CN210640480U - Frequency conversion crystal point changing device and laser - Google Patents
Frequency conversion crystal point changing device and laser Download PDFInfo
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- CN210640480U CN210640480U CN201921228765.5U CN201921228765U CN210640480U CN 210640480 U CN210640480 U CN 210640480U CN 201921228765 U CN201921228765 U CN 201921228765U CN 210640480 U CN210640480 U CN 210640480U
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Abstract
The embodiment of the utility model provides a frequency conversion crystal trades some devices and laser instrument belongs to laser technical field. The first sliding assembly of the point changing device comprises a base and a support, wherein the base is connected with the support in a sliding manner; the second sliding assembly comprises a first tray, a second tray, a first tray fixing seat and a second tray fixing seat, the first tray fixing seat and the second tray fixing seat are connected with the support in a sliding mode, and the sliding direction of the first tray fixing seat and the sliding direction of the second tray fixing seat are perpendicular to the sliding direction of the support; the first tray is connected with the first tray fixing seat, and the second tray is connected with the second tray fixing seat. The first frequency conversion crystal and the second frequency conversion crystal can move transversely and longitudinally in a two-dimensional space, and the utilization rate of the first frequency conversion crystal and the second frequency conversion crystal is improved.
Description
Technical Field
The embodiment of the utility model provides a relate to laser technical field, especially relate to a frequency conversion crystal trades some devices and laser instrument.
Background
The development progress of optical materials promotes the further development of lasers, and frequency conversion crystal materials are indispensable optical materials in the lasers. Due to the influence of factors such as the heating temperature of the frequency conversion crystal during working, the position of the optical path and the like, the frequency conversion crystal is extremely easy to be damaged, so that the laser cannot be ensured to run for a long time.
In the prior art, on one hand, a plurality of special optical lenses are inserted into the optical path of the point changing device, so that the optical path is changed, and the purpose of point changing is achieved; on the other hand, the function of the frequency conversion crystal seat in the point changing device is improved and perfected, and the platform of the laser is driven to move through the rotation of the motor, so that the point changing purpose is achieved through the position movement.
However, on one hand, by inserting the special optical lens into the optical path, the switching can be performed only by using lenses with different refractive indexes, so that the number of switching points of the switching device is limited; on the other hand, the movement of the frequency conversion crystal is limited, the degree of freedom is limited, and the number of the switching points of the point switching device is limited.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a frequency conversion crystal trades some devices and laser instrument to the limited problem of quantity of trading the point of trading the some device among the solution prior art.
In order to solve the technical problem, the utility model discloses a realize like this:
in a first aspect, an embodiment of the present invention provides a frequency conversion crystal point changing device, where the point changing device includes a first sliding assembly and a second sliding assembly;
the first sliding assembly comprises a base and a bracket, and the base is connected with the bracket in a sliding manner;
the second sliding assembly comprises a first tray, a second tray, a first tray fixing seat and a second tray fixing seat, the first tray fixing seat and the second tray fixing seat are respectively connected with the support in a sliding mode, and the sliding direction of the first tray fixing seat and the sliding direction of the second tray fixing seat are perpendicular to the sliding direction of the support;
the first tray is connected with the first tray fixing seat, and the second tray is connected with the second tray fixing seat.
Optionally, the stent comprises a first stent and a second stent;
the first support and the second support are both connected with the base in a sliding mode, and the sliding directions of the first support and the second support are consistent;
the first tray fixing seat is connected with the first support in a sliding mode, the second tray fixing seat is connected with the second support in a sliding mode, the sliding direction of the first tray fixing seat is perpendicular to the sliding direction of the first support, and the sliding direction of the second tray fixing seat is perpendicular to the sliding direction of the second support.
Optionally, the point changing device further includes a first driving assembly, a second driving assembly, a third driving assembly, and a fourth driving assembly;
the base with first support passes through first drive assembly sliding connection, the base with the second support passes through second drive assembly sliding connection, first tray fixing base with first support passes through third drive assembly sliding connection, second tray fixing base with the second support passes through fourth drive assembly sliding connection.
Optionally, the first tray is hinged to the first tray fixing seat, and the second tray is hinged to the second tray fixing seat.
Optionally, the point changing device further comprises a first positioning screw and a second positioning screw;
the first tray is provided with a first positioning groove around the hinge center, and the first positioning screw penetrates through the first positioning groove and is fixedly connected with the first tray fixing seat;
the second tray is provided with a second positioning groove around the hinge center, and the second positioning screw penetrates through the second positioning groove and is fixedly connected with the second tray fixing seat.
Optionally, the point changing device further comprises a first adjusting plate and a second adjusting plate;
the first adjusting plate is fixedly connected with the first tray and hinged with the first tray fixing seat, and a first handle is arranged on the first adjusting plate;
the second regulating plate is fixedly connected with the second tray, the second regulating plate is hinged to the second tray fixing seat, and a second handle is arranged on the second regulating plate.
