Glasses-Style HMD with Detachable Eye Cups and Adjustable Lens Tubes
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Solution Overview
Problem
Conventional head-mounted displays (HMDs) are unsuitable for public or outdoor use due to their large size, weight, and tendency to attract attention, and they often become unsanitary due to skin oil and sweat contact, posing a risk of disease transmission.
Innovation Solution
A glasses-style HMD with two tubular housings (lens tubes) that minimally cover the user's eyes, featuring an adjustable mechanism to align with the pupils, detachable eye cups for sanitation, and a design that reduces external light entry and attention draw.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional HMDs are designed to provide immersive display, then display quality is improved, but device size and weight increase making them unsuitable for public use
Solution Approach 1:
The HMD is divided into separate functional modules: lens tubes containing display components, detachable eye cups for sanitation, and adjustable mechanisms. This segmentation allows each component to be optimized independently while reducing overall device bulk and weight for public use scenarios
Solution Approach 2:
The patent transitions from conventional boxy HMD structures to a cylindrical lens tube design that wraps around the user's eyes. This dimensional change to a conformal geometry reduces the frontal profile and overall volume of the device, making it more suitable for public environments
2Ease of manufacture
If HMDs are designed with fixed structure, then manufacturing is simplified, but adaptability to different users is reduced
Solution Approach 1:
The patent incorporates adjustable mechanisms that allow users to modify the distance between lens tubes and adjust the angle of the display components. These dynamic adjustments enable adaptation to different interpupillary distances and viewing angles while maintaining a relatively simple overall structure
Solution Approach 2:
The detachable eye cups serve multiple functions: they provide a sanitary barrier, can be removed for cleaning, and can be attached or detached based on user preference. This multi-functionality increases adaptability without significantly complicating the base structure
3Illumination intensity
If HMDs are designed to block external light, then display contrast is improved, but device complexity increases
Solution Approach 1:
The eye cups are constructed from flexible materials that can be detached and cleaned. These flexible shells provide a simple yet effective barrier that blocks external light while maintaining ease of cleaning and sanitation requirements
4Stability of the object's composition
If HMDs are made with non-detachable components, then structural integrity is improved, but sanitation is compromised due to skin oil and sweat contact
Solution Approach 1:
The HMD is segmented into a reusable lens tube assembly and detachable eye cups. The eye cups can be removed for cleaning and replacement, addressing sanitation concerns while maintaining the structural integrity of the main display components
Solution Approach 2:
The eye cups are designed as disposable or easily replaceable components that can be cleaned and sterilized. This approach prioritizes sanitation over long-term durability of these specific components, allowing regular cleaning to prevent disease transmission
Data Source
AI summary
A display device includes: a closed-bottomed first lens tube including a first display part on the closed bottom for displaying a first image; a closed-bottomed second lens tube including a second display part on the closed bottom for displaying a second image; an adjustment mechanism including an operable part that is provided between and adjusts a distance between the first and second lens tubes; and an eye cup provided for each of the first and second lens tubes that is tubular and detachably attached to the open end of the first or second lens tube. The eye cup includes: an insertion part that is tubular and inserted inside the first or second lens tube; and a cup part having a curved sheet shape that extends outside of the first or second lens tube.