CN105846298A - Optical resonant cavity - Google Patents
Optical resonant cavity Download PDFInfo
- Publication number
- CN105846298A CN105846298A CN201610397285.6A CN201610397285A CN105846298A CN 105846298 A CN105846298 A CN 105846298A CN 201610397285 A CN201610397285 A CN 201610397285A CN 105846298 A CN105846298 A CN 105846298A
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- supporting plate
- plate
- output mirror
- reflector
- buffer
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- 230000003287 optical effect Effects 0.000 title claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000000670 limiting effect Effects 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000003139 buffering effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract description 2
- 210000002414 leg Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005658 nuclear physics Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/198—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors with means for adjusting the mirror relative to its support
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Telescopes (AREA)
Abstract
The invention discloses an optical resonant cavity. The optical resonant cavity is applicable to a gas laser and comprises an output mirror support plate, a reflecting mirror support plate, an output mirror supporting plate and a reflecting mirror supporting plate, wherein the gas laser provided by the scheme is additionally provided with a positioning pin, a first buffer element, a second buffer element and a limitation block, the positioning pin can be used for ensuring a direction of an output light ray of the output mirror, the first buffer element and the second buffer element can be used for reducing impact and vertical vibration during the vehicle-mounted transportation process, an effect of protecting the integral truss and the safety of the output mirror and a reflecting mirror is exerted, the damage to the gas laser is reduced, and the stability of the optical resonant cavity in a vehicle-mounted condition is ensured; and the reflecting mirror support plate can slide along a length direction of the resonant cavity, a vehicle chassis can telescopically change when a temperature is greatly changed, the position change between the reflecting mirror supporting plate and the output mirror supporting plate caused by chassis contraction can be eliminated by the movement of the reflecting mirror supporting plate, and the stability of the integral truss is ensured.
Description
Technical Field
The invention relates to the technical field of lasers, in particular to an optical resonant cavity.
Background
The gas laser has wide application prospect in the fields of military, industrial processing, new materials and nuclear physics.
The gas laser is a device for generating laser by using gas as working substance, and is composed of three main parts of optical resonant cavity, discharge cavity and power supply, the optical resonant cavity is a cavity in which light wave can be oscillated back and forth to provide optical energy feedback, and it is generally composed of two plane or concave spherical reflectors perpendicular to the axis of working medium.
The stable optical resonant cavity can prevent light rays from transversely escaping from the cavity after the light rays repeatedly reciprocate in the optical resonant cavity.
The optical resonant cavity of the gas laser in the prior art comprises an output mirror, a reflector, an output mirror supporting plate for fixing the output mirror, a reflector supporting plate for fixing the reflector and three indium steel pipes for connecting the output mirror supporting plate and the reflector supporting plate, wherein the output mirror supporting plate is fixed through an output mirror supporting plate, the reflector supporting plate is fixed through a reflector supporting plate, and when the gas laser is used under a vehicle-mounted condition or under a severe temperature change condition, the gas laser can cause instability of the optical resonant cavity due to vibration of a vehicle body or temperature change, so that the stability of the optical resonant cavity is influenced.
Therefore, how to ensure the stability of the optical resonant cavity under the vehicle-mounted condition or the severe temperature change condition becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides an optical resonant cavity to ensure the stability of the optical resonant cavity under the vehicle-mounted condition or the severe temperature change condition.
In order to achieve the purpose, the invention provides the following technical scheme:
an optical resonant cavity is suitable for a gas laser and comprises an output mirror supporting plate, a reflector supporting plate, an output mirror supporting plate and a reflector supporting plate, wherein the reflector supporting plate is arranged in parallel relative to the output mirror supporting plate, the output mirror supporting plate is used for fixing the output mirror supporting plate, the reflector supporting plate is used for fixing the reflector supporting plate, and the reflector supporting plate can slide along the length direction of the resonant cavity;
further comprising:
the positioning pin is arranged in the middle of the lower end of the output mirror support plate and used for ensuring that the direction of output light of the output mirror is unchanged, and the output mirror support plate is connected with the output mirror supporting plate through the positioning pin;
the first buffer piece is connected with the output mirror supporting plate and can buffer the vertical vibration of the output mirror supporting plate, and the first buffer piece is connected with the output mirror supporting plate;
the second buffer piece is connected with the reflector support plate and plays a role in buffering the vertical vibration of the reflector support plate;
and controlling the reflector support plate to slide along the linear direction, wherein the limiting block is fixedly connected with the reflector support plate, and the limiting block is connected with the reflector support plate through the second buffer piece.
