Optical Element Pinhole Layout for Accurate Gaze Detection
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Solution Overview
Problem
Existing electronic devices with light-receiving and light-emitting elements struggle to accurately detect changes in the direction of the line of sight, limiting their capability to provide immersive experiences in virtual and augmented reality applications.
Innovation Solution
An optical element is designed with alternating light-emitting and sensor regions on a first substrate, combined with a second substrate featuring light-shielding regions and pinholes, where pinholes are offset from sensor regions in peripheral areas to enhance detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If pinholes are positioned directly over sensor regions, then light transmission efficiency is improved, but the ability to detect line of sight changes is reduced
Solution Approach 1:
The patent applies local quality by differentiating pinhole positions based on spatial location. In the center region, pinholes are positioned over sensor regions to maximize light transmission. In peripheral regions, pinholes are offset from sensor regions to enable line of sight change detection. This spatially varying configuration allows each region to optimize for its specific function.
Solution Approach 2:
The patent segments the light shielding region into a center region and peripheral regions based on their functional requirements. The center region prioritizes light transmission, while peripheral regions prioritize detection capability. This segmentation allows the system to simultaneously achieve both light transmission efficiency and line of sight detection accuracy in different zones.
2Measurement precision
If pinholes are offset from sensor regions in peripheral areas, then line of sight detection capability is improved, but light transmission efficiency is reduced
Solution Approach 1:
The patent applies local quality by differentiating pinhole positions based on spatial location. In the center region, pinholes are positioned over sensor regions to maximize light transmission. In peripheral regions, pinholes are offset from sensor regions to enable line of sight change detection. This spatially varying configuration allows each region to optimize for its specific function.
Solution Approach 2:
The patent segments the light shielding region into a center region and peripheral regions based on their functional requirements. The center region prioritizes light transmission, while peripheral regions prioritize detection capability. This segmentation allows the system to simultaneously achieve both light transmission efficiency and line of sight detection accuracy in different zones.
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 optical element effectively detects changes in line of sight, enabling enhanced virtual and augmented reality experiences by adjusting displayed images based on user gaze direction.
Implementation Method 1
a plurality of pinholes provided in the light shielding region, on the second substrate
Data Source
AI summary
In an optical device, a center position of a pinhole is disposed at a center position of a sensor region, in a first individual region disposed in a center region, of a plurality of first individual regions, and a distance in planar view between a center region of the sensor region and the pinhole in the first individual region far from the center region is longer than a distance in planar view between the center region of the sensor region and the pinhole in the first individual region close to the center region in the first individual regions disposed in the peripheral region.