Optical Sensor Front Cover With Polypropylene Light Condensing Element
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Optical sensors in electronic devices are vulnerable to damage from water, dust, and environmental interference, requiring effective protection without compromising their light detection capabilities.
Innovation Solution
The optical sensor assembly incorporates a front cover with an optical element that condenses incident light onto the sensor, while also featuring alignment pegs and screw holes for secure attachment, all made from durable materials like polypropylene or polyethylene.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical sensor is exposed to the ambient environment, then light detection capability is maintained, but the sensor is vulnerable to damage from water, dust, and environmental interference
Solution Approach 1:
The front cover is divided into multiple functional components: an optical element for light transmission, alignment pegs for positioning, and screw holes for securing. This segmentation allows each component to address specific protection needs while maintaining overall sensor safety.
Solution Approach 2:
The front cover acts as an intermediary protective barrier between the optical sensor and the harmful ambient environment. It allows beneficial light transmission while blocking water, dust, and other environmental interferents from reaching the sensor.
2Reliability
If a protective cover is added to protect the optical sensor, then protection from environmental hazards is improved, but the device complexity increases
Solution Approach 1:
Multiple protective and functional features are merged into a single front cover component. The optical element, alignment pegs, and screw holes are all integrated into one structure that provides protection while maintaining simplicity in design and assembly.
Solution Approach 2:
The front cover serves multiple functions simultaneously: it protects the sensor from environmental hazards, transmits incident light to the optical sensor, provides alignment through alignment pegs, and enables secure attachment through screw holes. This multi-functionality reduces overall device complexity.
3Illumination intensity
If an optical element is added to condense light onto the sensor, then light transmission efficiency is improved, but the device complexity increases
Solution Approach 1:
The optical element is positioned specifically at the location where light incidence occurs, providing localized light condensation functionality. This targeted approach improves light transmission efficiency at the critical interface without adding complexity throughout the entire device.
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 effectively protects optical sensors from environmental hazards while ensuring optimal light transmission and alignment, enhancing the reliability and performance of the sensors.
Implementation Method 1
the front cover has an optical element for condensing incident light
Implementation Method 2
configured to condense an incident light of a predetermined wavelength onto the optical sensor
Data Source
AI summary
An optical sensor assembly is provided. The optical sensor assembly includes a circuit board, an optical sensor positioned on the circuit board, and a front cover attached to the circuit board and covering the optical sensor. The front cover includes an optical element configured to guide or condense an incident light of a predetermined wavelength onto the optical sensor. The front cover is made of polypropylene or polyethylene. The predetermined wavelength is in a range from 8 micrometers to 12 micrometers.