Optionally, the point changing device further comprises a first limiting assembly, a second limiting assembly, a third limiting assembly and a fourth limiting assembly;
the first limiting assembly is arranged at the limit position where the first support slides relative to the base;
the second limiting assembly is arranged at the limit position where the second bracket slides relative to the base;
the third limiting assembly is arranged at the limit position of the first tray fixing seat sliding relative to the first bracket;
the fourth limiting assembly is arranged at the limit position of the second tray fixing seat sliding relative to the second support.
In a second aspect, an embodiment of the present invention provides a laser, where the laser includes the point changing device of any of the above embodiments and a frequency conversion crystal disposed in the first tray and the second tray.
Optionally, the laser further includes a control unit, and the control unit is configured to control the point changing device to change the point of the frequency conversion crystal.
Optionally, the laser is an ultraviolet laser or a green laser.
In an embodiment of the present invention, the spot changing device includes a first sliding assembly and a second sliding assembly; the first sliding assembly comprises a base and a support, and the base is connected with the support in a sliding manner; the second sliding assembly comprises a first tray, a second tray, a first tray fixing seat and a second tray fixing seat, the first tray fixing seat and the second tray fixing seat are connected with the support in a sliding mode, and the sliding direction of the first tray fixing seat and the sliding direction of the second tray fixing seat are perpendicular to the sliding direction of the support; the first tray is connected with the first tray fixing seat, and the second tray is connected with the second tray fixing seat. Like this, through along with the slip of support on the base and first tray fixing base, second tray fixing base slides on the support for fixed second frequency conversion crystal can transversely remove simultaneously in two-dimensional space on fixed first frequency conversion crystal on the first tray and the second tray, and make fixed second frequency conversion crystal can vertically independently remove in two-dimensional space on fixed first frequency conversion crystal on the first tray and the second tray, improve the utilization ratio of first frequency conversion crystal and second frequency conversion crystal.
Drawings
Fig. 1 is a schematic structural diagram of a first view angle of a frequency conversion crystal point changing device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second viewing angle of a frequency conversion crystal point changing device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third viewing angle of a frequency conversion crystal point changing device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first view angle of another frequency conversion crystal point changing device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second view angle of another frequency conversion crystal point changing device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first tray provided in an embodiment of the present invention;
fig. 7 is a schematic diagram of a first position of a frequency conversion crystal in a laser cavity according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a second position of a frequency conversion crystal in a laser cavity according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a third position of a frequency conversion crystal in a laser cavity according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a fourth position of a frequency conversion crystal in a laser cavity according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a fifth position of a frequency conversion crystal in a laser cavity according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention provides a frequency conversion crystal switching device and a laser, which will be described in detail below by exemplifying several specific embodiments.
Example one
Referring to fig. 1, which shows a schematic structural diagram of a first view angle of a frequency conversion crystal point changing device according to an embodiment of the present invention, as shown in fig. 1, the device includes a first sliding assembly 1 and a second sliding assembly 2; the first sliding assembly 1 comprises a base 11 and a bracket 12, wherein the base 11 is connected with the bracket 12 in a sliding manner; the second sliding assembly 2 comprises a first tray 21, a first tray fixing seat 22, a second tray 23 and a second tray fixing seat 24, the first tray fixing seat 22 and the second tray fixing seat 24 are respectively connected with the support 12 in a sliding mode, and the sliding direction of the first tray fixing seat 22 and the sliding direction of the second tray fixing seat 24 are perpendicular to the sliding direction of the support 12; the first tray 21 is connected to the first tray holder 22, and the second tray 23 is connected to the second tray holder 24.
As shown in fig. 2, the base 11 included in the first sliding assembly 1 may include two first plate members 111 and two second plate members 112, and the two first plate members 111 may have connection holes or connection grooves, so that the spot changing device may be conveniently fixed in the cavity of the laser. The two ends of each first plate 111 of the two first plates 111 are connected with the same-facing surfaces of the two second plates 112, the two first plates 111 are spaced by a first distance, and the two second plates 112 are spaced by a second distance, so that sufficient installation space is provided for the connection of other components and the base 11. Two second plates 112 can be for the plate that is equipped with the slide like the plate that length direction was equipped with the slide, and the width foundation of slide is confirmed at the thickness of the gliding part in two second plates 112, the embodiment of the utility model provides a do not limit to this. As shown in fig. 3, the bracket 12 included in the first sliding assembly 11 may include two fixed sliding rail plates 121, a fixed plate 123 and a top sliding rail plate 122, the inner sides of the two fixed sliding rail plates 121 are respectively provided with a slide way, one end of each fixed sliding rail plate 121 is connected to one surface of the top sliding rail plate 122, and the other end of each fixed sliding rail plate 121 is respectively connected to the two second plate members 112 in a sliding manner, so that the two fixed sliding rail plates 121 can slide in the slide ways of the two second plate members 112 and can slide along the length direction of the two second plate members 112. The fixing plate 123 may be fixed in the middle of the sliding rail top plate 122, and the middle of the fixing plate 123 is also provided with a sliding way, which may provide sliding support for the first tray fixing seat 22 and the second tray fixing seat 24.
