Robotic Non-Planar Projection Synchronous Rotation

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Solution Overview

Problem

Existing inner projection technologies are limited by their application to non-movable, flat or curved display devices, restricting their scope and causing image distortion on movable, non-planar surfaces.

Innovation Solution

A robotic system with a non-planar projection surface and servo motors allows for synchronous rotation of the projection surface and projection element, using optical reflection elements and image correction methods like indentation correction, algorithm modification, and lens design to maintain a fixed display area without distortion on movable, non-planar surfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If inner projection technology is used on curved display devices, then image display capability is improved, but the devices cannot be moved due to various restrictions

Engineering Contradiction:
Improveapplication scopeVSAvoidmovability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies the dynamics principle by making the projection surface movable through robotic mechanisms. The curved projection surface can rotate and change orientation while maintaining its curved shape, transforming a static curved display into a dynamic, movable projection system that adapts to different spatial configurations

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If projection is performed on non-planar surfaces, then display flexibility is improved, but image distortion occurs

Engineering Contradiction:
Improvedisplay flexibilityVSAvoidimage quality
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies preliminary action by pre-calculating and pre-distorting the projection image based on the specific curved surface geometry. Before projection, the image is algorithmically adjusted to compensate for the expected distortion, so that when projected onto the curved surface, it appears undistorted to the viewer

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies parameter changes by dynamically adjusting projection parameters such as focal length, projection angle, and image mapping coordinates based on the curved surface characteristics. The system modifies these parameters in real-time to optimize image quality on different curved geometries

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If the projection surface is made movable, then application range is expanded, but synchronous rotation control complexity increases

Engineering Contradiction:
Improveapplication rangeVSAvoidcontrol system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by using a robotic manipulation system that can handle multiple curved projection surfaces with different geometries using the same basic mechanism. The system is designed to work with various types of curved surfaces (spherical, cylindrical, free-form) through a unified control approach, reducing overall system complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables the application of inner projection technology on movable, non-planar surfaces, correcting images to prevent distortion and expanding the technology's range of use, ensuring clear projections on curved surfaces.

Implementation Method 1

the inner projection element reflects the target image to the non-planar projection surface via the optical reflection element

Methodology Applied
Scientific EffectOptical reflection: Reflection

Data Source

PatentUS11485020B2Robotic system having non-planar inner projection of movable mechanism
Publication Date: 2022.11.01 NUWA ROBOTICS CORP
  • US11485020B2 patent drawing
  • US11485020B2 patent drawing

AI summary

A robotic system having movable mechanism of a non-planar inner projection is provided. It comprises a non-planar projection surface, a servo motor, an inner projection element, and a support frame. The servo motor is connected to the non-planar projection surface, and the non-planar projection surface can be rotated synchronously by the servo motor drive. The inner projection element is disposed relative to the non-planar projection surface, the inner projection element generates a target image, and the target image is projected onto the non-planar projection surface to form a display area, and the display area has a fixed boundary. The servo motor and the inner projection element are disposed on the support frame, and when the non-planar projection surface is synchronously rotated by the servo motor, the inner projection element also rotates synchronously.