WO2009128577A1 - Laser marking controller and laser marking system including the same - Google Patents

Laser marking controller and laser marking system including the same Download PDF

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Publication number
WO2009128577A1
WO2009128577A1 PCT/KR2008/002191 KR2008002191W WO2009128577A1 WO 2009128577 A1 WO2009128577 A1 WO 2009128577A1 KR 2008002191 W KR2008002191 W KR 2008002191W WO 2009128577 A1 WO2009128577 A1 WO 2009128577A1
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WO
WIPO (PCT)
Prior art keywords
laser
signal
scanner
controller
standby
Prior art date
Application number
PCT/KR2008/002191
Other languages
French (fr)
Inventor
Hyung-Gu Kim
Young-Gil Kwon
Original Assignee
Eo Technics Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eo Technics Co., Ltd. filed Critical Eo Technics Co., Ltd.
Priority to PCT/KR2008/002191 priority Critical patent/WO2009128577A1/en
Publication of WO2009128577A1 publication Critical patent/WO2009128577A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head

Definitions

  • the present invention relates to a laser marking controller, and more particularly, to a laser marking controller that has a plurality of galvanometer scanners that may be connected to each other for driving them in a synchronized status.
  • the present invention also relates to a laser marking system using a plurality of laser marking controllers that are connected to each other.
  • a laser marking controller is used as a controlling board in a laser marking system for controlling a galvanometer scanner that deflects laser beams emitted from a laser oscillator at a desired angle, and also for controlling a laser controller that controls the laser beams emitted from the laser oscillator.
  • a positional angle and driving speed of the galvanometer scanner are controlled by the laser marking controller so that a desired image can be marked, and the intensity and frequency of the laser beam can be controlled via the laser marking controller so that the marked image may have high brightness and clear shape.
  • FIG. 1 is a schematic diagram showing a laser marking system including a conventional laser marking controller
  • FIG. 2 is a plan view of the laser marking controller shown in FIG. 1.
  • the laser marking system includes a computer 23 controlling the laser marking system, a laser oscillator 21 emitting laser beams 1, a laser controller 22 controlling the intensity and frequency of the laser beam 1 emitted from the laser oscillator 21, and galvanometer scanners 24 marking desired characters or figures by deflecting the laser beams 1 incident from the laser oscillator 21 at desired angles.
  • the computer 23 includes a laser marking controller 10 for controlling the galvanometer scanners 24 and the laser controller 22.
  • the plurality of galvanometer scanners 24 are used and a plurality of laser marking controllers 10 are also used for controlling each of the galvanometer scanners 24.
  • the laser beam 1 is divided by a beam division unit, for example, a beam splitter (not shown), and then, irradiated onto the plurality of substrates 2 via reflecting mirrors 25.
  • Each of the galvanometer scanners 24 includes an X-axis galvanometer scanner and a Y-axis galvanometer scanner.
  • the laser marking controller 10 includes a scanner driving signal generator 15, a laser controlling signal generator 16, a scanner standby signal generator 13, a transmission signal generator 14, a scanner controlling signal output end 11, and a laser controlling signal output end 12.
  • the scanner driving signal generator 15 generates a scanner driving signal in relation to a positional angle and a driving speed of the galvanometer scanner 24.
  • the transmission signal generator 14 generates a transmission signal for synchronizing the scanner driving signals, and the transmission signal includes a clock signal and a synchronization signal.
  • the transmission signal and the scanner driving signal are combined to form a scanner controlling signal, and the scanner controlling signal is transmitted to the galvanometer scanner 24 through the scanner controlling signal output end 11.
  • the scanner standby signal generator 13 generates a scanner standby signal, which has a value T when the scanner driving signal is generated and has a value '0' when the scanner driving signal is not generated due to an error, according to whether the scanner driving signal is generated or not.
  • the laser controlling signal generator 16 generates a signal for controlling the intensity and the frequency of the laser beam 1.
  • the scanner standby signal output from the scanner standby signal generator 13 is input into the laser controlling signal generator 16. If the scanner standby signal has the value T, the laser controlling signal output from the laser controlling signal generator 16 is transmitted to the laser controller 22 through the laser controlling signal output end 12. In addition, if the scanner standby signal has the value '0', no laser controlling signal is output from the laser controlling signal output end 12. Disclosure of Invention Technical Problem
  • the conventional laser marking system shown in FIGS. 1 and 2 does not include an input/output end structure for transmitting signals between the plurality of laser marking controllers 10, and thus, the laser marking controllers 10 installed in the computer 23 operate independently without communicating with each other. Therefore, if laser marking is performed onto a plurality of substrates 2, the plurality of galvanometer scanners 24 are not synchronized.
  • the present invention provides a laser marking controller having an improved structure so that laser marking can be performed onto a plurality of substrates by synchronizing a plurality of galvanometer scanners, and a laser marking system including the laser marking controller.
  • a laser marking controller which outputs a scanner controlling signal that includes a scanner driving signal driving a galvanometer scanner for reflecting an incident laser beam at a desired angle and a transmission signal for synchronizing the scanner driving signal, and a laser controlling signal transmitted to a laser controller for adjusting an intensity and a frequency of the laser beam
  • the laser marking controller is used in a laser marking system that marks desired characters or diagrams on a substrate by irradiating the laser beam onto the substrate, the laser marking controller comprising: an input unit receiving the transmission signal, a scanner standby signal indicating whether the scanner driving signal is generated, and a laser standby signal determining whether the laser controlling signal will be output; a first output unit outputting the transmission signal, the scanner standby signal, and the laser standby signal; a second output unit outputting the scanner controlling signal and the laser controlling signal respectively to the galvanometer scanner and the laser controller; a scanner standby signal generator generating the scanner standby signal; and a calculator calculating the
  • the laser marking controller may further include: a transmission signal generator generating the transmission signal; a DIP switch generating a signal for selecting one of a master mode and a slave mode; a first multiplexer selecting one of the transmission signal output from the transmission signal generator and the transmission signal input through the input unit and outputting the selected signal according to the signal of the DIP switch; and a second multiplexer selecting one of the signal output from the calculator and the laser standby signal input through the input unit and outputting the selected signal according to the signal of the DIP switch.
