Concave Lens Display Apparatus for Wider Field of View
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Solution Overview
Problem
Existing virtual reality display technologies face challenges in achieving a larger field of view without increasing the size and weight of the display apparatus, which compromises portability and user convenience.
Innovation Solution
The display apparatus incorporates a display screen with an optical element featuring a first lens with a concave surface facing towards the display screen, allowing for a larger field of view while reducing the dimensions of the apparatus by minimizing the diameter of the lens in directions parallel to the display screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the diameter of the lens is increased to achieve a larger field of view, then the field of view is improved, but the weight and volume of the display apparatus increase
Solution Approach 1:
The patent applies a concave curved surface design to the lens instead of a flat or convex surface. This curvature allows the lens to achieve a larger field of view while maintaining a smaller diameter, thereby reducing the weight and volume of the display apparatus without sacrificing optical performance
2Adaptability or versatility
If the diameter of the lens is increased to achieve a larger field of view, then the field of view is improved, but the volume of the display apparatus increases
Solution Approach 1:
The concave curved surface design of the lens enables achieving a larger field of view with a smaller lens diameter, which directly reduces the volume occupied by the optical element and consequently the overall volume of the display apparatus
3Adaptability or versatility
If the diameter of the lens is increased to achieve a larger field of view, then the field of view is improved, but the convenience and portability of the display apparatus deteriorates
Solution Approach 1:
By using a concave curved surface lens design, the patent achieves a larger field of view without increasing the lens diameter, thereby maintaining the display apparatus in a compact, portable form factor that is easy to operate and wear
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 enhances the immersive experience by increasing the field of view without enlarging the display apparatus, thus improving convenience and facilitating adjustments for interpupillary distance.
Implementation Method 1
the optical element includes a first lens at a side away from the display screen, the first lens includes a first curved surface away from the display screen, and the first curved surface is a concave surface facing toward the display screen
Data Source
AI summary
A display apparatus includes one or more display screens and one or more optical elements corresponding to the one or more display screens respectively. For each optical element and its corresponding display screen, the optical element is disposed at a light exit side of the display screen, the optical element includes a first lens at a side away from the display screen, the first lens includes a first curved surface away from the display screen, and the first curved surface is a concave surface facing toward the display screen.