Optical shutter in-place detection device and laser system

Abstract

The utility model relates to an optical shutter in-place detection device and a laser system. The device comprises an optical shutter assembly, a first indicating circuit and a second indicating circuit. The optical shutter assembly comprises an optical shutter rotating shaft, a first blocking piece and a second blocking piece. One end of the first blocking piece is connected to the optical gate rotating shaft, and the other end extends in the first direction away from the optical gate rotating shaft. One end of the second baffle plate is connected to the optical gate rotating shaft, and the other end extends along a second direction away from the optical gate rotating shaft; when the optical shutter assembly receives a laser light emitting signal and is started, the optical shutter rotating shaft rotates to drive the first blocking piece to be switched from the first position to the second position, so that the laser light emitting circuit is switched on, the second blocking piece is driven to be switched from the third position to the fourth position, the first indicating circuit is switched on, and the second indicating circuit is switched off. By adopting the method, whether the optical shutter assembly is in place or not can be detected in time, so that the occurrence of abnormal light emission of the laser is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser, in particular to a shutter in-place detection device and a laser system. BACKGROUND

[0002] With the development of laser technology, a shutter assembly is generally needed in a laser to control the turn-off of a laser light emitting circuit, so as to realize the light emitting control of the laser.

[0003] In a conventional laser system, whether the shutter assembly is normally in place cannot be determined in time and accurately. If the light emitting control is performed when the shutter assembly is not normally in place, the abnormal light emitting of the laser may occur. CONTENT OF THE INVENTION

[0004] Therefore, it is necessary to provide a shutter in-place detection device and a laser system capable of reducing the occurrence of abnormal light emitting of the laser.

[0005] In a first aspect, a shutter in-place detection device is provided, comprising a shutter assembly, a first indication circuit and a second indication circuit, the shutter assembly comprising a shutter rotating shaft, a first baffle and a second baffle;

[0006] One end of the first baffle is connected to the shutter rotating shaft, and the other end extends in a first direction away from the shutter rotating shaft; one end of the second baffle is connected to the shutter rotating shaft, and the other end extends in a second direction away from the shutter rotating shaft;

[0007] When the shutter assembly receives a laser light emitting signal to start, the shutter rotating shaft rotates, driving the first baffle to switch from a first position to a second position, so that the laser light emitting circuit is turned on, and driving the second baffle to switch from a third position to a fourth position, so that the first indication circuit is turned on and the second indication circuit is turned off.

[0008] In some embodiments, the first indication circuit comprises a first photoelectric switch and a first indication assembly, and the second indication circuit comprises a second photoelectric switch and a second indication assembly; wherein,

[0009] When the second baffle switches from the third position to the fourth position, the second baffle is disconnected from the second photoelectric switch and connected to the first photoelectric switch.

[0010] In some embodiments, the first photoelectric switch and the second photoelectric switch are slot-shaped photoelectric switches.

[0011] When the second baffle switches from the third position to the fourth position, the second baffle is separated from the groove of the second photoelectric switch and inserted into the groove of the first photoelectric switch.

[0012] In some embodiments, the second shutter piece comprises a shutter piece body and a connecting plug, the connecting plug is arranged at an end of the second shutter piece away from the rotation axis of the shutter, and is bent towards the rotation axis of the shutter.

[0013] When the second shutter piece switches from the third position to the fourth position, the connecting plug is unlocked from the groove of the second photoelectric switch and is locked with the groove of the first photoelectric switch.

[0014] In some embodiments, the first indicating assembly and / or the second indicating assembly comprises a light emitting device.

[0015] In some embodiments, the first photoelectric switch comprises a light emitting diode and a photo-sensitive triode; wherein,

[0016] the anode of the light emitting diode is connected to a power supply, the cathode of the light emitting diode is grounded, the emitter of the photo-sensitive triode is connected to the first indicating assembly, the collector of the photo-sensitive triode is connected to the power supply, and the base of the photo-sensitive triode is configured to be connected to and / or disconnected from the second shutter piece.