Preferably, in the above optical resonator, the first buffer member includes:
the first connecting plate comprises a first horizontal plate and a first vertical plate vertically arranged with the first horizontal plate, the first horizontal plate is positioned between the output mirror supporting plate and the output mirror supporting plate, the first vertical plate is connected with the output mirror supporting plate through a bolt, and a first mounting hole is formed in the part of the first horizontal plate extending out of the output mirror supporting plate;
the guide post is in clearance fit with the first mounting hole, a second mounting hole is formed in the middle of the guide post, and the second mounting hole and the first mounting hole are coaxially arranged;
the tail end of the first elastic piece is abutted against the upper end face of the first horizontal plate;
the top wall of the first shell is abutted against the first elastic piece and the upper end surface of the guide post, the distance from the lower end surface of the first shell to the upper end surface of the first horizontal plate is 3-5mm, the top wall of the first shell is provided with a third mounting hole, and the third mounting hole is coaxial with the second mounting hole;
the first buffer piece penetrates through the third mounting hole and the second mounting hole in sequence and is used for fixing the first buffer piece on the fastener on the output mirror supporting plate, and the output mirror supporting plate 3 is provided with a mounting hole matched with the fastener.
Preferably, in the optical resonator, the fastener is a bolt, and the mounting hole is a bolt hole.
Preferably, in the optical resonant cavity, a first leveling washer is disposed between the bolt and the first housing.
Preferably, in the optical resonant cavity, two supporting legs are arranged at the lower end of the limiting block, an accommodating cavity is formed in the limiting block along the vertical direction, and the supporting legs of the limiting block are fixedly connected with the reflector supporting plate;
the second buffer includes:
the second connecting plate comprises a second horizontal plate and a second vertical plate vertically arranged with the second horizontal plate, the second vertical plate is connected with the reflector supporting plate through a bolt, the upper end surface of the second horizontal plate is matched with the lower end surface of the reflector supporting plate, the lower end surface of the second horizontal plate is matched with the upper end surface of the reflector supporting plate, the part of the second horizontal plate, which extends out of the reflector supporting plate, is positioned between the limiting block and the reflector supporting plate, and the second horizontal plate is provided with two sliding grooves for the supporting legs to slide;
and one end of the second elastic piece is abutted against the top wall of the accommodating cavity, and the other end of the second elastic piece is abutted against the second horizontal plate.
Preferably, in the above optical resonant cavity, the second buffer further includes:
the pressing block is matched with the top end of the second elastic piece;
the compression screw is used for adjusting the pressing force exerted on the second elastic piece by the pressing block and is in threaded fit with the limiting block;
and the sliding block is matched with the tail end of the second elastic piece.
Preferably, in the optical resonant cavity, the optical resonant cavity further includes a slider sleeve sleeved outside the slider, and the slider sleeve is engaged with the end of the second elastic element.
Preferably, in the optical resonator, a ball structure is further included, and the ball structure includes:
an oval through groove formed in the reflector supporting plate, wherein the extension direction of the long axis of the oval through groove is the same as the length direction of the resonant cavity, a steel ball is arranged in the oval through groove, and the steel ball abuts against the lower end face of the second horizontal plate;
the steel ball supporting plate is arranged on the lower end face of the reflector supporting plate and is connected with the reflector supporting plate through a screw;
the through hole is formed in the reflector supporting plate and is positioned at one end of the oval through groove, a third elastic piece is arranged in the through hole, the top end of the third elastic piece is abutted against the steel ball, and a first elastic piece protective sleeve is arranged between the third elastic piece and the steel ball;
a fixing rod matched with the tail end of the third elastic piece, wherein the fixing rod is connected with the reflector supporting plate through a bolt;
the step-shaped through hole is formed in the reflector supporting plate and arranged in the same straight line with the through hole, a fourth elastic piece is arranged at one end, with the larger diameter, of the step-shaped through hole, the top end of the fourth elastic piece abuts against the steel ball, and a second elastic piece protective sleeve is arranged between the fourth elastic piece and the steel ball;
and the pressing rod is abutted against the tail end of the fourth elastic part and is positioned at one end with the smaller diameter of the step-shaped through hole, the pressing rod adjusts pressing force provided for the fourth elastic part through a jackscrew, and a locking nut is arranged on the jackscrew.
Preferably, in the optical resonant cavity, the number of the first buffer members is two, and the first buffer members are symmetrically arranged on two sides of the positioning pin;
the number of the second buffer parts is one, and the second buffer parts are positioned in the middle of the reflector supporting plate;
cushions are arranged on two sides of the second buffer piece.
Preferably, in the optical resonator, the positioning pin is connected to the output mirror support plate by a bolt, and the positioning pin is connected to the output mirror support plate by a pin.
