Head-Mounted Display Layout for Mixed Reality Video Pass-Through
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Solution Overview
Problem
Existing head mountable computer systems for augmented reality lack efficient integration of multiple cameras and displays to provide seamless mixed reality experiences, particularly in capturing and projecting images while maintaining a compact and user-friendly design.
Innovation Solution
A head mountable device with a nasal bridge, forward and rearward facing displays, forward facing cameras, and a controller that facilitates mixed reality video pass-through, along with a shroud and sensor bracket for camera concealment, enabling simultaneous image capture and projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cameras and displays are integrated into a single head mountable device, then mixed reality experience quality is improved, but device complexity increases
Solution Approach 1:
The device is divided into distinct functional modules: camera assembly with multiple forward-facing cameras positioned at specific locations, display assembly with rearward-facing displays, shroud structure for concealment, and sensor bracket for mounting. Each module operates independently but integrates seamlessly to provide mixed reality functionality.
Solution Approach 2:
The shroud is disposed between the camera and the front cover, creating a nested structure where the shroud conceals the camera while allowing optical access. The sensor bracket is integrated into the structural frame, with cameras mounted on arms cantilevered from the bracket, creating a compact nested arrangement.
2Ease of manufacture
If cameras are concealed using shroud and sensor bracket, then aesthetic appearance is improved, but manufacturing complexity increases
Solution Approach 1:
The shroud is extracted as a separate component that can be independently manufactured and then assembled onto the camera assembly. The sensor bracket is extracted as a separate mounting structure. This allows each component to be optimized for manufacturing while achieving the concealment function.
Solution Approach 2:
The shroud acts as an intermediary element between the camera and the external environment, providing concealment while maintaining optical functionality. The sensor bracket serves as an intermediary mounting structure that simplifies the integration of multiple cameras into the overall device architecture.
3Measurement precision
If forward facing cameras are positioned to capture images through transparent portions, then image capture quality is improved, but device structural complexity increases
Solution Approach 1:
The shroud is designed with specific transparent portions at precise locations to allow optical access for each camera. The first transparent portion allows the first camera to capture images, while the second transparent portion allows the second camera to capture images. This localized transparency provides optimal image capture quality while maintaining overall device structure.
Data Source
AI summary
A head mountable device includes a front cover defining an external forward facing surface and a nasal bridge, a first rearward facing display, a second rearward facing display, a first forward facing camera, a second forward facing camera, and a controller electrically coupled to the first forward facing camera, the second forward facing camera, the first rearward facing display, and the second rearward facing display. The nasal bridge is disposed between the first forward facing camera and the second forward facing camera and the controller is configured to cause mixed reality video pass-through from the first forward facing camera to the first rearward facing display including a first image and from the second forward facing camera to the second rearward facing display including a second image.