[0017] In some embodiments, the first indicating assembly comprises a triode element, an LED device, and a capacitor element; wherein,

[0018] the base of the triode element is connected to the emitter of the photo-sensitive triode;

[0019] the collector of the triode element is connected to the anode of the LED device, the first end of the capacitor element, and the power supply;

[0020] the emitter of the triode element is connected to the cathode of the LED device, the second end of the capacitor element, and the ground.

[0021] In some embodiments, the first indicating circuit further comprises a resistance element; wherein,

[0022] the first end of the resistance element is connected to the emitter of the photo-sensitive triode and the base of the triode element, and the second end of the resistance element is connected to the emitter of the triode element and the ground.

[0023] In some embodiments, the angle between the first direction and the second direction is 135°, and accordingly, the longitudinal axis of the first photoelectric switch and the longitudinal axis of the second photoelectric switch intersect at the rotation axis of the shutter, and the angle between the two is 45°.

[0024] In a second aspect, a laser system is provided, comprising a laser light emitting circuit, a master control circuit, and the shutter-in-place detection device according to any one of the first aspect.

[0025] The laser light emitting circuit is connected to the shutter assembly of the shutter-in-place detection device, and the master control circuit is connected to the shutter assembly, the first indicating circuit, and the second indicating circuit of the shutter-in-place detection device.

[0026] The aforementioned optical shutter positioning detection device and laser system, by adding a second baffle to the optical shutter rotation shaft of the optical shutter assembly, and setting a first indicator circuit and a second indicator circuit that can be controlled to turn on or off through the second baffle, when the optical shutter assembly receives a laser emission signal and is powered on, the optical shutter rotation shaft rotates, driving the first baffle to switch from the first position to the second position, and simultaneously driving the second baffle to switch from the third position to the fourth position. Thus, while controlling the laser emission circuit to be on, the first indicator circuit is also controlled to be on. If the first indicator circuit is regarded as the circuit indicating that the optical shutter assembly is in position, then, through the above-mentioned device, when the laser emission circuit is on, the circuit indicating that the optical shutter assembly is in position will also output a corresponding signal, thereby enabling timely, simple and accurate detection of whether the optical shutter assembly is in position, thereby reducing the occurrence of abnormal laser emission. Attached Figure Description

[0027] Figure 1 These are schematic diagrams of the laser system in some embodiments;

[0028] Figure 2 This is a schematic diagram of the structure of the shutter assembly in some embodiments;

[0029] Figure 3 This is a schematic diagram of the structure of the shutter assembly in some other embodiments;

[0030] Figure 4 This is a schematic diagram of the structure of the first indicator circuit in some application examples. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] In some embodiments, reference Figure 1 As shown, Figure 1 The diagram shows a schematic of the laser system in some embodiments. The optical shutter positioning detection device 10 provided in this application can be applied to the laser system 1, wherein the laser system 1 may include:

[0033] Laser output circuit 500, main control circuit 400, and shutter position detection device 10;

[0034] The laser light output circuit 500 is connected to the shutter assembly 100 of the shutter position detection device 10, and the main control circuit 400 is connected to the shutter assembly 100, as well as the first indicator circuit 200 and the second indicator circuit 300 of the shutter position detection device 10.

[0035] Next, first, the shutter-in-position detection device 10 will be described in detail, with continued reference to Figure 1 As shown in FIG. 1, the shutter-in-position detection device 10 can include a shutter assembly 100, a first indication circuit 200, and a second indication circuit 300. The shutter assembly 100 can include at least a shutter rotating shaft 101, a first shutter blade 102, and a second shutter blade 103.

[0036] One end of the first shutter blade 102 can be connected to the shutter rotating shaft 101, and the other end can extend along a first direction A away from the shutter rotating shaft 101. One end of the second shutter blade 103 can be connected to the shutter rotating shaft 101, and the other end can extend along a second direction B away from the shutter rotating shaft 101. The first direction A and the second direction B can have a certain angle therebetween. When the shutter assembly 100 receives a laser light emitting signal to start, the shutter rotating shaft 101 rotates, driving the first shutter blade 102 to switch from a first position to a second position, so that the laser light emitting circuit is turned on, and driving the second shutter blade 103 to switch from a third position to a fourth position, so that the first indication circuit 200 is turned on and the second indication circuit 300 is turned off.

