CN208239736U - A kind of beam expanding lens for correcting optical quality - Google Patents
A kind of beam expanding lens for correcting optical quality Download PDFInfo
- Publication number
- CN208239736U CN208239736U CN201821181564.XU CN201821181564U CN208239736U CN 208239736 U CN208239736 U CN 208239736U CN 201821181564 U CN201821181564 U CN 201821181564U CN 208239736 U CN208239736 U CN 208239736U
- Authority
- CN
- China
- Prior art keywords
- lens barrel
- lens
- body tube
- lens group
- amendment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model relates to a kind of beam expanding lens for correcting optical quality, comprising: expand lens barrel, convex lens group, concavees lens group, amendment lens barrel and cylindrical mirror；The one end for expanding lens barrel is fixedly connected with convex lens group, and the other end for expanding lens barrel is fixedly connected with concavees lens group；One end of amendment lens barrel is fixedly connected with cylindrical mirror, and the other end for correcting lens barrel is open and be detachably connected on and expand one end that lens barrel is fixed with concavees lens group；Pass through the utility model, obtain higher laser-quality, by way of first changing optical quality and then adjusting the angle of divergence and expanded light beam diameter again, the amendment to hot spot is realized, dispersion angle can be adjusted, realize the continuity of the adjustment of beam divergence angle, to obtain, optical quality is preferable, the good laser beam of collimation, while the beam expanding lens structure of the utility model is simple, and processing cost is low, turn to match flexibly, it is easy to maintain.
Description
Technical field
The utility model relates to beam expanding lens field more particularly to a kind of beam expanding lens for correcting optical quality.
Background technique
The wide range of applications of laser, such as: laser medicine, laser burn quarter, laser welding, laser cutting, laser
Detection and metering, laser radar, laser weapon etc.；Under normal circumstances, required laser beam will preferably mode, and from swashing
The light beam general diameter of light device output is small, has the angle of divergence, spatial model is poor, needs in actual use according to requirements
Adjusted, when being processed especially with ultraviolet laser, optical quality is more demanding.
Expanding is to adjust the most common component of beam quality, and it is straight to be merely able to change laser beam for common beam expanding lens in the market
Diameter and the angle of divergence cannot change facular model；Expanded there are many kinds of lens devices currently on the market, be substantially solve the angle of divergence,
The problem of change expands multiple, generally only two groups of eyeglasses, adjust eyeglass distance by mechanical structure and reach the angle of divergence or multiple
Change；Existing expand device the problem is that: cannot effectively improve beam quality (i.e. M2Value)；Work as M2When > 1.2, warp
The oval or date core shaped shape for expanding rear hot spot is crossed, processing of the hot spot in laser processing after line focus to operation material
Effect is undesirable；Lack it is a kind of expand first change optical quality after adjust the beam expanding lens of the angle of divergence and expanded light beam diameter again.
Utility model content
Technical problem to be solved in the utility model is in view of the deficiencies of the prior art, to provide a kind of amendment optical quality
Beam expanding lens, at least one to solve the above technical problems.
The technical solution that the utility model solves above-mentioned technical problem is as follows, a kind of beam expanding lens for correcting optical quality, packet
It includes: expanding lens barrel, convex lens group, concavees lens group, amendment lens barrel and cylindrical mirror；The one end for expanding lens barrel is fixedly connected with convex lens
Group, the other end for expanding lens barrel are fixedly connected with concavees lens group；One end of amendment lens barrel is fixedly connected with cylindrical mirror, corrects lens barrel
The other end it is open and be detachably connected on and expand one end that lens barrel is fixed with concavees lens group.
