Lens Structure with Nested Guider for Extended Optical Zoom Path
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Solution Overview
Problem
Conventional lens structures with reduced thickness face limitations in optical zooming due to restricted barrel movement, which restricts the length of the optical zooming path.
Innovation Solution
A lens structure comprising a first barrel, at least one guider, and a second barrel, where the guider slides within a groove of the first barrel and the second barrel moves with the guider, allowing the first barrel to extend its optical zooming path by sliding a pin into a groove of the second barrel, enabling straight-line movement and adjustment between close, wide-angle, and telephoto ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the thickness of the lens structure is reduced, then the compactness is improved, but the length of the optical zooming path is restricted
Solution Approach 1:
The guider is disposed inside the first groove of the first barrel, and the second barrel moves with the guider through the first limiting portion. This nested arrangement allows multiple components to occupy the same spatial envelope, enabling the optical zooming mechanism to achieve extended movement path within a reduced overall thickness of the lens structure.
Solution Approach 2:
The invention introduces a multi-dimensional movement mechanism where the guider slides within the first groove while the second barrel moves with the guider through the first limiting portion. This creates a compound movement path that extends the optical zooming trajectory in multiple directions rather than a single linear path, effectively prolonging the zooming path length within compact thickness.
2Device complexity
If the forwarding barrel moves in a straight line through a groove to change focus, then the focusing mechanism is simplified, but the optical zooming path length is restricted by the barrel thickness
Solution Approach 1:
The guider structure is nested within the first groove of the first barrel, creating a compact arrangement that maintains simple focusing mechanism while extending the optical path. The second barrel is nested within the guider structure, allowing it to move through the first limiting portion in conjunction with the guider's movement, thereby achieving extended zooming path without increasing overall device complexity.
Solution Approach 2:
The focusing and zooming functions are segmented into separate movement mechanisms: the guider handles the primary focusing movement through the first groove, while the second barrel provides additional movement through the first limiting portion. This segmentation allows each component to contribute to the overall optical path length without requiring any single component to be overly complex or lengthy.
Data Source
AI summary
A lens structure is provided. The lens structure comprises a first barrel, at least one guider and a second barrel. The first barrel has a first groove, and comprises a first pin. The guider is slidably set to the first groove. The guider comprises a main body, a first limiting portion and a second limit portion. The main body has a first end and a second end opposite to the first end. The first limiting portion is connected to the main body and located between the first end and the second end. The second limiting portion is connected to the second end. The second barrel moves with the guider through the first limiting portion and has a second groove to which the first pin of the first barrel is set.