Periscope Camera Reflective Element Stabilization
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Solution Overview
Problem
Periscope cameras in electronic devices are prone to positional deviations when impacted, leading to inaccurate light redirection and compromised image sensing capabilities.
Innovation Solution
Integration of a gyroscope within the electronic device to detect shaking and provide feedback for the processing chip to control the camera assembly, combined with a reflective element stabilization mechanism using a mounting base and limiting structure to prevent positional deviations of the reflective element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the periscope camera uses a reflective element to redirect light, then the optical length can be extended to improve image quality, but the reflective element may shift position when impacted, affecting normal camera operation
Solution Approach 1:
The camera module is divided into separate functional components: a lens assembly, a reflective element mounted on an independent mounting seat, and a driving device. This segmentation allows the reflective element to be stabilized independently through the driving device while maintaining the optical path extension function.
Solution Approach 2:
The driving device receives feedback signals (implied through the control system) to adjust the position of the mounting seat and reflective element, compensating for shifts caused by impacts and maintaining stable light redirection.
2Volume of moving object
If the camera assembly size is reduced, then the electronic device can be more compact, but the optical anti-shake mechanism requires sufficient space to function effectively
Solution Approach 1:
The driving device incorporates an arc-shaped guide rail that enables rotational movement of the mounting seat along a curved path. This curved trajectory allows the reflective element to redirect light in a compact configuration while maintaining the necessary range of motion for optical anti-shake operation.
Solution Approach 2:
The system transitions from linear adjustment to rotational adjustment around an arc-shaped guide rail, utilizing angular movement in a different dimensional space to achieve anti-shake functionality within a reduced volume.
3Ease of operation
If the mounting seat rotates along the arc-shaped guide rail for optical anti-shake, then the friction is reduced and rotation is smooth, but the structure becomes more complex
Solution Approach 1:
The arc-shaped guide rail acts as an intermediary mechanical structure that facilitates smooth rotational movement between the driving device and the mounting seat. It provides a predefined curved path that reduces friction and guides the motion, simplifying the interaction between components.
4Reliability
If the light-converting element is made as an integrated structure, then the reliability is improved by preventing detachment during use or after dropping, but the manufacturing flexibility and adjustability are reduced
Solution Approach 1:
The light-converting element is divided into a light-converting portion and a mounting portion that can be separately manufactured and then assembled. This segmentation allows each part to be optimized for its specific function while maintaining overall reliability through proper connection design.
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
Enhances optical anti-shake functionality, reduces the size of the camera assembly while maintaining image stabilization, and improves the reliability of the reflective element by preventing positional shifts during impacts.
Implementation Method 1
Integration of a gyroscope within the electronic device to detect shaking and provide feedback for the processing chip to control the camera assembly
Implementation Method 2
The reflective element is configured to redirect the light incident into the periscope camera and transmit the light to an image sensor
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An imaging module (20), a camera assembly (100), and an electronic device (1000). The imaging module (20) comprises a housing (21), a light reflecting element (22), a mounting base (23), and an image sensor (26). The light reflecting element (22), the mounting base (23), and the image sensor (26) are all disposed in the housing (21). The housing (21) is provided with a light entrance (211). The mounting base (23) is disposed on the light reflecting element (22). The light reflecting element (22) is used for reflecting incident light incident from the light entrance (211) to enable the light to pass through the lens assembly (24) to reach the image sensor (26), so that the image sensor (26) senses the incident light outside the imaging module (20). The mounting base (23) is provided with a limiting structure (232). The limiting structure (232) is connected to the light reflecting element (22) to limit the position of the light reflecting element (22) on the mounting base (23).