The first tray fixing seat 22 and the second tray fixing seat 24 included in the second sliding assembly 2 are respectively connected with the bracket 12 in a sliding manner. It should be noted that two sliding parts may be disposed on the two sliding rail fixing plates 121 of the bracket 12, so that the two sliding parts may respectively slide along the length directions of the two sliding rail fixing plates 121, the first tray fixing seat 22 and the second tray fixing seat 24 are respectively and fixedly connected to the two sliding parts, and then the first tray fixing seat 22 and the second tray fixing seat 24 may slide along the length directions of the two sliding rail fixing plates 121. It should be noted that the sliding direction (the Y direction shown in fig. 1) of the first tray fixing seat 22 and the sliding direction (the Y direction shown in fig. 1) of the second tray fixing seat 24 are both perpendicular to the sliding direction (the X direction shown in fig. 1) of the support 12, so that the first tray fixing seat 22 and the second tray fixing seat 24 can be ensured to move in a two-dimensional space.
Secondly, first tray 21 and first tray fixing base 22 can weld or splice, and first tray 2121 and first tray fixing base 22 also can link together through connecting pieces such as bolt or articulated elements, and second tray 23 and second tray fixing base 24 can weld or splice, and second tray 23 and second tray fixing base 24 also can link together through connecting pieces such as bolt or articulated elements. It should be further noted that the first tray 21 may be bonded or welded with a first frequency conversion crystal, and the first tray 21 may be bonded or welded with a second frequency conversion crystal. Because first tray fixing seat 22, second tray fixing seat 24 all with support 12 sliding connection, base 11 and support 12 sliding connection, consequently, along with the slip of support 12 on base 11 and first tray fixing seat 22, second tray fixing seat 24 slide on support 12, can make first tray 21 and second tray 23 can transversely and vertically independently move in two-dimensional space. For example, as shown in fig. 2, after the first tray 21 and the second tray 23 can move to the designated positions in the X direction, the first frequency conversion crystal on the first tray 21 moves a third distance in the Y direction, the second frequency conversion crystal on the second tray 23 moves a fourth distance in the Y direction, the third distance and the fourth distance can be determined according to actual requirements, and any working point position on the first frequency conversion crystal can be combined with any working point position on the second frequency conversion crystal, so that the number of the frequency conversion points of the frequency conversion device is further increased, and the utilization rate of the first frequency conversion crystal and the second frequency conversion crystal is improved. The point location is a point which can be irradiated by laser defined on the first frequency conversion crystal and the second frequency conversion crystal, the working point location is a point location which is irradiated by the laser when the point location of the frequency conversion crystal is controlled or the point is changed, the phase point is a position coordinate corresponding to the point location or the laser spot in a plane coordinate system, and the phase point can comprise an initial phase point, a target phase point and other phase points. The initial phase point is the initial working point on the cross section of the frequency conversion crystal. It should be noted that the initial phase point is a coordinate point of an initial working point defined on the frequency conversion crystal, and the target phase point is a position coordinate of the laser spot in the plane coordinate system. The following point location, the working point location and the phase point that relate to are all defined according to the above description, the embodiment of the utility model discloses the no longer repeated description is given here.
It should be noted that the spot changing device may include the first heating block 3 and the first crystal mount. First crystal base and first tray 21 fixed connection, first heating block 3 is fixed between first crystal base and first tray 21, and first crystal base middle part can be opened has the recess, and first frequency conversion crystal is fixed in this recess, and first heating block 3 can be TEC (thermal energy Converter) heating block, mainly used sets up corresponding operating temperature for first frequency conversion crystal, makes the conversion power of first frequency conversion crystal reach the maximize output. The device can also include second heating block 4 and second crystal base, and the connected mode of each part is unanimous in the connected mode of each part and the first frequency conversion crystal, and the effect that second heating block 4 and first heating block 3 is unanimous, the embodiment of the utility model discloses no longer describe repeatedly. It should be noted that, the frequency multiple of first frequency conversion crystal and second frequency conversion crystal can be the same, also can be inequality, and specific frequency multiple is confirmed according to specific demand, the embodiment of the utility model provides a contrast does not limit.
Compared with the prior art, the point changing device has the following advantages:
the point changing device of the utility model comprises a first sliding component 1 and a second sliding component 2; the first sliding assembly 1 comprises a base 11 and a bracket 12, wherein the base 11 is connected with the bracket 12 in a sliding manner; the second sliding assembly 2 comprises a first tray 21, a second tray 23, a first tray fixing seat 22 and a second tray fixing seat 24, the first tray fixing seat 22 and the second tray fixing seat 24 are connected with the support 12 in a sliding mode, and the sliding direction of the first tray fixing seat 22 and the sliding direction of the second tray fixing seat 24 are perpendicular to the sliding direction of the support 12; the first tray 21 is connected to the first tray holder 22, and the second tray 23 is connected to the second tray holder 24. Like this, through along with the slip of support 12 on base 11 and first tray fixing base 22, second tray fixing base 24 slides on support 12, can make the second frequency conversion crystal of installation on the first frequency conversion crystal of installation on first tray 21 and the second tray 23 all can transversely remove simultaneously in two-dimensional space, and make the second frequency conversion crystal of fixing on the first frequency conversion crystal of fixing on first tray 21 and the second tray 23 vertically independently remove in two-dimensional space, and the device can accurate control, the removal precision is higher, make first frequency conversion crystal and second frequency conversion crystal can carry out effectual frequency conversion work, improve the utilization ratio of first frequency conversion crystal and second frequency conversion crystal, increase the life of first frequency conversion crystal and second frequency conversion crystal simultaneously, and then guarantee that the laser instrument can long-term operation.
