CN115149381B

CN115149381B - Solid laser with multiple working media

Info

Publication number: CN115149381B
Application number: CN202211067979.5A
Authority: CN
Inventors: 姜凯; 任一帆
Original assignee: Beijing Century Feixun Technology Co ltd
Current assignee: Beijing Century Feixun Technology Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-11-15
Anticipated expiration: 2042-09-02
Also published as: CN115149381A

Abstract

The invention provides a solid laser with a plurality of working media, which comprises four reflecting cavities, a medium conversion wheel, an anti-reversion mechanism, a medium positioning mechanism, a laser shell, a bottom element, a conductive mechanism, an aperture mechanism and a light condensation mechanism, wherein the four reflecting cavities are all arranged inside the medium conversion wheel, the medium conversion wheel is arranged on the laser shell, the laser shell is arranged on the bottom element, the conductive mechanism is arranged on the bottom element, the anti-reversion mechanism is arranged at one end of the medium conversion wheel, the medium positioning mechanism is arranged at the other end of the medium conversion wheel, the aperture mechanism is arranged on the bottom element, and the light condensation mechanism is arranged on the bottom element. The invention belongs to a solid laser, and particularly relates to a solid laser with a plurality of working media.

Description

Solid laser with multiple working media

Technical Field

The invention belongs to a solid laser, and particularly relates to a solid laser with a plurality of working media.

Background

The solid laser is a laser using a solid material as a working medium, the working medium of the solid laser is prepared by doping metal ions capable of generating stimulated emission into crystals or glass, a glass laser working substance is easy to prepare, but the glass laser working substance has wider fluorescence spectrum line and poorer thermal property and is not suitable for working under high average power; the crystal laser working substance is a solid laser material with the best comprehensive performance at present, has the characteristics of high gain, low threshold, high efficiency, low loss, good thermal conductivity and good thermal shock resistance, but has higher cost due to the complex crystal growth technology for obtaining high-quality large-size materials.

The working modes of the solid laser are mainly divided into three types: the laser device comprises a stable state mode, a single pulse mode and a heat capacity mode, wherein the stable state mode is a classical laser working mode and is characterized in that cooling is carried out while laser excitation is carried out, but the internal and external temperature of a working substance is easy to generate large gradient, and the medium surface generates tensile stress to cause the medium to deform, so that laser beams generate optical deformation; the single pulse mode is characterized by large instantaneous power, short action time and more deposition energy dissipation of a target point, thus leading to lower efficiency; the heat capacity mode is a new working mode provided on the basis of a single pulse mode, and is characterized in that the laser does not cool when working, the laser is rapidly cooled after primary light emitting, then light emitting is carried out again, and the heat capacity mode circulates in sequence.

The solid heat capacity laser needs to be rapidly cooled when a medium is at a high temperature, so that the strength requirement on the medium is high, a crystal laser substance with good thermal shock resistance is needed, in order to ensure that the surface temperature of the medium is high and the central temperature is low, a plurality of pump lamps need to be arranged by taking the medium as a central array, the cost is high, high-efficiency refrigeration equipment is needed for rapidly cooling the medium, and a solid laser which can realize a heat capacity mode without a high-strength medium and high-efficiency heat dissipation is lacked at present.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a solid laser with a plurality of working media, which aims to solve the problems that the solid heat capacity laser needs to be rapidly cooled at high temperature of the medium, so that the strength requirement on the medium is higher, a crystal laser substance with good thermal shock resistance is needed to be used, a plurality of pump lamps need to be arranged by taking the medium as a central array in order to ensure that the surface temperature of the medium is higher and the central temperature is lower, and high-efficiency refrigerating equipment is also needed for rapidly cooling the medium.