According to the technical scheme, the optical resonant cavity comprises the output mirror supporting plate, the reflector supporting plate, the output mirror supporting plate and the reflector supporting plate, and the positioning pin, the first buffer piece, the second buffer piece and the limiting block are additionally arranged on the optical resonant cavity. The positioning pin can ensure the direction of the light output by the output mirror, so that the light is prevented from transversely escaping out of the resonant cavity when the light reciprocates in the resonant cavity any number of times, and the stability of the optical resonant cavity is ensured; the first buffer member and the second buffer member can slow down impact and vertical vibration in the vehicle-mounted transportation process, so that the whole truss, the output mirror and the reflector are protected to be safe, the damage to the optical resonant cavity is reduced, and the stability of the optical resonant cavity under the vehicle-mounted condition is ensured; the speculum backup pad can slide along the length direction of resonant cavity, when great change appears in the temperature, flexible change can take place for the car basement, the motion of speculum layer board can be eliminated because the flexible position change between speculum layer board and the output mirror layer board that causes of basement, guarantee the stability of whole truss, the stopper can play spacing and guide effect to the kinematic position of speculum backup pad, guarantee that the direction of motion in the speculum backup pad is unchangeable, thereby avoid light to come and go outside the horizontal escape cavity when arbitrary many times in the optics resonant cavity, the stability of using when the violent change of temperature of optics resonant cavity has been guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an optical resonator according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first buffer according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a second buffer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a ball structure according to an embodiment of the present invention.
1. Output mirror backup pad, 2, the speculum backup pad, 3, the output mirror layer board, 4, the speculum layer board, 5, the locating pin, 6, the stopper, 7, first connecting plate, 8, the guide post, 9, first elastic component, 10, first casing, 11, the second connecting plate, 12, the second elastic component, 13, the briquetting, 14, housing screw, 15, the slider, 16, the slider cover, 17, the steel ball, 18, the third elastic component, 19, the dead lever, 20, the fourth elastic component, 21, the depression bar, 22, the jackscrew, 23, lock nut.
Detailed Description
The invention discloses an optical resonant cavity, which is used for ensuring the stability of the optical resonant cavity under a vehicle-mounted condition or a condition of violent temperature change.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, fig. 1 is a schematic structural diagram of an optical resonant cavity according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a first buffer according to an embodiment of the present invention; fig. 3 is a schematic structural view of a second buffer according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of a ball structure according to an embodiment of the present invention.
The invention discloses an optical resonant cavity, which is suitable for a gas laser and comprises an output mirror supporting plate 1, a reflector supporting plate 2, an output mirror supporting plate 3 and a reflector supporting plate 4, wherein the reflector supporting plate 2 is arranged in parallel with the output mirror supporting plate 1, the output mirror supporting plate 3 is used for fixing the output mirror supporting plate 1, the reflector supporting plate 4 is used for fixing the reflector supporting plate 2, three indium steel pipes are arranged in front of the output mirror supporting plate 1 and the reflector supporting plate 2, and a combined structure of the output mirror supporting plate 1, the reflector supporting plate 2 and the indium steel pipes is called a truss in the following.
The optical resonant cavity provided by the scheme further comprises: locating pin 5, first bolster, second bolster and stopper 6.
The locating pin 5 sets up in the lower extreme middle part of output mirror backup pad 1, and output mirror backup pad 1 passes through locating pin 5 with output mirror layer board 3 to be connected, and the position of output mirror backup pad 1 on output mirror layer board 3 can be fixed to locating pin 5 to guarantee the output light's of output mirror direction, guarantee the stability that optical resonator used.
The first buffer part is connected with the output mirror supporting plate 1, is connected with the output mirror supporting plate 3 and can buffer the vertical vibration of the output mirror supporting plate 1. Vehicle-mounted in-process vehicle vibrations, output mirror backup pad 1 vibrations along with the automobile body together, and the in-process of vibrations can lead to the fact certain damage to truss and output mirror, and first bolster can effectively slow down impact and the vibrations of vehicle driving in-process, plays effectual guard action to truss and output mirror to avoid because truss and the damaged stability that influences the optical resonator of output mirror.
The second buffer member is connected with the reflector support plate 2, and can buffer the up-and-down vibration of the reflector support plate 2. Vehicle-mounted in-process vehicle vibrations, speculum backup pad 2 along with the automobile body vibrations together, the in-process of vibrations can lead to the fact certain damage to truss and speculum, and the second bolster can effectively slow down impact and the vibrations of vehicle driving in-process, plays effectual guard action to truss and speculum to avoid because truss and the impaired stability that influences the optical resonator of speculum.