  • the input unit may include a scanner standby signal input end to which the scanner standby signal is input, a laser standby signal input end to which the laser standby signal is input, and a transmission signal input end to which the transmission signal is input.
  • a high signal may be input to a terminal of the calculator connected to the scanner standby signal input end.
  • the first output unit may include a scanner standby signal output end outputting the scanner standby signal, a laser standby signal output end outputting the laser standby signal, and a transmission signal output end outputting the transmission signal.
  • the second output unit may include: a scanner driving signal generator generating the scanner driving signal; a scanner controlling signal output end outputting a scanner controlling signal, which is formed by combining the scanner driving signal output from the scanner driving signal generator and the transmission signal, to the galvanometer scanner; a laser controlling signal generator generating the laser controlling signal; and a laser controlling signal output end outputting the laser controlling signal output from the laser controlling signal generator to the laser controller according to the laser standby signal.
  • the calculator may be a logical multiplication unit that logically multiplies the scanner standby signal output from the scanner standby signal generator with the scanner standby signal input through the input unit and outputs the multiplication result.
  • a laser marking system including: a laser oscillator emitting laser beam; a laser controller adjusting an intensity and a frequency of the laser beam output from the laser oscillator; a plurality of galvanometer scanners marking desired characters or diagrams by deflecting the laser beam emitted from the laser oscillator at desired angles; and a plurality of laser marking controller for controlling the plurality of galvanometer scanners and the laser controller, wherein the plurality of laser marking controllers are connected to each other for sharing synchronization signals so as to drive the plurality of galvanometer scanners in synchronization with each other.
  • the laser marking controller includes the input/output ends, through which the signals can be transmitted, so as to share the signals for synchronizing the neighboring laser marking controllers with each other. Therefore, the plurality of galvanometer scanners can be driven in communication with each other.
  • one of the plurality of laser marking controllers is used in the master mode, and the other laser marking controllers are used in the slave mode to synchronize the plurality of galvanometer scanners. Otherwise, the plurality of galvanometer scanners can be used in asynchronous states by using the plurality of laser marking controllers in the slave mode. Therefore, various laser marking systems can be embodied. Description of Drawings
  • FIG. 1 is a schematic diagram of a laser marking system including a conventional laser marking controller
  • FIG. 2 is a plan view of the laser marking controller shown in FIG. 1;
  • FIG. 3 is a schematic diagram showing a laser marking system including a laser marking controller according to an embodiment of the present invention
  • FIG. 4 is a diagram showing flows of signals when a plurality of laser marking controllers shown in FIG. 3 are used
  • FIG. 5 is a plan view of the laser marking controller of FIG. 3.
  • FIG. 3 is a schematic diagram of a laser marking system including a laser marking controller according to an embodiment of the present invention
  • FIG. 4 is a diagram showing flows of signals when a plurality of laser marking controllers shown in FIG. 3 are used
  • FIG. 5 is a plan view of the laser marking controller of FIG. 3.
  • a laser marking system 200 includes a computer 230 controlling the entire marking system, a laser oscillator 210 emitting laser beams 1, a laser controller 220 controlling the intensity and frequency of the laser beam 1 emitted from the laser oscillator 210, and a plurality of galvanometer scanners 240 for marking desired characters or figures by deflecting the laser beam 1 incident from the laser oscillator 210.
  • the laser marking system 200 includes a beam transmission unit, for example, a reflecting mirror 250, for transmitting the laser beam 1 emitted from the laser oscillator 210 to the galvanometer scanners 240.
  • the laser beam 1 is divided by a beam division unit, for example, a beam splitter (not shown), and then irradiated onto a plurality of substrates 2.
  • a beam division unit for example, a beam splitter (not shown)
  • the laser oscillator 210, the laser controller 220, the galvanometer scanner 240, the reflecting mirror 250, and the beam splitter are well known in the art, and thus, detailed descriptions thereof are omitted.
  • a plurality of laser marking controllers 100a, 100b, 100c, and lOOd are installed in the computer 230 for controlling the galvanometer scanners 240 and the laser controller 220.
  • the plurality of galvanometer scanners 240 are used and the plurality of laser marking controllers 100a, 100b, 100c, and lOOd are also used to control the galvanometer scanners 240.
  • the laser marking system 200 according to the present embodiment is different from the conventional laser marking system in that the plurality of laser marking controllers 100a, 100b, 100c, and lOOd are connected to each other so as to share a synchronization signal in order to drive the plurality of galvanometer scanners 240 after synchronizing them.
  • Each of the plurality of laser marking controllers 100a, 100b, 100c, and lOOd generates a scanner controlling signal for controlling the galvanometer scanner 240 that deflects the laser beam 1 at a desired angle, and a laser controlling signal that is transmitted to the laser controller 220 to adjust the intensity and frequency of the laser beam 1.
  • the scanner controlling signal is a signal formed by combining a scanner driving signal relating to the positional angle and the moving speed of the galvanometer scanner 240, and a transmission signal that synchronizes the scanner driving signal and performs as a medium transmitting the scanner driving signal to the laser controller 220.
  • Each of the laser marking controllers 100a, 100b, 100c, and lOOd includes a DIP switch 110, an input unit, a first output unit, a second output unit, a scanner standby signal generator 121, a transmission signal generator 141, a calculator, a first multiplexer 160, and a second multiplexer 170.
  • the DIP switch 110 is a switch for selecting whether each of the laser marking controllers 100a, 100b, 100c, and lOOd will be used in a master mode or a slave mode.
  • a switch controlling signal corresponding to the selected mode between the master mode and the slave mode is transmitted to the first multiplexer 160 and the second multiplexer 170 that will be described later.
  • the input unit receives the scanner standby signal, a laser standby signal, and the transmission signal from the neighboring laser marking controller 100a, 100b, 100c, or 10Od.
  • the scanner standby signal indicates whether or not the scanner driving signal is generated.
  • the scanner standby signal has a value T when the scanner driving signal that will be output to the galvanometer scanner 240 is generated, and has a value '0' when the scanner driving signal is not generated due to an error.
