Dual-Beam Laser Marking Head Distance Alignment
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Solution Overview
Problem
Current laser marking and scanning systems are limited by laborious and inaccurate methods for determining the pre-determined distance between the marking head and the target, often requiring physical objects or complex diode setups, which increase size, weight, and calibration complexity.
Innovation Solution
An electromagnetic radiation system with a dual beam path configuration, where a calibration beam and a marking beam are used to guide the user to the correct distance, utilizing green light for visibility and triangulation to simplify setup, reducing the need for physical objects and complex diodes, and enabling automatic adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical objects such as rulers are used to introduce the pre-determined distance between the marking head and the target, then the distance can be manually adjusted, but the process becomes slow, laborious and inaccurate
Solution Approach 1:
The patent replaces the mechanical ruler-based distance measurement system with an optical system. Two light emitting diodes emit converging radiation beams that coincide at the pre-determined distance, allowing optical alignment to replace mechanical measurement. This substitution eliminates the need for physical rulers and manual measurement, thereby improving both precision and reducing setup time.
Solution Approach 2:
The patent introduces light emitting diodes as intermediary elements to establish the pre-determined distance. The diodes emit radiation beams that serve as a mediator to indicate when the correct distance is achieved through beam coincidence, replacing the direct mechanical measurement approach with an indirect optical indication method.
2Measurement precision
If two light emitting diodes are used to emit converging radiation beams for introducing the pre-determined distance, then the distance can be indicated through beam coincidence, but the size and weight of the marking head increases
Solution Approach 1:
The patent extracts the distance measurement function from the main marking head structure by using separate light emitting diodes positioned on the marking head. These diodes are carefully positioned with knowledge of the pre-determined distance so their beams coincide at the target, providing distance indication without requiring the entire marking head to be heavier or more complex.
3Measurement precision
If two light emitting diodes are used to emit converging radiation beams, then the pre-determined distance can be indicated, but the system becomes complicated and expensive requiring calibration of three different radiation beam paths
Solution Approach 1:
The patent makes the light emitting diodes serve multiple functions: they provide distance indication through beam coincidence and also serve as alignment references during installation. The diodes are positioned with built-in knowledge of the pre-determined distance, eliminating the need for separate calibration procedures and reducing the overall system 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
This solution simplifies the setup process, improves accuracy, reduces the size and weight of the marking head, and enhances flexibility in production lines by using a dual beam path configuration with green light for visibility and automatic adjustment.
Implementation Method 1
providing two light emitting diodes on the marking head. Each diode is located on opposite sides of the marking head. The diodes emit converging radiation beams.
Implementation Method 2
The diodes are carefully positioned and installed on the marking head with knowledge of the pre-determined distance such that the radiation beams emitted by the diodes coincide with one another at the pre-determined distance.
Data Source
AI summary
An electromagnetic radiation system for directing an electromagnetic radiation beam (11) at a target (28) having a first arrangement (12) in which the radiation beam (11) is directed along a marking beam path that is within a marking range of the electromagnetic radiation system and a second arrangement (12, 15) in which the radiation beam (27) is directed along a different beam path (27) that is not within the marking range of the electromagnetic radiation system, wherein a positional relationship between the marking beam path (11) and the different beam path (27) satisfies a predetermined condition at the target (28) when the electromagnetic radiation system is at a predetermined distance (29) from the target (28).