Zoom Lens Movable Frame Radial Storage
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Solution Overview
Problem
Conventional zoom lens systems require multiple lenses for different photographic purposes, leading to increased costs and inconvenience due to their fixed thickness and limited optical performance, as they cannot minimize thickness when retracted and lack the ability to select lens groups based on use.
Innovation Solution
A zoom lens system with a movable frame that positions selection lens groups outside the optical axis for storage, allowing for the selection of various lens groups by moving them between a photographing position on the optical axis and a storage position, thereby minimizing storage space and thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If multiple lens groups are aligned with as little space as possible for retraction, then the thickness of the zoom lens system is minimized, but the storage space for additional lens groups is insufficient
Solution Approach 1:
The patent positions additional lens groups outside the optical axis in a radial arrangement, utilizing the circumferential dimension rather than only the axial dimension. This allows multiple lens groups to be stored in a compact circular pattern around the optical axis, minimizing the axial thickness while providing sufficient storage space for multiple lens groups with different optical characteristics.
2Adaptability or versatility
If a single zoom lens system is used, then the device complexity is reduced, but the adaptability for different photographing purposes is limited
Solution Approach 1:
The patent integrates multiple lens groups with different optical characteristics (wide-angle, telephoto, macro) into a single zoom lens system. A movable frame positioned at the object side can selectively bring different lens groups onto the optical axis, allowing one lens system to perform multiple photographing functions that would traditionally require separate lens systems.
3Volume of stationary object
If lens groups are positioned outside the optical axis for storage, then the storage space is optimized, but the ease of operation for selecting lens groups is reduced
Solution Approach 1:
The patent employs a movable frame that can dynamically reposition between different lens groups positioned outside the optical axis. This dynamic mechanism allows the system to switch between various optical characteristics by moving the frame to bring the desired lens group onto the optical axis, maintaining ease of operation despite the compact radial storage arrangement.
Data Source
AI summary
A zoom lens system including at least one lens group that is positioned to be movable along an optical axis of image light for photographing; and a movable frame including a plurality of selection lens groups, the movable frame being movable between a photographing position and a storage position, wherein the photographing position is a position in which one of the selection lens groups is selectively positioned on the optical axis, and the storage position is a position in which all of the selection lens groups are outside the optical axis, and the movable frame including a storage portion that houses at least a portion of the at least one lens group when the movable frame is moved to the storage position.