Head-Mounted Optical Housing Structure for Drop Protection
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Solution Overview
Problem
Existing head-mounted devices for VR and AR technologies lack effective protection for their vulnerable components, such as the host, which includes optical machine assemblies and cameras, from damage due to dropping or other factors.
Innovation Solution
A protective housing is designed to accommodate the optical machine assembly, providing a secure enclosure for the host components, including a first housing assembly with snap connections and a mask that covers the front, a rear cover, and a decorative element to enhance structural strength and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the host components are exposed without protective housing, then the device structure is simpler and easier to manufacture, but the components become vulnerable to damage from dropping or other factors
Solution Approach 1:
The protective housing is divided into multiple segments including a first housing assembly, rear cover, and mask. These segmented parts can be manufactured separately and assembled together, providing comprehensive protection for the host components while maintaining manufacturing simplicity through modular construction
Solution Approach 2:
The host components are nested within the protective housing structure, with the optical machine assembly and camera assembly positioned inside the housing cavity. This nesting arrangement protects the vulnerable components while integrating them into the overall device structure
2Reliability
If the protective housing encloses all components, then the components are well protected, but the optical components may be affected by temperature changes and condensation
Solution Approach 1:
The housing structure provides different levels of protection and environmental control for different components. The mask specifically covers the optical components to protect them from direct environmental exposure, while the main housing protects the electronic components. This localized approach allows temperature and condensation management for sensitive optical parts without compromising overall protection
Solution Approach 2:
The mask acts as an intermediary element between the external environment and the optical machine assembly. It selectively filters environmental factors such as temperature changes and condensation while allowing the optical components to function, thereby mediating the interaction between the protected components and the external environment
Data Source
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AI summary
A head-mounted device, comprising a protective housing (10), a mask (13), and an optical machine assembly (60). An accommodating chamber (17) is formed in the protective housing (10). The upper portion of the mask (13) is connected to the protective housing (10), and the lower portion of the mask (13) exceeds out of the protective housing (10). The optical machine assembly (60) comprises: an optical machine support (61) arranged in the accommodating chamber (17); an optical machine (62), positioned in the accommodating chamber (17); a waveguide piece (63); a connecting body, positioned in the accommodating chamber (17), the optical machine (62) and the waveguide piece (63) being mounted on the connecting body (64), and the connecting body (64) being fixed to the optical machine support (61). The waveguide piece (63) penetrates through the bottom of the protective housing (10) from the accommodating chamber (17) and extends downwards. The accommodating chamber (17) is formed by the protective housing (10), so as to accommodate the optical machine assembly (60) of the head-mounted device, and protect the optical machine assembly (60).