Optical Fiber-Lens Spacing Using a Transmissive Spacer
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Solution Overview
Problem
Existing optical devices face challenges in easily and quickly adjusting the distance between optical components, which affects optical transmission efficiency.
Innovation Solution
Incorporating a transmissive component between the optical components, allowing for adjustable thickness to extend the distance between the lens and the optical fiber, enabling precise positioning and easy adjustment without moving the components, using a method that includes provisional arrangement, determination, and fixation of the transmissive component based on optical axis positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between optical components is adjusted by moving components, then the transmission efficiency is improved, but the ease of operation deteriorates due to complex adjustment procedures
Solution Approach 1:
A transmissive component (such as a glass plate or spacer) is introduced as an intermediary element between the optical fiber and the lens. This component serves as a mediator that precisely controls the air gap distance without requiring movement of the optical components themselves. The transmissive component can be adjusted in thickness or position to optimize transmission efficiency while keeping the optical components fixed, thereby improving ease of operation.
Solution Approach 2:
The invention changes the parameter of the transmissive component (such as its thickness, refractive index, or position) to control the effective distance between optical components. By adjusting the thickness of the transmissive component or its position relative to the optical fiber and lens, the optimal air gap can be achieved without moving the optical components, making the adjustment process simpler and more reliable.
2Manufacturing precision
If the distance between optical components is fixed during manufacturing, then the manufacturing precision is improved, but the adaptability deteriorates when adjustments are needed
Solution Approach 1:
The transmissive component acts as an adjustable intermediary that decouples the manufacturing fixation from operational adjustability. During manufacturing, the transmissive component can be temporarily positioned to achieve precise alignment, and then it can be adjusted later by replacing it with components of different thicknesses or modifying its position, providing adaptability without compromising initial positioning precision.
Solution Approach 2:
The invention introduces dynamic adjustability through the transmissive component while maintaining static fixation of the optical components. The transmissive component can be replaced or repositioned to change the effective distance, allowing the system to adapt to different requirements while the optical components remain fixed in their precisely manufactured positions.
3Ease of manufacture
If adhesive is used to fix optical components, then the ease of manufacture is improved, but the reliability deteriorates due to adhesive deterioration causing misalignment
Solution Approach 1:
The transmissive component serves as a mechanical intermediary that provides stable positioning between the optical fiber and lens without relying on adhesive bonds. By using the transmissive component as a spacer or support structure, the optical components can be maintained at the correct distance and alignment without adhesive, eliminating the reliability issues associated with adhesive deterioration while still allowing easy assembly through mechanical fixation.
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 configuration allows for easier and faster adjustment of the optical device, maintaining high transmission efficiency even with manufacturing variations, and reduces the risk of misalignment or tilting due to adhesive deterioration.
Implementation Method 1
a transmissive component interposed between the optical fiber and the lens and configured to transmit light
Implementation Method 2
a lens and configured to either focus and couple the light to the optical fiber or collimate the light emitted from the optical fiber
Implementation Method 3
focus and couple the light to the optical fiber or collimate the light emitted from the optical fiber
Data Source
AI summary
An optical device includes: a first optical component configured to transmit light between a first end and a second end; a second optical component configured to either focus and couple the light to the first end or collimate the light emitted from the first end; and a transmissive component interposed between the first optical component and the second optical component and configured to transmit the light emitted from the first end or incident on the first end, and make a distance between the second optical component and the first end longer than in a case without the transmissive component.