  • the laser standby signal is a signal for determining whether or not the laser controlling signal will be output to the laser controller 220, and has a value T or '0'. If the laser standby signal has the value T, the laser controlling signal is output to the laser controller 220, and if the laser standby signal has the value '0', the laser controlling signal is not output to the laser controller 220.
  • the transmission signal includes a clock signal and a synchronization signal. Since the clock signal and the synchronization signal are well known in the art, detailed descriptions thereof are omitted.
  • the input unit includes a scanner standby signal input end 122 receiving the scanner standby signal from the neighboring laser marking controllers 100a, 100b, 100c, or 10Od, and a laser standby signal input end 132 receiving the laser standby signal, and a transmission signal input end 142 receiving the transmission signal.
  • the first output unit outputs the scanner standby signal, the laser standby signal, and the transmission signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od.
  • the first output unit includes a scanner standby signal output end 123 outputting the scanner standby signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od, a laser standby signal output end 133 outputting the laser standby signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od, and a transmission signal output end 143 outputting the transmission signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od.
  • the second output unit outputs the scanner controlling signal and the laser controlling signal respectively to the galvanometer scanner 240 and the laser controller 220, and includes a scanner driving signal generator 124, a scanner controlling signal output end 125, a laser controlling signal generator 134, and a laser controlling signal output end 135.
  • the scanner driving signal generator 124 generates a scanner driving signal relating to the position angle and the driving speed of the galvanometer scanner 240.
  • the scanner controlling signal output end 125 is a terminal outputting the scanner controlling signal, which is formed by combining the transmission signal and the scanner driving signal output from the scanner driving signal generator 124, to the galvanometer scanner 240.
  • the laser controlling signal generator 134 generates a signal for controlling the intensity and frequency of the laser beam 1.
  • the laser controlling signal output end 135 is a terminal outputting the laser controlling signal output from the laser controlling signal generator 134 to the laser controller 220.
  • the scanner standby signal generator 121 generates the scanner standby signal that indicates whether or not the scanner driving signal is generated, and the transmission signal generator 141 generates the transmission signal for synchronizing the scanner driving signal.
  • the calculator calculates the scanner standby signal output from the scanner standby signal generator 121 and the scanner standby signal receiving from the neighboring laser marking controllers 100a to lOOd through the scanner standby signal input end 122.
  • the calculator according to the present embodiment is a logical multiplication unit 150 that logically multiplies the two scanner standby signals and outputs the multiplication result.
  • a first input end 151 of the logical multiplication unit 150 is connected to the scanner standby signal input end 122, and a second input end 152 of the logical multiplication unit 150 is connected to the scanner standby signal generator 121.
  • the logical multiplication unit 150 outputs a signal having a value T only when both signals from the scanner standby signal input end 122 and the scanner standby signal generator 121 have values T.
  • a high signal is input to the first input end 151 of the logical multiplication unit 150, that is, the first input end 151 of the logical multiplication unit 150 is in a normal high state.
  • the first multiplexer 160 outputs the transmission signal output from the transmission signal generator 141 when the DIP switch 110 is set in the master mode, and outputs the transmission signal input from the neighboring laser marking controller 100a to lOOd through the transmission signal input end 142 when the DIP switch 110 is set in the slave mode.
  • the first input end 161 of the first multiplexer 160 is connected to the transmission signal generator 141, and a second input end 162 of the first multiplexer 160 is connected to the transmission signal input end 142.
  • the second multiplexer 170 outputs the signal input through the logical multiplication unit 150 when the DIP switch 110 is set in the master mode, and outputs the laser standby signal input from the neighboring laser marking controllers 100a to lOOd through the laser standby signal input end 132 when the DIP switch 110 is set in the slave mode.
  • a first input end 171 of the second multiplexer 170 is connected to the output end 153 of the logical multiplication unit 150, and a second input end 172 of the second multiplexer 170 is connected to the laser standby signal input end 132.
  • the scanner standby signal generator 121 of a final slave laser marking controller lOOd (represented as 'slave 3' in FIG. 4) outputs the scanner standby signal indicating whether the scanner driving signal is generated.
  • the scanner standby signal output from the scanner standby signal generator 121 and the scanner standby signal input through the scanner standby signal input end 122 are logically multiplied, and then, a signal resulting from the logical multiplication is output through the output end 153 of the logical multiplication unit 150.
  • the signal output from the output end 153 of the logical multiplication unit 150 is transmitted to the scanner standby signal input end 122 of a superior slave laser marking controller 100c (represented as 'slave 2' in FIG.
  • the scanner standby signal is transmitted from the final slave laser marking controller lOOd to a master laser marking controller 100a (represented as 'master' in FIG. 4).
  • the scanner standby signal is input into the logical multiplication unit 150 of the master laser marking controller 100a, and the signal of the output end 153 of the logical multiplication unit 150 is output through the second multiplexer 170 connected to the output end 153.
  • the signal output from the output end 173 of the second multiplexer 170 is transmitted to the laser standby signal input end 132 of the subordinate slave laser marking controller 100b (represented as 'slave 1' in FIG. 4) through the laser standby signal output end 133 that is connected to the output end 173.
  • the laser standby signal input through the laser standby signal input end 132 passes through the second multiplexer 170 and is transmitted to the laser standby signal input end 132 of the neighboring subordinate slave laser marking controller 100c or lOOd through the laser standby signal output end 133.
  • the scanner standby signal transmitted to the master laser marking controller 100a from the final slave laser marking controller lOOd is converted into the laser standby signal in the master laser marking controller 100a. That is, the emission of the laser beam 1 from the laser oscillator 210 is determined according to whether the scanner driving signal is generated. As represented by a second signal flow 182 in FIG. 4, the laser standby signal is transmitted from the master laser marking controller 100a to the final slave laser marking controller 10Od.
  • the transmission signal generated by the transmission signal generator 141 of the master laser marking controller 100a is output through the first multiplexer 160.
  • the signal of the output end 163 of the first multiplexer 160 is transmitted to the transmission signal input end 142 of the subordinate slave laser marking controller 100b through the transmission signal output end 143 that is connected to the output end 163.
