CN216083290U

CN216083290U - Special pixel lens for laser system

Info

Publication number: CN216083290U
Application number: CN202122545292.5U
Authority: CN
Inventors: 刘娜; 岑倩
Original assignee: Sichuan Xiwu Laser Technology Co ltd
Current assignee: Sichuan Xiwu Laser Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-03-18
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a pixel lens special for a laser system, which relates to the technical field of laser shaping devices and comprises a lens cone, wherein the inner side of the lens cone is connected with a diffractive optical element, a main shell cover is fixedly connected onto the lens cone, an avoidance hole coaxial with the lens cone is formed in the main shell cover, a lens changing turntable is arranged on the inner side of the main shell cover, a plurality of fixing holes matched with the avoidance hole are formed in the lens changing turntable, a lens is fixedly connected into the fixing holes, and an adjusting mechanism is connected between the lens changing turntable and the main shell cover. According to the utility model, through the arrangement of the lens changing turntable, the plurality of lenses with different focal lengths and the connection of the adjusting mechanism between the lens changing turntable and the main shell cover, an experimenter can rotate the lens changing turntable through the adjusting mechanism, so that the experimenter can select the lenses with different focal lengths to be positioned at the avoidance hole for experiment according to actual needs, the convenience of the experiment is improved, and the problem that the focal length of the focusing lens is inconvenient to adjust according to the needs of users in the prior art is solved.

Description

Special pixel lens for laser system

Technical Field

The utility model relates to the technical field of laser shaping devices, in particular to a pixel lens special for a laser system.

Background

The pixel lens is a laser shaping device, output light spots after shaping are regularly arranged pixel points, the pixel lens is named as the pixel lens, and is also named as a honeycomb mirror because the appearance of the pixel lens is similar to that of a honeycomb, and the pixel lens is a novel laser shaping device designed based on binary optics, namely diffraction optics. Binary optics is a new optical branch developed based on the light wave diffraction theory, and is a leading-edge subject formed by mutual penetration and intersection of optics and microelectronic technologies. The diffraction optical element is a diffraction optical element with pure phase and high diffraction efficiency formed by etching two or more steps or even a relief structure in a connection shape on a substrate or the surface of a traditional optical element by using a computer aided design technology and various micro-machining processes. The optical element has the characteristics of small volume, light weight, high diffraction efficiency, more design freedom, wide material selectivity, unique dispersion performance and the like, can realize the functions of arraying, integrating, random wave surface conversion and the like which are difficult to complete by the traditional optical device, and has great influence on information capture, extraction, measurement, control and the like based on the optical element.

In the prior art, the three-dimensional energy distribution condition of an output light spot is obtained by an input light spot through a diffraction optical device, and in the test process, the focal length of a focusing lens needs to be adjusted in order to change the imaging distance and the size of the light spot of the output light spot.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special pixel lens for a laser system, and aims to solve the problem that the focal length of a focusing lens is inconvenient to adjust according to the needs of a user in the prior art, which is provided by the background art.

In order to achieve the above purpose, the present application provides the following technical solutions: the special pixel lens for the laser system comprises a lens barrel, wherein the inner side of the lens barrel is connected with a diffractive optical element, a main shell cover is fixedly connected onto the lens barrel, a avoidance hole coaxial with the lens barrel is formed in the main shell cover, a lens changing turntable is arranged on the inner side of the main shell cover, a plurality of fixing holes matched with the avoidance hole are formed in the lens changing turntable, the plurality of fixing holes are arrayed on the lens changing turntable in a circumferential mode, a lens is fixedly connected into the fixing holes, the focal lengths of the plurality of lenses are different, and an adjusting mechanism and a limiting mechanism are connected between the lens changing turntable and the main shell cover.

Preferably, the adjusting mechanism comprises a driven gear and a driving gear, the driven gear is fixedly connected with the circle center of the mirror changing turntable through a first rotating shaft, the first rotating shaft movably penetrates through the main housing cover, and the driving gear is rotatably connected to the outer wall of the main housing cover through a second rotating shaft and is meshed with the driven gear.