The technical scheme adopted by the invention is as follows: the invention provides a laser device, which comprises four reflecting cavities, a medium conversion wheel, an anti-reversal mechanism, a medium positioning mechanism, a laser device shell, a bottom element, a conducting mechanism, an aperture mechanism and a light condensing mechanism, wherein the four reflecting cavities are all arranged in the medium conversion wheel, the medium conversion wheel is arranged on the laser device shell, the laser device shell is arranged on the bottom element, the conducting mechanism is arranged on the bottom element, the anti-reversal mechanism is arranged at one end of the medium conversion wheel, the medium positioning mechanism is arranged at the other end of the medium conversion wheel, the aperture mechanism is arranged on the bottom element, and the light condensing mechanism is arranged on the bottom element.

Further, the reflection chamber includes the reflection shell, the inside medium support that is equipped with of reflection shell, be equipped with working medium in the medium support, reflection shell one end is equipped with the front shroud, the reflection shell other end is equipped with the pumping lamp stand, be equipped with two pump lamps on the pumping lamp stand, be equipped with preceding light-emitting window on the front shroud, be equipped with back light-emitting window on the pumping lamp stand, the inside four cavitys that are equipped with of medium conversion wheel, the center of medium conversion wheel is equipped with the pivot, pivot one end is equipped with the spline head, the pivot other end is equipped with four tooth ratchet wheels, it is equipped with the knob to be located four tooth ratchet wheel one side to be close to four tooth ratchet wheel one end in the pivot, uses a medium conversion wheel that has four cavitys to put working medium and the pump lamp of four lasers in order to realize that a laser instrument uses the scheme of a plurality of working medium.

Furthermore, the anti-reversion mechanism comprises an inner ratchet sleeve arranged at one end of the rotating shaft, a steering limiting wheel is arranged inside the inner ratchet sleeve, a spline hole is formed in the steering limiting wheel, a circumferential fixed clamping block is arranged below the inner ratchet sleeve, the medium positioning mechanism comprises a laser rear cover arranged at the other end of the rotating shaft, a telescopic rod jack is arranged above the laser rear cover, a telescopic rod is arranged inside the telescopic rod jack, a spring blocking piece is arranged on the telescopic rod, a first spring is arranged inside the telescopic rod jack and located on one side of the spring blocking piece, a four-tooth positioning disc is arranged at one end, away from the telescopic rod jack, of the telescopic rod, the inner ratchet sleeve and the steering limiting wheel can enable the medium conversion wheel to rotate only in one direction, the medium which is not cooled is prevented from being reused, and the four-tooth ratchet and the four-tooth positioning disc can assist the medium conversion wheel to position when rotating, so that the medium is prevented from deviating from a working position.

Further, be equipped with the runner standing groove on the laser instrument shell, the laser instrument shell top is located runner standing groove one end and is equipped with first pivot seat, the laser instrument shell top is located the runner standing groove other end and is equipped with the second pivot seat, the laser instrument shell is close to first pivot seat one end and is equipped with the light ring protective housing, be equipped with the regulation pole rotating groove on the light ring protective housing.

The bottom element comprises an element guide rail, a front end reflector is arranged at one end of the element guide rail, a rear reflector is arranged at the other end of the element guide rail, a rebound seat is arranged on one side, located on the rear reflector, of the element guide rail, a guide rod is arranged on the rebound seat, a second spring is arranged on the guide rod, two wire grooves are arranged at one end, close to the rear reflector, of the element guide rail, the conductive mechanism comprises a power wire arranged at one end of a rear cover of the laser, a parallel circuit board is arranged inside the rear cover of the laser, two parallel output interfaces are arranged on the parallel circuit board, a sliding guide station is arranged on the element guide rail, two conductive plates are arranged on the sliding guide station, the conductive plates are connected with the parallel output interfaces through circuits, a guide rod sleeve for the guide rod to penetrate through is arranged between the two conductive plates on the sliding guide station, the sliding guide station can slide backwards when a medium conversion wheel rotates, and supplies power to the pump lamp when a next working medium comes to a working position.