First bolster and second bolster have played the guard action to output mirror backup pad 1 and speculum backup pad 2 of gas laser respectively, have played the guard action to optical resonator from two aspects promptly, do not have the optical resonator who sets up the bolster among the prior art, have not only guaranteed optical resonator's stability, have still improved optical resonator's life to a certain extent. The adjustment process is automatically realized through the first buffer part and the second buffer part, and manual adjustment is not needed, so that the manual labor intensity for adjusting the optical resonant cavity is reduced.
When the outside temperature changes violently, the vehicle base can stretch and contract due to the temperature change, because the output mirror supporting plate and the reflector supporting plate are fixedly connected with the vehicle base, the output mirror supporting plate and the reflector supporting plate can change the position together with the vehicle base along with the stretching and the contraction of the vehicle base, thereby influencing the structure of the truss and influencing the stability of the truss, the reflector supporting plate 2 can slide along the length direction of the resonant cavity in the scheme, when the reflector supporting plate 4 changes along with the position of the vehicle base, the reflector supporting plate 2 can slide along the length direction of the resonant cavity, the moving direction of the reflector supporting plate 2 is opposite to that of the reflector supporting plate 4, the position between the reflector supporting plate 2 and the output mirror supporting plate 1 is adjusted, the structure of the truss is not changed, the stability of the truss is ensured, and the stability of the optical resonant cavity when the temperature changes violently is ensured.
In addition, the adjusting process is an automatic adjusting process, manual intervention is not needed, and the labor intensity of workers is further reduced.
The stopper 6 controls the sliding direction of the reflector support plate 2 on the straight line, ensures that the reflector support plate 2 can only slide along the length direction of the resonant cavity, does not swing left and right, ensures the directionality of the output laser beam, avoids light rays from transversely escaping from the resonant cavity when the light rays reciprocate in the resonant cavity for any number of times, and ensures the stability of the optical resonant cavity.
Stopper 6 and 4 fixed connection of speculum layer board in this scheme, stopper 6 is connected with speculum backup pad 2 through the second bolster to just also realized the indirect connection of second bolster and speculum layer board 4, thereby realized being connected of speculum backup pad 2 and speculum layer board 4.
In one embodiment of the present invention, the first buffer includes: the first connecting plate 7, the guide post 8, the first elastic member 9, the first housing 10 and the fastener.
The first connecting plate 7 includes a first horizontal plate and a first vertical plate arranged vertically with the first horizontal plate, the first horizontal plate is located between the output mirror support plate 1 and the output mirror support plate 3, and the first vertical plate is connected with the output mirror support plate 1 through a bolt.
The part of the first horizontal plate extending out of the output mirror support plate 1 is provided with a first mounting hole, one part of the first horizontal plate is shielded by the output mirror support plate 1, the other part of the first horizontal plate is not shielded by the output mirror support plate 1, and the part which is not shielded is used for mounting the guide post 8, the first elastic piece 9 and the first shell 10.
Preferably, the first horizontal plate of the first connecting plate 7 is a T-shaped structure, and the first housing 10 has a limiting effect on the vertical vibration of the first connecting plate 7.
The guide post 8 is in clearance fit with the first mounting hole, the guide post 8 can guide the telescopic movement of the first elastic piece 9, a second mounting hole is formed in the middle of the guide post 8, and the second mounting hole and the first mounting hole are coaxially arranged;
the first elastic part 9 is sleeved on the guide post 8, the first elastic part 9 is a main part playing a role in buffering, the tail end of the first elastic part 9 abuts against the upper end face of the first horizontal plate, the top end of the first elastic part abuts against the first shell 10, and the first elastic part 9 can effectively reduce impact and vibration in the driving process of the vehicle.
Preferably, the lower end of the first elastic member 9 is fixedly connected with the first horizontal plate.
The first shell 10 is sleeved on the outer side of the first elastic part 9, the top wall of the first shell 10 abuts against the upper end faces of the first elastic part 9 and the guide column 8, the guide column 8 can support the first shell 10, and the first shell 10 can also protect the first elastic part 9 and the guide column 8.
The third mounting hole has been seted up to the roof of first casing 10, and the third mounting hole is coaxial with the second mounting hole, and third mounting hole and second mounting hole provide the installation basis for the fastener.
The distance from the lower end of the first housing 10 to the upper end surface of the first horizontal plate is 3 to 5mm, which provides a space for the up-and-down movement of the output mirror support plate 1 while limiting the pop-up height of the output mirror support plate 3.
Pass third mounting hole and second mounting hole in proper order and be used for fixing the fastener on output mirror layer board 3 with first bolster, the fastener is fixed guide post 8 and first casing 10 on output mirror layer board 3, offer on the output mirror layer board 3 with fastener complex mounting hole.
The guide post 8 is fixed to the output mirror mount 3 by a fastener so that the guide post 8 does not move up and down with the first link plate 7, but the first link plate 7 can move up and down in the axial direction of the guide post 8.