The beneficial effects of the utility model are: using the angle of divergence and expanded light beam diameter is adjusted again after first changing optical quality
Beam expanding lens principle, realize first to laser carry out quality amendment；Lens barrel is corrected by setting, is realized by correcting lens barrel
The shaft portion of the oval hot spot of laser beam effectively compressed by cylindrical mirror and stub portion is inconvenient, from amendment lens barrel
The light beam of other side outgoing changes spatial model, and the light beam being corrected passes sequentially through concavees lens group again and convex lens group is expanded
Beam, the spot diameter after expanding becomes larger, the angle of divergence reduces, and obtains the good laser beam of collimation required for optical manufacturing；It is logical
One end setting crossed in amendment lens barrel expands lens barrel, realizes the revised laser beam of optical quality successively passing through concavees lens group
The change of beam diameter and the change of beam divergence angle are realized with convex lens group；By the utility model, realize to light
The amendment of spot can adjust dispersion angle, realize the continuity of the adjustment of beam divergence angle, the beam expanding lens knot of the utility model
Structure is simple, and processing cost is low, turns to match flexibly, easy to maintain；The component for correcting lens barrel and cylindrical mirror composition is disassembled can
Realize that routine expands function, versatility is more preferable.
Based on the above technical solution, the utility model can also do following improvement.
Further, expanding lens barrel includes body tube and sliding lens barrel；One end of sliding lens barrel is fixedly connected with convex lens group,
It slides the other end opening of lens barrel and is set in one end of body tube, be slidably connected between body tube and sliding lens barrel, body tube
The other end be fixedly connected with concavees lens group；Amendment lens barrel open end be set in body tube be fixed with concavees lens group one end and
It is detachably connected therewith.
Using above-mentioned further scheme the utility model has the advantages that being set as the body tube being slidably connected and cunning by the way that lens barrel will be expanded
Moving lens barrel, during sliding lens barrel is relative to body tube linear movement, between realizing between concavees lens group and convex lens group
Away from can continuously adjust, so that it is whole to realize being continuously adjusted for beam divergence angle；Consolidated by the way that lens barrel setting will be corrected in body tube
Surely there is one end of concavees lens group, first optical quality is modified, so that the stability during enhancing laser beam expanding, is improved
The collimation of light beam.
Further, cylindrical mirror includes at least one bent moon cylindrical mirror.
Using above-mentioned further scheme the utility model has the advantages that by setting at least one bent moon cylindrical mirror for cylindrical mirror, in fact
Show and effectively compressed the long axis of the hot spot of ellipse and stub portion is inconvenient, has realized the amendment to optical quality,
It is distributed via the beam energy of bent moon cylindrical mirror and circle is changed to by original ellipse, meeting Gaussian beam can shape after focusing
At circular shaped laser spot, the light beam after correcting shaping enters focus lamp, focuses on workpiece, and laser energy is more concentrated, added
Work lines are thinner, realize and process to the high-precision of material；By setting at least one for the quantity of bent moon cylindrical mirror, realizing
On the basis of laser beam correcting, the adaptability to different light beams is improved, the precision calibration requirements for different occasions of having had a full house.
Further, the peripheral side of body tube is provided with annular protrusion, and the side of annular protrusion is connected to the spacious of amendment lens barrel
Mouth end.
Using above-mentioned further scheme the utility model has the advantages that by the way that annular protrusion is arranged on the outside of body tube, on the one hand to repairing
Installation between positive lens barrel and body tube provides the plane of positioning datum, has body tube and the axis for correcting lens barrel preferably
Concentricity；On the other hand, it realizes to sliding lens barrel along the limit in main barrel axis direction, avoids because body tube is sliding
Too long caused convex lens group of stretching in lens barrel falls off；In addition, also realizing sliding lens barrel and correcting the separately positioned of lens barrel, keep away
The movement interference of the two is exempted from；The hand generated when adjusting body tube and sliding relative position between lens barrel is also reduced to primary mirror
The friction damage of cylinder and amendment lens barrel.
Further, it slides and offers location hole on the barrel of lens barrel, positioning hole is threaded with positioning bolt；Position spiral shell
When bolt is connected on body tube, sliding lens barrel is static with respect to body tube.