Preferably, the diameter of the driving gear is larger than that of the driven gear, an auxiliary housing cover is fixedly connected to the outer wall of the main housing cover, the auxiliary housing cover is arranged on the outer sides of the driven gear and the driving gear, and an operation knob movably penetrating through the auxiliary housing cover is fixedly connected to the circle center of the driving gear.

Preferably, stop gear includes a plurality of spacing subassemblies, spacing subassembly includes compression spring one and stopper, the side of trading the mirror carousel be provided with a plurality ofly with the stopper looks adaptation dodge the groove, and a plurality ofly dodge the groove and correspond with a plurality of fixed orificess respectively, the stopper pass through compression spring one with dodge the interior bottom end fixed connection in groove, the side of main clamshell is provided with the spacing hole with stopper looks adaptation.

Preferably, a T-shaped pressing block is connected in the limiting hole in a sliding mode, and a compression spring II is fixedly connected between the T-shaped pressing block and the outer wall of the main shell cover.

Preferably, a cleaning layer is fixedly connected to the inner wall of the main housing, and the cleaning layer is in contact with the lens.

In conclusion, the technical effects and advantages of the utility model are as follows:

1. according to the utility model, through the arrangement of the lens changing turntable, the plurality of lenses with different focal lengths and the connection of the adjusting mechanism between the lens changing turntable and the main shell cover, an experimenter can rotate the driving gear through the operation knob, the driving gear drives the driven gear to rotate, the driven gear drives the lens changing turntable to rotate, and the experimenter can select the lenses with different focal lengths to be positioned at the avoidance hole to carry out an experiment according to actual needs, so that the convenience of the experiment is improved, and the problem that the focal length of the focusing lens is inconvenient to adjust according to the needs of users in the prior art is solved.

2. According to the utility model, through the limiting mechanism connected between the mirror changing turntable and the main shell cover, when the mirror changing turntable is rotated until the limiting block reaches the limiting hole, the limiting block is clamped into the limiting hole, the mirror changing turntable is limited, and at the moment, the mirror changing turntable can not continuously rotate, so that the positioning effect is realized, the lens switched each time can be ensured to be coaxial with the diffractive optical element, and through the cleaning layer fixedly connected to the inner wall of the main shell cover and in contact with the lens, the lens is in contact with the surface of the cleaning layer in the rotating process of the mirror changing turntable, so that the cleaning layer is utilized to wipe stains on the surface of the lens, and the cleanness of the lens is kept.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a perspective sectional view at an adjustment mechanism in the present embodiment;

FIG. 2 is a schematic structural diagram of a mirror changing turntable according to the present embodiment;

fig. 3 is a perspective sectional view of the position restricting mechanism in the present embodiment;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

fig. 5 is a schematic view of the entire structure in this embodiment.

In the figure: 1. a lens barrel; 2. a main housing shell; 3. avoiding holes; 4. a mirror changing turntable; 5. a lens; 6. a driven gear; 7. a driving gear; 8. an operation knob; 9. a sub-housing cover; 10. an avoidance groove; 11. a first compression spring; 12. a limiting block; 13. a limiting hole; 14. a T-shaped pressing block; 15. a second compression spring; 16. a cleaning layer; 17. and (7) fixing holes.

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.

Example (b): referring to fig. 1-5, a pixel lens dedicated for a laser system includes a lens barrel 1 having a diffractive optical element connected to an inner side thereof, a main housing 2 fixedly connected to the lens barrel 1, a avoiding hole 3 coaxial with the lens barrel 1 provided on the main housing 2, a lens-changing turntable 4 provided on an inner side of the main housing 2, a plurality of fixing holes 17 matched with the avoiding hole 3 provided on the lens-changing turntable 4, and a plurality of fixing holes 17 circumferentially arrayed on the lens-changing turntable 4, a lens 5 fixedly connected to the fixing holes 17, and focal lengths of the plurality of lenses 5 being different from each other, which can be selected by an experimenter according to actual needs.