The first buffer piece is composed of a first shell 10, a first elastic piece 9, a guide column 8 and a fastener in sequence from outside to inside, wherein the length of the guide column 8 is longer than that of the shell 10, and the fastener penetrates through the first shell 10 and the guide column 8 in sequence and then is connected with the output shaft supporting plate 3.
The guide posts 8 may be metal guide posts.
In this scheme, the first elastic member 9 may be a compression spring, a rubber ring or a spring plate.
Preferably, the fastener is a bolt or a screw, a bolt hole matched with the bolt is formed in the output mirror supporting plate 3, and the bolt hole, the second mounting hole and the third mounting hole are coaxially arranged. The pressing force exerted by the first housing 10 on the first elastic element 9 can be adjusted by tightening or loosening the bolt or screw, so that the damping effect of the first damping element is adjusted.
Preferably, a first leveling washer is disposed between the bolt or screw and the first housing 10, and the first leveling washer is a spherical leveling washer.
The lower extreme of stopper 6 is provided with two supporting legss, has seted up along vertical direction in the stopper 6 and has held the cavity, stopper 6's supporting legs and reflector layer board 4 fixed connection, is provided with the recess between two supporting legss of stopper 6, this recess and stopper 6 hold the cavity intercommunication.
The second buffer member includes: a second connecting plate 11 and a second elastic element 12.
The second connecting plate 11 comprises a second horizontal plate and a second vertical plate vertically arranged with the second horizontal plate, the second vertical plate is connected with the reflector supporting plate 2 through a bolt, the upper end surface of the second horizontal plate is matched with the lower end surface of the reflector supporting plate 2, the lower end surface of the second horizontal plate is matched with the upper end surface of the reflector supporting plate 4, the part of the second horizontal plate extending out of the reflector supporting plate 2 is located between the limiting block 6 and the reflector supporting plate 4, one part of the second horizontal plate is shielded by the reflector supporting plate 2, the other part is not shielded by the reflector supporting plate 2, the part which is not shielded by the reflector supporting plate 2 is used for being matched with the limiting block 6, two sliding grooves for supporting the sliding of the supporting legs are arranged on the second horizontal plate, the width of the sliding grooves is equal to the width of the supporting legs of the limiting block 6, and the length of the sliding grooves is longer than that of the supporting legs, so that a space is provided for the sliding of. The second horizontal plate of second connecting plate 11 also can play the limiting action of beating to speculum backup pad 2, and the space of beating of speculum backup pad 2 is the recess that two stabilizer blades of stopper 6 formed.
The second elastic component 12 is located in the containing cavity of the limiting block 6, one end of the second elastic component 12 abuts against the top wall of the containing cavity, and the other end of the second elastic component abuts against the second horizontal plate.
The second elastic member 12 can play a role in effectively alleviating impact and vibration during the driving of the vehicle, and preferably, the lower end of the second elastic member 12 is fixedly connected with the second horizontal plate.
The accommodating cavity of the limiting block 6 can guide the movement of the second elastic part 12 and can also protect the second elastic part 12.
The second elastic element 12 may be a compression spring, a rubber ring, or a spring plate.
Second connecting plate 11 is connected with speculum backup pad 2, the second horizontal plate of second connecting plate 11 passes through stopper 6 slidable and connects on speculum layer board 4, when speculum layer board 4 is along with car basement motion, speculum backup pad 2 also moves, output mirror backup pad 1 is motionless, the direction of motion of speculum backup pad 2 is opposite with speculum layer board 4's direction of motion, the sliding tray is the sliding space of the provision of speculum backup pad 2, the stability of optical resonator under the violent change condition of temperature can be guaranteed to this kind of design.
In one embodiment of the present invention, the second buffer further comprises: a pressing block 13, a compression screw 14 and a sliding block 15. Wherein,
the second buffer part comprises a compression screw 14, a pressing block 13, a second elastic part 12 and a sliding block 15 from top to bottom in sequence. Wherein,
the pressing block 13 is matched with the top end of the second elastic part 12, and preferably, a groove matched with the pressing block 13 is formed in the top end of the second elastic part 12, so that the pressing block 13 can be effectively limited;
the compression screw 14 is used for adjusting the pressing force of the pressing block 13 on the second elastic part 12, the compression screw 14 is in threaded fit with the limiting block 6, a threaded hole matched with the compression screw is formed in the top end of the limiting block 6, and the compression screw 14 is adjusted to adjust the pressing force of the pressing block 13 on the second elastic part 12;
the slider 15 cooperates with the end of second elastic component 12, and is preferred, the end of second elastic component 12 offer with slider 15 complex recess, the lower terminal surface of slider 15 exposes recess and the contact of second horizontal plate, and slider 15's design can reduce the frictional force between second bolster and the second horizontal plate, reduces the damage to the second horizontal plate simultaneously. Preferably, the material of the slider 15 is polytetrafluoroethylene.