  • the transmission signal input through the transmission signal input end 142 passes through the first multiplexer 160, and is transmitted to the transmission input end 142 of the subordinate laser marking controller 100b, 100c, or lOOd through the transmission signal output end 143.
  • the transmission signal is transmitted from the master laser marking controller 100a to the final slave laser marking controller 10Od.
  • the plurality of laser marking controllers 100a to lOOd share the transmission signal, and thus, the plurality of galvanometer scanners 240 respectively connected to the plurality of laser marking controllers 100a, 100b, 100c, and lOOd may be driven after being synchronized by the same transmission signal.
  • the output end 163 of the first multiplexer 160 is also connected to the scanner driving signal generator 124, and thus, the transmission signal output from the output end 163 of the first multiplexer 160 and the scanner driving signal output from the scanner driving signal generator 124 are combined and transmitted to the galvanometer scanner 240 through the scanner controlling signal output end 125.
  • the output end 173 of the second multiplexer 170 is also connected to the laser controlling signal generator 134, and thus, it is determined whether the laser controlling signal output from the laser controlling signal generator 134 will be transmitted to the laser controller 220 through the laser controlling signal output end 135 according to the value of the laser standby signal that is output from the output end 173 of the second multiplexer 170.
  • the laser marking controller includes the input/ output ends, through which the signals can be transmitted, so as to share the signals for synchronizing the neighboring laser marking controllers with each other. Therefore, the plurality of galvanometer scanners can be driven in communication with each other.
  • one of the plurality of laser marking controllers is used in the master mode, and the other laser marking controllers are used in the slave mode to synchronize the plurality of galvanometer scanners. Otherwise, the plurality of galvanometer scanners can be used in asynchronous states by using the plurality of laser marking controllers in the slave mode. Therefore, various laser marking systems can be embodied.
  • the laser oscillator and the laser controller are used, however, a plurality of laser oscillators and a plurality of laser controllers forming respective pairs may be used.
  • the reflecting mirror is used as the beam transmission unit, however, well known beam transmission units such as a beam splitter, an f- ⁇ lens, and a telecentric f- ⁇ lens may be used.
  • the present invention can be used so as to perform a laser marking operation on a plurality of substrates by synchronizing a plurality of galvanometer scanners.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

Provided are a laser marking controller and a laser marking system including the laser marking controller. The laser marking controller outputs a scanner controlling signal that includes a scanner driving signal driving a galvanometer scanner for reflecting an incident laser beam at a desired angle and a transmission signal for synchronizing the scanner driving signal, and a laser controlling signal transmitted to a laser controller for adjusting an intensity and a frequency of the laser beam, and is used in a laser marking system that marks desired characters or diagrams on a substrate by irradiating the laser beam onto the substrate. The laser marking controller includes: an input unit receiving the transmission signal, a scanner standby signal indicating whether the scanner driving signal is generated, and a laser standby signal determining whether the laser controlling signal will be output; a first output unit outputting the transmission signal, the scanner standby signal, and the laser standby signal; a second output unit outputting the scanner controlling signal and the laser controlling signal respectively to the galvanometer scanner and the laser controller; a scanner standby signal generator generating the scanner standby signal; and a calculator calculating the scanner standby signal output from the scanner standby signal generator and the scanner standby signal input through the input unit and outputting a calculation result.

Description

Description LASER MARKING CONTROLLER AND LASER MARKING
SYSTEM INCLUDING THE SAME
Technical Field
[1] The present invention relates to a laser marking controller, and more particularly, to a laser marking controller that has a plurality of galvanometer scanners that may be connected to each other for driving them in a synchronized status. The present invention also relates to a laser marking system using a plurality of laser marking controllers that are connected to each other. Background Art
[2] A laser marking controller is used as a controlling board in a laser marking system for controlling a galvanometer scanner that deflects laser beams emitted from a laser oscillator at a desired angle, and also for controlling a laser controller that controls the laser beams emitted from the laser oscillator. A positional angle and driving speed of the galvanometer scanner are controlled by the laser marking controller so that a desired image can be marked, and the intensity and frequency of the laser beam can be controlled via the laser marking controller so that the marked image may have high brightness and clear shape.
[3] FIG. 1 is a schematic diagram showing a laser marking system including a conventional laser marking controller, and FIG. 2 is a plan view of the laser marking controller shown in FIG. 1.
[4] Referring to FIGS. 1 and 2, the laser marking system includes a computer 23 controlling the laser marking system, a laser oscillator 21 emitting laser beams 1, a laser controller 22 controlling the intensity and frequency of the laser beam 1 emitted from the laser oscillator 21, and galvanometer scanners 24 marking desired characters or figures by deflecting the laser beams 1 incident from the laser oscillator 21 at desired angles. The computer 23 includes a laser marking controller 10 for controlling the galvanometer scanners 24 and the laser controller 22.
[5] If the marking should be performed onto a plurality of substrates 2 using the laser marking system, the plurality of galvanometer scanners 24 are used and a plurality of laser marking controllers 10 are also used for controlling each of the galvanometer scanners 24. The laser beam 1 is divided by a beam division unit, for example, a beam splitter (not shown), and then, irradiated onto the plurality of substrates 2 via reflecting mirrors 25. Each of the galvanometer scanners 24 includes an X-axis galvanometer scanner and a Y-axis galvanometer scanner.
[6] The laser marking controller 10 includes a scanner driving signal generator 15, a laser controlling signal generator 16, a scanner standby signal generator 13, a transmission signal generator 14, a scanner controlling signal output end 11, and a laser controlling signal output end 12.
[7] The scanner driving signal generator 15 generates a scanner driving signal in relation to a positional angle and a driving speed of the galvanometer scanner 24. The transmission signal generator 14 generates a transmission signal for synchronizing the scanner driving signals, and the transmission signal includes a clock signal and a synchronization signal. The transmission signal and the scanner driving signal are combined to form a scanner controlling signal, and the scanner controlling signal is transmitted to the galvanometer scanner 24 through the scanner controlling signal output end 11.
