AR Waveguide Display With Solar Charging for Longer Wear Time
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The limited battery capacity of augmented reality (AR) glasses restricts their usage time due to the inability to extend the battery size in wearable devices.
Innovation Solution
Incorporating a solar charging layer into the AR display device, which is configured to charge the light source using external light, such as sunlight, thereby extending the device's battery life and reducing the weight of charging equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the battery size is extended to increase usage time, then the usage time is improved, but the weight and size of the wearable device increases
Solution Approach 1:
The patent combines the waveguide module and solar charging layer into a single integrated structure. The solar charging layer is positioned on the outer surface of the waveguide module, allowing simultaneous light guidance and solar energy harvesting functions within the same device footprint, eliminating the need for separate battery extensions
Solution Approach 2:
The solar charging layer enables the device to charge itself by harvesting ambient light energy. The generated electrical energy is stored in the battery through the electrical connection, allowing the device to replenish its own power supply without external charging equipment, thereby extending usage time without adding battery weight
2Duration of action of moving object
If the battery size is extended to increase usage time, then the usage time is improved, but the device complexity increases
Solution Approach 1:
The waveguide module serves dual purposes: it guides light for AR display functionality and simultaneously supports the solar charging layer for power generation. This multi-functional design avoids adding separate charging components, maintaining device simplicity while extending usage time
Solution Approach 2:
By integrating the solar charging layer with the waveguide module structure, the patent reduces the number of independent components. The electrical connection between the solar charging layer and battery is achieved through the existing device architecture, avoiding complex wiring and control systems
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 integration of a solar charging layer enhances the AR glasses' usage time without additional power sources and reduces the overall weight, improving the product's competitiveness.
Implementation Method 1
The solar charging layer is configured to charge the light source and is located on an outer surface of the augmented reality display device
Implementation Method 2
The electrochrome layer is located on a surface of the waveguide element facing away the first glass layer
Data Source
AI summary
An augmented reality display device includes a light source, a waveguide module and a solar charging layer. The light source has a light-emitting area. The waveguide module is located on the light-emitting area of the light source and includes a first glass layer, a waveguide element, an electrochrome layer and a second glass layer. The first glass layer is located on the light-emitting area of the light source. The electrochrome layer is located on a surface of the waveguide element facing away the first glass layer. The second glass layer is located a surface of the electrochrome layer facing away the waveguide element. The solar charging layer is located on a surface of the second glass layer facing away the electrochrome layer, in which the solar charging layer electrically connects the light source and is configured to charge the light source.