Preferably, the second buffer member provided by the present invention further includes a sliding block sleeve 16 disposed outside the sliding block 15, and the sliding block sleeve 16 is engaged with the end of the second elastic member 12.
The second buffer part is composed of a compression screw 15, a pressing block 13, a second elastic part 12, a sliding block sleeve 16 and a sliding block 15 in sequence from top to bottom.
The tail end of the second elastic part 12 is provided with a groove matched with the sliding block sleeve 16, the sliding block sleeve 16 is positioned in the groove, the sliding block sleeve 16 is provided with a groove matched with the sliding block 15, and the sliding block 15 is positioned in the groove of the sliding block sleeve 16.
Preferably, the end of the slider sleeve 16 is provided with a folded edge, and the folded edge is matched with the end of the second elastic member 13 to play a good role in protecting the second elastic member.
When the second elastic member 12 is a compression spring, the pressing piece 13 is located in the hollow portion of the compression spring, and the slider sleeve 16 is also located in the hollow portion of the compression spring.
The gas laser provided by the invention further comprises a ball structure, which is as follows.
Set up the oval logical groove in speculum backup pad 4, the major axis extending direction that the oval led to the groove is the same with the length direction of resonant cavity, and oval logical inslot is equipped with steel ball 17, and steel ball 17 can slide in oval logical inslot, and steel ball 17 offsets with the lower terminal surface of second horizontal plate, can further reduce the sliding resistance of speculum backup pad 3, realizes the quick adjustment of speculum backup pad 4 position.
The steel ball supporting plate is arranged on the lower end face of the reflector supporting plate 4 and is connected with the reflector supporting plate 4 through screws, so that the steel balls 17 are prevented from falling from the oval grooves.
The through hole is formed in the reflector supporting plate 4 and located at one end of the oval through groove, the third elastic piece 18 is arranged in the through hole, the top end of the third elastic piece 18 abuts against the steel ball 17, the third elastic piece 18 can assist the steel ball 17 to return to the initial position, a first elastic piece protective sleeve is arranged between the third elastic piece 18 and the steel ball, and the first elastic piece protective sleeve can play a role in protecting the steel ball 13 and the third elastic piece 18.
And the fixing rod 19 is matched with the tail end of the third elastic piece 18, and the fixing rod 19 can block the through hole, so that the third elastic piece 18 is prevented from being pushed out of the through hole, and the stable work of the device is ensured.
One end of the fixed rod 19, which is matched with the reflector supporting plate 4, is provided with a connecting plate, the whole fixed rod 19 is in a T shape, and the connecting plate of the fixed rod 19 is in bolt connection with the reflector supporting plate 4.
The connecting plate and the reflector supporting plate 4 are connected through bolts, so that the device can be conveniently installed and maintained, and the fixing rod 19 and the reflector supporting plate 4 can be connected through other connecting modes without specific limitation.
The step-shaped through hole is formed in the reflector supporting plate 4 and arranged in the same straight line with the through hole, one end of the step-shaped through hole is larger in diameter, and the other end of the step-shaped through hole is smaller in diameter. The end with the larger diameter is close to the steel ball 17.
A fourth elastic part 20 is arranged at one end with a larger diameter of the step-shaped through hole, the top end of the fourth elastic part 20 is abutted against the steel ball 17, the fourth elastic part 20 can assist the steel ball 17 to return to an initial position, a second elastic part protective sleeve is arranged between the fourth elastic part 20 and the steel ball 17, and the second elastic part protective sleeve can protect the fourth elastic part 20 and the steel ball 17;
the pressing rod 21 is abutted to the tail end of the fourth elastic part 20, the pressing plate 21 is located at one end with a small diameter of the step-shaped through hole, the pressing force of the pressing rod 21 on the fourth elastic part 20 can be adjusted by adjusting the position of the jackscrew 22, the jackscrew 22 is provided with the locking nut 23, the locking nut 23 can fix the jackscrew 23, and the jackscrew 23 is guaranteed to stably compress the pressing rod 21.
The first elastic piece protective sleeve and the second elastic piece protective sleeve are made of polytetrafluoroethylene materials, and friction force between the first elastic piece protective sleeve and the steel ball 17 can be reduced to a certain degree.
In this embodiment, the third elastic element 18 and the fourth elastic element 20 may be compression springs, rubber rings or elastic sheets.
