Head-Mounted Optical Module Adjustment and Camera Antenna Integration
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Solution Overview
Problem
Head-mounted devices face challenges in accommodating varying user interpupillary distances and maintaining camera alignment, which affects the quality of images and user experience.
Innovation Solution
The design includes adjustable optical modules with actuators and guide structures to accommodate different interpupillary distances, and camera support structures with integrated antennas and bend sensors to maintain camera alignment and ensure proper image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antennas are formed on camera support members with metal traces or conductive structures, then radio-frequency signal handling is enabled, but camera alignment may be affected due to interference between metal components and camera operation
Solution Approach 1:
A non-conductive layer is introduced between the metal antenna structures and the camera components to eliminate electromagnetic interference while maintaining radio-frequency signal functionality. This intermediary layer allows both systems to coexist without mutual interference.
Solution Approach 2:
The camera support member is designed with spatially differentiated zones: areas with metal traces for antenna functionality and areas without metal for optimal camera operation. This local differentiation allows each component to operate in its optimal environment.
2Adaptability or versatility
If optical modules are made adjustable to accommodate different interpupillary distances, then user adaptability is improved, but device complexity increases due to additional actuators and guide structures
Solution Approach 1:
The optical module support structure incorporates movable elements that allow dynamic adjustment of interpupillary distance. The module can shift position along the bridge of the head-mounted device, adapting to different user anatomies while maintaining a relatively simple overall structure.
Solution Approach 2:
The adjustment mechanism serves multiple functions: it accommodates different interpupillary distances, maintains proper optical alignment, and provides a universal solution for various user head sizes and shapes, reducing the need for multiple specialized components.
3Reliability
If camera support members include integrated antennas and bend sensors, then camera alignment maintenance is improved, but manufacturing complexity increases
Solution Approach 1:
Multiple functions (camera support, antenna mounting, bend sensing) are integrated into a single camera support member component. This consolidation reduces the total number of parts and assembly steps, simplifying manufacturing despite the increased functionality of each component.
Solution Approach 2:
The camera support member is designed as a multi-functional component that simultaneously provides mechanical support, houses antenna structures, and incorporates bend sensors for alignment detection, eliminating the need for separate components for each function.
Data Source
AI summary
A head-mounted device may have a head-mounted housing. The housing may include a frame with left and right openings that receive respective left and right optical modules that present images to a user's eyes. Each optical module may have a lens and display that presents an image through the lens. Camera support members may be coupled to respective left and right peripheral portions of the frame. Each camera support member may have openings configured to receive cameras. Antennas may be formed on a camera support member. The antennas may have metal traces on a surface of the camera support member, may have conductive structures embedded within the camera support member, and/or may have patterned metal traces on printed circuits attached to or embedded in the camera support member. The cameras may operate through portions of a display cover layer that covers an outwardly-facing display on the head-mounted housing.