Optical Structure With Region-Spaced Compensation Film for VR Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical systems in VR devices face challenges in achieving consistent imaging quality across the entire field of view due to differences in optical performance between the central and edge regions of lenses, leading to limitations in high-demand applications and increased manufacturing complexity.
Innovation Solution
An optical structure with a compensation film between a reflective polarizing layer and a lens, adjusting the distance between the compensation film surface and the lens surface at different regions to optimize optical performance, allowing for finer contour adjustments and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a curved surface film is applied to optimize light propagation path, then optical performance is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies different surface shapes to different regions of the lens. The first region (central area) has a first surface shape while the second region (edge area) has a second surface shape that is different from the first. This local differentiation allows optimization of optical performance in each region without requiring complex manufacturing across the entire lens, as each region can be processed independently with its own optimized curvature.
Solution Approach 2:
The lens surface is divided into multiple regions (first region and second region) with distinct optical characteristics. By segmenting the lens into zones with different surface curvatures, the patent enables targeted optimization of light propagation in each region while simplifying the overall manufacturing process, as each segment can be manufactured and adjusted independently.
2Manufacturing precision
If the distance between compensation film surface and lens surface is adjusted at different regions, then imaging quality is improved, but device structure becomes more complex
Solution Approach 1:
The compensation film is positioned at different distances from the lens surface in different regions. Specifically, the distance between the first compensation film surface and the lens surface varies between the first region and the second region. This local variation in spacing allows fine-tuning of optical compensation in each region to improve imaging quality without requiring a completely complex multi-component structure, as the variation is achieved through simple spacing adjustment rather than additional elements.
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 structure achieves improved imaging quality and flexibility in design, enabling application in high-end products with precise optical performance control while reducing manufacturing difficulty and cost.
Implementation Method 1
a first compensation film surface of the compensation film away from the second surface is a curved surface. The second surface includes a first region and a second region surrounding at least a portion of the first region, an optical axis of the at least one lens passes through the first region, and a distance between the first compensation film surface and a surface in the first region of the second surface is smaller than a distance between the first compensation film surface and a surface in the second region of the second surface
Implementation Method 2
the reflective polarizing layer is located at a side of the second surface away from the first surface
Implementation Method 3
reflective polarizing layer
Implementation Method 4
the at least one lens includes a first surface and a second surface; the second surface is a curved surface
Data Source
AI summary
An optical structure and a display device are provided. The optical structure includes at least one lens including a first surface and a second surface, a transflective film, and a reflective polarizing layer. The transflective film is at a side of the first surface away from the second surface; the reflective polarizing layer is at a side of the second surface away from the first surface. The second surface is a curved surface and includes a first region and a second region, a compensation film is between the reflective polarizing layer and the second surface, and a first compensation film surface of the compensation film away from the second surface is a curved surface; a distance between the first compensation film surface and a surface in the first region is smaller than a distance between the first compensation film surface and a surface in the second region.