Rotary Laser Tilt Setting via Periodic Beam Interruption
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Solution Overview
Problem
Conventional rotary laser irradiating systems require complex configurations and high manufacturing costs, with inefficient operation procedures for setting tilt directions and angles, making them cumbersome and time-consuming.
Innovation Solution
A rotary laser irradiating system with a light emitting unit, rotator, tilt driving unit, and control unit that forms a tilted reference axis indicating range, allowing for easy alignment and tilt direction setting using a photodetection device, reducing the need for angle detectors and simplifying the operation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional photodetection device is used to detect the cross point by receiving the laser beam, then the tilt direction can be set, but the manufacturing cost increases due to requiring angle detectors and the operation time becomes very long
Solution Approach 1:
The laser beam is turned off periodically at specific angular positions (every 90 degrees) to create a tilted reference axis indicating range. This periodic interruption allows the photodetection device to easily detect the reference axis position without requiring complex continuous measurement, significantly reducing operation time while maintaining accuracy
Solution Approach 2:
The system pre-establishes a tilted reference axis by turning off the laser beam at predetermined angular positions before actual tilt measurement begins. This preliminary action creates a visual reference that guides the photodetection device, eliminating the need for complex real-time calculations and reducing overall operation time
2Measurement precision
If angle detectors are added to detect the direction of the main unit, then the tilt direction can be accurately detected, but the manufacturing cost increases
Solution Approach 1:
The patent introduces a tilted reference axis (created by turning off the laser beam at specific positions) as an intermediary element between the laser source and the photodetection device. This intermediary provides a visual reference that eliminates the need for complex angle detectors, reducing manufacturing cost while maintaining detection accuracy
Solution Approach 2:
Instead of using expensive angle detectors to directly measure the main unit direction, the system creates an optical copy/reference (the tilted reference axis formed by laser beam interruption) that represents the desired tilt direction. The photodetection device then measures this optical copy, achieving the same functional result at lower cost
3Ease of operation
If the photodetection device is used to detect the cross point, then the tilt direction can be determined, but the operation complexity and burden on operator increase
Solution Approach 1:
The system uses the presence and absence of laser beam (visual state change) at specific angular positions to indicate the tilted reference axis. This visual indication simplifies the operation for the user, who only needs to detect when the laser beam is turned off to identify the reference axis position, reducing operational complexity
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 enables efficient and cost-effective setting of tilt directions and angles, significantly reducing operation time and complexity, while maintaining accurate alignment of the rotary laser irradiating system.
Implementation Method 1
a light emitting unit for emitting a laser beam
Implementation Method 2
the photodetection device 2 has a photodetection unit 7 and detects the laser beam transmitted through the photodetection unit 7
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A rotary laser irradiating system, comprising a light emitting unit (41, 42) for emitting a laser beam, a rotator for forming a reference plane by projecting the laser beam by rotary irradiation, a tilt driving unit (21) for tilting the reference plane, a control unit (35) for controlling a light emission of the light emitting unit, and a tilted axis indicating means (35, 44) for turning off the laser beam so as to form a tilted reference axis indicating range in a tilt setting reference axis direction for setting a tilt.