Rotating Screen Projection System with Dynamic Matte for 360 Viewing
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Solution Overview
Problem
Conventional image projection systems limit viewing angles due to glare, spill-light, and keystone distortion when projecting onto a shaped, revolving screen, restricting the audience's viewing area and degrading image quality.
Innovation Solution
A system utilizing multiple projectors and a dynamically moving screen, synchronized with a black 'moving matte' to minimize glare and spill-light, and a signal processor to correct keystone distortion, ensuring optimal 360° viewing with minimal distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a shaped, revolving screen is used to enable 360° viewing, then the viewing angle is improved, but glare and spill-light increase
Solution Approach 1:
The patent applies dynamics by making the screen rotate dynamically rather than remaining static. The screen rotates to different positions during the projection cycle, allowing the projection source to be positioned away from the audience's line of sight at any given moment, thereby eliminating glare while maintaining 360° viewing capability.
Solution Approach 2:
The patent employs periodic action by rotating the screen through specific angular positions in a controlled sequence. The screen rotates to predetermined positions during different time intervals of the projection cycle, ensuring that the projection source is never in the audience's direct line of sight, thus eliminating glare while maintaining wide viewing angles.
2Adaptability or versatility
If a shaped, revolving screen is used to enable 360° viewing, then the viewing angle is improved, but spill-light increases
Solution Approach 1:
The dynamic rotation of the screen allows the projection source to be positioned optimally for each viewing angle at different times. This temporal separation of projection and viewing positions prevents light from spilling onto the audience area, as the screen is rotated to positions where the projection source is not visible to the audience during any given moment.
Solution Approach 2:
The periodic rotation of the screen through controlled angular positions ensures that during each projection phase, the light is directed away from the audience area. The screen rotates to specific positions in a repeating cycle, creating temporal separation between the projection source and the audience, thereby eliminating spill-light while maintaining 360° viewing capability.
3Adaptability or versatility
If the projection axis is not perpendicular to the viewing screen, then the screen can be positioned for 360° viewing, but keystone distortion occurs
Solution Approach 1:
The patent applies dynamics by rotating the screen to different angular positions during the projection cycle. This allows the system to accommodate multiple viewing angles without requiring the projection axis to remain perpendicular to a fixed screen position. The dynamic repositioning of the screen compensates for the non-perpendicular projection angle, eliminating keystone distortion while enabling 360° viewing.
Solution Approach 2:
The periodic rotation of the screen through controlled angular positions allows the system to maintain proper image geometry for multiple viewing angles. By rotating the screen to specific positions in a repeating cycle, the system compensates for non-perpendicular projection angles at each phase, eliminating keystone distortion while enabling versatile 360° viewing.
Data Source
AI summary
A shaped screen rotates through one or more projected images of two or more projectors operating simultaneously, resulting in a dynamic, kinetic image surface which may be viewed equally well from a plurality of angles, up to 360° horizontally. By utilizing at least two projectors, the resultant composite image on the rotating screen is not only optimally viewed from any angle, but it is also animated by the movement of the screen itself, as well as by any animation within the projected image.