[8] The scanner standby signal generator 13 generates a scanner standby signal, which has a value T when the scanner driving signal is generated and has a value '0' when the scanner driving signal is not generated due to an error, according to whether the scanner driving signal is generated or not. The laser controlling signal generator 16 generates a signal for controlling the intensity and the frequency of the laser beam 1. The scanner standby signal output from the scanner standby signal generator 13 is input into the laser controlling signal generator 16. If the scanner standby signal has the value T, the laser controlling signal output from the laser controlling signal generator 16 is transmitted to the laser controller 22 through the laser controlling signal output end 12. In addition, if the scanner standby signal has the value '0', no laser controlling signal is output from the laser controlling signal output end 12. Disclosure of Invention Technical Problem
[9] However, the conventional laser marking system shown in FIGS. 1 and 2 does not include an input/output end structure for transmitting signals between the plurality of laser marking controllers 10, and thus, the laser marking controllers 10 installed in the computer 23 operate independently without communicating with each other. Therefore, if laser marking is performed onto a plurality of substrates 2, the plurality of galvanometer scanners 24 are not synchronized. Technical Solution
[10] The present invention provides a laser marking controller having an improved structure so that laser marking can be performed onto a plurality of substrates by synchronizing a plurality of galvanometer scanners, and a laser marking system including the laser marking controller.
[11] According to an aspect of the present invention, there is provided a laser marking controller, which outputs a scanner controlling signal that includes a scanner driving signal driving a galvanometer scanner for reflecting an incident laser beam at a desired angle and a transmission signal for synchronizing the scanner driving signal, and a laser controlling signal transmitted to a laser controller for adjusting an intensity and a frequency of the laser beam, wherein the laser marking controller is used in a laser marking system that marks desired characters or diagrams on a substrate by irradiating the laser beam onto the substrate, the laser marking controller comprising: an input unit receiving the transmission signal, a scanner standby signal indicating whether the scanner driving signal is generated, and a laser standby signal determining whether the laser controlling signal will be output; a first output unit outputting the transmission signal, the scanner standby signal, and the laser standby signal; a second output unit outputting the scanner controlling signal and the laser controlling signal respectively to the galvanometer scanner and the laser controller; a scanner standby signal generator generating the scanner standby signal; and a calculator calculating the scanner standby signal output from the scanner standby signal generator and the scanner standby signal input through the input unit and outputting a calculation result.
[12] The laser marking controller may further include: a transmission signal generator generating the transmission signal; a DIP switch generating a signal for selecting one of a master mode and a slave mode; a first multiplexer selecting one of the transmission signal output from the transmission signal generator and the transmission signal input through the input unit and outputting the selected signal according to the signal of the DIP switch; and a second multiplexer selecting one of the signal output from the calculator and the laser standby signal input through the input unit and outputting the selected signal according to the signal of the DIP switch.
[13] The input unit may include a scanner standby signal input end to which the scanner standby signal is input, a laser standby signal input end to which the laser standby signal is input, and a transmission signal input end to which the transmission signal is input.
[14] If no scanner standby signal is input to the calculator from the scanner standby signal input end, a high signal may be input to a terminal of the calculator connected to the scanner standby signal input end.
[15] The first output unit may include a scanner standby signal output end outputting the scanner standby signal, a laser standby signal output end outputting the laser standby signal, and a transmission signal output end outputting the transmission signal.
[16] The second output unit may include: a scanner driving signal generator generating the scanner driving signal; a scanner controlling signal output end outputting a scanner controlling signal, which is formed by combining the scanner driving signal output from the scanner driving signal generator and the transmission signal, to the galvanometer scanner; a laser controlling signal generator generating the laser controlling signal; and a laser controlling signal output end outputting the laser controlling signal output from the laser controlling signal generator to the laser controller according to the laser standby signal.
[17] The calculator may be a logical multiplication unit that logically multiplies the scanner standby signal output from the scanner standby signal generator with the scanner standby signal input through the input unit and outputs the multiplication result.
[18] According to another aspect of the present invention, there is provided a laser marking system including: a laser oscillator emitting laser beam; a laser controller adjusting an intensity and a frequency of the laser beam output from the laser oscillator; a plurality of galvanometer scanners marking desired characters or diagrams by deflecting the laser beam emitted from the laser oscillator at desired angles; and a plurality of laser marking controller for controlling the plurality of galvanometer scanners and the laser controller, wherein the plurality of laser marking controllers are connected to each other for sharing synchronization signals so as to drive the plurality of galvanometer scanners in synchronization with each other. Advantageous Effects
[19] The laser marking controller according to an embodiment includes the input/output ends, through which the signals can be transmitted, so as to share the signals for synchronizing the neighboring laser marking controllers with each other. Therefore, the plurality of galvanometer scanners can be driven in communication with each other.
[20] In addition, according to the laser marking controller and the laser marking system including the laser marking controller of the embodiment, one of the plurality of laser marking controllers is used in the master mode, and the other laser marking controllers are used in the slave mode to synchronize the plurality of galvanometer scanners. Otherwise, the plurality of galvanometer scanners can be used in asynchronous states by using the plurality of laser marking controllers in the slave mode. Therefore, various laser marking systems can be embodied. Description of Drawings
[21] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:
[22] FIG. 1 is a schematic diagram of a laser marking system including a conventional laser marking controller;
[23] FIG. 2 is a plan view of the laser marking controller shown in FIG. 1;
[24] FIG. 3 is a schematic diagram showing a laser marking system including a laser marking controller according to an embodiment of the present invention; [25] FIG. 4 is a diagram showing flows of signals when a plurality of laser marking controllers shown in FIG. 3 are used; and [26] FIG. 5 is a plan view of the laser marking controller of FIG. 3.
Best Mode
[27] Hereinafter, a laser marking controller and a laser marking system including the laser marking controller according to embodiments of the present invention will be described with reference to accompanying drawings.
[28] FIG. 3 is a schematic diagram of a laser marking system including a laser marking controller according to an embodiment of the present invention, FIG. 4 is a diagram showing flows of signals when a plurality of laser marking controllers shown in FIG. 3 are used, and FIG. 5 is a plan view of the laser marking controller of FIG. 3.