[0037] More specifically, reference can be made to Figure 2 As shown in FIG. 2, Figure 2 FIG. 3 shows a structural schematic diagram of the shutter assembly in some embodiments.

[0038] In some embodiments, one end of the first shutter blade 102 can be fixedly connected to the shutter rotating shaft 101, and the other end can extend outward along the first direction A away from the shutter rotating shaft 101, perpendicular to or at a certain inclined angle along the shutter rotating shaft 101. When the shutter rotating shaft 101 rotates clockwise a or counterclockwise b about its longitudinal axis, the first shutter blade 102 disposed on the shutter rotating shaft 101 also rotates clockwise a or counterclockwise b about the longitudinal axis of the shutter rotating shaft 101 correspondingly, and no relative movement occurs between the shutter rotating shaft 101 and the first shutter blade 102.

[0039] One end of the second shutter blade 103 can be fixedly connected to the shutter rotating shaft 101, and the other end can extend outward along the second direction B away from the shutter rotating shaft 101, perpendicular to or at a certain inclined angle along the shutter rotating shaft 101. When the shutter rotating shaft 101 rotates clockwise a or counterclockwise b about its longitudinal axis, the second shutter blade 103 disposed on the shutter rotating shaft 101 also rotates clockwise a or counterclockwise b about the longitudinal axis of the shutter rotating shaft 101 correspondingly, and no relative movement occurs between the shutter rotating shaft 101 and the second shutter blade 103.

[0040] In some embodiments, in order to more reasonably layout and prevent the interference of the light shutter in-place detection device 10 to the laser light emitting circuit 500, the first baffle 102 and the second baffle 103 can have a certain angle along the first direction A away from the light shutter rotation axis 101 and the second direction B away from the light shutter rotation axis 101. The angle can be adjusted according to actual conditions, for example, the angle can be designed according to the setting position of the light shutter in-place detection device 10 in the laser system, the selection of the light shutter assembly 100, etc.

[0041] More specifically, when the light shutter assembly 100 receives a laser light emitting signal and starts to power on, the light shutter rotation axis 101 rotates, driving the first baffle 102 to switch from the first position to the second position, so that the laser light emitting circuit 500 is turned on at the same time, driving the second baffle 103 to switch from the third position to the fourth position, so that the first indicating circuit 200 is turned on and the second indicating circuit 300 is turned off. The first indicating circuit 200 can be a circuit for prompting that the light shutter assembly 100 has been in place, and the second indicating circuit 300 can be a circuit for prompting that the light shutter assembly 100 has been disconnected.

[0042] The above-mentioned light shutter in-place detection device 10 adds a second baffle 103 to the light shutter rotation axis 101 of the light shutter assembly 100, and sets a first indicating circuit 200 and a second indicating circuit that can be turned on or turned off by the second baffle 103. When the light shutter assembly 100 receives a laser light emitting signal and starts to power on, the light shutter rotation axis 101 rotates, driving the first baffle 102 to switch from the first position to the second position at the same time, driving the second baffle 103 to switch from the third position to the fourth position, thereby controlling the first indicating circuit 200 to be turned on while controlling the laser light emitting circuit 500 to be turned on. If the first indicating circuit 200 is regarded as a circuit for indicating that the light shutter assembly 100 has been in place, then through the above-mentioned device, when the laser light emitting circuit 500 is turned on, the circuit for indicating that the light shutter assembly 100 has been in place will also output a corresponding signal, so that whether the light shutter assembly 100 is in place can be detected in time, simply and accurately, thereby reducing the occurrence of abnormal laser light emitting.

[0043] In some embodiments, reference can be continued to Figure 2 As shown, the first indicating circuit 200 can include a first photoelectric switch 201 and a first indicating assembly 202, and the second indicating circuit 300 can include a second photoelectric switch 301 and a second indicating assembly 302; when the second baffle 103 switches from the third position to the fourth position, the second baffle 103 is disconnected from the second photoelectric switch 301 and switched to be connected to the first photoelectric switch 201.

