Optical Module Lens Assembly for Reduced Signal Loss
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Solution Overview
Problem
Existing optical modules face challenges in efficiently converting optical signals to electrical signals and vice versa, particularly in long-distance communication systems, with issues related to signal loss and the need for compact, cost-effective designs that facilitate easy installation and electromagnetic interference mitigation.
Innovation Solution
The optical module incorporates a shell, circuit board, light-transmitting and receiving chips, a lens assembly, and a claw assembly, with a claw assembly that optically connects to an optical fiber, and a lens assembly that changes the propagation direction of optical signals, all housed within a metal shell for electromagnetic shielding and heat dissipation, facilitating efficient signal conversion and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a metal shell is used for electromagnetic shielding and heat dissipation, then electromagnetic interference protection and thermal management are improved, but manufacturing cost and device weight increase
Solution Approach 1:
The optical module is divided into multiple functional components (circuit board, lens assembly, claw assembly, metal shell) that can be manufactured separately and assembled together. The metal shell is designed as a separate electromagnetic shielding enclosure that can be produced independently using standard metal forming processes, reducing overall manufacturing complexity and cost while maintaining shielding effectiveness.
2Volume of moving object
If the optical module is designed to be compact, then installation space is reduced, but heat dissipation efficiency and signal transmission quality may deteriorate
Solution Approach 1:
The metal shell serves multiple functions simultaneously: it provides electromagnetic shielding, acts as a heat dissipation structure through its metallic properties, and maintains structural integrity. The lens assembly is positioned in a three-dimensional arrangement within the shell that optimizes both compactness and thermal pathways, allowing heat to conduct through the metal enclosure to external heat sinks.
3Manufacturing precision
If positioning slots and protrusions are used for precise assembly, then assembly precision is improved, but device complexity increases
Solution Approach 1:
The positioning slots on the circuit board and corresponding positioning protrusions on the claw assembly create a self-aligning mechanism during assembly. These features automatically guide the components into their correct relative positions without requiring additional alignment tools or complex fixture systems, achieving high assembly precision through the component geometry itself.
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 design achieves efficient signal conversion with reduced signal loss, lowers manufacturing costs, and provides a stable, compact, and easily installable solution with enhanced electromagnetic interference protection.
Implementation Method 1
The lens base covers the at least one of the light-transmitting chip or the light-receiving chip, and is configured to change a propagation direction of an optical signal incident into the lens assembly
Implementation Method 2
The light-transmitting chip is configured to generate an optical signal
Implementation Method 3
the light-receiving chip is configured to receive an optical signal from an outside of the optical module
Implementation Method 4
all housed within a metal shell for electromagnetic shielding and heat dissipation
Implementation Method 5
all housed within a metal shell for electromagnetic shielding and heat dissipation
Data Source
AI summary
An optical module includes a shell, a circuit board, at least one of a light-transmitting chip or a light-receiving chip, a lens assembly and a claw assembly. The lens assembly includes a lens base and a connecting part. The lens base covers the at least one of the light-transmitting chip or the light-receiving chip, and is configured to change a propagation direction of an optical signal incident into the lens assembly. The connecting part includes at least one positioning slot disposed on a surface of the connecting part facing away from the lens base. The claw assembly includes a claw and a through hole. The claw includes at least one positioning protrusion disposed on a surface of the claw facing the connecting part. The through hole is configured to be connected to an optical fiber outside the optical module.