses this feedback information to correctly position the infinity mark on the display UI, ensuring accurate focus adjustment without requiring complex manual calibration by the user.
2Adaptability or versatility
If the focus range is limited in telephoto lens units and macro lens units depending on lens unit settings, then the focusing control is simplified for specific scenarios, but the user cannot access the full focus range and must visually confirm setting switches
Solution Approach 1:
The system introduces an intermediary communication interface between the lens unit and the image capturing apparatus. This intermediary mechanism (communication unit) transmits lens unit setting information including focus range limitations to the apparatus, which then displays this information to the user. This eliminates the need for users to visually check physical setting switches while maintaining the adaptability of limited focus ranges for specific lens types.
3Measurement precision
If the gap between the infinity position and the maximum rotation position of the focus ring varies by lens unit, then each lens unit has optimized focus characteristics, but users cannot accurately determine when infinity focus is achieved
Solution Approach 1:
The lens unit provides feedback information about its actual infinity position to the image capturing apparatus. The apparatus uses this information to correctly position the infinity mark on the display UI, giving users accurate visual feedback about when infinity focus is achieved, regardless of the varying mechanical gap in different lens units.
Data Source
AI summary
An electronic device communicates with a lens unit whose focus range is a first range between a first position and a second position of a focus lens. The electronic device obtains first information indicating a third position of the focus lens, at which the focus distance of the lens unit infinity, and a second range between the third position and the second position of the focus lens. The electronic device controls, on the basis of the first information, a display unit to display the first range and the second range of the focus lens to be distinguishable from each other.