[0044] Exemplarily, the first photoelectric switch 201 and the second photoelectric switch 301 can adopt a slot-shaped photoelectric switch, when the second shutter 103 is switched from the third position to the fourth position, the second shutter 103 is separated from the groove of the second photoelectric switch 301 and inserted into the groove of the first photoelectric switch 201. Adopting the slot-shaped photoelectric switch can improve the contact convenience between the shutter and the photoelectric switch, improve the fitting degree between the shutter and the photoelectric switch, and contain more different types of shutters.

[0045] More specifically, reference can be made to Figure 2 As shown, the second shutter 103 can include a shutter body 1031 and a connecting plug 1032, the connecting plug 1032 can be arranged at one end of the second shutter 103 away from the optical shutter rotating shaft 101 and bent towards the optical shutter rotating shaft 101; when the second shutter 103 is switched from the third position to the fourth position, the connecting plug 1032 is unlocked from the groove of the second photoelectric switch 301 and falls into the groove of the first photoelectric switch 201 with the rotation of the second shutter 103, so as to be switched to the state of being locked with the groove of the first photoelectric switch 201. By arranging the connecting plug 1032 at the part of the second shutter 103 connected with the photoelectric switch of the indication circuit, the sensitivity of the contact can be improved.

[0046] In some embodiments, the structure of the first shutter 102 can adopt the structure of the shutter of the conventional optical shutter assembly 100, and any conventional or improved shutter structure that can control the conduction or shutdown of the laser light emitting circuit 500 through the rotation of the optical shutter rotating shaft 101 can be used, which is not limited herein.

[0047] In some embodiments, the first indication assembly 202 and / or the second indication assembly 302 can include one or more light emitting devices. The light emitting devices are used for indication or prompting, exemplarily, the light emitting devices can be LED (Light Emitting Diode) devices, the number, size, indication content or color of the light emitting devices of the first indication assembly 202 and / or the second indication assembly 302 can be different, so as to more clearly distinguish the indication information.

[0048] In some embodiments, reference can be made to Figure 3 As shown, Figure 3Fig. 6 shows a structural schematic diagram of the optical shutter assembly in some other embodiments, wherein the angle between the first direction A of the first shutter 102 and the second direction B of the second shutter 103 is 135°, the first photoelectric switch 201 and the second photoelectric switch 301 can be arranged on the circuit board 401 of the master control circuit, the longitudinal axis of the first photoelectric switch 201 and the longitudinal axis of the second photoelectric switch 301 intersect at the optical shutter rotating shaft 101, and the angle between the two is 45°. In this way, with the rotation of the optical shutter rotating shaft 101, the first shutter 102 rotates 45° to make the light-emitting circuit conductive, and at the same time, the second shutter 103 also rotates 45°, so as to adaptively switch from the state of connecting the second photoelectric switch 301 to the state of connecting the first photoelectric switch 201.

[0049] In this embodiment, it is an example improved on the basis of the conventional optical shutter assembly 100 which is started by rotating 45°, which can better adapt to this type of optical shutter assembly 100, but for other types of optical shutter assembly 100, the setting angle of the two photoelectric switches can be adaptively adjusted.

[0050] In some embodiments, referring to Fig. 7, Figure 4 as shown, Figure 4 Fig. 8 shows a structural schematic diagram of the first indication circuit 200 in some application examples, wherein the first photoelectric switch 201 can include an infrared light-emitting diode IR LED and a photosensitive triode PT; wherein,

[0051] The anode of the infrared light-emitting diode IR LED is connected to the power supply VCC, the cathode of the infrared light-emitting diode IR LED is grounded GRD, the emitter E of the photosensitive triode PT is connected to the first indication assembly 202, the collector C of the photosensitive triode is connected to the power supply VCC, and the base B of the photosensitive triode is configured to be connected and / or disconnected with the second shutter 103.

