Zoom Actuator Carrier Layout for Compact Collision-Free Motion
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Solution Overview
Problem
Conventional actuators for zoom lenses are bulky due to independent movement spaces for multiple carriers, making them unsuitable for compact devices like smartphones, and suffer from collisions and noise due to carrier interference.
Innovation Solution
The actuator design includes symmetrical carriers with guide and supporting parts that allow independent movement, limited separation distance, and dampers to prevent collisions, while incorporating larger magnets for enhanced driving force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If independent movement spaces are provided for multiple carriers, then each carrier can move independently, but the actuator size becomes enlarged
Solution Approach 1:
The patent implements nesting by placing the first carrier inside the second carrier, allowing both carriers to move independently while sharing the same spatial envelope. The first carrier is positioned within the interior space of the second carrier, enabling compact integration without compromising independent movement capability of each carrier.
2Volume of moving object
If carriers are positioned close to each other, then space utilization is improved, but collision due to mutual interference occurs
Solution Approach 1:
The patent introduces a limiting member as an intermediary element between the first and second carriers. This limiting member physically restricts the relative movement between carriers, preventing them from colliding while allowing them to be positioned close together for compact space utilization.
3Ease of operation
If carriers are allowed to move freely, then driving flexibility is improved, but noise and impact occur when carriers contact housing
Solution Approach 1:
The patent applies damping members to the carriers before they can contact the housing during operation. These damping members provide cushioning that absorbs impact energy and reduces noise generation, allowing the carriers to move freely within controlled limits without causing harmful contacts.
Data Source
AI summary
An actuator for driving zoom includes a first carrier, wherein the first carrier includes a first mounter and a first lens assembly is mounted on the first mounter, a first supporting part provided on a first side of the first mounter and extending in a first direction, and a first guider provided on a second side of the first mounter and extending in the first direction. A second carrier includes a second mounter, wherein a second lens assembly is mounted on the second mounter, a second supporting part provided on a first side of the second mounter and extending in a second direction opposite to the first direction, and a second guider provided on a second side of the second mounter and extending in the second direction. A first passage provided between the first mounter and the first supporting part and the second guider is inserted into the first passage.