Integrated Lens VCM Optical Detection Fixing Structure
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Solution Overview
Problem
Existing detection devices cannot assess the optical performance of a camera module's lens when it is integrated with a voice coil motor (VCM), as they cannot detect the working state of the lens when it is driven by the VCM, leaving room for improvement in evaluating the lens's optical quality.
Innovation Solution
A fixing structure comprising a first and second supporting disc with receiving grooves and an electronic connector, allowing the voice coil motor and lens to be integrated and tested for optical performance, with coils for energization and an optical detection module to assess the lens's performance when moving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the lens and VCM are tested independently using existing detection devices, then the testing process is simple and devices are readily available, but the optical performance of the lens when driven by the VCM cannot be detected
Solution Approach 1:
The patent combines the lens, VCM, and optical detection module into a single integrated detection device. The lens is positioned on the detection platform, the VCM is mounted on the lens, and the optical detection module is arranged to detect light passing through the lens while the VCM drives the lens to move, enabling detection of optical performance in the cooperative working state.
Solution Approach 2:
The detection device is designed to perform multiple functions: it can detect the optical performance of the lens when driven by the VCM, and the structural design allows for versatile testing capabilities that accommodate the integrated lens-VCM assembly while maintaining detection accuracy.
2Reliability
If an integrated detection setup is designed to test lens and VCM together, then the optical performance in cooperative state can be detected, but the device structure becomes complex
Solution Approach 1:
The detection device is divided into distinct functional modules: a detection platform for positioning the lens, a mounting structure for the VCM, an optical detection module for light detection, and a driving mechanism for the VCM. This modular segmentation allows for reliable integrated testing while managing structural complexity through organized functional divisions.
Solution Approach 2:
The detection platform serves as an intermediary structure that positions the lens and supports the VCM mounting structure. The optical detection module acts as an intermediary to detect light passing through the lens while the VCM drives the lens, enabling reliable detection of optical performance in the cooperative state without requiring direct complex integration of all components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the detection of optical performance of the lens when driven by the voice coil motor, allowing for the evaluation of the lens's quality in conjunction with the VCM, improving the assessment of the camera module's optical performance.
Implementation Method 1
a voice coil motor (VCM) for driving the lens to move
Data Source
AI summary
A fixing structure includes a first supporting disc, a second supporting disc, and an electronic connector. The first supporting disc defines a first through hole. The second supporting disc is movably connected to the first supporting disc. The second supporting disc defines a first receiving groove for receiving a voice coil motor having a lens. The second supporting disc further defines a second through hole passing through a bottom of the first receiving groove. The first through hole and the second through hole are coaxial. The electronic connector is disposed on the second supporting disc, and can be electrically connected to the voice coil motor and an external power supply.