Camera Fill Light Reflector Angle Control for Overexposure
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Solution Overview
Problem
Photographing modules face issues with overexposure due to fill light reflection and insufficient or uneven ambient light distribution, leading to loss of image details.
Innovation Solution
A light source angle-adjustment device with a light-emitting member, reflecting member, and driving member that adjusts the emission angle to prevent fill light from intensely entering the camera lens by rotating the reflecting member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the fill light device emits light along the photographing direction to provide sufficient ambient light, then the illumination intensity is improved, but the reflected light intensely enters the camera lens causing overexposure
Solution Approach 1:
The reflecting member is made rotatable around an axis to dynamically adjust the reflection angle. The driving member enables the reflecting member to rotate between different angles, allowing the system to adapt to different environmental conditions and avoid overexposure while maintaining sufficient illumination
Solution Approach 2:
The system changes the reflection angle parameter by rotating the reflecting member. By adjusting the angle between the light path and the reflecting surface, the system optimizes light distribution while preventing intense reflected light from entering the camera lens
2Illumination intensity
If the light source emits light to fill dark portions, then the illumination of dark areas is improved, but loss of details in dark portions occurs due to overexposure
Solution Approach 1:
The rotatable reflecting member allows dynamic adjustment of light reflection angles. This enables the system to provide illumination to dark portions while controlling the reflection direction to prevent overexposure that would cause loss of image details
Solution Approach 2:
The system uses feedback control where the driving member adjusts the reflecting member's angle based on detection of light reflection conditions, optimizing the balance between illuminating dark areas and preventing overexposure loss of details
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
Prevents overexposure and ensures even light distribution by adjusting the light path to avoid fill light reflection, effectively filling in when ambient light is insufficient.
Implementation Method 1
The reflecting member has a reflecting surface. The reflecting surface reflects the light emitted by the light-emitting member.
Data Source
AI summary
A light source angle-adjustment device is adapted to be disposed adjacent to a camera lens and includes a light-emitting member, a reflecting member, and a driving member. The light-emitting member has a light outlet. A light of the light-emitting member is emitted from the light outlet along a light path. The light outlet faces away from the camera lens and faces the reflecting member. The reflecting member is disposed in the light path of the light-emitting member. The reflecting member has a reflecting surface reflecting the light emitted by the light-emitting member. The driving member is connected to the reflecting member and drives the reflecting member to rotate around an axis to change an angle provided between the light path and the reflecting surface.