Optical Module Assembly Device Using Beam Splitting Prism for Lens Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical module assembly methods, such as tooling or manual assembly, result in significant errors affecting the optical performance of the assembled modules due to inadequate alignment accuracy.
Innovation Solution
An optical module assembly device featuring a fixing member, power supply, alignment mechanism with a beam splitting prism and image acquisition devices, and a controller to adjust the lens position based on captured images, ensuring precise three-axis alignment and reducing assembly tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tooling or manual assembly is used to assemble lenses in the optical module, then the assembly process is simple and easy to operate, but the assembly accuracy is low with large errors affecting optical performance
Solution Approach 1:
The patent replaces manual/tooling assembly with an automated assembly device that uses image acquisition devices to capture lens positions and a controller to calculate and drive adjustment mechanisms. This substitutes mechanical manual operation with an automated system combining vision sensing and precise positioning, achieving high assembly accuracy while maintaining operational simplicity.
Solution Approach 2:
The assembly device performs self-alignment through image acquisition and automatic calculation of lens positions. The system captures images, calculates actual positions, compares with target positions, and automatically drives adjustment mechanisms without requiring manual intervention for alignment, enabling the system to self-correct assembly errors.
2Manufacturing precision
If automated alignment with image acquisition devices is implemented, then assembly accuracy is significantly improved, but the device complexity and cost increase
Solution Approach 1:
The patent introduces image acquisition devices as intermediaries between the lens and the measurement system. These devices capture optical images of the lens, which are then processed by a controller to determine lens position. This intermediary approach enables non-contact, high-precision measurement without requiring direct physical measurement tools, reducing complexity while improving accuracy.
Solution Approach 2:
The system implements a closed-loop feedback mechanism where image acquisition devices continuously monitor lens positions, the controller calculates deviations from target positions, and adjustment mechanisms automatically correct errors. This real-time feedback loop ensures high assembly accuracy by continuously comparing actual positions with desired positions and making corrective adjustments.
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
The device effectively improves assembly accuracy and optical performance by enabling precise alignment of optical components, reducing assembly errors and enhancing the overall performance of optical modules.
Implementation Method 1
a beam splitting prism with an in-light surface close to the optical member to be assembled, a first image acquisition device close to a first out-light surface of the beam splitting prism and coaxial with the first out-light surface, and a second image acquisition device close to a second out-light surface of the beam splitting prism and coaxial with the second out-light surface
Data Source
AI summary
Provided is an optical module assembly device, including: a fixing member for fixing an optical member to be assembled, a power supply component for supplying power to the optical member to be assembled, and an alignment mechanism for placing a lens to be assembled at the specified position; a beam splitting prism with an in-light surface close to the optical member to be assembled, a first image acquisition device close to a first out-light surface of the beam splitting prism and coaxial with the first out-light surface, and a second image acquisition device close to a second out-light surface of the beam splitting prism and coaxial with the second out-light surface; and a controller configured to control the alignment mechanism to adjust a position of the lens to be assembled according to the images captured by the first image acquisition device and the second image acquisition device.