Optical-Electrical Connector Collimating Lens Misalignment
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Solution Overview
Problem
Existing optical-electrical transmission systems face issues such as optical axis misalignment, high propagation loss, limited bus density, and the need for special high-temperature resistant materials, particularly in active interposer, free-space transmission, optical connector connection, light guide embedding, and surface mounting systems.
Innovation Solution
The use of optical-electrical transmission connectors with ring-shaped inclined surfaces and collimating lenses that reduce optical axis misalignment and propagation loss, allowing for increased bus density without the need for special high-temperature resistant materials, by employing a design where collimating lenses face each other and light guides are not integrated with optical devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If optical devices are directly mounted on interconnection boards in existing optical-electrical transmission systems, then optical axis misalignment and propagation loss occur, but the patent employs collimating lenses facing each other with ring-shaped inclined surfaces to reduce misalignment and loss
Solution Approach 1:
The patent introduces collimating lenses as intermediary components between optical devices and interconnection boards. These lenses convert divergent light from optical devices into parallel light, enabling accurate transmission over longer distances without direct mounting contact, thereby reducing both misalignment and propagation loss
Solution Approach 2:
The patent transitions from direct planar mounting to three-dimensional spatial arrangement by positioning collimating lenses at specific distances from optical devices and interconnection boards. This dimensional change allows light to be collimated in space before reaching the board, improving alignment tolerance and reducing loss
2Ease of manufacture
If light guides are integrated with optical devices in existing systems, then high-temperature resistant materials are required, but the patent separates light guides from optical devices to use commonly available materials
Solution Approach 1:
The patent segments the optical transmission system into separate functional components: optical devices mounted on one interconnection board and light guides mounted on another board. This segmentation allows each component to be manufactured with appropriate materials independently, using commonly available materials for light guides while maintaining high-temperature resistance through proper device-board integration
Solution Approach 2:
The patent introduces collimating lenses as intermediary components that bridge optical devices and light guides. This intermediary arrangement eliminates the need for direct integration of light guides with optical devices, allowing light guides to be made from commonly available materials while the collimating lenses ensure proper optical coupling
3Quantity of substance
If fine-pitch interconnection coupling is used to increase bus width, then interconnection pitch is reduced, but optical axis misalignment becomes more critical
Solution Approach 1:
The patent replaces direct mechanical mounting of optical devices with optical coupling through collimating lenses. This substitution allows for larger tolerances in positioning while maintaining fine-pitch interconnection coupling, as the collimating lenses create parallel light beams that are less sensitive to lateral displacement
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
This design effectively reduces optical axis misalignment and propagation loss, enables a higher number of buses, and allows for the use of commonly available materials, improving the reliability and efficiency of optical-electrical transmission systems.
Implementation Method 1
one or a plurality of first collimating lenses arranged in a light-passing region where light emitted from or entering into the one or the plurality of optical devices passes through
Data Source
AI summary
An optical-electrical transmission connector having resistance to optical axis misalignment, having small loss, easily increasing the number of buses, and capable of being formed of a commonly-used material is provided. In a male connector, one collimating lens facing the other collimating lens when connecting the male connector to a female connector is arranged, and a light guide is arranged corresponding to the focal point of the one collimating lens. A positioning section is arranged corresponding to surroundings of the one collimating lens, and the positioning section has one inclined surface coming into contact with the other inclined surface when connecting the male connector to the female connector.