[29] Referring to FIGS. 3 through 5, a laser marking system 200 according to an embodiment of the present invention includes a computer 230 controlling the entire marking system, a laser oscillator 210 emitting laser beams 1, a laser controller 220 controlling the intensity and frequency of the laser beam 1 emitted from the laser oscillator 210, and a plurality of galvanometer scanners 240 for marking desired characters or figures by deflecting the laser beam 1 incident from the laser oscillator 210. The laser marking system 200 includes a beam transmission unit, for example, a reflecting mirror 250, for transmitting the laser beam 1 emitted from the laser oscillator 210 to the galvanometer scanners 240. The laser beam 1 is divided by a beam division unit, for example, a beam splitter (not shown), and then irradiated onto a plurality of substrates 2. The laser oscillator 210, the laser controller 220, the galvanometer scanner 240, the reflecting mirror 250, and the beam splitter are well known in the art, and thus, detailed descriptions thereof are omitted. A plurality of laser marking controllers 100a, 100b, 100c, and lOOd are installed in the computer 230 for controlling the galvanometer scanners 240 and the laser controller 220.
[30] In order to perform the laser marking operation simultaneously onto a plurality of substrates 2 using the laser marking system 200, the plurality of galvanometer scanners 240 are used and the plurality of laser marking controllers 100a, 100b, 100c, and lOOd are also used to control the galvanometer scanners 240. The laser marking system 200 according to the present embodiment is different from the conventional laser marking system in that the plurality of laser marking controllers 100a, 100b, 100c, and lOOd are connected to each other so as to share a synchronization signal in order to drive the plurality of galvanometer scanners 240 after synchronizing them.
[31] Each of the plurality of laser marking controllers 100a, 100b, 100c, and lOOd generates a scanner controlling signal for controlling the galvanometer scanner 240 that deflects the laser beam 1 at a desired angle, and a laser controlling signal that is transmitted to the laser controller 220 to adjust the intensity and frequency of the laser beam 1. The scanner controlling signal is a signal formed by combining a scanner driving signal relating to the positional angle and the moving speed of the galvanometer scanner 240, and a transmission signal that synchronizes the scanner driving signal and performs as a medium transmitting the scanner driving signal to the laser controller 220.
[32] Each of the laser marking controllers 100a, 100b, 100c, and lOOd includes a DIP switch 110, an input unit, a first output unit, a second output unit, a scanner standby signal generator 121, a transmission signal generator 141, a calculator, a first multiplexer 160, and a second multiplexer 170.
[33] The DIP switch 110 is a switch for selecting whether each of the laser marking controllers 100a, 100b, 100c, and lOOd will be used in a master mode or a slave mode. A switch controlling signal corresponding to the selected mode between the master mode and the slave mode is transmitted to the first multiplexer 160 and the second multiplexer 170 that will be described later.
[34] The input unit receives the scanner standby signal, a laser standby signal, and the transmission signal from the neighboring laser marking controller 100a, 100b, 100c, or 10Od.
[35] The scanner standby signal indicates whether or not the scanner driving signal is generated. The scanner standby signal has a value T when the scanner driving signal that will be output to the galvanometer scanner 240 is generated, and has a value '0' when the scanner driving signal is not generated due to an error.
[36] The laser standby signal is a signal for determining whether or not the laser controlling signal will be output to the laser controller 220, and has a value T or '0'. If the laser standby signal has the value T, the laser controlling signal is output to the laser controller 220, and if the laser standby signal has the value '0', the laser controlling signal is not output to the laser controller 220.
[37] The transmission signal includes a clock signal and a synchronization signal. Since the clock signal and the synchronization signal are well known in the art, detailed descriptions thereof are omitted.
[38] The input unit includes a scanner standby signal input end 122 receiving the scanner standby signal from the neighboring laser marking controllers 100a, 100b, 100c, or 10Od, and a laser standby signal input end 132 receiving the laser standby signal, and a transmission signal input end 142 receiving the transmission signal.
[39] The first output unit outputs the scanner standby signal, the laser standby signal, and the transmission signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od. The first output unit includes a scanner standby signal output end 123 outputting the scanner standby signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od, a laser standby signal output end 133 outputting the laser standby signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od, and a transmission signal output end 143 outputting the transmission signal to the neighboring laser marking controller 100a, 100b, 100c, or 10Od.
[40] The second output unit outputs the scanner controlling signal and the laser controlling signal respectively to the galvanometer scanner 240 and the laser controller 220, and includes a scanner driving signal generator 124, a scanner controlling signal output end 125, a laser controlling signal generator 134, and a laser controlling signal output end 135.
[41] The scanner driving signal generator 124 generates a scanner driving signal relating to the position angle and the driving speed of the galvanometer scanner 240. The scanner controlling signal output end 125 is a terminal outputting the scanner controlling signal, which is formed by combining the transmission signal and the scanner driving signal output from the scanner driving signal generator 124, to the galvanometer scanner 240. The laser controlling signal generator 134 generates a signal for controlling the intensity and frequency of the laser beam 1. The laser controlling signal output end 135 is a terminal outputting the laser controlling signal output from the laser controlling signal generator 134 to the laser controller 220.
[42] The scanner standby signal generator 121 generates the scanner standby signal that indicates whether or not the scanner driving signal is generated, and the transmission signal generator 141 generates the transmission signal for synchronizing the scanner driving signal.
[43] The calculator calculates the scanner standby signal output from the scanner standby signal generator 121 and the scanner standby signal receiving from the neighboring laser marking controllers 100a to lOOd through the scanner standby signal input end 122. The calculator according to the present embodiment is a logical multiplication unit 150 that logically multiplies the two scanner standby signals and outputs the multiplication result. A first input end 151 of the logical multiplication unit 150 is connected to the scanner standby signal input end 122, and a second input end 152 of the logical multiplication unit 150 is connected to the scanner standby signal generator 121. Therefore, the logical multiplication unit 150 outputs a signal having a value T only when both signals from the scanner standby signal input end 122 and the scanner standby signal generator 121 have values T. On the other hand, if no scanner standby signal is input through the first input end 151 of the logical multiplication unit 150, a high signal is input to the first input end 151 of the logical multiplication unit 150, that is, the first input end 151 of the logical multiplication unit 150 is in a normal high state.
