Optical Sensor Holder With Light Guides for Accurate Sun Tracking
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Solution Overview
Problem
Conventional light sensor holders struggle to accurately track sunlight location at high intensities, such as during sunny weather, due to minimal resistance difference between light sensors, leading to inaccurate solar plate or solar collector tracking.
Innovation Solution
A light sensor holder with a refraction section and auxiliary light guide sections, including light inputting and outputting holes, is designed to enhance sunlight sensing by refracting light and delivering it to the sensing section, improving sensitivity at high illuminance levels and low sunlight intensities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional light sensors are used to track sunlight at high intensity, then the device can operate during sunny weather, but the resistance difference between sensors becomes minimal leading to inaccurate tracking
Solution Approach 1:
The patent introduces an optical fiber as an intermediary element to transmit sunlight from the exterior to the light sensor positioned inside the holder. This mediator allows the sensor to indirectly receive sunlight while being protected from direct high-intensity exposure, enabling accurate tracking even during sunny weather by maintaining sufficient resistance difference between sensors
Solution Approach 2:
The patent moves the light sensor from direct exterior exposure to an interior position within the holder, changing its spatial dimension. By positioning the sensor inside and using optical fibers to bring light to it, the system creates a protected sensing environment that maintains measurement precision across varying sunlight intensities
2Measurement precision
If light sensors are placed directly exposed to sunlight, then the structure remains simple, but the sensors cannot accurately sense sunlight location at high illuminance levels
Solution Approach 1:
The optical fiber acts as a mediator that bridges the exterior sunlight environment and the interior sensor position. This allows the sensor to be shielded from direct high-intensity sunlight while still receiving sufficient light for accurate sensing, resolving the contradiction between measurement precision and structural simplicity
Solution Approach 2:
The light sensor is nested within the holder body rather than being externally mounted. The optical fiber is inserted through the holder wall to deliver light to the nested sensor, creating a compact integrated structure that maintains sensing precision without requiring complex external mounting arrangements
3Measurement precision
If conventional holders without auxiliary light guides are used, then the device structure remains simple, but sunlight intensity is insufficient at dawn or evening for accurate sensing
Solution Approach 1:
The auxiliary light guide section with optical fibers serves as an intermediary to capture and redirect sunlight from different angular directions to the sensor. This is particularly effective at dawn or evening when sunlight arrives at oblique angles, allowing the sensor to maintain accurate sensing capability throughout different times of day
Solution Approach 2:
The auxiliary light guide section provides multi-functional capability by handling sunlight from various incident angles in addition to the main light guide. This universal design enables the holder to maintain sensing precision across different solar positions, from morning to evening, without requiring separate sensing systems for different times
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 design enhances the accuracy of sunlight tracking even at high illuminance levels, allowing solar plates and collectors to effectively follow sunlight, and improves sensitivity at dawn or evening when sunlight intensity is low.
Implementation Method 1
a light inputted through the light inputting hole is refracted, and the refracted light is delivered to a sensing section of the first light sensor or the second light sensor
Implementation Method 2
The Cds senses the emitted light through change of resistance in accordance with amount of light irradiated thereto
Data Source
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AI summary
A holder having an optical sensor for tracking location of sunlight is disclosed. The optical sensor holder includes a holder 100 in which a first optical sensor 401 is set, a first light guide section 141 including a light inputting hole 151 adjacent to a wall 300 at one side 111 of a body 110 in the holder 100 and formed in vertical direction, wherein a light is inputted through the light inputting hole 151, a second home 122 connected to the first light guide section 141 via a refraction section 172 and a second light guide section 142, wherein the light inputted through the light inputting hole 151 is refracted, and the refracted light is delivered to a sensing section 420 of a first optical sensor 401 through a light outputting section 161, and a first home 121 adjacent to the second home 122, the first optical sensor 401 being set in the first home 121.