Wearable Display Linking-Lever Eye Alignment

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Solution Overview

Problem

Current wearable display devices for Augmented Reality (AR) have an optical imaging device that is fixedly arranged and cannot be adjusted to align with the user's eyes, limiting user comfort and willingness to use the device.

Innovation Solution

A wearable display device featuring a wearing device, a bracket, and a linking-lever set with pivotally connected rods, allowing the optical imaging device to be adjusted and rotated to align with the user's eyes, and can be hidden or exposed as needed, using a hat-like structure with an accommodating recess and cushion rings for stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the optical imaging device is fixedly arranged in front of the user's eyes, then the device structure is simple, but the device cannot be adjusted to align with different users' eyes

Engineering Contradiction:
Improveadjustability to user's eyesVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed optical imaging device into an adjustable one through a linking-lever mechanism. The optical imaging device can now move relative to the wearing device, allowing it to be positioned according to different users' eye locations while maintaining structural integrity through the four-bar linkage system.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the device into multiple functional components: the wearing device, the bracket, the linking-lever set with multiple rods, and the optical imaging device. This segmentation allows each component to perform its specific function while enabling overall adjustability without excessive complexity.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the optical imaging device is adjustable, then user comfort is improved, but the device structure becomes more complex

Engineering Contradiction:
Improveuser comfortVSAvoidmechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The linking-lever mechanism provides dynamic adjustability that enhances user comfort. The optical imaging device can be positioned at different locations and angles to match individual user eye positions, making the device easier to operate and more comfortable to wear despite the added mechanical complexity.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the optical imaging device projects outwards from the hat brim, then the device is easily accessible, but the device cannot be hidden when not in use

Engineering Contradiction:
ImprovehideabilityVSAvoidaccessibility
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The optical imaging device can dynamically change its position between projecting outwards from the hat brim for easy accessibility and retracting into the hat body for concealment. The linking-lever mechanism enables this positional transformation, allowing the device to be hidden when not in use while remaining easily accessible when needed.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11172718B2Wearable display device
Publication Date: 2021.11.16 QUANTA COMPUTER INC
  • US11172718B2 patent drawing
  • US11172718B2 patent drawing
  • US11172718B2 patent drawing

AI summary

A wearable display device includes a wearing device, a linking-lever set, a bracket and an optical imaging device. The linking-lever set includes a first rod and a second rod, and the first rod is pivotally connected to the wearing device and the second rod, respectively. The bracket is fixedly connected to the optical imaging device, and is pivotally connected to the second rod of the at least one linking-lever set.