Optical Zoom Lens Module with Nested Tracking Controllers
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Solution Overview
Problem
Conventional optical zoom lens modules in mobile devices require a longer main shaft due to the formation of spans between lens holders, which affects the device's thickness and optical zooming efficiency.
Innovation Solution
The optical zoom lens module employs two tracking controllers that cover each other, eliminating the span issue by allowing the lens holders to move along the main shaft without forming a contact that increases the height, utilizing an arc guiding plate and transmission mechanism with a gear and driving motor to adjust the lens distance for zooming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two lens holders are disposed on the main shaft with spans between them, then the optical zoom lens module can achieve zooming function, but the height of the main shaft increases
Solution Approach 1:
The first tracking controller is disposed inside the second tracking controller, and the second tracking controller is disposed inside the first lens holder. This nested arrangement allows the lens holders to move along the main shaft for zooming while the tracking controllers occupy overlapping spaces, eliminating the need for additional span height and reducing the overall main shaft height.
Solution Approach 2:
The patent transitions from a one-dimensional linear arrangement where lens holders are separated by spans along the main shaft, to a multi-dimensional nested arrangement where tracking controllers occupy overlapping three-dimensional spaces. This dimensional change allows the same zooming function to be achieved with reduced height by utilizing spatial overlap rather than linear separation.
2Length of stationary object
If the height of the main shaft is reduced to make the device thinner, then the device thickness decreases, but the moving distance of lens holders may become insufficient
Solution Approach 1:
By nesting the tracking controllers within each other and within the lens holders, the patent creates overlapping spatial zones that allow the lens holders to achieve sufficient moving distance for zooming operations without requiring a taller main shaft. The nested structure efficiently utilizes the available height space.
Solution Approach 2:
The tracking controllers are designed to move dynamically along the main shaft to adjust the relative positions of the lens holders during zooming operations. This dynamic adjustment mechanism ensures that sufficient moving distance is available within the reduced height constraints of the main shaft.
Data Source
AI summary
An optical zoom lens module including a base, a first lens holder, a first tracking controller, a first lens, a second lens holder, a second tracking controller, and a second lens is provided. The base has a main shaft, a secondary shaft, and an opening. The first and second lens holders having a first and a second fixing portion disposed to the secondary shaft are disposed on the base. The first and second tracking controllers covering each other and connected to the first and the second lens holders cover the main shaft. The first lens is disposed on the first lens holder and above the opening. The second lens is disposed on the second lens holder and between the first lens and the opening. The first and second tracking controllers are suitable for moving along the main shaft to adjust the relative distance between the first and the second lens.