Near-Eye Display Optical Module with Continuous Curved Surfaces
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Solution Overview
Problem
Existing optical modules for near-eye display devices face issues of complex processing operations, high processing difficulty, high costs, limited view field angle, and insufficient brightness, leading to poor imaging performance and incompatibility with ordinary glasses.
Innovation Solution
The optical module features a substrate with continuous curved surfaces and reflection areas, allowing for simplified processing and reduced light loss, enhanced brightness, and improved imaging quality, enabling integration with ordinary glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional optical modules are used in near-eye display devices, then imaging function is provided, but processing complexity and manufacturing costs increase
Solution Approach 1:
The patent combines multiple optical functions (incident area, first reflection area, exit area, second reflection area) into a single integrated substrate, eliminating the need for separate optical components and reducing assembly complexity while maintaining full imaging functionality
Solution Approach 2:
The substrate serves multiple functions simultaneously: it acts as the structural base, contains incident and exit areas for light transmission, and incorporates reflection areas for optical path folding, replacing what would traditionally require multiple separate components
2Ease of manufacture
If traditional optical modules are used in near-eye display devices, then imaging function is provided, but manufacturing costs increase
Solution Approach 1:
The patent combines multiple optical functions (incident area, first reflection area, exit area, second reflection area) into a single integrated substrate, eliminating the need for separate optical components and reducing assembly complexity while maintaining full imaging functionality
Solution Approach 2:
The patent uses coating layers (first coating layer and second coating layer) on the substrate to create reflection areas, employing a simplified copying process rather than manufacturing complex three-dimensional optical components, thereby reducing manufacturing difficulty and cost
3Loss of energy
If traditional optical modules are used in near-eye display devices, then imaging function is provided, but optical utilization decreases
Solution Approach 1:
The patent employs curved surface designs for the incident area and exit area, which improve light collection efficiency and optical path control, thereby enhancing optical utilization without compromising imaging quality through proper curvature optimization
Solution Approach 2:
The integrated substrate design eliminates multiple interfaces and alignment errors between separate components, reducing optical loss at interfaces and improving overall optical utilization while maintaining precise imaging through monolithic construction
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 solution reduces processing complexity and costs while improving imaging quality and brightness, allowing the optical module to be integrated with ordinary glasses for enhanced functionality.
Implementation Method 1
the first reflective layer is disposed on the first curved surface to form the first reflection area, and the second reflective layer is disposed on the second curved surface to form the second reflection area
Data Source
AI summary
An optical module for a near-eye display device includes a substrate including a first curved surface and a second curved surface spaced apart from each other. The first curved surface has a first reflection area and an exit area located on periphery of the first reflection area, and the second curved surface has an incident area and a second reflection area located on periphery of the incident area. At least one of the first curved surface and the second curved surface is a continuous curved surface. The incident area is configured for receiving light rays from the display module. The light rays pass through the incident area, the first reflection area, the second reflection area, and are emitted from the exit area. The near-eye display device is further provided.