Optical Module With Lens And Prism For High Speed Signal Transfer
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Solution Overview
Problem
Current electronic devices face challenges in achieving high-speed signal transfer due to limitations in traditional signal transfer methods, such as high resistance and heat generation, which are addressed by exploring optical communication technologies using silicon photonics and optical fiber integration.
Innovation Solution
An optical module is designed with a substrate, optical waveguide, and a light source including a lens and prism configuration that emits parallel light, utilizing specific refractive indices and materials like SiC, GaN, and polyimide to enhance optical coupling efficiency and reduce parasitic capacitance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional signal transfer methods are used in electronic devices, then device complexity is reduced, but signal transfer speed decreases and heat generation increases
Solution Approach 1:
The patent embeds optical components (light source, lens, prism, optical waveguide) directly within the PCB structure, nesting the optical communication system inside the existing electronic device framework. This allows optical signal transfer to be integrated into the PCB without requiring separate external optical modules, thereby increasing signal transfer speed while managing device complexity through compact integration.
Solution Approach 2:
The patent introduces an optical fiber as an intermediary medium between electronic components, enabling light-based signal transfer instead of traditional electrical signals. This intermediary optical fiber allows high-speed signal transmission and reduces heat generation and parasitic capacitance effects inherent in electrical signal transfer methods.
2Speed
If optical fiber communication technology is inserted into PCB, then signal transfer speed increases, but manufacturing precision requirements increase
Solution Approach 1:
The patent incorporates the light source, lens, and prism directly onto the PCB during the manufacturing process, performing preliminary positioning and alignment of optical components before final assembly. This preliminary action ensures that optical components are pre-aligned with the optical waveguide, reducing the need for complex post-assembly adjustments and managing manufacturing precision requirements.
Solution Approach 2:
The patent combines multiple optical components (light source, lens, prism) and the optical waveguide into a single integrated PCB structure. By merging these components into one unified system, the patent reduces the number of separate alignment operations required and simplifies the manufacturing process, thereby managing manufacturing precision requirements while maintaining high signal transfer speed.
3Reliability
If lens and prism are added to light source, then optical coupling efficiency increases, but device complexity increases
Solution Approach 1:
The patent nests the lens and prism directly within the light source assembly, embedding these optical components inside the existing light source structure. This nesting approach improves optical coupling efficiency by ensuring precise positioning of the lens and prism relative to the light emitting element, while managing device complexity by integrating components into a compact unified structure rather than adding separate external elements.
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 optical module effectively transfers signals at high speeds with reduced resistance and heat generation, improving the integration and performance of electronic devices by maximizing optical coupling efficiency and minimizing signal loss.
Implementation Method 1
a light source configured to provide light into the optical waveguide, wherein the light source includes a lens
Implementation Method 2
a light transmission part on the adhesive layer
Data Source
AI summary
The present invention includes a substrate, an optical waveguide on the substrate, a light source configured to provide light into the optical waveguide, and a prism between the light source and the optical waveguide. The light source includes a lens.