Using above-mentioned further scheme the utility model has the advantages that by the way that location hole is arranged on sliding lens barrel, and in location hole
It is threaded with positioning bolt, the locking to position between the body tube adjusted and sliding lens barrel is realized, reduces because of master
The influence for the change to the angle of divergence adjusted that relative movement generates between lens barrel and sliding lens barrel improves light beam hair
Dissipate the stability at angle.
Further, the open end for correcting lens barrel is provided with benchmark flange face, and benchmark flange face is circular ring shape, benchmark flange face
Inside amendment lens barrel and perpendicular to the axis of amendment lens barrel, benchmark flange face is connected to body tube and is fixed with concavees lens group
One end.
Using above-mentioned further scheme the utility model has the advantages that by the way that benchmark flange face is arranged in amendment lens barrel, it ensure that and repair
Coaxial precision of the positive lens barrel relatively with body tube, reduces because of light beam caused by deflecting between amendment lens barrel and body tube because of axis
It corrects quality to be deteriorated, and then reduces the influence to the laser beam spot quality after expanding.
Further, the inner sidewall of body tube include along the sequentially connected inner sunken face of its axis, cylindrical surface and convex outward,
Cylindrical surface is tangent with inner sunken face and convex outward respectively, and the open end of body tube, convex outward setting is arranged in inner sunken face
One end of concave surface microscope group is fixed in body tube.
Using above-mentioned further scheme the utility model has the advantages that by setting sequentially connected interior concave curved for body tube inner wall
Face, cylindrical surface and convex outward reduce influence of the body tube inner wall to beam spread process, improve the stabilization expanded
Property, the laser beam that optical quality is good and collimation is good can be obtained.
Further, amendment lens barrel is threaded on body tube.
Using above-mentioned further scheme the utility model has the advantages that by that will correct between lens barrel and body tube using threaded connection
On the one hand removably makes to fix more consolidating between body tube and amendment lens barrel, lens barrel will be corrected by the other hand realizing
It is easily dismantled from body tube；It is threadedly coupled bonding strength with higher simultaneously, processing and manufacturing difficulty is low, connective stability
It is good.
Further, convex lens group includes at least one convex lens.
Using above-mentioned further scheme the utility model has the advantages that side by the way that convex lens group to be set as being made of multiple convex lens
Formula realizes the modularization of convex lens group, and corresponding module can be changed quickly to adapt to different beam qualities and expand multiplying power
It is required that processing between multiple convex lens in convex lens group through optical centering, guarantee light shaft coaxle degree and the depth of parallelism, to improve
The precision of optical system.
Further, concavees lens group includes at least one concave lens.
Using above-mentioned further scheme the utility model has the advantages that side by the way that concavees lens group to be set as being made of multiple concavees lens
Formula realizes the modularization of concavees lens group, and corresponding module can be changed quickly to adapt to different beam qualities and expand multiplying power
It is required that processing between multiple concavees lens in concavees lens group through optical centering, guarantee light shaft coaxle degree and the depth of parallelism, to improve
The precision of optical system.
Detailed description of the invention
Fig. 1 is a kind of structure sectional view of the beam expanding lens of amendment optical quality of the utility model；
Fig. 2 is a kind of structure chart of the beam expanding lens of amendment optical quality of the utility model.
In attached drawing, parts list represented by the reference numerals are as follows:
1, body tube, 2, sliding lens barrel, 3, convex lens group, 4, concavees lens group, 5, amendment lens barrel, 6, cylindrical mirror, 7, benchmark
Flange face, 8, annular protrusion, 9, location hole, 10, positioning bolt, 11, inner sunken face, 12, cylindrical surface, 13, convex outward.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As depicted in figs. 1 and 2, the beam expanding lens of one of the present embodiment amendment optical quality, comprising: expand lens barrel, convex
Lens group 3, concavees lens group 4, amendment lens barrel 5 and cylindrical mirror 6；The one end for expanding lens barrel is fixedly connected with convex lens group 3, beam expanding lens
The other end of cylinder is fixedly connected with concavees lens group 4；One end of amendment lens barrel 5 is fixedly connected with cylindrical mirror 6, corrects the another of lens barrel 5
It open at one end and is detachably connected on and expands one end that lens barrel is fixed with concavees lens group 4.
