Interchangeable Lens Mechanism for Head-Worn Displays

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Solution Overview

Problem

Existing head-worn display systems face challenges in ensuring proper vision correction for users who require prescription lenses, as they often lack interchangeable optics for effective vision correction.

Innovation Solution

A lens mechanism for head-worn display devices that includes a first housing with a lens display and optic, and a second optic holder for interchangeable vision correction optics, allowing users to removably attach prescription lenses over the primary optic for improved vision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If head-worn display systems use fixed optics, then the device structure is simple, but vision correction cannot be customized for users with different vision needs

Engineering Contradiction:

Improvevision correction customizationVSAvoidoptics structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The optics system is divided into two separate segments: a fixed primary optic integrated into the display housing, and a removable secondary optic (prescription lens) that can be detached and replaced. This segmentation allows the system to maintain structural simplicity while enabling customization through interchangeable lens elements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The optics configuration is made dynamic by introducing a removable secondary optic that can be attached or detached from the primary optic. This dynamic design allows the system to adapt to different vision correction needs without permanently altering the device structure, resolving the contradiction between simplicity and versatility.

Inventive Principle:

Principle #15Dynamics

2Reliability

If head-worn display systems incorporate interchangeable prescription lenses, then vision correction effectiveness is improved, but the device assembly complexity increases

Engineering Contradiction:

Improvevision correction effectivenessVSAvoidassembly structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the primary optic and secondary optic holder into a unified optical assembly where the secondary optic attaches directly to the primary optic. This merging reduces the number of separate components and simplifies the overall assembly structure while maintaining the ability to provide effective vision correction through interchangeable lenses.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If head-worn display systems use removable optic holders, then ease of maintenance and customization is improved, but structural stability may be compromised

Engineering Contradiction:

Improvelens replacement easeVSAvoidoptical alignment stability

Core Design Contradiction:

Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent introduces an intermediary optic holder structure that mediates between the removable secondary optic and the fixed primary optic. This intermediary component provides a stable mounting interface with alignment features that ensure optical precision is maintained during lens replacement, resolving the contradiction between ease of operation and structural stability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables customizable and effective vision correction by allowing interchangeable prescription lenses, enhancing the usability and accuracy of head-worn display systems for users with varying vision needs.

Implementation Method 1

a first lens display configured to emit light waves to display an image

Methodology Applied

Scientific EffectLight emission: Light

Implementation Method 2

a first optic configured to magnify the image of the first lens display

Methodology Applied

Scientific EffectOptical magnification: Lens

Implementation Method 3

a second optic holder includes a second optic configured for vision correction

Methodology Applied

Scientific EffectVision correction through refraction: Refraction

Data Source

PatentUS11779204B1Interchangeable lens mechanism for a head-worn display system and method of assembling the lens mechanism

Publication Date: 2023.10.10 MANTIS HEALTH INC

AI summary

A lens mechanism for a head-worn display device and a method of assembling the lens mechanism is disclosed. The lens mechanism includes a first housing disposed on a head-worn display device, wherein the first housing includes a first lens display, a first optic and a first optic holder configured to rigidly maintain the first lens display and the first optic, wherein the first optic holder includes an aperture configured to allow light waves to pass from the first lens display to the first optic. The lens mechanism includes a second optic holder that includes a second optic configured for vision correction, wherein the second optic is interchangeable and located over the first optic. The second optic holder is configured to removably dispose the second optic to the head-worn display device.