Optionally, the bracket 12 includes a first bracket 124 and a second bracket 125; the first support 124 and the second support 125 are both connected with the base 11 in a sliding manner, and the sliding directions of the first support 124 and the second support 125 are consistent; the first tray fixing seat 22 is slidably connected with the first support 124, the second tray fixing seat 24 is slidably connected with the second support 125, the sliding direction of the first tray fixing seat 22 is perpendicular to the sliding direction of the first support 124, and the sliding direction of the second tray fixing seat 24 is perpendicular to the sliding direction of the second support 125.
As shown in fig. 4, the first bracket 124 and the second bracket 125 are disposed in parallel on both sides of the base 11. The base 11 further includes a third plate 113, and the third plate 113 is connected to the middle of the two first plates 111 and is spaced apart from the two second plates 112 by the same distance. Both sides of third plate 113 all are equipped with the slide, and the width of slide is confirmed according to first support 124 and the thickness of second support 125 sliding part in the slide, the embodiment of the utility model provides a do not limit to this. As shown in fig. 5, the first bracket 124 includes two first rail fixing plates 1241 and a first rail top plate 1242, and the two first rail fixing plates 1241 are parallel. The inner sides of the two first slide rail fixed plates 1241 are provided with slideways, one end of each first slide rail fixed plate 1241 is connected with one surface of the first slide rail top plate 1242, and the other end of each first slide rail fixed plate 1241 is respectively connected with one of the two second plates 112 and the third plate 113 in a sliding manner, so that the two first slide rail fixed plates 1241 can slide in the slideways of the second plates 112 and the third plate 113. Second support 125 includes that two second slide rails decide board 1251 and a second slide rail roof 1252, and the second slide rail decides board 1251, second slide rail roof 1252 and the above-mentioned first slide rail decide board 1241, the connected mode of first slide rail roof 1242 unanimously, the embodiment of the utility model provides a do not describe repeatedly to this.
It should be further noted that the bracket 12 includes a first bracket 124 and a second bracket 125, and a second distance is spaced between the first bracket 124 and the second bracket 125, and the second distance is determined according to the installation space of the first bracket 124 and the second bracket 125 and the shape and size of the first bracket 124 and the second bracket 125, which is not limited by the embodiment of the present invention. The first support 124 and the second support 125 can slide on the base 11 independently, and the sliding directions of the first support 124 and the second support 125 are the same. As shown in fig. 5, the first bracket 124 and the second bracket 125 are both provided with sliding grooves, the first tray fixing seat 22 can slide in the sliding groove of the first bracket 124, the second tray fixing seat 24 can slide in the sliding groove of the second bracket 125, the first tray fixing seat 22 and the second tray fixing seat 24 can slide independently, and the sliding direction of the first tray fixing seat 22 is perpendicular to the sliding direction of the first bracket 124, and the sliding direction of the second tray fixing seat 24 is perpendicular to the sliding direction of the second bracket 125. Thus, since the first support 124 and the second support 125 can slide independently, the first tray fixing seat 22 and the second tray fixing seat 24 can slide independently, and the sliding direction of the first tray fixing seat 22 is perpendicular to the sliding direction of the first support 124, and the sliding direction of the second tray fixing seat 24 is perpendicular to the sliding direction of the second support 125, by sliding the first support 124 on the base 11, sliding the first tray fixing seat 22 on the first support 124, sliding the second support 125 on the base 11, and sliding the second tray fixing seat 24 on the second support 125, the first frequency conversion crystal mounted on the first tray 21 and the second frequency conversion crystal mounted on the second tray 23 can both move independently in the transverse direction and the longitudinal direction of the two-dimensional space, and the first frequency conversion crystal mounted on the first tray 21 and the second frequency conversion crystal mounted on the second tray 23 can move independently in the X direction and the Y direction, mutual noninterference for first frequency conversion crystal and second frequency conversion crystal all can carry out independent switch point work in two different directions, improve first frequency conversion crystal and second frequency conversion crystal's utilization ratio, increase first frequency conversion crystal and second frequency conversion crystal's life simultaneously, and then guarantee that the laser instrument can long-term operation.