Preferably, the number of the first buffer parts is two, and the first buffer parts are symmetrically arranged on two sides of the positioning pin 5, so that an effective buffering effect can be achieved.
The number of the second buffer parts is one, and the second buffer parts are positioned in the middle of the reflector supporting plate 4.
The both sides of second bolster are provided with the blotter, and the blotter also can play the effect of alleviating impact and vibrations.
The positioning pin 5 is connected with the output mirror supporting plate 1 through a bolt, the positioning pin 5 is connected with the output mirror supporting plate 3 through a pin, the limiting block 6, the steel ball supporting plate and the steel ball 17 in the scheme of adjusting the optical resonant cavity can be conveniently quenched by adopting the pin connection, and the use is prevented from being influenced by deformation caused by overlarge stress.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An optical resonant cavity is suitable for a gas laser and comprises an output mirror supporting plate (1), a reflector supporting plate (2) which is arranged in parallel relative to the output mirror supporting plate (1), an output mirror supporting plate (3) for fixing the output mirror supporting plate (1) and a reflector supporting plate (4) for fixing the reflector supporting plate (2), and is characterized in that the reflector supporting plate (2) can slide along the length direction of the resonant cavity;
further comprising:
the positioning pin (5) is arranged in the middle of the lower end of the output mirror support plate (1) and used for ensuring that the output light direction of the output mirror is unchanged, and the output mirror support plate (1) is connected with the output mirror supporting plate (3) through the positioning pin (5);
the first buffer piece is connected with the output mirror support plate (1) and can buffer the vertical vibration of the output mirror support plate (1), and the first buffer piece is connected with the output mirror supporting plate (3);
the second buffer piece is connected with the reflector support plate (2) and plays a role in buffering the vertical vibration of the reflector support plate (2);
control gliding stopper (6) of linear direction is followed in speculum backup pad (2), stopper (6) with speculum layer board (4) fixed connection, stopper (6) pass through the second bolster with speculum backup pad (2) are connected.
2. The resonant optical cavity of claim 1, wherein the first buffer comprises:
the first connecting plate (7) comprises a first horizontal plate and a first vertical plate vertically arranged with the first horizontal plate, the first horizontal plate is positioned between the output mirror supporting plate (1) and the output mirror supporting plate (3), the first vertical plate is connected with the output mirror supporting plate (1) through bolts, and a first mounting hole is formed in a part of the first horizontal plate, which extends out of the output mirror supporting plate (1);
the guide post (8) is in clearance fit with the first mounting hole, a second mounting hole is formed in the middle of the guide post (8), and the second mounting hole and the first mounting hole are coaxially arranged;
the first elastic piece (9) is sleeved on the guide post (8), and the tail end of the first elastic piece (9) is abutted against the upper end face of the first horizontal plate;
the first shell (10) is sleeved on the outer side of the first elastic piece (9), the top wall of the first shell (10) is abutted against the upper end faces of the first elastic piece (9) and the guide column (8), the distance from the lower end face of the first shell (10) to the upper end face of the first horizontal plate is 3-5mm, a third mounting hole is formed in the top wall of the first shell (10), and the third mounting hole is coaxial with the second mounting hole;
the first buffer piece penetrates through the third mounting hole and the second mounting hole in sequence and is used for fixing the first buffer piece on a fastener on the output mirror supporting plate (3), and the output mirror supporting plate (3) is provided with a mounting hole matched with the fastener.
3. The resonant optical cavity of claim 2, wherein the fasteners are bolts and the mounting holes are bolt holes.
4. Optical resonator according to claim 3, characterized in that a first levelling washer is arranged between the bolt and the first housing (10).
5. The optical resonator according to claim 1, wherein two supporting legs are arranged at the lower end of the limiting block (6), an accommodating cavity is formed in the limiting block (6) along the vertical direction, and the supporting legs of the limiting block (6) are fixedly connected with the reflector supporting plate (4);
the second buffer includes:
the second connecting plate (11) comprises a second horizontal plate and a second vertical plate vertically arranged with the second horizontal plate, the second vertical plate is connected with the reflector supporting plate (2) through a bolt, the upper end surface of the second horizontal plate is matched with the lower end surface of the reflector supporting plate (2), the lower end surface of the second horizontal plate is matched with the upper end surface of the reflector supporting plate (4), the part of the second horizontal plate extending out of the reflector supporting plate (2) is positioned between the limiting block (6) and the reflector supporting plate (4), and the second horizontal plate is provided with two sliding grooves for the supporting legs to slide;
and the second elastic piece (12), the second elastic piece (12) is positioned in the containing cavity, one end of the second elastic piece (12) is abutted against the top wall of the containing cavity, and the other end of the second elastic piece is abutted against the second horizontal plate.