Specifically, expanding lens barrel is tubular structure, concavees lens group 4 is one or more concavees lens groups 4 into concavees lens group 4
Either pass through one end that clamping structure is fixed on lens barrel in one end of lens barrel by adhesive bonding；Convex lens group 3 is
One or more convex lens groups 3 are at convex lens group 3 either passes through clamping structure card in one end of lens barrel by adhesive bonding
The other end for being fixed on lens barrel is connect, amendment lens barrel 5 is the round tube shape structure of intermediate perforation, corrects lens barrel 5 and expands between lens barrel
Detachable connection method be threadedly coupled or shackle member clamping in any one, cylindrical mirror 6 is existed by adhesive bonding
It corrects one end of lens barrel 5 or is fixed on amendment lens barrel 5 by clamping structure and bolt；Preferably, specific real at one
It applies in example, convex lens is the convex lens that one end protrusion other end is plane, and concavees lens are that the recessed other end in one end is the recessed of plane
Lens, the planar ends of concavees lens and the planar ends face setting of convex lens, and direction expands in the inner chambers of lens barrel, it is recessed
Cylindrical mirror 6 on the recessed end face face amendment lens barrel 5 of mirror is arranged, and the projecting surface direction of convex lens expands the outside of lens barrel
To setting.
The operating process of the present embodiment: amendment lens barrel 5 being mounted on and expands the one end for being provided with concavees lens group 4 on lens barrel,
Laser beam is injected via the cylindrical mirror 6 on amendment lens barrel 5, becomes round light via ellipse light spot after the effect of amendment lens barrel 5
Spot, then revised laser beam realizes spot diameter and becomes larger via the concavees lens group 4 and convex lens group 3 that expand on lens barrel
Reduce with the angle of divergence, to export the good laser beam of collimation required for optical manufacturing.
The beneficial effect of the present embodiment is: using and adjusts the angle of divergence and expanded light beam diameter again after first changing optical quality
The principle of beam expanding lens realizes and first carries out quality amendment to laser；Lens barrel 5 is corrected by setting, is realized by correcting lens barrel
The shaft portion of the oval hot spot of 5 laser beam is effectively compressed by cylindrical mirror 6 and stub portion is inconvenient, from amendment
The light beam of 5 other side of lens barrel outgoing changes spatial model, and the light beam being corrected passes sequentially through concavees lens group 4 and convex lens group again
3 are expanded, and the spot diameter after expanding becomes larger, the angle of divergence reduces, and it is good sharp to obtain collimation required for optical manufacturing
Light beam；Lens barrel is expanded by one end setting in amendment lens barrel 5, realizes and successively passes through the revised laser beam of optical quality
Concavees lens group 4 and convex lens group 3 realize the change of beam diameter and the change of beam divergence angle；Through this embodiment, real
Show the amendment to hot spot, dispersion angle can be adjusted, realizes the continuity of the adjustment of beam divergence angle, the expansion of the present embodiment
Beam mirror structure is simple, and processing cost is low, turns to match flexibly, easy to maintain；The component that lens barrel 5 and cylindrical mirror 6 form will be corrected to tear open
It unloads achievable routine down and expands function, versatility is more preferable.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments, beam expanding lens
Cylinder includes body tube 1 and sliding lens barrel 2；One end of sliding lens barrel 2 is fixedly connected with convex lens group 3, slides the other end of lens barrel 2
One end that is open and being set in body tube 1, is slidably connected, the other end of body tube 1 is fixed between body tube 1 and sliding lens barrel 2
It is connected with concavees lens group 4；The open end of amendment lens barrel 5 is set in body tube 1 and is fixed with one end of concavees lens group 4 and removable therewith
Unload connection.
