Image Photographing Device Lens Blind Detection and Delayed Shutter Control
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Solution Overview
Problem
In image photographing devices with flipable display units, users often experience lens blind issues when self-photographing, where the user's hand shields the lens during one-touch photographing, leading to undesired images due to the display unit's position and mode of operation.
Innovation Solution
The device includes a judgment unit that assesses whether lens blind has occurred based on the display unit's flip state, photographing mode, and orientation, using sensors like hall and gyro sensors, and executes photography after a predetermined time has elapsed following a photographing command, ensuring the user's hand does not obstruct the lens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If one-touch photographing is used with flipable display unit, then ease of operation is improved, but lens blind occurs causing image quality to deteriorate
Solution Approach 1:
The system performs preliminary detection of hand presence near the lens area before executing the photographing action. By using sensors to detect the hand position in advance and delaying the shutter trigger until the hand moves away, the system prevents lens blind while maintaining one-touch operation convenience.
2Productivity
If photographing is executed immediately upon touch, then productivity is improved, but image quality deteriorates due to hand obstruction
Solution Approach 1:
The system continuously monitors hand position near the lens using sensors and provides feedback to control the photographing execution. Based on real-time feedback about hand presence, the system dynamically adjusts the timing of the shutter trigger, executing photographing only when the hand has moved away from the lens area.
3Ease of operation
If display unit is flipped on for self-photographing, then ease of operation is improved, but lens blind occurs more frequently
Solution Approach 1:
When the display unit is in flip-on state for self-photographing, the system performs preliminary detection of hand approach to the lens area before triggering the shutter. This preliminary action allows the system to wait for the hand to move away and then execute photographing, preventing lens blind while maintaining self-photographing convenience.
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
This solution allows users to obtain desired images by delaying the photography action until the user's hand is no longer obstructing the lens, preventing lens blind occurrences and ensuring proper image capture during self-photographing.
Implementation Method 1
using sensors like hall and gyro sensors
Implementation Method 2
using sensors like hall and gyro sensors
Data Source
AI summary
Disclosed herein are an image photographing device that includes a display unit displaying a preview image and a control method thereof. The image photographing device includes a judgment unit that judges whether or not lens blind has occurred and a photographing control unit that executes photographing after a predetermined time following an input of a photographing execution command has elapsed, if the judgment unit judges that lens blind has occurred. Even if a user shields a lens by his/her hand during a process of touching the screen of the display unit or pressing a photographing button to execute photographing, photographing is executed after the user's hand has moved out of the visual field of the lens, and thus an image desired by the user may be obtained without disturbance due to lens blind.