Light Guiding Pipe With Beam Splitter for Optical Signal Convergence
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Solution Overview
Problem
Wireless optical communication systems face issues with large scattering angles of light sources limiting effective propagation distance, light loss at large-angle edges, and difficulty in converging received optical signals into beams, leading to reduced photoelectric conversion efficiency and communication stability.
Innovation Solution
A light guiding pipe and light transceiver system that uses biconvex lenses and a beam splitter to collimate and diverge transmitted light beams and converge received light beams, with a zero-degree filter to enhance signal transmission and reception efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light source with wide reception range is used at the light receiving end, then it can receive optical signals in diverse optical bands, but it is difficult to only receive light of single wavelength and is prone to receiving light signals in diverse optical bands
Solution Approach 1:
The patent segments the optical reception function by using multiple photodiodes, each dedicated to a specific wavelength band (e.g., 850nm and 940nm). This segmentation allows each photodiode to specialize in detecting a particular wavelength, thereby achieving precise wavelength selection while maintaining the ability to receive multiple optical bands through the coordinated operation of multiple segmented receivers
2Area of stationary object
If the scattering angle of the light source is large, then the light can cover a wider area, but the effective propagation distance of the optical signal is limited and light loss at large-angle edges occurs
Solution Approach 1:
The patent employs dynamic beam control through adjustable lenses and mirrors that can change their focal length and orientation based on transmission requirements. This dynamic adjustment allows the system to optimize the balance between coverage area and propagation distance by dynamically controlling the beam's divergence angle, thereby reducing energy loss at large angles while maintaining wide area coverage when needed
3Device complexity
If optical signals are transmitted without beam convergence control, then the transmission is simple, but the received optical signals are hard to be converged into beams and photoelectric conversion efficiency is reduced
Solution Approach 1:
The patent implements preliminary beam convergence action by incorporating convergence lenses and mirrors in the transmission path that pre-converge the optical signals before they reach the receiver. This preliminary convergence ensures that the optical signals arrive at the photodiodes in a focused state, significantly improving photoelectric conversion efficiency while maintaining relatively simple system architecture through the use of fixed optical 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
Improves optical signal transmission efficiency by reducing scattering loss and enhancing photoelectric conversion efficiency through controlled angular propagation and convergence of light beams.
Implementation Method 1
The first light beam is collimated after entering the first lens
Implementation Method 2
After the first light beam passes through the third lens along the first optical path, the first light beam diverges with a divergence angle relative to an optical axis of the first light beam
Implementation Method 3
After the second light beam enters the third lens, it is converged on the beam splitter and is converged by the second lens
Implementation Method 4
the beam splitter is configured to reflect the first light beam and transmit the second light beam
Implementation Method 5
the beam splitter is configured to reflect the first light beam and transmit the second light beam
Implementation Method 6
the light-shielding coating is configured to reflect the first light beam and the second light beam
Data Source
AI summary
The disclosure provides a light guiding pipe including a pipe body with a first end, a second end and a third end, a first lens, a second lens, a third lens, and a beam splitter. The first lens is disposed at the first end and on a first optical path of a first light beam. The second lens is disposed at the second end and on a second optical path of a second light beam. The third lens is disposed at the third end and on both the first optical path and the second optical path. The beam splitter is located on the first optical path and the second optical path. The first light beam enters from the first end, passes through the beam splitter, and leaves from the third end. The second light beam enters from the third end, passes through the beam splitter, and leaves from the second end.