Movable Light Receiver with Direction Detection for Optical Alignment
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Solution Overview
Problem
Existing spatial optical communication systems struggle to accurately adjust the position of the light receiver in accordance with the incoming direction of the spatial optical signal, leading to unstable communication.
Innovation Solution
A receiver design incorporating a ball lens, annular track, movable light receiver, direction detection light receiving elements, wavelength filter, and optical waveguide, which allows for manual adjustment of the light receiver's position to align with the incoming signal direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional optical spatial communication device is used, then communication can be established, but the position of the light receiver cannot be accurately adjusted in accordance with the incoming direction of the spatial optical signal
Solution Approach 1:
The receiver is divided into multiple independent light receiving elements arranged in specific patterns (e.g., hexagonal, triangular, or square configurations). Each element can detect light intensity independently, allowing the system to determine the incoming direction of the spatial optical signal by comparing signals from different elements. This segmentation enables precise position adjustment while maintaining communication stability.
Solution Approach 2:
The system uses feedback from multiple light receiving elements to detect the incoming direction of the spatial optical signal. By analyzing the intensity distribution across the segmented light receiving elements, the system generates feedback information about the signal's origin direction, which is then used to adjust the receiver position or orientation to accurately track and maintain communication with the transmitter.
2Measurement precision
If the light receiver position is fixed, then the device structure is simple, but accurate alignment with the incoming signal direction cannot be achieved
Solution Approach 1:
The light receiver is designed with movable components that can dynamically adjust their position or orientation based on the detected incoming direction of the spatial optical signal. The receiver structure includes movable light receiving elements or adjustable optical components that can reposition themselves to align with the signal source, enabling accurate alignment while maintaining a relatively simple overall device structure through controlled mobility rather than complete rigidity.
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
Enables precise alignment of the light receiver with the incoming signal direction, facilitating stable and efficient spatial optical communication.
Implementation Method 1
a ball lens 11, an annular track 16 disposed in such a way as to surround a lower portion of the ball lens 11
Implementation Method 2
a wavelength filter 127 that is disposed between the communication light receiving element 122 and a ball lens 11, and between the plurality of direction detection light receiving elements 121 and a ball lens 11 and passes light in a wavelength band of a spatial optical signal to be communicated
Implementation Method 3
an optical waveguide 123 that is disposed in association with the plurality of direction detection light receiving elements 121 and guides the optical signal condensed by the ball lens to the direction detection light receiving element
Data Source
AI summary
A receiver that includes a ball lens, an annular track disposed surrounding a lower portion of the ball lens, and a movable light receiver including a light receiver movably installed in a direction perpendicular to the annular track. The light receiver includes a communication light receiving element, direction detection light receiving elements disposed annularly with the communication light receiving element, a wavelength filter disposed between the communication light receiving element and a ball lens, and between the plurality of direction detection light receiving elements and a ball lens and passes light in a wavelength band of a spatial optical signal to be communicated, and an optical waveguide that is disposed in association with direction detection light receiving elements and guides the optical signal condensed by the ball lens to the direction detection light receiving element.