Further, the diaphragm mechanism comprises a diaphragm outer ring arranged inside the diaphragm protective shell, a diaphragm inner ring is arranged on one side of the diaphragm outer ring, a plurality of blades are arranged on the diaphragm inner ring, and a diaphragm adjusting rod is arranged inside the adjusting rod rotating groove and outside the diaphragm inner ring.

Furthermore, the condensing mechanism comprises a front end cover plate which is arranged on the laser shell and is far away from one end of the laser rear cover, an adjustable lens is arranged on the front end cover plate, and a focusing lens is arranged inside the adjustable lens.

The invention with the structure has the following beneficial effects: the invention provides a solid laser with a plurality of working media, which realizes the following beneficial effects:

(1) Four reflective cavities are provided and each reflective cavity contains a laser medium and a pump lamp, which greatly increases the available cooling time of each laser medium.

(2) An anti-reversion mechanism is used at the front end of the rotating wheel to prevent the solid medium which is not cooled to be used repeatedly when the laser is used.

(3) The rear end of the rotating wheel is provided with the medium positioning mechanism, so that the working medium can be quickly and accurately positioned at the working position.

Drawings

FIG. 1 is an isometric view of a solid state laser incorporating a plurality of working media according to the present invention;

FIG. 2 is an exploded isometric view of a solid state laser with multiple working media according to the present invention;

FIG. 3 is an exploded isometric view of the media transfer wheel;

FIG. 4 is a schematic view of a rotating shaft structure of the media conversion wheel;

FIG. 5 is a schematic view of an inner ratchet sleeve structure of the anti-reverse mechanism;

FIG. 6 is a schematic diagram of a laser rear cover structure;

FIG. 7 is a cross-sectional view of the laser back cover;

FIG. 8 is a schematic diagram of a laser housing;

FIG. 9 is a structural schematic of the bottom member;

FIG. 10 is a schematic view of the structure of part A of the base member;

FIG. 11 is a schematic view of the diaphragm mechanism;

fig. 12 is a schematic structural view of the light condensing mechanism.

Wherein, 1, a reflection cavity; 2. a media transfer wheel; 3. a reverse rotation prevention mechanism; 4. a medium positioning mechanism; 5. a laser housing; 6. a bottom member; 7. a conductive mechanism; 8. an aperture mechanism; 9. a light condensing mechanism; 10. a reflective housing; 11. a media support; 12. a working medium; 13. a front cover plate; 14. a pump lamp holder; 15. a pump lamp; 16. a front light outlet; 17. a rear light outlet; 18. a cavity; 19. a rotating shaft; 20. a spline head; 21. a four-tooth ratchet wheel; 22. a knob; 23. an inner ratchet sleeve; 24. a steering limit wheel; 25. a splined bore; 26. a clamping block is fixed in the circumferential direction; 27. a laser rear cover; 28. inserting holes of the telescopic rods; 29. a telescopic rod; 30. a spring catch; 31. a first spring; 32. a four-tooth positioning plate; 33. a runner placing groove; 34. a first shaft seat; 35. a second spindle base; 36. an aperture protective housing; 37. an adjusting rod rotating groove; 38. a component guide rail; 39. a front end mirror; 40. a rear reflector; 41. a rebound seat; 42. a guide bar; 43. a second spring; 44. a wire guide groove; 45. a power line; 46. a circuit board is connected in parallel; 47. an output interface is connected in parallel; 48. a sliding guide station; 49. a conductive plate; 50. a guide rod sleeve; 51. an outer ring of apertures; 52. an inner ring of the aperture; 53. a sheet; 54. an aperture adjusting rod; 55. a front end cover plate; 56. the lens can be adjusted; 57. a focusing mirror.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Detailed Description

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, the present invention provides a solid laser with multiple working media, including four reflective cavities 1, a media conversion wheel 2, an anti-inversion mechanism 3, a media positioning mechanism 4, a laser housing 5, a bottom element 6, a conductive mechanism 7, an aperture mechanism 8, and a light focusing mechanism 9, where the four reflective cavities 1 are all disposed inside the media conversion wheel 2, the media conversion wheel 2 is disposed on the laser housing 5, the laser housing 5 is disposed on the bottom element 6, the conductive mechanism 7 is disposed on the bottom element 6, the anti-inversion mechanism 3 is disposed at one end of the media conversion wheel 2, the media positioning mechanism 4 is disposed at the other end of the media conversion wheel 2, the aperture mechanism 8 is disposed on the bottom element 6, and the light focusing mechanism 9 is disposed on the bottom element 6.