Be connected with adjustment mechanism and stop gear between lens change carousel 4 and the main housing 2, experimenter accessible adjustment mechanism rotates lens change carousel 4 to make the lens 5 of different focuses be located and dodge hole 3 department and experiment, the stop gear that sets up can guarantee that the lens 5 of switching at every turn can be coaxial with the diffraction optical element.

Based on above-mentioned structure, through the lens change carousel 4 that sets up, lens 5 that a plurality of focuses are different and connect adjustment mechanism and stop gear between lens change carousel 4 and main housing cover 2, experimenter accessible adjustment mechanism rotates lens change carousel 4, the lens 5 that supplies the experimenter to select different focuses according to actual need is located and dodges hole 3 and experiments, stop gear that sets up can guarantee that lens 5 that switches at every turn can be coaxial with diffraction optical element, the inconvenient problem of adjusting focusing lens's focus according to user's needs among the prior art has been improved.

It should be further noted that the above structures are all applied to 1064nm laser systems.

In this embodiment, combine fig. 1, 2 to show, adjustment mechanism includes driven gear 6 and driving gear 7, driven gear 6 is through pivot one and trade centre of a circle department fixed connection of mirror carousel 4, main clamshell 2 is run through in the activity of pivot one, driving gear 7 rotates through pivot two and connects on the outer wall of main clamshell 2 and mesh mutually with driven gear 6, drive driven gear 6 through driving gear 7 drive rotates, driven gear 6 takes and trades mirror carousel 4 and rotates, the lens 5 that supplies the experimenter to select different focuses according to actual need is located to dodge hole 3 and experiments.

In this embodiment, combine fig. 1, 2, 3 to show, the diameter of driving gear 7 is greater than driven gear 6's diameter, fixedly connected with subshell cover 9 on the outer wall of main shell cover 2, the outside of driven gear 6 and driving gear 7 is located to subshell cover 9 cover, the activity of the centre of a circle department fixedly connected with of driving gear 7 runs through the operation knob 8 of subshell cover 9, experimenter accessible operation knob 8 rotates driving gear 7, the diameter of driving gear 7 is greater than driven gear 6's diameter and can accelerates the slew velocity of changing mirror carousel 4, be convenient for quick adjustment.

In this embodiment, combine fig. 2, 3, 4 to show, stop gear includes a plurality of spacing subassemblies, spacing subassembly includes compression spring 11 and stopper 12, the side of lens change carousel 4 is provided with a plurality of dodge groove 10 with stopper 12 looks adaptation, and a plurality of groove 10 of dodging correspond with a plurality of fixed orificess 17 respectively, stopper 12 is through compression spring 11 and the interior bottom end fixed connection who dodges groove 10, the side of main casing cover 2 is provided with the spacing hole 13 with stopper 12 looks adaptation, when rotating lens change carousel 4 to stopper 12 arrival spacing hole 13 department, stopper 12 card is gone into spacing hole 13, lens change carousel 4 is injectd, can't continue to rotate this moment, realize the positioning action, lens 5 of guaranteeing to switch each time can be coaxial with the diffractive optical element.

In this embodiment, as shown in fig. 3 and 4, a T-shaped pressing block 14 is slidably connected in the limiting hole 13, a second compression spring 15 is fixedly connected between the T-shaped pressing block 14 and the outer wall of the main housing 2, and when the lens 5 needs to be switched, the T-shaped pressing block 14 only needs to be manually pressed, and the T-shaped pressing block 14 pushes the limiting block 12 away from the limiting hole 13, so that the mirror changing turntable 4 can continue to rotate.

In this embodiment, as shown in fig. 3, a cleaning layer 16 is fixedly connected to an inner wall of the main housing 2, the cleaning layer 16 contacts with the lens 5, and the lens 5 contacts with a surface of the cleaning layer 16 during rotation of the mirror changing turntable 4, so that the cleaning layer 16 is used to wipe off stains on the surface of the lens 5, and the lens 5 is kept clean.

