Camera Lens Pre-Positioning for Faster Optical Zoom Switching
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Solution Overview
Problem
Electronic devices equipped with both focal length fixed cameras and continuous optical zoom cameras experience discrepancies in zoom function execution times, leading to user discomfort due to differing speeds in image acquisition and display.
Innovation Solution
The electronic device preempts lens movement by positioning it to a preset location within its movable range, allowing for rapid adjustment to desired magnifications, thereby reducing physical movement time and enhancing image acquisition speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a continuous optical zoom camera physically moves the lens to perform zoom function, then high-definition image quality is achieved, but the execution time becomes longer compared to focal length fixed camera
Solution Approach 1:
The system preemptively moves the lens of the continuous optical zoom camera to a preset position within its movable range in advance, before a zoom request is actually made. This preliminary positioning reduces the physical movement time required when zoom is requested, while still maintaining the ability to capture high-definition images through optical zoom.
2Measurement precision
If the lens is physically moved to perform optical zoom, then high-definition images are captured, but user convenience deteriorates due to longer waiting time
Solution Approach 1:
The lens is positioned to a preset position in advance through preliminary action, which reduces the waiting time when zoom is requested. This maintains high-definition image capture capability while improving user convenience by minimizing the delay between zoom request and image acquisition.
3Manufacturing precision
If the lens moves from starting position to target position on demand, then accurate positioning is achieved, but movement time increases
Solution Approach 1:
The lens is moved to a preset position within its movable range in advance, before zoom is actually requested. This preliminary positioning reduces the subsequent movement time when zoom is needed, while maintaining accurate positioning capability for high-definition image capture.
Solution Approach 2:
The system creates a preset position configuration that replicates the optimal lens position for zoom operations. By establishing this preset position in advance, the system avoids the need for full-range lens movement when zoom is requested, thereby reducing movement time while maintaining positioning accuracy.
Data Source
AI summary
An electronic device is provided. The electronic device includes a first camera, a second camera including a lens moving within a movable range, a display, a processor, and a memory operatively connected to the processor. In response to the execution of a function related to the first camera, the electronic device may display a first preview image of a first magnification acquired through the first camera through the display. The processor may move the lens included in the second camera from a starting position to a preset first position configured based on the movable range of the lens while the first preview image of the first magnification is displayed. In response to an input requesting a zoom function to a second magnification, the processor may move the lens of the preset first position to a second position corresponding to the second magnification. The processor may acquire a second preview image corresponding to the second magnification through the second camera based on the lens moved to the second position.