Optical Element Array for Droplet Detection
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Solution Overview
Problem
Existing droplet detection apparatuses in the medical field have limitations in detecting droplet dropping and providing accurate droplet information, particularly in expanding the detection range and preventing light reflection interference.
Innovation Solution
A droplet detection apparatus with an optical element array comprising multiple optical elements, including light emitting and receiving elements, and a reflection prevention member to enhance detection precision and range, coupled with a network-based information notification system for remote droplet information dissemination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single light emitting element and a single light receiving element are used, then the device structure is simple, but the detection range of droplet dropping is limited
Solution Approach 1:
The patent divides the detection system into multiple independent optical elements (three or more light emitting elements and corresponding light receiving elements) arranged in an array. Each optical element pair can independently detect droplet dropping in its specific detection region, thereby expanding the overall detection range while maintaining manageable complexity through modular segmentation.
Solution Approach 2:
The patent combines multiple optical elements into a single integrated optical element array structure. By merging several light emitting elements and light receiving elements into one array system with a unified housing and control mechanism, the patent achieves expanded detection range while avoiding excessive complexity that would result from completely separate detection systems.
2Reliability
If light is irradiated through the droplet passage, then droplet dropping can be detected, but light reflection from the optical element array interferes with the light receiving element
Solution Approach 1:
The patent applies a reflection prevention member (black color region) on the optical element array to absorb and eliminate harmful light reflections. By converting the harmful reflection effect into beneficial light absorption, the patent ensures that only light passing through the droplet is detected, thereby improving detection accuracy and reliability.
Solution Approach 2:
The reflection prevention member acts as an intermediary element between the optical element array and the environment. This intermediate component (black color region) mediates the light interaction by absorbing reflected light before it can reach the light receiving element, thus preventing interference and ensuring accurate droplet detection.
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 apparatus improves droplet detection accuracy and range by overlapping light emitting and receiving regions, suppressing light reflection, and enables timely notification of droplet information through a network, facilitating prompt medical interventions.
Implementation Method 1
utilize the change in the amount of light entering the light receiving element by refraction and shading of light when the light irradiated from the light emitting element passes drip infusion
Implementation Method 2
shading of light when the light irradiated from the light emitting element passes drip infusion
Implementation Method 3
a reflection prevention member that prevents reflection of light from the optical element array to a light receiving element
Data Source
AI summary
The problem to be solved of the present disclosure is to provide a detection apparatus that detects dropping of a droplet. The detection apparatus comprises an optical element array having three or more optical elements comprising a first light emitting element, a first light receiving element and a second light receiving element, wherein the first light emitting element, the first light receiving element and the second light receiving element are disposed within the optical element array so that a part of a light emitting region irradiated from the first light emitting element and a part of a light receiving region of the first light receiving element overlap and a part of a light emitting region irradiated from the first light emitting element and a part of a light receiving region of the second light receiving element overlap.