[44] The first multiplexer 160 outputs the transmission signal output from the transmission signal generator 141 when the DIP switch 110 is set in the master mode, and outputs the transmission signal input from the neighboring laser marking controller 100a to lOOd through the transmission signal input end 142 when the DIP switch 110 is set in the slave mode. The first input end 161 of the first multiplexer 160 is connected to the transmission signal generator 141, and a second input end 162 of the first multiplexer 160 is connected to the transmission signal input end 142.
[45] The second multiplexer 170 outputs the signal input through the logical multiplication unit 150 when the DIP switch 110 is set in the master mode, and outputs the laser standby signal input from the neighboring laser marking controllers 100a to lOOd through the laser standby signal input end 132 when the DIP switch 110 is set in the slave mode. A first input end 171 of the second multiplexer 170 is connected to the output end 153 of the logical multiplication unit 150, and a second input end 172 of the second multiplexer 170 is connected to the laser standby signal input end 132.
[46] Hereinafter, a flow of a signal among a plurality of laser marking controllers 100a to lOOd that are connected to each other is as follows.
[47] Referring to FIGS. 3 through 5, the scanner standby signal generator 121 of a final slave laser marking controller lOOd (represented as 'slave 3' in FIG. 4) outputs the scanner standby signal indicating whether the scanner driving signal is generated. The scanner standby signal output from the scanner standby signal generator 121 and the scanner standby signal input through the scanner standby signal input end 122 are logically multiplied, and then, a signal resulting from the logical multiplication is output through the output end 153 of the logical multiplication unit 150. The signal output from the output end 153 of the logical multiplication unit 150 is transmitted to the scanner standby signal input end 122 of a superior slave laser marking controller 100c (represented as 'slave 2' in FIG. 4) through the scanner standby signal output end 123. As represented by a first signal flow 181 in FIG. 4, the scanner standby signal is transmitted from the final slave laser marking controller lOOd to a master laser marking controller 100a (represented as 'master' in FIG. 4).
[48] The scanner standby signal is input into the logical multiplication unit 150 of the master laser marking controller 100a, and the signal of the output end 153 of the logical multiplication unit 150 is output through the second multiplexer 170 connected to the output end 153. The signal output from the output end 173 of the second multiplexer 170 is transmitted to the laser standby signal input end 132 of the subordinate slave laser marking controller 100b (represented as 'slave 1' in FIG. 4) through the laser standby signal output end 133 that is connected to the output end 173. In each of the slave laser marking controllers 100b, 100c, and 10Od, the laser standby signal input through the laser standby signal input end 132 passes through the second multiplexer 170 and is transmitted to the laser standby signal input end 132 of the neighboring subordinate slave laser marking controller 100c or lOOd through the laser standby signal output end 133.
[49] As described above, the scanner standby signal transmitted to the master laser marking controller 100a from the final slave laser marking controller lOOd is converted into the laser standby signal in the master laser marking controller 100a. That is, the emission of the laser beam 1 from the laser oscillator 210 is determined according to whether the scanner driving signal is generated. As represented by a second signal flow 182 in FIG. 4, the laser standby signal is transmitted from the master laser marking controller 100a to the final slave laser marking controller 10Od.
[50] On the other hand, the transmission signal generated by the transmission signal generator 141 of the master laser marking controller 100a is output through the first multiplexer 160. The signal of the output end 163 of the first multiplexer 160 is transmitted to the transmission signal input end 142 of the subordinate slave laser marking controller 100b through the transmission signal output end 143 that is connected to the output end 163. In each of the slave laser marking controllers 100b, 100c, and 10Od, the transmission signal input through the transmission signal input end 142 passes through the first multiplexer 160, and is transmitted to the transmission input end 142 of the subordinate laser marking controller 100b, 100c, or lOOd through the transmission signal output end 143. As represented by a third signal flow 183 in FIG. 4, the transmission signal is transmitted from the master laser marking controller 100a to the final slave laser marking controller 10Od.
[51] The plurality of laser marking controllers 100a to lOOd share the transmission signal, and thus, the plurality of galvanometer scanners 240 respectively connected to the plurality of laser marking controllers 100a, 100b, 100c, and lOOd may be driven after being synchronized by the same transmission signal.
[52] On the other hand, the output end 163 of the first multiplexer 160 is also connected to the scanner driving signal generator 124, and thus, the transmission signal output from the output end 163 of the first multiplexer 160 and the scanner driving signal output from the scanner driving signal generator 124 are combined and transmitted to the galvanometer scanner 240 through the scanner controlling signal output end 125. In addition, the output end 173 of the second multiplexer 170 is also connected to the laser controlling signal generator 134, and thus, it is determined whether the laser controlling signal output from the laser controlling signal generator 134 will be transmitted to the laser controller 220 through the laser controlling signal output end 135 according to the value of the laser standby signal that is output from the output end 173 of the second multiplexer 170.
[53] The laser marking controller according to the above embodiment includes the input/ output ends, through which the signals can be transmitted, so as to share the signals for synchronizing the neighboring laser marking controllers with each other. Therefore, the plurality of galvanometer scanners can be driven in communication with each other.
[54] In addition, according to the laser marking controller and the laser marking system including the laser marking controller of the above embodiment, one of the plurality of laser marking controllers is used in the master mode, and the other laser marking controllers are used in the slave mode to synchronize the plurality of galvanometer scanners. Otherwise, the plurality of galvanometer scanners can be used in asynchronous states by using the plurality of laser marking controllers in the slave mode. Therefore, various laser marking systems can be embodied.
[55] In the embodiment of the present invention, the laser oscillator and the laser controller are used, however, a plurality of laser oscillators and a plurality of laser controllers forming respective pairs may be used.
[56] In the embodiment of the present invention, the reflecting mirror is used as the beam transmission unit, however, well known beam transmission units such as a beam splitter, an f- θ lens, and a telecentric f- θ lens may be used.
[57] The present invention can be used so as to perform a laser marking operation on a plurality of substrates by synchronizing a plurality of galvanometer scanners.
[58] While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.

