VR Glasses Myopia Adjustment via Optical Device Translation
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Solution Overview
Problem
Current VR glasses struggle to accommodate myopic users effectively, as existing solutions either reduce comfort, require complex and bulky adjustable lens barrels, or are limited by the availability and matching of gradient negative diopter lenses.
Innovation Solution
An object distance adjusting apparatus with a movable barrel component system that allows for precise adjustment of the optical device's position relative to the display portion, using a threaded mechanism and scale marks for diopter adjustment, enabling users to match their specific myopia needs without the need for external glasses or complex lens systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If gradient negative diopter lenses are used to accommodate myopic users, then myopia correction capability is improved, but device complexity and bulkiness increase due to adjustable lens barrels
Solution Approach 1:
The patent extracts the lens adjustment function from a complex adjustable lens barrel system and implements it through a simplified mechanism where the entire optical device assembly can be adjusted relative to the display portion, eliminating the need for complex internal lens barrels while maintaining myopia correction capability
Solution Approach 2:
The object distance adjusting portion serves multiple functions: it adjusts optical device position, accommodates different myopia degrees through scale marks, and works with both fixed and adjustable optical devices, replacing multiple specialized components with a single multi-functional mechanism
2Adaptability or versatility
If external glasses or complex lens systems are used for myopia correction, then myopia accommodation is improved, but user comfort and convenience deteriorate
Solution Approach 1:
The patent merges the myopia correction function directly into the VR glass structure by integrating the object distance adjusting portion with the optical device assembly, allowing users to adjust for their prescription without wearing separate external glasses, thereby improving comfort and convenience
Solution Approach 2:
The patent implements a dynamic adjustment mechanism that allows users to easily modify the optical device position according to their specific myopia needs, transforming a static system into an adaptable one that responds to individual user requirements without compromising ease of use
3Measurement precision
If adjustable optical device position is implemented, then myopia matching precision is improved, but device structure becomes more complex
Solution Approach 1:
The patent replaces complex mechanical lens adjustment systems with a simpler mechanical translation mechanism that moves the entire optical device assembly relative to the display portion, using basic threading and limiting structures instead of sophisticated mechanical systems, thereby maintaining precision while reducing complexity
Data Source
AI summary
An object distance adjusting apparatus includes: an object distance adjusting portion, for fixing an optical device and adjusting a position of the optical device relative to an object image display portion; a limiting portion, for fixing the object image display portion and limiting a limit position of the object distance adjusting portion relative to the object image display portion; and a connecting and fixing portion, which is on a side of the limiting portion away from the object distance adjusting portion and is connected to the object distance adjusting portion, for fixing the limiting portion, the optical device and the object image display portion. Virtual display glasses include an optical device, an object image display portion, and the object distance adjusting apparatus, which can fix the optical device and the object image display portion, and adjust the position of the optical device relative to the object image display portion.