Slow Light Orientation Device for Rapid 3D Tracking

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Solution Overview

Problem

Conventional gyroscopes fail to accurately determine the orientation of objects during rapid pan and tilt movements, especially in space, due to complexity, cost, and the need for complex algorithms and high processing capabilities, and are not effective for objects with uncontrolled movements.

Innovation Solution

A slow light-based orientation indication device with a housing containing sensors and a light source emitting a continuous slow light beam, where the difference in position between sensors indicates the object's orientation, utilizing material or waveguide dispersion to slow down the light, and a computing unit processes signals from sensors to determine orientation in 3D coordinates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional gyroscopes are used to determine orientation, then orientation parameters can be measured, but the device becomes complex and expensive to manufacture

Engineering Contradiction:
Improveorientation measurement accuracyVSAvoidgyroscope system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical gyroscope system with an optical system consisting of a light source, optical path, and sensor array. The light beam traverses multiple optical paths at different orientations, and sensor signals are processed to determine orientation parameters, eliminating complex mechanical components while maintaining measurement capability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces an optical intermediary (light beam) to transfer orientation information from the object to the sensor system. The light beam serves as a mediator that interacts with the object's motion and transfers this information through optical paths to the sensors, simplifying the direct measurement mechanism

Inventive Principle:
Principle #24Intermediary (Mediator)

2Speed

If conventional gyroscopes are used for rapid movements, then orientation can be tracked, but measurement accuracy deteriorates during pan and tilt movements

Engineering Contradiction:
Improveobject movement speedVSAvoidorientation measurement accuracy
Core Design Contradiction:
SpeedVSMeasurement precision

Solution Approach 1:

The patent pre-configures multiple optical paths at different fixed orientations before the object moves. When the object undergoes rapid pan and tilt movements, the light beam already has established paths to detect these movements, allowing accurate tracking without the lag or inaccuracy that plagues conventional gyroscopes during rapid motion

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent creates a dynamic measurement system where the light beam continuously traverses multiple optical paths as the object moves. The system adapts to rapid movements by maintaining multiple simultaneous measurement paths, allowing real-time accurate tracking of orientation changes during pan and tilt operations

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If conventional gyroscopes are used in space, then orientation determination is attempted, but accuracy is lost due to lack of gravity reference

Engineering Contradiction:
Improvespace environment adaptabilityVSAvoidorientation measurement accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent replaces gravity-dependent mechanical gyroscope systems with an optical measurement system that determines orientation through light path geometry and sensor measurements. This substitution eliminates the need for gravity reference, enabling accurate orientation determination in space environments where gravity is absent or negligible

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental measurement parameter from gravity-based (conventional gyroscopes) to light-based optical path measurements. By using the speed of light and geometric relationships of optical paths instead of gravitational force, the system becomes adaptable to space environments while maintaining measurement precision

Inventive Principle:
Principle #35Parameter changes

4Measurement precision

If conventional gyroscopes with complex algorithms are used, then orientation can be determined, but processing requirements and costs increase

Engineering Contradiction:
Improveorientation determination accuracyVSAvoidsystem manufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent replaces complex mechanical gyroscope systems requiring sophisticated algorithms with a simpler optical system. The light source and sensor array with pre-configured optical paths provide direct measurement capability that requires less complex signal processing, reducing both manufacturing costs and computational requirements

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 device provides accurate orientation determination in 3D coordinates, even during rapid movements, is cost-effective, simple in construction, and functions without gravity, reducing the need for separate devices for each axis and overcoming limitations of conventional gyroscopes.

Implementation Method 1

utilizing material or waveguide dispersion to slow down the light

Methodology Applied
Scientific EffectMaterial dispersion: Dispersion (of waves)

Implementation Method 2

utilizing material or waveguide dispersion to slow down the light

Methodology Applied
Scientific EffectWaveguide dispersion: Waveguide (optics)

Data Source

PatentUS11287243B2Device for determining orientation of an object
Publication Date: 2022.03.29 SRINIVASAN TILAK
  • US11287243B2 patent drawing
  • US11287243B2 patent drawing
  • US11287243B2 patent drawing

AI summary

A device (100) for determining orientation of an object (101) is disclosed. The device (100) comprises of a housing (1) configured with a plurality of sensors (4), wherein the plurality of sensors (4) are provided on a surface of the housing. At least one light source (2), is fixed within the housing (1), wherein the at least one light source is configured to emit a continuous light beam (3) on at least one of the plurality of sensors (4) at an initial position (IP) of the object (101). The speed of the continuous light beam emitted by the at least one light source is less than a speed of light. The continuous slow light beam (3) is configured to momentarily impinge on one or more of the plurality of sensors (4) in the same incident ray, when the object (101) is displaced to a displaced position (DP).