Helmet-Mounted Display Connector With Revolute Joints
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Solution Overview
Problem
Helmet-mounted display units often lack flexibility in position and orientation adjustments, and their mounting arrangements can prevent the use of helmet-mounted visors or glasses.
Innovation Solution
A helmet-mounted display unit with a connector that allows adjustable attachment to a helmet, featuring revolute joints for pitch and yaw rotations, and optional vertical translation, enabling the display to be positioned between the visor and glasses without contact, and allowing the user to choose which eye to view the display from.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed mounting arrangement is used for the display, then the device structure is simple, but the adjustability of display position and orientation is poor
Solution Approach 1:
The connector incorporates two revolute joints that enable dynamic adjustment of the display's pitch and yaw orientations. These joints allow the display to be positioned at various angles relative to the helmet, transforming a static mounting system into a dynamic one that adapts to different user needs and viewing requirements.
Solution Approach 2:
The connector is divided into multiple functional segments including an attachment portion for securing to the helmet, a first revolute joint for pitch adjustment, and a second revolute joint for yaw adjustment. This segmentation allows each component to perform its specific function independently while contributing to the overall adjustability of the system.
2Ease of operation
If the display is mounted close to the visor, then the display is more accessible, but it interferes with the use of visor and glasses
Solution Approach 1:
The revolute joints enable the display to be dynamically positioned at optimal angles and distances from the visor and glasses. Users can adjust the display orientation to ensure it remains accessible while maintaining clearance from protective equipment, allowing both the display and visor/glasses to function simultaneously without interference.
3Adaptability or versatility
If the display orientation is fixed, then the connector structure is simple, but it cannot be rotated out of line of sight when not in use
Solution Approach 1:
The two revolute joints create a dynamic positioning system that allows the display to be rotated and tilted to various orientations. When not in use, the display can be rotated out of the user's line of sight to reduce distractions, and tilted to appropriate viewing angles when needed, providing operational flexibility.
Solution Approach 2:
The connector is segmented into distinct rotational joints that independently control pitch and yaw movements. This segmentation allows for precise control of the display's orientation, enabling it to be positioned exactly where needed while maintaining a relatively simple overall structure through modular design.
Data Source
AI summary
Helmet-mounted display unit arrangements provide improved adjustability, including pitch, yaw, and/or vertical translation adjustment. In some embodiments, adjustments to one parameter do not affect the adjustability of other parameters. The helmet-mounted display and associated mount may be arranged such that the helmet-mounted display fits behind a helmet-mounted visor and/or in front of glasses being worn by the user.