Claims

Claims
[1] A laser marking controller, which outputs a scanner controlling signal that includes a scanner driving signal driving a galvanometer scanner for reflecting an incident laser beam at a desired angle and a transmission signal for synchronizing the scanner driving signal, and a laser controlling signal transmitted to a laser controller for adjusting an intensity and a frequency of the laser beam, wherein the laser marking controller is used in a laser marking system that marks desired characters or diagrams on a substrate by irradiating the laser beam onto the substrate, the laser marking controller comprising: an input unit receiving the transmission signal, a scanner standby signal indicating whether the scanner driving signal is generated, and a laser standby signal determining whether the laser controlling signal will be output; a first output unit outputting the transmission signal, the scanner standby signal, and the laser standby signal; a second output unit outputting the scanner controlling signal and the laser controlling signal respectively to the galvanometer scanner and the laser controller; a scanner standby signal generator generating the scanner standby signal; and a calculator calculating the scanner standby signal output from the scanner standby signal generator and the scanner standby signal input through the input unit and outputting a calculation result.
[2] The laser marking controller of claim 1, further comprising: a transmission signal generator generating the transmission signal; a DIP switch generating a signal for selecting one of a master mode and a slave mode; a first multiplexer selecting one of the transmission signal output from the transmission signal generator and the transmission signal input through the input unit and outputting the selected signal according to the signal of the DIP switch; and a second multiplexer selecting one of the signal output from the calculator and the laser standby signal input through the input unit and outputting the selected signal according to the signal of the DIP switch.
[3] The laser marking controller according to claim 1 or claim 2, wherein the input unit includes a scanner standby signal input end to which the scanner standby signal is input, a laser standby signal input end to which the laser standby signal is input, and a transmission signal input end to which the transmission signal is input.
[4] The laser marking controller of claim 3, wherein if no scanner standby signal is input to the calculator from the scanner standby signal input end, a high signal is input to a terminal of the calculator connected to the scanner standby signal input end.
[5] The laser marking controller of claim 1 or claim 2, wherein the first output unit includes a scanner standby signal output end outputting the scanner standby signal, a laser standby signal output end outputting the laser standby signal, and a transmission signal output end outputting the transmission signal.
[6] The laser marking controller of claim 1 or claim 2, wherein the second output unit comprises: a scanner driving signal generator generating the scanner driving signal; a scanner controlling signal output end outputting a scanner controlling signal, which is formed by combining the scanner driving signal output from the scanner driving signal generator and the transmission signal, to the galvanometer scanner; a laser controlling signal generator generating the laser controlling signal; and a laser controlling signal output end outputting the laser controlling signal output from the laser controlling signal generator to the laser controller according to the laser standby signal.
[7] The laser marking controller of claim 1 or claim 2, wherein the calculator is a logical multiplication unit that logically multiplies the scanner standby signal output from the scanner standby signal generator with the scanner standby signal input through the input unit and outputs the multiplication result.
[8] A laser marking system comprising: a laser oscillator emitting laser beam; a laser controller adjusting an intensity and a frequency of the laser beam output from the laser oscillator; a plurality of galvanometer scanners marking desired characters or diagrams by deflecting the laser beam emitted from the laser oscillator at desired angles; and a plurality of laser marking controller according to one of claims 1 through 7 for controlling the plurality of galvanometer scanners and the laser controller, wherein the plurality of laser marking controllers are connected to each other for sharing synchronization signals so as to drive the plurality of galvanometer scanners in synchronization with each other.
PCT/KR2008/002191 2008-04-18 2008-04-18 Laser marking controller and laser marking system including the same WO2009128577A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3004620A1 (en) * 2013-04-22 2014-10-24 Speciales Gillardeau MOLLUSC MARKING DEVICE AND PACKAGING CHAIN COMPRISING SUCH A DEVICE
CN108176922A (en) * 2017-11-24 2018-06-19 武汉凌云光电科技有限责任公司 A kind of laser output system and welding method welded simultaneously for intensive multiple spot
TWI803593B (en) * 2019-03-15 2023-06-01 興誠科技股份有限公司 Continuous marking laser marking system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07214348A (en) * 1994-02-09 1995-08-15 Nippon Steel Corp Method and device for laser beam marking on steel plate
JP2001121277A (en) * 1999-10-22 2001-05-08 Sunx Ltd Laser marker
JP2005238272A (en) * 2004-02-25 2005-09-08 Sunx Ltd Laser marking apparatus
JP2005278258A (en) * 2004-03-23 2005-10-06 Yaskawa Electric Corp High-precision servo controller, laser marker device, high- precision servo control method, saw-toothed wave signal generating circuit, and saw-toothed wave signal generating method
KR100817822B1 (en) * 2006-10-19 2008-03-31 주식회사 이오테크닉스 Controller for laser marking and laser marking system using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07214348A (en) * 1994-02-09 1995-08-15 Nippon Steel Corp Method and device for laser beam marking on steel plate
JP2001121277A (en) * 1999-10-22 2001-05-08 Sunx Ltd Laser marker
JP2005238272A (en) * 2004-02-25 2005-09-08 Sunx Ltd Laser marking apparatus
JP2005278258A (en) * 2004-03-23 2005-10-06 Yaskawa Electric Corp High-precision servo controller, laser marker device, high- precision servo control method, saw-toothed wave signal generating circuit, and saw-toothed wave signal generating method
KR100817822B1 (en) * 2006-10-19 2008-03-31 주식회사 이오테크닉스 Controller for laser marking and laser marking system using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3004620A1 (en) * 2013-04-22 2014-10-24 Speciales Gillardeau MOLLUSC MARKING DEVICE AND PACKAGING CHAIN COMPRISING SUCH A DEVICE
EP2796049A1 (en) * 2013-04-22 2014-10-29 Speciales Gillardeau Method and device for marking molluscs and packaging line including such a device
CN108176922A (en) * 2017-11-24 2018-06-19 武汉凌云光电科技有限责任公司 A kind of laser output system and welding method welded simultaneously for intensive multiple spot
TWI803593B (en) * 2019-03-15 2023-06-01 興誠科技股份有限公司 Continuous marking laser marking system

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