As shown in fig. 3, the reflection cavity 1 includes a reflection housing 10, a medium support 11 is disposed inside the reflection housing 10, a working medium 12 is disposed in the medium support 11, a front cover plate 13 is disposed at one end of the reflection housing 10, a pump lamp holder 14 is disposed at the other end of the reflection housing 10, two pump lamps 15 are disposed on the pump lamp holder 14, a front light outlet 16 is disposed on the front cover plate 13, and a rear light outlet 17 is disposed on the pump lamp holder 14.

As shown in fig. 3 and 4, four cavities 18 are arranged inside the medium conversion wheel 2, a rotating shaft 19 is arranged at the center of the medium conversion wheel 2, a spline head 20 is arranged at one end of the rotating shaft 19, a four-tooth ratchet 21 is arranged at the other end of the rotating shaft 19, a knob 22 is arranged on one side of the four-tooth ratchet 21, which is close to one end of the four-tooth ratchet 21, on the rotating shaft 19, and a working medium 12 of four lasers and a pump lamp 15 are placed on the medium conversion wheel 2 with the four cavities 18, so that a scheme that one laser uses a plurality of working media 12 is realized.

As shown in fig. 4 and 5, the anti-reverse mechanism 3 includes an inner ratchet sleeve 23 disposed at one end of the rotating shaft 19, a steering limiting wheel 24 is disposed inside the inner ratchet sleeve 23, a spline hole 25 is disposed on the steering limiting wheel 24, and a circumferential fixing block 26 is disposed below the inner ratchet sleeve 23.

As shown in fig. 2, 6, and 7, the medium positioning mechanism 4 includes a laser rear cover 27 disposed at the other end of the rotating shaft 19, a telescopic rod jack 28 is disposed above the laser rear cover 27, a telescopic rod 29 is disposed inside the telescopic rod jack 28, a spring stop 30 is disposed on the telescopic rod 29, a first spring 31 is disposed inside the telescopic rod jack 28 and on one side of the spring stop 30, a four-tooth positioning plate 32 is disposed at one end of the telescopic rod 29 away from the telescopic rod jack 28, the inner ratchet sleeve 23 and the steering limiting wheel 24 can enable the medium conversion wheel 2 to rotate in one direction only, and prevent the medium that is not cooled from being reused, and the four-tooth ratchet 21 and the four-tooth positioning plate 32 can assist the medium conversion wheel 2 to position when rotating, so as to prevent the medium from deviating from the working position.

As shown in fig. 8, a rotating wheel placing groove 33 is formed in the laser housing 5, a first rotating shaft seat 34 is disposed at one end, located at the rotating wheel placing groove 33, of the upper portion of the laser housing 5, a second rotating shaft seat 35 is disposed at the other end, located at the rotating wheel placing groove 33, of the upper portion of the laser housing 5, a diaphragm protecting shell 36 is disposed at one end, close to the first rotating shaft seat 34, of the laser housing 5, and an adjusting rod rotating groove 37 is formed in the diaphragm protecting shell 36.

As shown in fig. 9 and 10, the bottom element 6 includes an element guide rail 38, one end of the element guide rail 38 is provided with a front end mirror 39, the other end of the element guide rail 38 is provided with a rear mirror 40, a bounce seat 41 is provided on one side of the rear mirror 40 on the element guide rail 38, a guide rod 42 is provided on the bounce seat 41, a second spring 43 is provided on the guide rod 42, and two wire guide grooves 44 are provided on one end of the element guide rail 38 close to the rear mirror 40.

