VR Positioning Lenses with 120-160 Degree Field Angle
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Solution Overview
Problem
Current optical tracking positioning technologies in virtual reality, such as Lighthouse and Phase Space, suffer from inaccurate and inefficient positioning due to a small light receiving angle, which is often addressed by increasing the number of optical sensors, leading to higher manufacturing costs.
Innovation Solution
The use of convex lenses or Fresnel lenses with a field angle of 120 to 160 degrees in virtual reality positioning devices to increase the light receiving angle of optical sensors, allowing for improved positioning accuracy and efficiency while reducing the number of sensors and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of optical sensors is increased to improve positioning accuracy, then positioning accuracy is improved, but manufacturing costs increase significantly
Solution Approach 1:
The patent changes the field angle parameter of the optical lens from a conventional small angle to a large angle (120-160 degrees). This parameter change allows a single optical sensor to capture light from a much wider range, effectively replacing the need for multiple sensors while maintaining positioning accuracy, thus resolving the contradiction between measurement precision and manufacturing cost
Solution Approach 2:
The large field angle lens enables a single optical sensor to perform the function of multiple sensors by capturing light from all directions within the wide field of view. This multi-functional capability allows one sensor to achieve what previously required multiple sensors, reducing manufacturing costs while maintaining positioning accuracy
2Productivity
If the number of optical sensors is increased to improve positioning efficiency, then positioning efficiency is improved, but device complexity increases
Solution Approach 1:
By changing the field angle parameter to 120-160 degrees, the patent enables rapid acquisition of light signals from multiple directions simultaneously. This parameter change improves positioning efficiency by allowing the system to track user movement more quickly and accurately without the complexity of coordinating multiple sensors
Solution Approach 2:
The patent extracts and eliminates the need for multiple optical sensors by using a single sensor with a large field angle lens. This extraction of unnecessary components simplifies the device structure, reduces complexity, while maintaining positioning efficiency through the enhanced light gathering capability of the single sensor
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 solution enhances positioning accuracy and efficiency while maintaining the integrity of the device and reducing manufacturing costs by increasing the light receiving angle of optical sensors, allowing for more precise tracking and interaction in virtual reality environments.
Implementation Method 1
The lenses include convex lenses or Fresnel lenses
Implementation Method 2
The lenses include convex lenses or Fresnel lenses
Data Source
AI summary
A virtual reality positioning device including a casing, a plurality of lenses, and a plurality of optical positioning components is provided. The casing has a plurality of holes. The lenses are installed in the holes, respectively, where a field angle of each of the lenses is greater than or equal to 120 degrees and less than or equal to 160 degrees, and the lenses include convex lenses or Fresnel lenses. The optical positioning components are installed in the casing and aligned to the lenses, respectively. In addition, a virtual reality positioning system and manufacturing method of a virtual reality positioning device are provided.