Compact Camera Aperture Module With Synchronized Gear Blades
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Solution Overview
Problem
Existing apertures in single-lens reflex cameras are too large for integration into small electronic devices like mobile phones and tablet computers, limiting their ability to achieve continuous variable aperture adjustment for improved camera quality.
Innovation Solution
A compact aperture module design featuring a base, blade group, gear carrier, and driving member, allowing for continuous adjustment of the light entering hole through a gear mechanism, enabling synchronization of blade rotation and reducing module thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional aperture mechanism from single-lens reflex cameras is used, then continuous variable aperture adjustment is achieved, but the module size becomes too large for integration into small electronic devices
Solution Approach 1:
The aperture module is divided into independent functional components: a blade group with multiple blades, a gear carrier with multiple gears, and a driving member. Each blade is independently controllable through the gear mechanism, allowing continuous adjustment while maintaining a compact overall structure suitable for mobile devices.
Solution Approach 2:
The gear carrier is disposed within the base, and the blade group is arranged around the light passing hole in a nested configuration. The gears are meshed with racks on the gear carrier, creating a compact nested structure that reduces the overall module size while enabling continuous aperture adjustment.
2Volume of moving object
If the aperture module is reduced in size for mobile device integration, then device compatibility is improved, but the complexity of achieving synchronized blade rotation increases
Solution Approach 1:
The gear carrier serves multiple functions simultaneously: it holds multiple gears, provides a mounting structure for the blades, and enables synchronized rotation of all blades through the gear-rack meshing mechanism. This multi-functionality reduces overall device complexity while maintaining compact size.
Solution Approach 2:
The gear-rack mechanism acts as an intermediary between the driving member and the blades. The gear carrier with meshed gears translates the driving motion into synchronized rotational movement of all blades, simplifying the control mechanism while ensuring precise coordination.
3Length of stationary object
If a compact gear mechanism is used to reduce module thickness, then device thinness is achieved, but the precision of aperture adjustment may be compromised
Solution Approach 1:
The aperture mechanism uses dynamic gear-rack meshing to achieve continuous variable adjustment. The gears on the gear carrier can rotate smoothly along the racks, providing continuous and precise aperture control within a thin profile, rather than relying on fixed discrete positions.
Solution Approach 2:
The mechanism changes the angular position parameter of the blades continuously through gear rotation. By varying the rotation angle of the gear carrier, the aperture size can be precisely adjusted across a continuous range while maintaining a compact thickness.
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
Enables continuous aperture adjustment in a compact form factor suitable for small electronic devices, enhancing camera performance and adapting to the trend of lightweight and thin designs.
Implementation Method 1
a gear is disposed on the blade, and the blade is capable of rotating around the gear in a direction towards or away from a center of the light entering hole
Implementation Method 2
the gear carrier is provided with a plurality of racks, and the gear carrier is meshed with the gears through the racks
Data Source
AI summary
An aperture module, a camera module, and an electronic device are disclosed. The aperture module includes a base, a blade group, a gear carrier, and a driving member. A light passing hole is formed in the base. The blade group is disposed on the base and includes a plurality of blades. A light entering hole opposite to the light passing hole is formed among the plurality of blades. The driving member is connected to the gear carrier. The driving member is capable of driving the gear carrier to move relative to the base. In a process in which the gear carrier moves relative to the base, the gear carrier drives the blades in the blade group to rotate relative to the base in the direction towards or away from the center of the light entering hole, to adjust the size of the light entering hole.