Compensating Lens Set for VR Folded Optical Path Aberration
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Solution Overview
Problem
Existing virtual reality apparatus with folded optical path systems suffer from large aberration, leading to image distortion and negative user experiences due to the lack of optical compensation.
Innovation Solution
A compensating lens set is introduced between the first lens set and the display unit in the folded optical path system, comprising a first compensating lens with aspherical surfaces, designed to eliminate spherical aberration and potentially other aberrations, without increasing the total length of the optical path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a folded optical path system is used to achieve light weight, then the size of the virtual reality apparatus is reduced, but spherical aberration increases causing image distortion
Solution Approach 1:
A compensating lens set is introduced as an intermediary optical element between the display unit and the first lens set. This compensating lens set specifically addresses and eliminates spherical aberration in the folded optical path system without increasing the overall apparatus size, thereby resolving the contradiction between compact size and image quality.
2Length of moving object
If the folded optical path system is compacted, then the total length is reduced, but optical aberration increases leading to image deformation
Solution Approach 1:
The compensating lens set modifies optical parameters by introducing elements with specific refractive powers that are opposite to those of the first lens set. This parameter adjustment enables the system to maintain compact length while correcting spherical aberration and preserving image quality.
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
The compensating lens set effectively reduces spherical aberration in the folded optical path system, improving image quality and user experience by minimizing distortion and deformation, while maintaining the compactness of the virtual reality apparatus.
Implementation Method 1
the incident light enters the first compensating lens from the first surface, is emitted out of the first compensating lens from the second surface
Implementation Method 2
the first surface and the second surface are aspherical structures
Data Source
AI summary
Disclosed are a compensating lens set and a virtual reality apparatus with the same. The compensating lens set is applied to a folded optical path system. The folded optical path system sequentially comprises, in an optical axis direction, a display unit, a first lens set and a diaphragm. The compensating lens set is arranged between the first lens set and the display unit, the compensating lens set comprising a first compensating lens, the first compensating lens comprising a first surface and a second surface. The first lens set comprises a third surface and a fourth surface. An incident light emitted by the display unit enters the first compensating lens from the first surface, and is emitted out of the first compensating lens from the second surface, passes through the first lens set, and then is transmitted to the diaphragm.