Modular Laser Projection for Robotic Adaptive Optics

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Solution Overview

Problem

Ground-based telescopes face image distortion and blurriness due to atmospheric turbulence, which existing laser adaptive optics systems partially address but require complex and non-portable laser projection systems.

Innovation Solution

A compact and modular laser projection system integrated with a robotic adaptive optics system that automates calibration and operation, using a high-powered laser to measure atmospheric distortions and correct incoming light, and software control to manage various subsystems for efficient image acquisition across different telescopes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a high-powered laser is projected to measure atmospheric distortions, then image quality is improved, but system complexity and portability are worsened

Engineering Contradiction:
Improveatmospheric distortion measurementVSAvoidlaser projection system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The laser projection system is divided into separate functional modules: laser source module, beam control module, and detection module. Each module operates independently but coordinates through standardized interfaces, allowing the system to maintain high measurement precision while reducing overall complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The laser projection system is designed with universal components that can function across multiple telescope platforms. The control module can manage various subsystems (laser, adaptive optics, imaging) through a unified interface, reducing system complexity by eliminating the need for separate control systems for each function.

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

2Productivity

If automated control is implemented to manage subsystems, then operational efficiency is improved, but system complexity is worsened

Engineering Contradiction:
Improveimage acquisition efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control module automatically detects subsystem status and initiates corrective actions without human intervention. The system performs self-diagnosis and self-adjustment, maintaining high operational efficiency while the automated nature of these processes actually reduces the need for complex manual control procedures.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The control module continuously monitors subsystem performance through feedback signals and automatically adjusts parameters to optimize image acquisition. This closed-loop control system improves productivity by maintaining optimal operation without requiring complex manual intervention, as the feedback mechanisms handle adjustments automatically.

Inventive Principle:
Principle #23Feedback

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 provides clear and stable images by compensating for atmospheric distortions and allows for easy replication and customization across various telescopes, enhancing image quality and operational efficiency without human intervention.

Implementation Method 1

The atmosphere contains cells of air at different temperatures with resulting different indices of refraction. The presence of such atmosphere causes the light to become non-planar.

Methodology Applied
Scientific EffectAtmospheric turbulence: Turbulence

Implementation Method 2

A tiny fraction of the laser light from the high-power laser returns back towards the telescope which has similar non-planar optical distortions as the light being observed.

Methodology Applied
Scientific EffectLight scattering: Scattering

Implementation Method 3

Internal measurements and calculations done by the laser adaptive optics system on the shape of the laser light received can then be used to shape the incoming light waves being observed to be flat (planar) again.

Methodology Applied
Scientific EffectWavefront correction:

Data Source

PatentUS9563053B2Systems and methods for modularized control of robotic adaptive optics and laser systems
Publication Date: 2017.02.07 CALIFORNIA INST OF TECH
  • US9563053B2 patent drawing
  • US9563053B2 patent drawing
  • US9563053B2 patent drawing

AI summary

An automated adaptive optics and laser projection system is described. The automated adaptive optics and laser projection system includes an adaptive optics system and a compact laser projection system with related laser guidance programming used to correct atmospheric distortion induced on light received by a telescope. Control of the automated adaptive optics and laser projection system is designed in a modular manner in order to facilitate replication of the system to be used with a variety of different telescopes. Related methods are also described.