Dual Laser Targeting System for Directed Energy Devices

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Solution Overview

Problem

Current targeting systems for directed energy devices are inefficient due to time-consuming data gathering and computational challenges, and often waste energy by using reflected beams for targeting, which diverts energy away from the primary target.

Innovation Solution

A system utilizing two lasers, where a first laser projects a primary beam and a second laser scans in a curvilinear pattern to detect reflections, allowing the first laser to be precisely aligned with the target without wasting energy, using shared optics and a control system to determine the optimal targeting location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If reflected energy of the primary beam is used for targeting, then targeting capability is achieved, but energy is wasted because a portion of the primary energy beam is diverted for sampling

Engineering Contradiction:
Improvetargeting capabilityVSAvoidenergy waste
Core Design Contradiction:
Measurement precisionVSLoss of energy

Solution Approach 1:

The system divides the laser beam into two separate beams: a primary beam for delivering energy to the target and a secondary beam for targeting and alignment. The secondary beam is generated by dividing a portion of the primary beam and directing it through a separate optical path with a scanner, allowing independent optimization of energy delivery and targeting functions without compromising either.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A secondary laser beam acts as an intermediary between the operator and the target. This secondary beam is scanned across the target area to establish the precise pointing direction, while the primary beam follows the same optical axis to deliver energy. The secondary beam serves as a mediator that enables accurate targeting without requiring diversion of the primary energy beam.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If imaging systems are used to aim directed energy devices, then targeting is achieved, but the process is time-consuming and computationally challenging

Engineering Contradiction:
Improvetargeting accuracyVSAvoiddata gathering time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system replaces complex imaging and computational systems with a simpler optical scanning mechanism. Instead of capturing images and processing data to determine target location, the system uses a scanned laser beam that directly establishes the pointing direction through optical reflection and detection, significantly reducing computational requirements and time.

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

Solution Approach 2:

The system creates a simplified optical copy of the targeting process. Rather than using complex imaging systems to capture and analyze the target, a secondary laser beam is scanned across the target area, creating a direct optical measurement path that replicates the essential targeting function with minimal computational overhead.

Inventive Principle:
Principle #26Copying

3Measurement precision

If imaging systems are used for targeting, then targeting capability is provided, but the system is subject to atmospheric interferences

Engineering Contradiction:
Improvetargeting capabilityVSAvoidatmospheric interference
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The system extracts the targeting function from the primary energy beam path by introducing a separate secondary beam. This secondary beam is specifically designed for optical scanning and targeting, while the primary beam maintains its full energy for delivery. By separating these functions, the system reduces the impact of atmospheric interference on the energy delivery path while maintaining targeting capability through the optimized secondary optical path.

Inventive Principle:
Principle #2Taking out (Extraction)

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

This approach enhances targeting accuracy and efficiency by focusing the primary energy beam directly on the target, reducing energy wastage and mitigating atmospheric interference, while maintaining alignment with the targeting system.

Implementation Method 1

A particular system includes a first laser and a second laser

Methodology Applied
Scientific EffectLaser: Laser

Implementation Method 2

The scanning system is adapted to movably direct the second laser in a pattern around a pointing location of the first laser

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS8675186B2Systems and methods for targeting directed energy devices
Publication Date: 2014.03.18 THE BOEING CO
  • US8675186B2 patent drawing
  • US8675186B2 patent drawing
  • US8675186B2 patent drawing

AI summary

Systems and methods for targeting a directed energy system are provided. A particular system includes a first laser and a second laser. The system also includes a scanning system coupled to the first laser and the second laser. The scanning system is adapted to movably direct the second laser in a pattern around a pointing location of the first laser.