The working principle of the utility model is as follows: through the lens carousel 4 that changes that sets up, the different lens 5 of a plurality of focuses and change and be connected adjustment mechanism between lens carousel 4 and main housing cover 2, experimenter accessible operation knob 8 rotates driving gear 7, utilize driving gear 7 drive driven gear 6 to rotate, driven gear 6 takes lens carousel 4 rotations of changing, the lens 5 that supplies the experimenter to select different focuses according to actual need is located and dodges hole 3 and tests, the convenient degree of experiment has been improved, the inconvenient problem of the focus of adjusting focusing lens according to user's needs among the prior art has been improved.

Through the stop gear who is connected between lens change carousel 4 and main casing cover 2, when rotating lens change carousel 4 to stopper 12 and reaching spacing hole 13 department, stopper 12 card is gone into in spacing hole 13, lens change carousel 4 is injectd, can't continue to rotate this moment, realize the locate function, lens 5 that guarantees to switch each time can be coaxial with diffractive optical element, through fixed connection cleaning layer 16 on the inner wall of main casing cover 2, and cleaning layer 16 contacts with lens 5, lens 5 contacts with the surface of cleaning layer 16 along with lens change carousel 4 pivoted in-process, thereby utilize cleaning layer 16 to erase the spot on lens 5 surface, keep the cleanness of lens 5.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The special pixel lens for the laser system comprises a lens barrel (1) with a diffraction optical element connected to the inner side, and is characterized in that: fixedly connected with main clamshell (2) on lens cone (1), be provided with on main clamshell (2) and dodge hole (3) coaxial with lens cone (1), the inboard of main clamshell (2) is provided with trades mirror carousel (4), be provided with on the trades mirror carousel (4) a plurality of and dodge fixed orifices (17) of hole (3) looks adaptation, and a plurality of fixed orifices (17) circumference array on trading mirror carousel (4), fixedly connected with lens (5) in fixed orifices (17), and the focus diverse of a plurality of lens (5), be connected with adjustment mechanism and stop gear between changeing mirror carousel (4) and main clamshell (2).

2. The laser system dedicated pixel lens of claim 1, wherein: the adjusting mechanism comprises a driven gear (6) and a driving gear (7), the driven gear (6) is fixedly connected with the circle center of the mirror changing turntable (4) through a first rotating shaft, the first rotating shaft penetrates through the main housing cover (2), and the driving gear (7) is connected to the outer wall of the main housing cover (2) through a second rotating shaft in a rotating mode and meshed with the driven gear (6).

3. The laser system dedicated pixel lens of claim 2, wherein: the diameter of driving gear (7) is greater than the diameter of driven gear (6), fixedly connected with pair clamshell (9) on the outer wall of main clamshell (2), the outside of driven gear (6) and driving gear (7) is located to vice clamshell (9) cover, the operation knob (8) of vice clamshell (9) are run through in the activity of the centre of a circle department fixedly connected with activity of driving gear (7).

4. The laser system dedicated pixel lens of claim 1, wherein: stop gear includes a plurality of spacing subassemblies, spacing subassembly includes compression spring (11) and stopper (12), the side of trading mirror carousel (4) is provided with a plurality of groove (10) of dodging with stopper (12) looks adaptation, and a plurality of groove (10) of dodging are corresponding with a plurality of fixed orificess (17) respectively, stopper (12) through compression spring (11) with dodge the inner bottom fixed connection in groove (10), the side of main clamshell (2) is provided with spacing hole (13) with stopper (12) looks adaptation.

5. The laser-system-dedicated pixel lens according to claim 4, wherein: a T-shaped pressing block (14) is connected in the limiting hole (13) in a sliding mode, and a second compression spring (15) is fixedly connected between the T-shaped pressing block (14) and the outer wall of the main shell cover (2).

6. The laser system dedicated pixel lens of claim 1, wherein: the inner wall of the main shell cover (2) is fixedly connected with a cleaning layer (16), and the cleaning layer (16) is in contact with the lens (5).