Rotating Camera Display Orientation for Upward and Downward Shooting
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Solution Overview
Problem
Conventional imaging apparatuses fail to achieve desired display orientation when the optical axis is directed upward or downward, as the existing techniques for switching between normal and inverted display are inadequate for angles between 0° and 180°.
Innovation Solution
An imaging apparatus equipped with a main body part, a display part, and a rotation unit, utilizing first and second detection units to sense gravitational acceleration, and a calculation unit to determine the display part's opening/closing angle, dividing it into specific ranges for appropriate display states based on tilt angles, ensuring correct display orientation regardless of the optical axis direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional techniques are used to switch between normal and inverted display, then the display works correctly at 0° and 180°, but the display orientation becomes incorrect when the optical axis is directed upward or downward (between 0° and 180°)
Solution Approach 1:
The patent applies dynamics by making the display switching behavior adaptive rather than fixed. The system dynamically adjusts the display orientation based on the real-time detected angle between the optical axis and the display part, transitioning from static threshold-based switching to continuous angle-responsive switching that adapts to any camera orientation.
Solution Approach 2:
The patent changes the parameter of display orientation based on the detected angle parameter. By detecting the actual angle between the optical axis and display part and using this angle to determine whether to display in normal or inverted mode, the system adjusts the display parameter dynamically to match the camera's actual orientation.
2Ease of operation
If the display part is rotated to enable self-photographing, then the photographer can capture images from various angles, but the display orientation may not match the optical axis direction
Solution Approach 1:
The patent implements feedback by continuously detecting the angle between the optical axis and the display part, and using this feedback information to automatically adjust the display orientation. This closed-loop system ensures the display remains correctly oriented relative to the camera's actual pointing direction during self-photographing operations.
Solution Approach 2:
The system performs self-service by automatically detecting its own orientation state through the angle detection unit and autonomously adjusting the display without requiring manual intervention. The camera system itself monitors and corrects its display orientation based on the relationship between optical axis and display part.
3Device complexity
If magnetic field sensors and magnets are used to detect opening/closing state, then the detection is simple, but the system cannot accurately determine the angle between optical axis and display part
Solution Approach 1:
The patent replaces the magnetic field-based detection system with an acceleration sensor-based system. By using acceleration sensors to detect gravitational acceleration in different directions, the system can calculate the angle between the optical axis and display part, providing precise angular measurement without complex magnetic detection mechanisms.
Solution Approach 2:
The patent changes the detection parameter from magnetic field strength to acceleration vector components. By measuring acceleration in multiple directions and calculating the angle from these acceleration components, the system achieves precise angle measurement using simpler acceleration sensors rather than complex magnetic sensing systems.
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
Ensures desired display matching the optical axis direction by accurately determining the display part's angle and adjusting the display state accordingly, providing ease of use during self-photographing regardless of the camera's orientation.
Implementation Method 1
a first detection unit configured to detect information about gravitational acceleration applied to the main body part, a second detection unit configured to detect information about gravitational acceleration applied to the display part
Data Source
AI summary
An imaging apparatus includes a main body part including an imaging unit, a display part, a rotation unit, a first detection unit, a second detection unit, and a calculation unit, wherein, in a case where a first opening/closing angle range is determined by the calculation unit, a first display state is displayed on the display part, wherein, in a case where a second opening/closing angle range is determined by the calculation unit, a second display state is displayed on the display part, and wherein, in a case where a third opening/closing angle range is determined by the calculation unit, the first display state or the second display state is displayed on the display part in accordance with a tilt angle of the main body part with respect to gravity or a tilt angle of the display part with respect to gravity.