6. The resonant optical cavity of claim 5, wherein the second buffer further comprises:
a pressing block (13) matched with the top end of the second elastic piece (12);
a compression screw (14) for adjusting the pressing force of the pressing block (13) on the second elastic part (12), wherein the compression screw (14) is in threaded fit with the limiting block (6);
and a slider (15) engaged with an end of the second elastic member (12).
7. An optical resonator according to claim 6, further comprising a slider sleeve (16) arranged around the outside of the slider (15), the slider sleeve (16) engaging the end of the second resilient member (12).
8. The resonant optical cavity of claim 5, further comprising a ball bearing structure comprising:
an oval through groove is formed in the reflector supporting plate (4), the extension direction of the long axis of the oval through groove is the same as the length direction of the resonant cavity, a steel ball (17) is arranged in the oval through groove, and the steel ball (17) abuts against the lower end face of the second horizontal plate;
the steel ball supporting plate is arranged on the lower end face of the reflector supporting plate (4) and is connected with the reflector supporting plate (4) through a screw;
the through hole is formed in the reflector supporting plate (4) and is positioned at one end of the oval through groove, a third elastic piece (18) is arranged in the through hole, the top end of the third elastic piece (18) is abutted against the steel ball (17), and a first elastic piece protective sleeve is arranged between the third elastic piece (18) and the steel ball;
a fixing rod (19) matched with the tail end of the third elastic piece (18), wherein the fixing rod (19) is in bolt connection with the reflector supporting plate (4);
the reflector supporting plate is provided with a step-shaped through hole which is formed in the reflector supporting plate (4) and is arranged along the same straight line with the through hole, a fourth elastic part (20) is arranged at one end with the larger diameter of the step-shaped through hole, the top end of the fourth elastic part (20) is abutted against the steel ball (17), and a second elastic part protective sleeve is arranged between the fourth elastic part (20) and the steel ball (17);
the pressing rod (21) is abutted against the tail end of the fourth elastic piece (20), the pressing rod (21) is located at one end with the smaller diameter of the step-shaped through hole, the pressing rod (21) adjusts pressing force provided for the fourth elastic piece (20) through a jackscrew (22), and a locking nut (23) is arranged on the jackscrew (22).
9. The resonant optical cavity according to claim 1, wherein the number of the first buffer members is two, and the first buffer members are symmetrically arranged on two sides of the positioning pin (5);
the number of the second buffer parts is one, and the second buffer parts are positioned in the middle of the reflector supporting plate (4);
cushions are arranged on two sides of the second buffer piece.
10. The resonant optical cavity according to claim 1, wherein the alignment pin (5) is bolted to the output mirror support plate (1) and the alignment pin (5) is pinned to the output mirror support plate (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610397285.6A CN105846298B (en) | 2016-06-07 | 2016-06-07 | A kind of optical resonator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610397285.6A CN105846298B (en) | 2016-06-07 | 2016-06-07 | A kind of optical resonator |
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| CN105846298B CN105846298B (en) | 2018-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806306A (en) * | 2018-04-12 | 2020-02-18 | 安徽大学 | Device and method for measuring temperature change of cavity of resonant cavity of multi-longitudinal-mode laser |
| CN111712974A (en) * | 2018-03-30 | 2020-09-25 | 松下神视株式会社 | Laser oscillator unit and laser processing apparatus |
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| US20030193985A1 (en) * | 2002-04-11 | 2003-10-16 | Shoichiro Hara | Orthogonally excited-type laser oscillator |
| CN101630809A (en) * | 2008-07-17 | 2010-01-20 | 发那科株式会社 | Gas laser oscillator |
| CN201552385U (en) * | 2009-11-20 | 2010-08-18 | 深圳市大族激光科技股份有限公司 | Laser regulating device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030193985A1 (en) * | 2002-04-11 | 2003-10-16 | Shoichiro Hara | Orthogonally excited-type laser oscillator |
| CN101630809A (en) * | 2008-07-17 | 2010-01-20 | 发那科株式会社 | Gas laser oscillator |
| CN201552385U (en) * | 2009-11-20 | 2010-08-18 | 深圳市大族激光科技股份有限公司 | Laser regulating device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111712974A (en) * | 2018-03-30 | 2020-09-25 | 松下神视株式会社 | Laser oscillator unit and laser processing apparatus |
| CN111712974B (en) * | 2018-03-30 | 2022-12-02 | 松下神视株式会社 | Laser oscillator unit and laser processing apparatus |
| CN110806306A (en) * | 2018-04-12 | 2020-02-18 | 安徽大学 | Device and method for measuring temperature change of cavity of resonant cavity of multi-longitudinal-mode laser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846298B (en) | 2018-06-26 |
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