Adjustable Focus Lens Module Axial Movement Mechanism
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Solution Overview
Problem
Typical cameras face challenges in capturing clear images due to the lack of adjustability in their lenses, which prevents users from focusing them properly.
Innovation Solution
An adjustable lens module is introduced, featuring a housing, external and internal rings, and an internal movable barrel with a movable internal lens. This module allows for axial movement of the internal lens along the optical axis, enabling focus adjustment through a rotating external ring and internal ring mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If lenses are fixed in place to prevent misalignment, then alignment stability is improved, but adjustability deteriorates
Solution Approach 1:
The patent implements a dynamic lens system where the movable barrel can shift position along the optical axis relative to the fixed barrel. This allows the lens assembly to transition from a static configuration to a dynamic one, enabling focus adjustment while maintaining alignment stability through the coupled ring mechanism that ensures coordinated movement.
2Manufacturing precision
If lenses are connected to a frame for alignment, then alignment precision is improved, but device complexity deteriorates
Solution Approach 1:
The lens assembly is divided into two distinct barrels: a fixed barrel containing fixed lenses and a movable barrel containing movable lenses. This segmentation allows each barrel to be independently aligned and focused, simplifying the overall structure while maintaining high alignment precision through the modular design.
3Reliability
If lenses are constrained to prevent misalignment, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The movable barrel is nested within the fixed barrel, with the movable barrel positioned inside the fixed barrel structure. This nested configuration allows the movable barrel to slide in and out along the optical axis for focus adjustment while the fixed barrel provides a stable outer framework that maintains alignment reliability.
Data Source
AI summary
An image capture device includes a lens barrel disposed in a body of the image capture device and an adjustable lens module coupled to the lens barrel. The adjustable lens module includes a housing, an external ring, an internal ring, and an internal movable barrel. The external ring is coupled to the housing and configured to rotate about an optical axis. The internal ring is coupled to the housing and configured to rotate about the optical axis based upon rotation of the external ring about the optical axis. The internal movable barrel includes a movable internal lens, is coupled to the internal ring, and is configured to move axially along the optical axis based upon rotation of the internal ring.