As shown in fig. 3, fig. 7, fig. 9, and fig. 10, the conductive mechanism 7 includes a power line 45 disposed at one end of the laser rear cover 27, a parallel circuit board 46 is disposed inside the laser rear cover 27, two parallel output interfaces 47 are disposed on the parallel circuit board 46, a sliding guide station 48 is disposed on the component guide rail 38, two conductive plates 49 are disposed on the sliding guide station 48, the conductive plates 49 are all connected to one parallel output interface 47 through a circuit, a guide rod sleeve 50 for the guide rod 42 to pass through is disposed between the two conductive plates 49 on the sliding guide station 48, the sliding guide station 48 can slide backwards when the medium conversion wheel 2 rotates, and supplies power to the pump lamp 15 when the next working medium 12 comes to the working position.

As shown in fig. 8, 11, and 12, the aperture mechanism 8 includes an aperture outer ring 51 disposed inside the aperture protective housing 36, an aperture inner ring 52 is disposed on one side of the aperture outer ring 51, a plurality of blades 53 are disposed on the aperture inner ring 52, an aperture adjusting rod 54 is disposed inside the adjusting rod rotating groove 37 and outside the aperture inner ring 52, the light collecting mechanism 9 includes a front end cover plate 55 disposed on the laser housing 5 and far away from one end of the laser rear cover 27, an adjustable lens 56 is disposed on the front end cover plate 55, and a focusing lens 57 is disposed inside the adjustable lens 56.

When the laser is used specifically, a power line 45 of the laser is connected with a numerical control switch power supply, the power supply supplies power to two pump lamps 15 through a parallel circuit board 46 and a conductive plate 49 on a sliding conductive station 48, after a medium is used for a certain period of time, the knob 22 is rotated to enable the medium conversion wheel 2 to rotate, when the medium conversion wheel 2 rotates, the inner ratchet sleeve 23 and the steering limiting wheel 24 enable the medium conversion wheel 2 to rotate only in one direction, the uncooled medium is prevented from being used again, the four-tooth positioning disc 32 and the four-tooth ratchet 21 can be used for positioning a single medium when the medium conversion wheel 2 rotates, the front end reflector 39 and the rear reflector 40 are used for reflecting and emitting laser, the diaphragm mechanism 8 is used for adjusting the radius of a light beam, and the adjustable lens 56 is used for controlling the convergence and divergence degree of the light beam.

