Orthogonal Waveguide Arrays for Optical Lens Ghosting Reduction
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Solution Overview
Problem
Current imaging technologies face limitations in achieving high-resolution, small distortion, and three-dimensional display characteristics due to optical aberrations and a limited field of view and aperture, particularly in large-field and large-aperture imaging displays.
Innovation Solution
An optical lens design featuring two transparent substrates with orthogonally arranged optical waveguide arrays, each comprising rectangular cross-sectioned optical waveguide units, which are spliced to form a rectangle with specific angles and shapes, reducing ghosting from stray light and improving imaging effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional lens is used for imaging, then the structure is simple, but optical aberrations occur and the field of view and aperture are limited
Solution Approach 1:
The patent divides the imaging function into multiple components: a first plate-like optical element with first reflective bodies and transparent bodies, and a second plate-like optical element with second reflective bodies and transparent bodies. This segmentation allows each component to handle specific optical functions, overcoming the limitations of a single traditional lens while managing complexity through modular design.
Solution Approach 2:
The patent embeds transparent bodies within the intervals between adjacent reflective bodies in both optical elements. This nesting structure allows the transparent bodies to fill gaps and work in conjunction with reflective bodies to expand the field of view and aperture while maintaining a compact overall structure.
2Manufacturing precision
If a single traditional lens is used, then the device is simple, but imaging quality deteriorates due to optical aberrations
Solution Approach 1:
By separating the optical elements into two distinct plate-like structures with specific reflective and transparent components, the patent addresses optical aberrations through differentiated functional zones. Each plate can be independently manufactured and optimized, improving imaging quality while allowing complex aberration correction through structured complexity.
Solution Approach 2:
The patent combines reflective bodies and transparent bodies within the same optical elements to create a composite optical structure. This composite approach enables correction of optical aberrations by leveraging the different optical properties of reflective and transparent materials working together in a unified system.
3Object-affected harmful factors
If optical waveguide arrays are arranged orthogonally, then stray light ghosting is reduced, but the structure becomes more complex
Solution Approach 1:
The patent introduces orthogonal arrangement of optical waveguide arrays by extending waveguides in perpendicular directions (e.g., horizontal and vertical orientations). This dimensional change effectively separates stray light paths from the primary imaging path, reducing ghosting while the orthogonality itself provides the complexity management through clear geometric differentiation.
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 design enhances imaging quality by reducing stray light ghosting and improving resolution, while allowing for larger screen processing and various application scenarios, thus addressing the limitations of existing technologies.
Implementation Method 1
two optical waveguide arrays, arranged between the two transparent substrates by means of glue, optical waveguide extending directions of the two optical waveguide arrays being arranged orthogonally
Implementation Method 2
each optical waveguide unit having a rectangular cross section, and the plurality of optical waveguide units being joined in parallel
Data Source
Figure 1a~1b
Figure 2
Figure 3a~3b
AI summary
An optical lens, comprising: two transparent substrates, each having two optical surfaces; and two optical waveguide arrays, which are arranged between the two transparent substrates by means of glue and whose extension directions are arranged orthogonally. Each optical waveguide array includes a plurality of optical waveguide units joined in parallel, and the cross section of each optical waveguide unit is rectangular. The outer contour of the optical waveguide array is rectangular, and an angle of 30-60 degrees is formed between the extension direction of the optical waveguide unit and at least two sides of the outer contour of the optical waveguide array.