Optical Endpoint Marking for Substrate Separation
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Solution Overview
Problem
Existing devices for separating substrates along a dividing line require users to convert end points into coordinates, which is error-prone, and often rely on manual switch-off mechanisms that are inefficient.
Innovation Solution
The device incorporates optical display elements, signal generators, and detector devices to mark and automatically control the end points of the dividing line, allowing operators to easily mark the end points without converting lengths or coordinates, and uses laser or ultrasonic distance measuring systems for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users manually convert end points into coordinates and enter them into the control device, then the separating device can perform the cutting operation, but the process becomes error-prone and time-consuming
Solution Approach 1:
The patent replaces the manual mechanical process of coordinate conversion and data entry with an optical measurement system. The optical display element projects a visual marker at the endpoint, and the detector device automatically detects this marker to obtain coordinate information, eliminating the need for manual calculation and input operations.
Solution Approach 2:
The system performs self-measurement and self-data-entry through the optical display and detection mechanism. The endpoint position is automatically determined by the detector device receiving the optical signal, and the control device automatically processes this information without requiring user intervention for coordinate conversion.
2Measurement precision
If a switch-off ruler display device is used to mark the end point, then the device can indicate the endpoint position, but it requires manual intervention and switches off the saw unit inefficiently
Solution Approach 1:
The patent replaces the mechanical switch-off ruler with an optical display element that projects a visual marker (such as a laser line or light spot) to indicate the endpoint position. This optical system provides continuous visual guidance without requiring physical contact or manual switching operations.
Solution Approach 2:
The detector device continuously monitors the optical signal from the display element and provides real-time feedback to the control device. When the optical marker is detected at the intended endpoint position, the system automatically stops the cutting operation, creating a closed-loop control system that improves both precision and efficiency.
3Extent of automation
If optical display elements with signal generators and detector devices are used to mark end points, then automatic control is enabled and coordinate conversion is eliminated, but the device complexity increases
Solution Approach 1:
The optical display element and detector device serve multiple functions: they mark the endpoint position visually, provide automatic coordinate detection, and enable real-time feedback control. This multi-functional approach consolidates several operations into a single integrated system, reducing overall complexity despite the advanced technology used.
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 enables accurate and error-free marking and control of the separating device, reducing user intervention and improving the precision of the cutting process by automatically transferring end points to the surface, thus enhancing the efficiency and accuracy of the substrate separation.
Implementation Method 1
The first and second display devices (21A, 21B) have an optical display element (22) which marks the end point
Implementation Method 2
The structure of the display devices consisting of an optical display element, a signal generator and a detector device enables an automatic control method
Data Source
Figure 1
Figure 2A~2B
Figure 3A
AI summary
Device (1) for separating a substrate (2) along a separation line comprising a saw unit (3) with a saw blade (6) rotatable about a pivot axis (7), a guide carriage (15) for moving the saw unit (3) along a guide rail (13), and a control device (18) for controlling the saw unit (3) and the guide carriage (15). A display device (21A) is provided for marking an endpoint (EA, EB) of the separation line.