Image Pickup Shutter Control for Continuous Through Image Display
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Solution Overview
Problem
Image pickup apparatuses struggle to continuously display a through image after a still image is captured, leading to users potentially losing sight of the object and an inconvenient user experience due to the shutter not being completely open after exposure is completed.
Innovation Solution
The apparatus includes a control system with a shutter unit, image pickup device, signal processing unit, and display unit, which captures and displays a second through image with a light-shielded area until the shutter is fully opened, and then switches to a first through image, ensuring continuous display and preventing interruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shutter unit is operated to capture a still image, then the image pickup operation is stopped and exposure is completed, but the shutter is not completely opened after exposure, causing the through image display to be interrupted and darkened
Solution Approach 1:
The control unit determines whether the shutter unit is in the process of opening before deciding to display the through image. This preliminary check ensures that the through image is displayed only when appropriate, avoiding display during shutter operation while maintaining continuous display once the shutter is fully open, thus resolving the contradiction between display continuity and user convenience
2Reliability
If the shutter unit is not completely opened after exposure, then the through image cannot be picked up, but continuous display is interrupted
Solution Approach 1:
The control unit continuously monitors the shutter unit's opening state and uses this feedback information to determine when to start displaying the through image. This feedback mechanism ensures that the through image is displayed only when the shutter is fully open, maintaining reliable image pickup while minimizing display interruption time
3Productivity
If the shutter operates during through image display, then exposure is completed, but the display darkens and user tracking is disrupted
Solution Approach 1:
The display control strategy dynamically adjusts based on the shutter unit's operational state. The control unit modifies the display behavior according to real-time shutter position feedback, ensuring that the through image is displayed during periods when the shutter is fully open while avoiding display during shutter operation, thus maintaining both image pickup efficiency and object tracking continuity
Data Source
AI summary
According to the present invention, an image pickup apparatus includes, an image pickup control unit which drives shutter unit and picks up a still image by image pickup device, captures a first through image by the image pickup device when the shutter unit is opened, and picks up a second through image including a light-shielded area by the image pickup device, the light-shielded area being formed by shielding part of light incident upon imaging plane by the shutter unit when the shutter unit is half light-shielded, and a display control unit which causes a display device to display a through image using at least the first through image and the second through image.