Specifically, the detachable connection method between body tube 1 and sliding lens barrel 2 is to be threadedly coupled either clamping structure
One of clamping.
Using above-described embodiment the utility model has the advantages that being set as the body tube 1 being slidably connected and sliding by the way that lens barrel will be expanded
Lens barrel 2 realizes between concavees lens group 4 and convex lens group 3 during sliding lens barrel 2 moves linearly relative to body tube 1
Spacing can be adjusted continuously, so that it is whole to realize being continuously adjusted for beam divergence angle；It is arranged by the way that lens barrel 5 will be corrected in body tube
1 is fixed with one end of concavees lens group 4, is first modified to optical quality, thus the stability during enhancing laser beam expanding,
Improve the collimation of light beam.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments, cylindrical mirror 6
Including at least one bent moon cylindrical mirror.
Specifically, a few bent moon cylindrical mirror optical axis is identical and is arranged in parallel, cylindrical mirror 6 is non-spherical lens, Ke Yiyou
Effect reduces spherical aberration and color difference, and the amendment to optical quality is realized using bent moon cylindrical mirror 6, has more preferably correction effect；This
Outside, in other optional embodiments, cylindrical mirror 6 can also be that piano convex cylindrical lens, plano-concave cylindrical lens, biconvex cylinder are saturating
Mirror, concave-concave cylinder, column hand over any one in cylindrical mirror 6 and heteromorpha cylindrical lens, can be according to actual optical quality
It precision and is selected with circularity.
Using above-described embodiment the utility model has the advantages that by setting at least one bent moon cylindrical mirror 6 for cylindrical mirror 6, realize
The long axis of the hot spot of ellipse is effectively compressed and stub portion is inconvenient, realizes the amendment to optical quality, warp
It is distributed by the beam energy of bent moon cylindrical mirror 6 and circle is changed to by original ellipse, meeting Gaussian beam can shape after focusing
At circular shaped laser spot, the light beam after correcting shaping enters focus lamp, focuses on workpiece, and laser energy is more concentrated, added
Work lines are thinner, realize and process to the high-precision of material；By setting at least one for the quantity of bent moon cylindrical mirror 6, in reality
On the basis of existing laser beam correcting, the adaptability to different light beams is improved, the precision calibration requirements for different occasions of having had a full house.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments, body tube 1
Peripheral side be provided with annular protrusion 8, the side of annular protrusion 8 is connected to the open end of amendment lens barrel 5.
Specifically, annular protrusion 8 and body tube 1 are integrated the structure of connection, it can be by cutting Shirts molding either one
Injected plastics material is made, and keeps higher verticality between the annular surface of annular protrusion 8 and the axis of body tube 1；For the ease of
Processing reduces difficulty of processing, and annular protrusion 8 can be pasted on the peripheral side of body tube 1 by adhesive, when body tube 1 is
When metal material, the mode that annular protrusion 8 is connected through a screw thread can also be arranged in the peripheral side of body tube 1
Using above-described embodiment the utility model has the advantages that by the way that annular protrusion 8 is arranged on the outside of body tube 1, on the one hand to amendment
Installation between lens barrel 5 and body tube 1 provides the plane of positioning datum, has body tube 1 and the axis for correcting lens barrel 5
Preferable concentricity；On the other hand, it realizes to sliding lens barrel 2 along the limit of 1 axis direction of body tube, avoids because of primary mirror
Cylinder 1 stretch in sliding lens barrel 2 it is too long caused by convex lens group 3 fall off；In addition, also realizing sliding lens barrel 2 and amendment lens barrel 5
Separately positioned, the movement interference both avoided；Also reduce the relative position between adjustment body tube 1 and sliding lens barrel 2
When the hand that generates to the friction damage of body tube 1 and amendment lens barrel 5.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments slides mirror
Location hole 9 is offered on the barrel of cylinder 2,9 internal screw thread of location hole is connected with positioning bolt 10；Positioning bolt 10 is connected to primary mirror
When on cylinder 1, sliding lens barrel 2 is static with respect to body tube 1.