It should be noted that, in this document, relational terms such as first and second, and the like are 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 apparatus 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 apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A solid state laser of a plurality of working media, characterized by: the device comprises four reflecting cavities (1), a medium conversion wheel (2), an anti-reversion mechanism (3), a medium positioning mechanism (4), a laser shell (5), a bottom element (6), a conducting mechanism (7), an aperture mechanism (8) and a light-gathering mechanism (9), wherein the four reflecting cavities (1) are all arranged inside the medium conversion wheel (2), the medium conversion wheel (2) is arranged on the laser shell (5), the laser shell (5) is arranged on the bottom element (6), the conducting mechanism (7) is arranged on the bottom element (6), the anti-reversion mechanism (3) is arranged at one end of the medium conversion wheel (2), the medium positioning mechanism (4) is arranged at the other end of the medium conversion wheel (2), the aperture mechanism (8) is arranged on the bottom element (6), the light-gathering mechanism (9) is arranged on the bottom element (6), the reflecting cavities (1) comprise reflecting shells (10), a medium support (11) is arranged inside the reflecting shells (10), a working pump shell (12) is arranged in the medium support (11), a pumping lamp holder (14) is arranged at one end of the medium support (14), and two reflecting lamp holders (14) are arranged on the front of the pumping lamp holder (14), the improved pump lamp is characterized in that a front cover plate (13) is provided with a front light outlet (16), a rear light outlet (17) is arranged on a pump lamp holder (14), four cavities (18) are arranged inside the medium conversion wheel (2), a rotating shaft (19) is arranged at the center of the medium conversion wheel (2), a spline head (20) is arranged at one end of the rotating shaft (19), a four-tooth ratchet wheel (21) is arranged at the other end of the rotating shaft (19), a knob (22) is arranged at one side, close to the four-tooth ratchet wheel (21), of the rotating shaft (19) and located on the four-tooth ratchet wheel (21), the anti-reversion mechanism (3) comprises an inner ratchet sleeve (23) arranged at one end of the rotating shaft (19), the inner ratchet sleeve (23) is internally provided with a steering limiting wheel (24), the steering limiting wheel (24) is provided with a spline hole (25), a circumferential fixed clamping block (26) is arranged below the inner ratchet sleeve (23), the medium positioning mechanism (4) comprises a laser rear cover (27) arranged at the other end of the rotating shaft (19), a telescopic rod jack (28) is arranged above the laser rear cover (27), a telescopic rod (29) is arranged inside the telescopic rod jack (28), a spring blocking piece (30) is arranged on the telescopic rod (29), a first spring (31) is arranged on one side of the spring blocking piece (30) and positioned inside the telescopic rod jack (28), telescopic link (29) are kept away from telescopic link jack (28) one end and are equipped with four tooth positioning disks (32), be equipped with runner standing groove (33) on laser instrument shell (5), laser instrument shell (5) top is located runner standing groove (33) one end and is equipped with first pivot seat (34), laser instrument shell (5) top is located runner standing groove (33) the other end and is equipped with second pivot seat (35), laser instrument shell (5) are close to first pivot seat (34) one end and are equipped with light ring protective housing (36), be equipped with on light ring protective housing (36) and adjust pole rotating groove (37).

2. A solid state laser of multiple working media as claimed in claim 1 wherein: the bottom component (6) comprises a component guide rail (38), a front end reflector (39) is arranged at one end of the component guide rail (38), a rear reflector (40) is arranged at the other end of the component guide rail (38), a rebound seat (41) is arranged on one side, located on the rear reflector (40), of the component guide rail (38), a guide rod (42) is arranged on the rebound seat (41), a second spring (43) is arranged on the guide rod (42), and two wire guide grooves (44) are formed in one end, close to the rear reflector (40), of the component guide rail (38).

3. A solid state laser of multiple working media as claimed in claim 2, wherein: electrically conductive mechanism (7) are including setting up power cord (45) of lid (27) one end behind the laser instrument, lid (27) inside is equipped with parallel circuit board (46) behind the laser instrument, be equipped with two parallelly connected output interface (47) on parallel circuit board (46), be equipped with on component guide rail (38) and slide and lead radio station (48), slide and lead and be equipped with two conductive plates (49) on radio station (48), pass through the line connection between conductive plate (49) all and a parallelly connected output interface (47), it is equipped with guide rod cover (50) that supply guide arm (42) to run through to slide to lead to lie in between two conductive plates (49) on radio station (48).

4. A solid state laser of multiple working media according to claim 3, wherein: the diaphragm mechanism (8) comprises a diaphragm outer ring (51) arranged inside a diaphragm protective shell (36), a diaphragm inner ring (52) is arranged on one side of the diaphragm outer ring (51), a plurality of blades (53) are arranged on the diaphragm inner ring (52), and a diaphragm adjusting rod (54) is arranged inside an adjusting rod rotating groove (37) and on the outer side of the diaphragm inner ring (52).

5. A solid state laser having a plurality of working media as claimed in claim 4, wherein: the light condensing mechanism (9) comprises a front end cover plate (55) which is arranged on the laser shell (5) and is far away from one end of the laser rear cover (27), an adjustable lens (56) is arranged on the front end cover plate (55), and a focusing lens (57) is arranged inside the adjustable lens (56).