Optical Recognition Device with Anti-Reflective Gap Sheltering
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Solution Overview
Problem
Conventional optical recognition devices suffer from low accuracy and long response times due to low resolution and undesirable reflected non-visible light from multi-layered films, which deteriorates the recognition process.
Innovation Solution
An optical recognition device comprising a transparent substrate with a patterned multi-layered film and an anti-reflective optical film that shelters gaps in the recognition pattern, specifically designed to reduce reflections by using infrared reflective films and anti-reflective coatings to improve visibility and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a multi-layered film is used to reflect non-visible light, then infrared light reflection is achieved, but reflected light from gaps in the multi-layered film deteriorates optical recognition
Solution Approach 1:
The patent extracts and removes the harmful reflected light from gaps in the multi-layered film by introducing an anti-reflective optical film that specifically targets and eliminates these unwanted reflections, while preserving the beneficial infrared reflection function of the multi-layered film
Solution Approach 2:
The anti-reflective optical film acts as an intermediary layer between the multi-layered film and the external environment, mediating the light interactions by preventing harmful reflections from gaps while allowing the multi-layered film to perform its infrared reflection function
2Measurement precision
If conventional optical recognition devices are used, then basic recognition function is provided, but location accuracy and response time are insufficient
Solution Approach 1:
The patent changes the optical parameters of the system by introducing an anti-reflective optical film with specific optical properties that reduce stray light and improve contrast, thereby enhancing measurement precision and response time of the optical recognition 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
The solution enhances location accuracy and reduces ambiguous recognition patterns by minimizing reflected light, thereby improving the overall performance of optical recognition devices and displays.
Implementation Method 1
the patterned infrared reflective film reflects the recognition pattern by reflection of infrared light and transmission of visible light
Implementation Method 2
an anti-reflective optical film sheltering a gap in a recognition pattern of the patterned multi-layered film
Data Source
AI summary
An optical recognition device is provided. The optical recognition device includes a transparent substrate, a patterned infrared reflective film formed thereon, and an infrared anti-reflective film sheltering a gap in a recognition pattern of the patterned infrared reflective film, wherein the patterned infrared reflective film reflects the recognition pattern by reflection of infrared light and transmission of visible light. The invention also provides a display incorporating the optical recognition device.