Optical Coupling Device With Under Positioning Portions
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Solution Overview
Problem
Conventional optical coupling devices require a long time and often fail to achieve precise alignment during assembly, leading to inefficiencies in optical signal transmission.
Innovation Solution
An optical coupling device design incorporating an optical coupling member with a reflective face and under positioning portions, combined with an optical-electrical converting module and optical fibers, featuring complementary holes and protrusions for precise alignment, and using aspheric lenses for efficient signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional optical coupling devices are assembled using labor or machine alignment methods, then optical signal transmission can be achieved, but the alignment process takes a long time and may not achieve precise alignment
Solution Approach 1:
The patent applies preliminary action by pre-designing complementary positioning structures (protrusions and recesses) on the optical coupling member and optical connector before assembly. These structures are manufactured in advance with precise geometric relationships, so that during assembly they automatically guide and constrain the relative positions of components, eliminating the need for time-consuming alignment operations while ensuring precise positioning.
Solution Approach 2:
The patent uses positioning protrusions and recesses as intermediary elements that mediate the alignment between the optical coupling member and optical connector. These intermediary structures translate the complex alignment task into a simple mechanical engagement process, where the protrusions fit into the recesses to automatically establish the correct spatial relationship between components.
2Productivity
If labor-based alignment methods are used for assembling optical coupling devices, then flexibility in handling is maintained, but alignment precision and efficiency are reduced
Solution Approach 1:
The positioning structures are pre-configured during manufacturing with exact dimensional relationships, enabling both high-speed assembly and precise alignment to be achieved simultaneously. The protrusions and recesses are designed with specific tolerances that ensure accurate positioning while allowing rapid mechanical engagement.
Solution Approach 2:
The optical coupling device performs self-alignment through its built-in positioning structures. When the optical connector is inserted into the optical coupling member, the complementary protrusions and recesses automatically guide the components into their correct relative positions without requiring external alignment tools or operator intervention, thereby achieving both high efficiency and high precision.
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 enables fast and precise optical alignment, reducing assembly time and improving coupling efficiency while allowing for bi-directional transmission and adaptability to various optical fiber conditions.
Implementation Method 1
an optical signal transmits into the optical coupling member via the lens portion, and then is reflected by the reflective face to leave the optical coupling member
Implementation Method 2
an optical signal transmits into the optical coupling member via the lens portion
Implementation Method 3
The optical-electrical converter is received in the receiving portion of the base to receive an electrical signal and convert the electrical signal into an optical signal, or receive an optical signal and convert the optical signal into an electrical signal
Data Source
AI summary
An optical coupling device includes an optical coupling member, an optical-electrical converting module, and at least two optical fibers. The optical coupling member has a first under positioning portion. The optical-electrical converting module has a substrate, a base, an optical signal transmitter, and an optical signal receiver. The base is made of an insulating material and is provided on the substrate. The base has a receiving portion and a second under positioning portion to engage the first under positioning portion. The optical signal transmitter and the optical signal receiver are receiving in the receiving portion and face the first lens portion when the second under positioning portion engages the first under positioning portion. The optical fibers are beside the optical coupling member and face the second lens portion.