[0052] The above-mentioned embodiments only list one structure of the photoelectric switch and its corresponding connection relationship, and the connection relationship of the photoelectric switch structure can be adaptively adjusted. The specific structure of the second indication circuit 300 can also refer to the structure description of the first indication circuit 200.

[0053] In some embodiments, the first indication assembly 202 includes a triode element Q2, an LED device LED1, and a capacitor element C1; wherein the base B of the triode element Q2 is connected to the emitter E of the photosensitive triode PT; the collector C of the triode element Q2 is connected to the anode of the LED device LED1, the first end of the capacitor element C1, and the power supply VCC; the emitter E of the triode element Q2 is connected to the cathode of the LED device LED1, the second end of the capacitor element C1, and the ground GRD. Wherein, Figure 4R2, R3, R4, R5 in the formula are current limiting, which can improve the safety of the circuit, and C1 is a filter capacitor, which can improve the stability of the circuit.

[0054] In the embodiment, the indication assembly with simple configuration and stable structure is shown, and the indication assembly of the embodiment can reduce the cost, and other encapsulated indication assemblies with other structures can also be used in other embodiments. The specific structure of the second indication assembly 302 can also refer to the structure description of the first indication assembly 202.

[0055] More specifically, when the shutter assembly 100 is started, one of the slot-shaped photoelectric switches (the second photoelectric switch 301) has no shutter in the middle, the triode element Q2' is in a conducting state, at this time, the LED1' lamp is not lit, and the signal output at OUT1' of the circuit is a low-level signal (wherein Q2', LED1' and OUT1' are not shown in the figure, and can refer to the position configuration of Q2, LED1 and OUT1 in Figure 4 vice versa, when the other photoelectric switch (the first photoelectric switch 201) has a shutter in the middle, the corresponding triode element Q2 is not conducting, and the LED1 lamp is in a lit state through VCC power supply, the signal output at OUT1 is a high-level signal, and the signals output at OUT1 and OUT1' are transmitted to the main control circuit. Then, the main control circuit can determine whether the shutter assembly 100 is working normally or normally positioned by judging the high and low level signals of OUT1 and OUT1'.

[0056] In some embodiments, the first indication assembly 202 further comprises a resistor element R1; wherein the first end of the resistor element R1 is connected to the emitter E of the photo triode PT and the base B of the triode element Q2, and the second end of the resistor element R1 is connected to the emitter E of the triode element Q2 and grounded GND. The resistor element R1 can be used as a pull-down resistor to stabilize the level and improve the anti-interference performance of the circuit.

[0057] Next, the laser system 1 including the shutter positioning detection device 10 will be described in detail in combination with the above-described embodiment of the shutter positioning detection device 10.

[0058] Continuing to refer to Figure 1 shown, wherein the laser light output circuit 500 is connected to the shutter assembly 100 of the shutter positioning detection device 10, and the main control circuit 400 is connected to the shutter assembly 100, and the first indication circuit 200 and the second indication circuit 300 of the shutter positioning detection device 10.

[0059] Specifically, when the master control circuit 400 sends a control signal CON to start the light emission, the shutter assembly 100 receives the control signal CON and is powered on, the shutter rotating shaft 101 completes a clockwise rotation a by a certain angle, and the first blocking piece 102 and the second blocking piece 103 on the shutter rotating shaft 101 are also rotated, so that the first blocking piece 102 is rotated to a position where the laser light emission circuit 500 is turned on, and the second blocking piece 103 is inserted into the groove of the slot-shaped photoelectric switch of one of the indication circuits (i.e., the first photoelectric switch 201 of the first indication circuit 200), so that the LED lamp of the indication circuit is lit, the LED lamp of the other indication circuit is turned off, and the indication circuit can also output a low-level signal to the master control circuit 400, to inform the master control circuit 400 that the shutter assembly 100 has been positioned.

