Adjustable Optical Ocular System for Spherical Vision Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users with spherical defective vision face discomfort and difficulty when wearing head-mounted display devices due to the need to wear additional spectacles, which complicates the placement and use of the device.
Innovation Solution
An optical ocular system with a displacement unit that adjusts the spacing between the first optic group and the deflection element, allowing for correction of spherical defective vision without requiring the user to move relative to the system, thereby eliminating the need for spectacles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ocular system is designed with fixed optical spacing, then the structure is simple and compact, but users with spherical defective vision cannot use it without spectacles
Solution Approach 1:
The patent applies the dynamics principle by making the spacing between the first lens and the deflection element adjustable rather than fixed. The displacement unit enables dynamic modification of the optical path length, allowing the system to adapt to different spherical defective vision requirements while maintaining a relatively simple overall structure.
2Ease of operation
If the user moves relative to the optical ocular system to correct vision, then no additional components are needed, but the user cannot maintain proper positioning and imaging quality
Solution Approach 1:
The patent replaces the mechanical approach of user movement with an optical adjustment mechanism. Instead of requiring the user to physically move their head or eyes to achieve focus, the displacement unit mechanically adjusts the optical components to achieve the same effect, thereby maintaining both ease of operation and precise image positioning.
3Reliability
If spectacles are worn with the HMD device, then spherical defective vision is corrected, but the device placement becomes difficult and user comfort decreases
Solution Approach 1:
The patent merges the vision correction function directly into the HMD device by integrating the displacement unit within the optical system. This combination eliminates the need for separate spectacles, allowing users to achieve both secure device placement and reliable vision correction through a single integrated system.
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 with spherical defective vision to use the optical ocular system without spectacles, minimizing imaging errors and providing a comfortable and effective viewing experience by adjusting the optical alignment along the axis, covering a diopter range of ±3.5 diopters.
Implementation Method 1
a first lens (10) having negative refractive power
Implementation Method 2
a deflection element (11) downstream from the image-generating element having positive refractive power, which causes folding of the beam path using a single reflection
Data Source
AI summary
The present invention relates to an optical ocular system having imaging optics that map an image generated in an object plane such that a user can perceive the same in an image plane, wherein the imaging optics comprise a first lens having negative refractive power, and a deflection element having positive refractive power, which is connected downstream of the first lens, effecting a folding of the optical path by means of a single reflection, wherein the first lens and the object plane form a first optical group, and a displacement unit is provided, which can change the distance between the first optical group and the displacement element for the correction of spherical ametropia of the user.