Polygonal Mirror 3D Display System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display systems for stereoscopic images face challenges such as high labor and memory requirements, accuracy issues in projecting two-dimensional images onto rotating screens, limited viewing positions, low visibility, and complexity in maintaining high-speed image projection, which result in suboptimal stereoscopic image quality and visibility.
Innovation Solution
A display system utilizing a stereoscopic screen with a visible field angle limiting filter and directional reflection screen, combined with a polygonal mirror arrangement and auxiliary mirror to project image segments from an electronic projector, allowing for clear, high-resolution stereoscopic images to be viewed from any direction without the need for screen rotation, thus minimizing visibility issues and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotating screen is used to display stereoscopic images, then stereoscopic vision can be achieved, but high-speed rotation requires precise timing synchronization and high accuracy in projecting two-dimensional images, increasing device complexity and difficulty of operation
Solution Approach 1:
Instead of rotating the screen to display different images from different viewpoints, the patent inverts the approach by using a fixed screen and rotating the projected images themselves. The polygonal mirror system reflects images from multiple directions simultaneously onto the fixed screen, eliminating the need for high-speed screen rotation and complex timing synchronization while maintaining stereoscopic vision.
Solution Approach 2:
The patent divides the projection system into multiple independent image segments that can be projected simultaneously from different directions. The polygonal mirror arrangement segments the viewing angle into multiple zones, with each zone receiving images from corresponding direction, allowing parallel projection without requiring sequential rotation.
2Adaptability or versatility
If a rotating screen is used to display stereoscopic images, then multiple two-dimensional images can be displayed, but many two-dimensional images are needed which takes considerable labor and time and requires high volume memory
Solution Approach 1:
The patent merges multiple two-dimensional images into a single projection process by using the polygonal mirror system to reflect and combine images from different directions simultaneously onto the fixed screen. This eliminates the need to sequentially display many individual two-dimensional images, reducing processing time and memory requirements while maintaining stereoscopic display capability.
Solution Approach 2:
The system enables continuous projection of multiple images simultaneously rather than sequentially. The polygonal mirror arrangement allows continuous display of images from different viewpoints at the same time, eliminating the intermittent nature of sequential image display and reducing total processing time.
3Reliability
If the screen is rotated at high speed to induce visual after-image, then three-dimensional image effect is achieved, but image visibility decreases and becomes dark
Solution Approach 1:
The patent introduces the polygonal mirror system as an intermediary between the light sources and the screen. The mirrors reflect and concentrate light onto the screen from multiple directions simultaneously, acting as light amplifiers that increase illumination intensity without requiring high-speed rotation, thus maintaining both three-dimensional image effect and visibility.
Solution Approach 2:
Instead of achieving three-dimensional effect through temporal rotation (one dimension), the patent uses spatial arrangement of multiple mirrors to create simultaneous multi-directional projection (three dimensions). This dimensional change allows the screen to receive light from multiple angles at once, increasing total illumination without the darkening effect of high-speed rotation.
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 system enables clear, high-resolution stereoscopic images to be viewed from any direction with improved visibility and reduced complexity, eliminating the need for high-speed screen rotation and precise timing synchronization, thereby enhancing user experience and system efficiency.
Implementation Method 1
a visible field angle limiting filter which limits a visible field angle projected onto the projected image surface in a left-right direction
Implementation Method 2
a directional reflection screen for improvement in visibility
Implementation Method 3
image segments projected from a projector such as an electronic projector, etc. is projected onto a projected image surface of a stereoscopic screen through a polygonal mirror arranged around the stereoscopic screen
Implementation Method 4
a projection optical path between the electronic projector and the polygonal mirror is refracted and formed through an auxiliary mirror
Data Source
AI summary
A display apparatus and an imaging apparatus constructed such that a high-resolution clear three-dimensional video image can be viewed from any direction. The display apparatus projects frame images, projected from a projector such as an electronic projector, to a video image projection surface of a three-dimensional screen through a polygonal mirror provided around the three-dimensional screen, thereby providing a polyhedral video image such as a three-dimensional image to a person viewing from around the video image projection surface. The three-dimensional screen has a view field angle limiting filter and a directional reflection screen. The view field angle filter limits the angle of a view field in the left/right direction, the angle being the angle of the projection on the video image projection surface (50) of the screen. The directional reflection screen has two sheets in horizontal and vertical directions. Furthermore, a projection light path between the electronic projector and the polygonal mirror is formed by refracting light through an auxiliary mirror.