[0060] On the other hand, when the master control circuit 400 sends a control signal CON to cut off the light emission, the shutter assembly 100 receives the control signal CON, and controls the shutter rotating shaft 101 to complete a counterclockwise rotation b by a certain angle, and the first blocking piece 102 and the second blocking piece 103 on the shutter rotating shaft 101 are also rotated, so that the first blocking piece 102 is rotated to a position where the laser light emission circuit 500 is turned off, and the second blocking piece 103 is inserted into the groove of the slot-shaped photoelectric switch of one of the indication circuits (i.e., the second photoelectric switch 301 of the second indication circuit 300), so that the LED lamp of the indication circuit is lit, the LED lamp of the other indication circuit is turned off, and the indication circuit can also output a high-level signal to the master control circuit 400, to inform the master control circuit 400 that the shutter assembly 100 has been cut off.

[0061] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0062] In addition, the term "and / or" herein merely describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the characters herein generally represent that the front and rear associated objects are in an "or" relationship.

[0063] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A shutter-in-place detection device, characterized by, The application relates to a laser indication device, which comprises a shutter assembly, a first indication circuit and a second indication circuit. One end of the first baffle is connected to the shutter rotating shaft, and the other end extends in a first direction away from the shutter rotating shaft; one end of the second baffle is connected to the shutter rotating shaft, and the other end extends in a second direction away from the shutter rotating shaft. When the shutter assembly receives a laser light emission signal to start, the shutter rotating shaft rotates, drives the first baffle to switch from a first position to a second position, and drives the second baffle to switch from a third position to a fourth position, so that the first indication circuit is turned on and the second indication circuit is turned off.

2. The apparatus of claim 1, wherein, The first indication circuit comprises a first photoelectric switch and a first indication assembly, and the second indication circuit comprises a second photoelectric switch and a second indication assembly. When the second baffle switches from the third position to the fourth position, the second baffle is disconnected from the second photoelectric switch and connected to the first photoelectric switch.

3. The apparatus of claim 2, wherein, The first photoelectric switch and the second photoelectric switch are groove-shaped photoelectric switches. When the second baffle switches from the third position to the fourth position, the second baffle is separated from the groove of the second photoelectric switch and inserted into the groove of the first photoelectric switch.

4. The apparatus of claim 3, wherein, The second baffle comprises a baffle body and a connecting plug, the connecting plug is arranged at one end of the second baffle away from the shutter rotating shaft and is bent towards the shutter rotating shaft. When the second baffle switches from the third position to the fourth position, the connecting plug is unlocked from the groove of the second photoelectric switch and locked to the groove of the first photoelectric switch.

5. The apparatus of claim 2, wherein, The first indication assembly and / or the second indication assembly comprises a light-emitting device.

6. The apparatus of claim 2, wherein, The first photoelectric switch comprises a light-emitting diode and a photosensitive triode. The anode of the light-emitting diode is connected to a power supply, the cathode of the light-emitting diode is grounded, the emitter of the photosensitive triode is connected to the first indication assembly, the collector of the photosensitive triode is connected to a power supply, and the base of the photosensitive triode is configured to be connected to and / or disconnected from the second baffle.

7. The apparatus of claim 6, wherein, The first indication assembly comprises a triode element, an LED device and a capacitor element. The base of the triode element is connected to the emitter of the photosensitive triode. The collector of the triode element is connected to the anode of the LED device, the first end of the capacitor element and a power supply. The emitter of the triode element is connected to the cathode of the LED device, the second end of the capacitor element and a ground.

8. The apparatus of claim 7, wherein, The first indication circuit further comprises a resistance element. The first end of the resistance element is connected to the emitter of the photosensitive triode and the base of the triode element, and the second end of the resistance element is connected to the emitter of the triode element and a ground.

9. The apparatus of claim 2, wherein, The angle between the first direction and the second direction is 135°, accordingly, the longitudinal axis of the first photoelectric switch and the longitudinal axis of the second photoelectric switch intersect at the shutter rotation axis, and the angle between them is 45°.

10. A laser system, characterized by, The laser light emitting circuit, the main control circuit, and the shutter in-place detection device according to any one of claims 1 to 9; The laser light emitting circuit is connected to the shutter assembly of the shutter in-place detection device, the main control circuit is connected to the shutter assembly, and the first indication circuit and the second indication circuit of the shutter in-place detection device.

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