Optionally, as shown in fig. 4, the dot changing device further includes a first driving assembly 7, a second driving assembly 8, a third driving assembly 9, and a fourth driving assembly 10. The base 11 and the first support 124 are slidably connected through the first driving assembly 7, the base 11 and the second support 125 are slidably connected through the second driving assembly 8, the first tray fixing seat 22 and the first support 124 are slidably connected through the third driving assembly 9, and the second tray fixing seat 24 and the second support 125 are slidably connected through the fourth driving assembly 10.
It should be noted that, first drive assembly 7, second drive assembly 8, third drive assembly 9 and fourth drive assembly 10 all can be the parts that can drive parts and take place to remove such as rack and pinion transmission structure, motor lead screw transmission structure, and specific drive form is confirmed according to installation space and drive demand, the embodiment of the utility model provides a do not limit to this. Exemplarily, if the embodiment of the present invention adopts the motor screw transmission structure as the driving assembly of the present invention, the first driving assembly 7 may include the first motor 71 and the first screw 72, and the first screw 72 is matched with the internal thread structure of the first motor 71, so that the first motor 71 can move along the axis direction of the first screw 72. Two ends of the first lead screw 72 are respectively fixed on two protrusions at the middle part of the two first plates 111, and the direction of the axis of the first lead screw 72 is consistent with the sliding direction of the first bracket 124. Two sides of the first motor 71 are respectively connected to two first sliding fixed plates 1241 included in the first bracket 124, so that the first bracket 124 can slide with the base 11 along with the movement of the first motor 71 on the first lead screw 72. The second drive assembly 8 may include a second motor 81 and a second lead screw 82. Each part that second drive assembly 8 includes is unanimous with the connected mode and the effect of each part that first drive assembly includes, the embodiment of the utility model discloses no longer describe to this.
The third drive assembly 9 may include a third motor 91 and a third lead screw 92. One end of the third motor 91 is located in the slide way of one first slide rail fixed plate 1241, and the other end of the third motor 91 is located in the slide way of the other first slide rail fixed plate 1241. The third lead screw 92 is matched with a thread structure inside the third motor 91, so that the third motor 91 can move along the axial direction of the third lead screw 92, one end of the third lead screw 92 is fixed on the first slide rail top plate 1242, the other end of the third lead screw 92 is fixed on the first motor 71, and the axial direction of the third lead screw 92 is consistent with the sliding direction of the third motor 91. One end of the third motor 91 close to the first tray 21 is connected to the first tray fixing seat 22, so that the first tray fixing seat 22 slides with the first bracket 124 along with the movement of the third motor 91 on the third lead screw 92. Fourth drive assembly 10 can include fourth motor 101 and fourth lead screw 102, and the connected mode and the effect of each part that fourth drive assembly 10 includes and each part that third drive assembly includes are unanimous, the embodiment of the utility model discloses no longer describe to this.
Optionally, the first tray 21 is hinged to the first tray fixing seat 22, and the second tray 23 is hinged to the second tray fixing seat 24.
It should be noted that, the first tray 21 and the first tray fixing seat 22 may be hinged by a first rotating shaft, the second tray 23 and the second tray fixing seat 24 may be hinged by a second rotating shaft, so that the first tray 21 may swing by a certain angle around the first rotating shaft, the second tray 23 may swing by a certain angle around the second rotating shaft, and further, since the first frequency conversion crystal is fixedly connected with the first tray 21, and the second frequency conversion crystal is fixedly connected with the second tray 23, the pitch angle of the first frequency conversion crystal may also change along with the swing of the first tray 21, and similarly, the pitch angle of the second frequency conversion crystal may also change along with the swing of the second tray 23, so that, when the heating temperature of the first heating block 3 is outside the preset temperature range, the pitch angle of the first frequency conversion crystal may be adjusted by adjusting the swing of the first tray 21, so as to compensate the working temperature of the first frequency conversion crystal, the conversion efficiency is improved, and similarly, when the heating temperature of the second heating block 4 is out of the preset temperature range, the pitch angle of the second frequency conversion crystal can be adjusted by adjusting the swing of the second tray 23, so that the power of the second frequency conversion crystal can be maximally output. It should be noted that the cutting angle of the frequency conversion crystal and the matching temperature required by each phase point on the frequency conversion crystal have a corresponding relationship, for example, the matching temperature corresponding to the first phase point on the frequency conversion crystal may be a first temperature range, the matching temperature corresponding to the second phase point on the frequency conversion crystal may be a second temperature range, and the matching temperature corresponding to the third phase point on the frequency conversion crystal may be a third temperature range, so that the crystal has a bearable maximum temperature and a minimum temperature, and the preset temperature range may be a temperature range from the maximum temperature to the minimum temperature. When each phase point matches the corresponding heating temperature, the matched heating temperature may be too high or too low due to the cutting angle deviation of the crystal, the assembly error of the heating block, etc., and too high may affect the service life of the frequency conversion crystal, and too low may reduce the output power of the laser. Under the two conditions, the long-term stable operation of the laser is not facilitated. When the heating temperature of a certain phase point in the first frequency conversion crystal or the heating temperature of a certain phase point in the second frequency conversion crystal is out of the preset temperature range, the laser is not suitable to reach the maximum output power through the heating temperature. And because the phase matching of the frequency conversion crystal can comprise two matching modes of angle phase matching and temperature phase matching, when the heating temperature is out of the preset temperature range, the laser can reach the maximum output power through the angle phase matching.
