Forehead-Contact Augmented Vision Display for Thermal Imaging
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Solution Overview
Problem
Existing augmented vision systems for extreme environments face challenges in time-to-enabling, comfort, and sharing due to positioning requirements, exposure to extreme conditions, and compatibility with air-tight masks, leading to increased costs and reduced usability.
Innovation Solution
A head-mountable augmented vision system with a display that uses a contact surface on the forehead for repeatable angular positioning, combined with an adjusting mechanism for relative translation, allowing for rapid setup and comfort with air-tight masks, and enabling easy sharing and use with various head-mounting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If displaying means are mounted outside mask's protecting visor, then time-to-enabling is reduced and image positioning can be adjusted at any time, but manufacturing and maintenance costs increase due to constant exposure to extreme conditions
Solution Approach 1:
The system divides the mounting structure into two separate parts: a permanent fixing element attached to the mask's visor (protected from external conditions) and a removable display body that can be adjusted or replaced. This segmentation allows the display to be protected when not in use while maintaining quick adjustment capability.
Solution Approach 2:
The fixing element is pre-installed on the mask's visor during manufacturing, creating a prepared mounting structure. This preliminary action eliminates the need for complex field adjustments and reduces the time required to set up the display system while protecting the mounting interface from environmental exposure.
2Object-affected harmful factors
If displaying means are fixed on internal surfaces of mask's visor, then protection against aggressive substances, heats and dusts is provided, but any adjustment of positioning requires removal of mask which affects time-to-enabling and air-tight protection
Solution Approach 1:
The display body is designed with dynamic characteristics, allowing it to be quickly attached and detached from the fixing element. This dynamic mounting system enables rapid positioning adjustments without requiring mask removal, thus maintaining both protection and adjustability.
Solution Approach 2:
The fixing element acts as an intermediary component between the mask's visor and the display body. It provides a protected mounting interface on the visor while allowing the display body to be easily attached or removed without exposing the visor itself to adjustment operations.
3Reliability
If AV systems require mechanical modifications of mask's frame, then displaying means can be securely mounted, but sharing between distinct users and compatibility with various head-mounting elements becomes difficult or impossible
Solution Approach 1:
The fixing element is designed with universal compatibility, featuring a standardized interface that can accommodate different mask models and head-mounting elements without requiring custom modifications. This universal design enables secure mounting across various platforms while facilitating sharing between users.
Solution Approach 2:
The system allows for parameter adjustments in the positioning of the display body relative to the fixing element, enabling adaptation to different users and mask configurations. This flexibility maintains secure mounting while achieving versatility across different applications and users.
4Reliability
If goggle-based AV systems are used, then thermal imaging can be provided, but users experience discomfort due to prolonged pressure from goggle pushed against face by mask
Solution Approach 1:
Instead of pushing the display against the user's face (as in goggle-based systems), the display body is designed to rest on or near the forehead area, inverting the pressure application point. This inversion eliminates prolonged facial pressure while maintaining thermal imaging capability and field-of-view alignment.
Data Source
AI summary
The invention concerns an augmented vision system (1) comprising: a displaying device (3) comprising: a fixing element (31) for coupling the displaying device (3) to a head-mountable component (90) configured to be positioned in front of a 5 face (102) of a user (100), and a display body (32) being coupled to said fixing element (31) by means of a pivoting link (321, 322, 323) providing a rotation of the display body with respect to the fixing element around a rotational axis (38); the display body (32) comprising 10 a display (33) configured to display thermal data and/or images provided by a thermal sensing device (2); and a first surface portion (325) configured to enter in contact with a forehead of a user, when said head-mountable component (90) is positioned in front of the face of the user, so as to rotate the display 15 body (32) to a predefined angular positioning (381) around the rotational axis (38).