Virtual Reality Apparatus Object Distance Adjustor

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Solution Overview

Problem

Existing virtual reality glasses have a fixed structure, resulting in a non-adjustable object distance, leading to a blurry image for users with different vision conditions, which compromises the user experience.

Innovation Solution

A virtual reality apparatus with an object distance adjustor and a pupillary distance adjustor, featuring screw rods and gears that allow manual adjustment of the distance between the display screen and lens assembly, enabling users to customize the optical imaging effect according to their vision needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed structure is used in virtual reality glasses, then the device complexity is reduced and manufacturing is simplified, but the adaptability to different user vision conditions deteriorates

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidadaptability to different vision conditions

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed structure into an adjustable one. The object distance adjustor and pupillary distance adjustor enable the lens assembly and display screen to be dynamically repositioned, allowing the same device to adapt to different user vision conditions while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by allowing adjustment of key dimensional parameters - the object distance between the display screen and lens assembly, and the pupillary distance between the two lenses. These parameter adjustments enable the device to accommodate various user needs without requiring multiple different product designs.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If an adjustable object distance mechanism is added, then the adaptability to different vision conditions is improved, but the device complexity increases

Engineering Contradiction:

Improveadaptability to different vision conditionsVSAvoidstructural complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the adjustment function into two independent modules: the object distance adjustor for adjusting the distance between the display screen and lens assembly, and the pupillary distance adjustor for adjusting the distance between the two lenses. This segmentation allows each module to be optimized independently while maintaining overall system simplicity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent replaces complex electronic or motorized adjustment systems with simple mechanical screw rod and gear mechanisms. The adjustment screw rods threaded through bearing holes, combined with transmission gears, provide reliable mechanical adjustment with minimal components, reducing overall device complexity while achieving the desired adaptability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If manual adjustment mechanisms are added, then the adaptability is improved, but the ease of operation deteriorates due to additional adjustment steps

Engineering Contradiction:

Improvecustomization capabilityVSAvoidoperation convenience

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent merges the adjustment functions by positioning both the object distance adjustor and pupillary distance adjustor within the same head-mounted device structure. Users can adjust both parameters without needing separate devices or complex procedures, combining multiple adjustment capabilities into a single integrated system that maintains operational simplicity.

Inventive Principle:

Principle #5Merging (Combining)

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 users to achieve a clear and comfortable visual experience by allowing individual adjustments of the object and pupillary distances, improving the overall usability of virtual reality glasses.

Implementation Method 1

the adjustment screw rods are capable of screwing into the first support columns respectively through threaded engagement between outer screw threads of the adjustment screw rods and the inner screw threads on the inner wall of the first support columns

Methodology Applied

Scientific EffectThreaded engagement: Screw

Implementation Method 2

both ends of the transmission screw rod are respectively provided with a second transmission gear, and the second transmission gear is configured to engage, for transmission, with the adjustment gear or the first transmission gear of a corresponding one of the adjustment screw rods

Methodology Applied

Scientific EffectGear transmission: Gear

Data Source

PatentUS10962734B2Virtual reality apparatus

Publication Date: 2021.03.30 BOE TECHNOLOGY GROUP CO LTD

AI summary

Embodiments of the present disclosure provide a virtual reality apparatus. The virtual reality apparatus includes a display screen and a display screen support configured to support the display screen; a lens assembly and a barrel support configured to hold the lens assembly; and an object distance adjustor coupled between the display screen support and the barrel support respectively, the object distance adjustor being configured to adjust a distance between the display screen support and the barrel support.