It should be further noted that, after the pitch angle of the first frequency conversion crystal or the pitch angle of the second frequency conversion crystal is adjusted, a schematic diagram of point changing of the first frequency conversion crystal and the second frequency conversion crystal is shown in fig. 3, after the first frequency conversion crystal and the second frequency conversion crystal can move to a specified position in the X direction, the first frequency conversion crystal moves a fifth distance in the Y direction, the second frequency conversion crystal moves a sixth distance in the Y direction, the fifth distance and the sixth distance can be determined according to actual requirements, any working point location on the first frequency conversion crystal can be combined with any working point location on the second frequency conversion crystal, the number of point changing of the point changing device can also be increased, and the utilization rate of the first frequency conversion crystal and the second frequency conversion crystal can be improved.
Optionally, fig. 6 is a schematic structural diagram of the first tray 21 provided in the embodiment of the present invention, and as shown in fig. 6, the point changing device further includes a first positioning screw 211 and a second positioning screw; the first tray 21 is provided with a first positioning groove 212 around the hinge center, and the first positioning screw 211 penetrates through the first positioning groove 212 to be fixedly connected with the first tray fixing seat 22; the second tray 23 is provided with a second positioning groove around the hinge center, and the second positioning screw passes through the second positioning groove and is fixedly connected with the second tray fixing seat 24.
It should be noted that the first positioning groove 212 is an arc-shaped groove, and the radian of the first positioning groove 212 is consistent with the swing radian of the first tray 21, so that the first positioning groove 212 can adapt to the swing of the first tray 21, and it should be noted that the first positioning screw 211 penetrates through the first positioning groove 212 and is fixedly connected with the first tray fixing seat 22, so that when the first tray 21 swings to a certain angle, the first positioning screw 211 can be screwed down, and further the first tray 21 can be fixed at the position, so that the swing angle of the first tray 21 is prevented from changing in the operation process of the point changing device, and the pitch angle of the first frequency conversion crystal fixedly connected with the first tray 21 is changed, thereby affecting the precision of the point changing device. In addition, the second constant head tank also is the arc wall, and the radian of second constant head tank is unanimous with the swing radian of second tray 23, and the second constant head tank can adapt to the swing of second tray 23, and the effect that second set screw and first set screw 211 played is unanimous, the embodiment of the utility model discloses the embodiment will not be repeated herein again.
Optionally, referring to fig. 1, the spot changing device further comprises a first adjusting plate 5 and a second adjusting plate 6; first regulating plate 5 with first tray 21 fixed connection, first regulating plate 5 with first tray fixing base 22 is articulated, wherein, be provided with first handle on the first regulating plate 5, second regulating plate 6 with second tray 23 fixed connection, second regulating plate 6 with second tray fixing base 24 is articulated, wherein, be provided with the second handle on the second regulating plate.
The first adjusting plate 5 and the second adjusting plate 6 may be cylinders or circular truncated cones. In a possible implementation manner, a first handle may be arranged on the arc surface of the first adjusting plate 5, and a second handle may be arranged on the arc surface of the second adjusting plate 6. Because first regulating plate 5 and first tray 21 fixed connection, first regulating plate 5 is articulated with first tray fixing base 22, second regulating plate 6 and second tray 23 fixed connection, second regulating plate 6 is articulated with second tray fixing base 24, therefore, adjust first handle and can make first regulating plate 5 take place to rotate, and then make first tray 21 take place to swing, adjust the second handle and can make second regulating plate 6 take place to rotate, and then make second tray 23 take place to swing, thus, because first handle provides the point of application of force for the swing of first tray 21, the second handle provides the point of application of force for second tray 23, make things convenient for the swing of first tray 21 and second tray 23 more. Like this, when first tray 21 swung to a certain angle, can screw up first set screw 211, and then make first tray 21 fix in this position, prevent at the in-process of this device operation of trading, first tray 21 wobbling angle changes, makes the angle of pitch of the first frequency conversion crystal with first tray 21 fixed connection change, and then influences the precision of this device of trading. In addition, the second constant head tank also is the arc wall, and the radian of second constant head tank is unanimous with the swing radian of second tray 23, and the second constant head tank can adapt to the swing of second tray 23, and the effect that second set screw and first set screw 211 played is unanimous, the embodiment of the utility model discloses the embodiment will not be repeated herein again. In another possible implementation mode, scales can be arranged on the arc surface of the first adjusting plate 5 and the arc surface of the second adjusting plate 6, and can be angle scales, so that when the first adjusting plate 5 and the second adjusting plate 6 are manually adjusted, corresponding angles can be accurately rotated, the pitch angle of the first frequency conversion crystal and the pitch angle of the second frequency conversion crystal are accurately adjusted, and the precision of the point changing device is improved.
