VR Spectacle Light Guide Walls Expand Viewing Angle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Virtual reality spectacles often limit the user's viewing angle, causing black obstacles when attempting to see beyond the lens cone, which hampers immersion and user experience.
Innovation Solution
The optical imaging structure incorporates light guide walls along the edges of the eyeglass component with light incoming and outgoing faces, allowing light rays from beyond the eyeglass component to enter the user's eyes, enhancing the viewing range and immersion by eliminating black obstacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the eyeglass component is designed with a limited lens cone for focused imaging, then the optical precision for virtual reality display is improved, but the viewing angle is restricted causing black obstacles at the edges
Solution Approach 1:
The solution divides the optical system into two functional segments: the main lens cone for high-precision virtual reality imaging and peripheral light guide walls for expanded light transmission. This segmentation allows each component to specialize - the lens maintains optical precision while the light guide walls provide broader angular coverage, eliminating the trade-off between precision and viewing angle.
Solution Approach 2:
The patent adds a spatial dimension by extending light guide structures vertically along the optical axis beyond the lens edges. This dimensional extension creates additional light transmission pathways at angles outside the conventional lens cone, allowing light from beyond the traditional viewing range to reach the user's eyes without compromising the central imaging precision.
2Adaptability or versatility
If the lens cone is enlarged to increase viewing angle, then the black obstacles are reduced, but the optical imaging precision and focus quality deteriorate
Solution Approach 1:
The optical system is segmented into a central lens region for precision imaging and peripheral light guide regions for angle expansion. This allows the lens to maintain its optimized cone geometry for sharp focus while the surrounding light guide walls handle the peripheral light transmission, preserving imaging precision across the expanded field of view.
Solution Approach 2:
The light guide walls act as intermediary structures between the light source and the user's peripheral vision. They transmit light that would otherwise fall outside the lens cone without requiring the lens itself to be enlarged, thus maintaining imaging precision while expanding the effective viewing angle through this intermediate light-guiding medium.
3Adaptability or versatility
If light guide walls are added to expand viewing range, then the immersion experience is improved, but the device complexity increases
Solution Approach 1:
The light guide walls are merged with the eyeglass component housing rather than being separate attached elements. This integration combines the structural support function with the light-guiding function, reducing the number of discrete parts and simplifying assembly while maintaining the immersion-enhancing expanded viewing capability.
Solution Approach 2:
The light guide walls serve multiple functions: they expand the viewing angle for immersion, provide structural support for the optical assembly, and guide light efficiently from the display to the user's eyes. This multi-functionality reduces the need for additional specialized components, thereby managing device complexity while achieving the immersion goal.
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 enables a broader viewing angle without black obstacles, improving the sense of immersion and user experience by allowing light rays from both within and beyond the eyeglass component's viewing range to be perceived, thus enhancing the overall experience.
Implementation Method 1
at least one light guide wall distributed along an edge of the eyeglass component, wherein, two opposite end faces of the at least one light guide wall are respectively a light incoming face and a light outgoing face
Implementation Method 2
a first aspheric lens for observation by left eye, a second aspheric lens for observation by right eye
Implementation Method 3
a first Fresnel lens and a second Fresnel lens disposed around the first aspheric lens and the second aspheric lens, respectively
Data Source
AI summary
The present disclosure provides an optical imaging structure and virtual reality spectacles. In one embodiment, an optical imaging structure includes: an eyeglass component; and at least one light guide wall distributed along an edge of the eyeglass component, wherein, two opposite end faces of the at least one light guide wall are respectively a light incoming face and a light outgoing face; wherein, an inner rim of the light outgoing face joins the edge of the eyeglass component and extends in an optical axis direction of the eyeglass component, and, the light outgoing face is gradually distanced from the eyeglass component from the inner rim to an outer rim of the light outgoing face; and wherein, the at least one light guide wall includes a first light guide wall and a second light guide wall respectively disposed at left and right sides of the eyeglass component.