Optical Field Control Structure for Residual Image Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical imaging systems with planar lenses suffer from a large field of view and residual images on the sides of the floating real image, degrading the user's viewing experience.
Innovation Solution
A view field control apparatus with a base body and parallel light-shielding portions is introduced to reduce the field of view and suppress residual images by selectively blocking light, using materials like optical quartz glass or black glass, and adjusting the spacing and thickness of the light-shielding portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a planar lens is used to form a floating real image, then the imaging characteristics are improved, but residual images appear on the sides of the real image and the field of view is too large
Solution Approach 1:
The patent extracts and removes the harmful residual images by introducing light-shielding portions that selectively block light forming residual images while allowing light forming the real image to pass through. The light-shielding portions are positioned at specific locations where residual images are generated, effectively separating and removing only the harmful components from the optical path.
Solution Approach 2:
The patent applies local quality by creating non-uniform light-shielding structures with varying transparency. The base body has regions with different light-shielding properties - areas with light-shielding portions that block residual images while maintaining transparency in regions where the real image needs to be formed. This localized differentiation of optical properties allows selective control over image quality.
2Manufacturing precision
If the field of view is reduced to suppress residual images, then image clarity is improved, but the viewing angle becomes more limited
Solution Approach 1:
The patent implements dynamics by making the light-shielding portions adjustable or switchable. The light-shielding portions can be configured to be movable, rotatable, or switchable between transparent and opaque states, allowing dynamic adjustment of the field of view. This enables the system to adapt between different viewing scenarios - restricting the field of view when residual images are problematic and expanding it when full viewing angle is needed.
Solution Approach 2:
The patent segments the optical path by dividing the base body into multiple regions with different light-shielding properties. The light-shielding portions are distributed at specific segments of the optical path where residual images are generated, allowing independent control of different field of view regions. This segmentation enables selective field of view control without uniformly restricting the entire viewing angle.
3Object-generated harmful factors
If light-shielding portions are added to control field of view, then residual images are suppressed, but the device complexity increases
Solution Approach 1:
The patent merges the light-shielding function with the base body structure itself. Rather than adding separate, independent light-shielding components, the light-shielding portions are integrated into or combined with the base body, creating a unified structure that performs both structural support and optical control functions. This merging reduces the number of separate components and simplifies the overall device architecture.
Solution Approach 2:
The patent makes the base body multi-functional by enabling it to serve both as the structural support for the optical system and as the light-shielding element. The base body with integrated light-shielding portions performs multiple functions - providing mechanical support, controlling the field of view, and suppressing residual images - thereby reducing the need for additional dedicated light-shielding components.
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 apparatus effectively reduces the field of view and minimizes residual images, enhancing the user's viewing experience by controlling the light path and improving image clarity.
Implementation Method 1
a plurality of light-shielding portions disposed in the base body and parallel to each other... selectively blocking light
Implementation Method 2
a base body that is light-transmittable
Data Source
Figure 1~3
Figure 4~6
Figure 7~8
AI summary
Provided are a view field control apparatus (3) applied in an optical imaging system (100) and an optical imaging system (100). The view field control apparatus (3) applied in the optical imaging system (100) includes a base body (302) that is light-transmittable; and a plurality of light-shielding portions (303) disposed in the base body (302) and parallel to each other. The plurality of light-shielding portions (303) is sequentially disposed in a first direction of the base body (302) and at least two adjacent light-shielding portions (303) in the plurality of light-shielding portions (303) are spaced apart from each other to form a light-transmittable region between the two adjacent light-shielding portions (303).