Optionally, the point changing device further comprises a first limiting assembly, a second limiting assembly, a third limiting assembly and a fourth limiting assembly; the first limit component is arranged at the limit position of the first bracket 124 sliding relative to the base 11; the second limiting component is arranged at the extreme position of the second bracket 125 sliding relative to the base 11; the third limiting component is arranged at the limit position where the first tray fixing seat 22 slides relative to the first bracket 124; the fourth limiting component is disposed at the limit position where the second tray fixing seat 24 slides relative to the second support 125.
It should be noted that the first limit assembly may include a first limit switch and a second limit switch, the first limit switch and the second limit switch are respectively installed at two limit positions where the first bracket 124 slides on the base 11, and the first limit switch and the second limit switch may be installed on any one of the two second plates 112 included in the base 11. Like this, when first support 124 slided extreme position, will touch first limit switch's shell fragment or second limit switch's shell fragment, and then feedback stop signal, in time stop first support 124 and further slide to prevent that first drive assembly from exceeding the range and removing, damaging first drive assembly, and then improve the life of device of changing a little. The second limit component can include third limit switch and fourth limit switch, and the mounting means and the function of third limit switch, fourth limit switch and the mounting means and the function of first limit switch, second limit switch are similar, the embodiment of the utility model provides an it is no longer repeated to this.
In addition, the third limit component can include fifth limit switch and sixth limit switch, the fourth limit component can include seventh limit switch and eighth limit switch, wherein, fifth limit switch and sixth limit switch can install respectively on first tray fixing base 22 and two gliding extreme positions of first support 124, thus, when first tray fixing base 22 slides extreme position, will touch fifth limit switch's shell fragment or sixth limit switch's shell fragment, and then feedback stop signal, in time stop first tray fixing base 22 further slides, in order to avoid laser irradiation at the edge of crystal, influence the life of crystal, and then improve the life of trade point device. Seventh limit switch, eighth limit switch's mounting means and function and fifth limit switch, sixth limit switch's mounting means and function are similar, the embodiment of the utility model provides a no longer describe to this.
The utility model also provides a laser instrument, this laser instrument include the device of trading in any above-mentioned embodiment with set up first tray 21 with frequency conversion crystal in the second tray 23.
It should be noted that, can set up first frequency conversion crystal a in first tray 21, can set up second frequency conversion crystal B in second tray 23, wherein, first frequency conversion crystal a and second frequency conversion crystal B all can be frequency doubling frequency conversion crystal or frequency tripling frequency conversion crystal, or first frequency conversion crystal a and second frequency conversion crystal also can be other frequency doubling frequency conversion crystal, and the frequency doubling number is confirmed according to the actual operation demand, the embodiment of the utility model does not limit this.
Optionally, the laser further includes a control unit, and the control unit is configured to control the point changing device to change the point of the frequency conversion crystal.
It should be noted that the control unit may be a plurality of micro control chips or microprocessors, and further may control the point changing device to change the point of the frequency conversion crystal.
Optionally, the laser is an ultraviolet laser or a green laser.
In the case of a green laser, only one frequency doubling crystal is required. When the laser instrument was ultraviolet laser instrument, can practical a plurality of frequency doubling crystals, the embodiment of the utility model provides a do not limit to this. Furthermore, the utility model discloses in used laser instrument not only be applicable to single-pumping laser instrument but also be applicable to laser instruments such as double-pumping, more be applicable to multiple cavate structure, wherein, the position of first frequency conversion crystal A and second frequency conversion crystal B in the cavity is shown as figure 7 to 11, and the position of first frequency conversion crystal A and second frequency conversion crystal B and the concrete structure of laser instrument require according to practical application to confirm, the embodiment of the utility model provides a do not limit to this. In the figure, the ld (laser diode) denoted by C is a laser diode and provides a light source for a laser. As shown in fig. 7, the laser further includes a collimating focusing system D, a beam splitter E, a laser crystal F, a front cavity mirror G, a focusing mirror H, a switch M, a rear cavity mirror N, and the like. The chamber shape structure can include V-arrangement chamber or Z chamber, and is exemplary, and fig. 7 is the outer doubling of frequency of V chamber, and fig. 8 is the interior doubling of frequency of double-pump Z die cavity, and fig. 9 is the inner doubling of frequency of double-pump Z intracavity, and fig. 10 is the inner doubling of frequency of V die cavity, and fig. 11 is the outer doubling of frequency of double-pump Z die cavity, and concrete cavity structure is confirmed according to the actual work demand, the embodiment of the utility model does not limit this.
