Movable Laser Window for Continuous Operation

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Solution Overview

Problem

The existing laser devices require frequent cleaning of the window due to high temperature-induced gas pollution, resulting in a significant workload that affects the device's efficiency and leads to gas wastage during the process.

Innovation Solution

A laser device with a movable window assembly that changes the transmission position of the laser light, allowing for continuous operation without the need for frequent window cleaning, utilizing a sealing assembly with a piston and cylinder to manage gas flow and minimize gas loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the window is fixed at a single transmission position, then the structure is simple, but the window accumulates pollutant and requires frequent cleaning

Engineering Contradiction:
Improvestructure simplicityVSAvoidworking efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent applies the dynamics principle by making the window movable instead of fixed. The window can move along the laser tube to change transmission positions, allowing the system to adapt dynamically during operation. This resolves the contradiction by enabling continuous operation without frequent cleaning while maintaining reasonable structural complexity through a controlled movement mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces a new dimension of movement along the laser tube axis. Instead of a fixed two-dimensional window position, the window gains a third dimension of mobility, allowing it to traverse different positions on the laser tube. This dimensional change enables the window to avoid pollutant accumulation areas and continue operating without frequent cleaning.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If the window is made movable to change transmission position, then continuous operation is enabled, but the device complexity increases

Engineering Contradiction:
Improvecontinuous operation capabilityVSAvoidmovable assembly complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The movable assembly implements dynamics by allowing the window to change its position dynamically during laser operation. The window can move to different transmission positions on the laser tube, enabling continuous operation without frequent cleaning. This dynamic capability directly addresses the productivity improvement while the mechanism is designed to manage the associated complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The movable window system provides a form of self-service by automatically changing transmission positions to avoid pollutant accumulation. Rather than requiring manual intervention for cleaning, the system can self-adjust the window position to maintain optimal transmission, reducing the need for external maintenance and justifying the added complexity.

Inventive Principle:
Principle #25Self-service

3Reliability

If the window is pressed tightly against the laser tube opening for sealing, then sealing effectiveness is improved, but the window may be damaged due to high temperature

Engineering Contradiction:
Improvesealing effectivenessVSAvoidwindow durability
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The sealing mechanism uses dynamics by allowing the window to move rather than remain fixed in one position. The window can be pressed against the laser tube opening for effective sealing when needed, then moved to different positions to avoid excessive heat exposure. This dynamic approach maintains sealing reliability while protecting window strength through position changes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system employs periodic action by alternating between sealing positions and transmission positions. The window is pressed against the opening for sealing during certain phases, then moved to different positions during other phases to avoid continuous heat exposure. This periodic alternation maintains sealing effectiveness while preventing window damage from sustained high temperature.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10133061B2Laser device
Publication Date: 2018.11.20 BOE TECHNOLOGY GROUP CO LTD
  • US10133061B2 patent drawing
  • US10133061B2 patent drawing
  • US10133061B2 patent drawing

AI summary

A laser device is provided. The laser device includes: a laser tube having an opening in both ends thereof, and a fixing apparatus on at least one of the ends of the laser tube. The opening in at least one of the ends of the laser tube is sealed by the fixing apparatus. A movable assembly and a window are provided on the fixing apparatus. The window is movable relatively to the opening of the laser tube when being driven by the movable assembly, to change a transmission position of a laser light generated by the laser tube on the window.