Lens Module Carrier Nesting Coil and Sensor to Reduce Height
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Solution Overview
Problem
Conventional electronic devices with lens modules for autofocus have complex components that increase height, making it difficult to achieve a slim and thin design.
Innovation Solution
A moving mechanism comprising a carrier with an accommodating space, a coil, a sensing object, a base, magnetic members, and a position detector, where the coil surrounds the accommodating space and the sensing object is positioned between the coil and the position detector, allowing the carrier to move relative to the base when current flows through the coil, thereby adjusting the lens position and reducing the overall height.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex components are used to achieve autofocus functionality, then autofocus capability is improved, but device height increases
Solution Approach 1:
The sensing object is nested within the coil structure, with the coil surrounding the accommodating space and the sensing object positioned between the coil and the position detector. This nesting arrangement allows multiple components to occupy overlapping spatial volumes, reducing the overall height of the autofocus mechanism while maintaining all necessary functional elements.
Solution Approach 2:
The patent transitions from a traditional linear stacking arrangement to a three-dimensional spatial configuration where the coil wraps around the accommodating space and the sensing object is positioned in the间隙 between the coil and detector. This dimensional reorganization enables compact integration without increasing height.
2Length of stationary object
If the sensing object is positioned close to the position detector, then device height is reduced, but detection precision may be affected
Solution Approach 1:
The coil structure serves as an intermediary element between the sensing object and the position detector. The coil provides both the electromagnetic actuation function and a structural framework that maintains optimal spacing relationships, allowing the sensing object to be positioned close to the detector while preserving detection precision through the mediating coil structure.
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
This solution reduces the height of the moving mechanism and the electronic device by minimizing the distance between the sensing object and the position detector, enabling thinner device designs while maintaining effective autofocus functionality.
Implementation Method 1
When a current flows through the coil, the carrier moves relative to the base
Implementation Method 2
the position detector comprises a hall sensor, a magnetoresistance effect sensor, a giant magnetoresistance effect sensor, a tunneling magnetoresistance effect sensor
Data Source
AI summary
A moving mechanism for holding a lens is provided, including a carrier having an accommodating space, a coil, a sensing object, a base, at least one magnetic member, and a position detector, wherein the lens is disposed in the accommodating space. The coil and the sensing object are disposed on the carrier, and the coil surrounds the accommodating space. At least a portion of the coil is disposed between the sensing object and the accommodating space. The magnetic member and the position detector are disposed on the base, and the position detector is adjacent to the sensing object. When a current flows through the coil, the carrier moves relative to the base.