Compared with the prior art, trade some device and laser utensil have following advantage:
because first tray 21 with first tray fixing base 22 is articulated, second tray 23 with second tray fixing base 24 is articulated, like this, when the heating temperature of first heating block 3 is outside predetermineeing the temperature range, can adjust the angle of pitch of first frequency conversion crystal through the swing of adjusting first tray 21, make the power of first frequency conversion crystal reach the maximize output, and in the same way, when the heating temperature of second heating block 4 is outside predetermineeing the temperature range, can adjust the angle of pitch of second frequency conversion crystal through the swing of adjusting second tray 23, make the power of second frequency conversion crystal reach the maximize output. In addition, the point changing device further comprises a first limiting component arranged at the limit position of the first support 124 sliding relative to the base 11, a second limiting component arranged at the limit position of the second support 125 sliding relative to the base 11, a third limiting component arranged at the limit position of the first tray fixing seat 22 sliding relative to the first support 124, a fourth limiting component arranged at the limit position of the second tray fixing seat 24 sliding relative to the second support 125, and when the first support 124, the second support 125, the first tray fixing seat 22 or the second tray fixing seat 24 reaches the limit position, the first limiting component, the second limiting component or the third limiting component will be touched, and a corresponding stop signal is fed back, and the first support 124 and/or the second support 125 is stopped to further slide in time, so as to prevent the first driving component, the second driving component, the third driving component and the fourth driving component from moving beyond the range, damage first drive assembly, and then improve the life who trades the some device, and then guarantee that the laser instrument can long-term operation.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A frequency conversion crystal point changing device is characterized by comprising a first sliding assembly and a second sliding assembly;
the first sliding assembly comprises a base and a bracket, and the base is connected with the bracket in a sliding manner;
the second sliding assembly comprises a first tray, a second tray, a first tray fixing seat and a second tray fixing seat, the first tray fixing seat and the second tray fixing seat are respectively connected with the support in a sliding mode, and the sliding direction of the first tray fixing seat and the sliding direction of the second tray fixing seat are perpendicular to the sliding direction of the support;
the first tray is connected with the first tray fixing seat, and the second tray is connected with the second tray fixing seat.
2. The spot changing apparatus according to claim 1, wherein the bracket comprises a first bracket and a second bracket;
the first support and the second support are both connected with the base in a sliding mode, and the sliding directions of the first support and the second support are consistent;
the first tray fixing seat is connected with the first support in a sliding mode, the second tray fixing seat is connected with the second support in a sliding mode, the sliding direction of the first tray fixing seat is perpendicular to the sliding direction of the first support, and the sliding direction of the second tray fixing seat is perpendicular to the sliding direction of the second support.
3. The point changing device according to claim 2, further comprising a first drive assembly, a second drive assembly, a third drive assembly, a fourth drive assembly;
the base with first support passes through first drive assembly sliding connection, the base with the second support passes through second drive assembly sliding connection, first tray fixing base with first support passes through third drive assembly sliding connection, second tray fixing base with the second support passes through fourth drive assembly sliding connection.
4. A spot changing device according to claim 1, wherein the first tray is hinged to the first tray holder and the second tray is hinged to the second tray holder.
5. The spot changing apparatus according to claim 4, further comprising a first set screw and a second set screw;
the first tray is provided with a first positioning groove around the hinge center, and the first positioning screw penetrates through the first positioning groove and is fixedly connected with the first tray fixing seat;
the second tray is provided with a second positioning groove around the hinge center, and the second positioning screw penetrates through the second positioning groove and is fixedly connected with the second tray fixing seat.
6. The spot changing apparatus according to claim 1, further comprising a first adjusting plate and a second adjusting plate;
the first adjusting plate is fixedly connected with the first tray and hinged with the first tray fixing seat, and a first handle is arranged on the first adjusting plate;
the second regulating plate is fixedly connected with the second tray, the second regulating plate is hinged to the second tray fixing seat, and a second handle is arranged on the second regulating plate.
7. The point changing device of claim 2, further comprising a first limit assembly, a second limit assembly, a third limit assembly, and a fourth limit assembly;
the first limiting assembly is arranged at the limit position where the first support slides relative to the base;
the second limiting assembly is arranged at the limit position where the second bracket slides relative to the base;
the third limiting assembly is arranged at the limit position of the first tray fixing seat sliding relative to the first bracket;
the fourth limiting assembly is arranged at the limit position of the second tray fixing seat sliding relative to the second support.
8. A laser comprising the spot changing apparatus of any one of claims 1 to 7 and frequency conversion crystals disposed in the first and second trays.
9. The laser of claim 8, further comprising a control unit configured to control the frequency conversion crystal to perform a switching operation by the switching device.
10. The laser of claim 8, wherein the laser is an ultraviolet laser or a green laser.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921228765.5U CN210640480U (en) | 2019-07-31 | 2019-07-31 | Frequency conversion crystal point changing device and laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921228765.5U CN210640480U (en) | 2019-07-31 | 2019-07-31 | Frequency conversion crystal point changing device and laser |
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| CN210640480U true CN210640480U (en) | 2020-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118156957A (en) * | 2024-03-11 | 2024-06-07 | 无锡卓海科技股份有限公司 | Point changing device for laser frequency doubling crystal and control method |
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2019
- 2019-07-31 CN CN201921228765.5U patent/CN210640480U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118156957A (en) * | 2024-03-11 | 2024-06-07 | 无锡卓海科技股份有限公司 | Point changing device for laser frequency doubling crystal and control method |
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