Specifically, offering internal screw thread compatible with positioning bolt 10 in location hole 9, positioning bolt 10 uses hexagonal
Nut either hexagonal socket nut reduces when selecting hexagonal socket nut because coming outside the whole device that connector leakage generates
The phenomenon that aesthetics is lower is seen, while reducing the scratch caused by leak outside because of connector to user.
Using above-described embodiment the utility model has the advantages that by the way that location hole 9, and the spiral shell in location hole 9 are arranged on sliding lens barrel 2
Line is connected with positioning bolt 10, realizes the locking to position between the body tube 1 adjusted and sliding lens barrel 2, reduce because
The influence for the change to the angle of divergence adjusted that relative movement generates between body tube 1 and sliding lens barrel 2, improves light
The stability of beam divergence angle.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments corrects mirror
The open end of cylinder 5 is provided with benchmark flange face 7, and benchmark flange face 7 is circular ring shape, and benchmark flange face 7 is located inside amendment lens barrel 5
And perpendicular to the axis of amendment lens barrel 5, benchmark flange face 7 is connected to one end that body tube 1 is fixed with concavees lens group 4.
Specifically, benchmark flange face 7 is by turning or is milled into, flatness with higher, lower table
Surface roughness, while the axis of benchmark flange face 7 and amendment lens barrel 5 and body tube 1 all has higher verticality.
Using above-described embodiment the utility model has the advantages that by the way that benchmark flange face 7 is arranged in amendment lens barrel 5, amendment ensure that
The opposite coaxial precision with body tube 1 of lens barrel 5, reduces because of light caused by deflecting between amendment lens barrel 5 and body tube 1 because of axis
Shu Xiuzheng mass is deteriorated, and then reduces the influence to the laser beam spot quality after expanding.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments, body tube 1
Inner sidewall include the inner sunken face 11 and outer along the sequentially connected inner sunken face 11 of its axis, cylindrical surface 12 and convex outward 13
The open end of body tube 1 is arranged in convex surface 13, cylindrical surface 12 with inner sunken face 11 respectively, and convex outward 13 is arranged in body tube
1 is fixed with one end of concave surface microscope group.
Specifically, inner sunken face 11 refers to 1 inner sidewall of the body tube wall surface recessed to lens barrel axis direction, convex outward
13 refer to the wall surface that 1 inner sidewall of body tube is protruded to lens barrel far from lens barrel axis direction.
Using above-described embodiment the utility model has the advantages that by setting sequentially connected inner sunken face for 1 inner wall of body tube
11, cylindrical surface 12 and convex outward 13 reduce influence of 1 inner wall of body tube to beam spread process, improves and expands
The laser beam that optical quality is good and collimation is good can be obtained in stability.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments corrects mirror
Cylinder 5 is threaded on body tube 1.
Specifically, the threaded connection in above-described embodiment can be the screw thread of common left or right rotation, it is also possible to pipe spiral shell
The thread forms such as line.
Using above-described embodiment the utility model has the advantages that can using what is be threadedly coupled between lens barrel 5 and body tube 1 by that will correct
On the one hand disassembly mode makes to fix more consolidating between body tube 1 and amendment lens barrel 5, lens barrel 5 will be corrected by the other hand realizing
It is easily dismantled from body tube 1；It is threadedly coupled bonding strength with higher simultaneously, processing and manufacturing difficulty is low, stable connection
Property is good.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments, convex lens
Group 3 includes at least one convex lens.
Specifically, the light shaft coaxle of at least one convex lens, is arranged in parallel between each other and is connected by connector
It is module structure integrated.
Using above-described embodiment the utility model has the advantages that by by convex lens group 3 be set as by multiple convex lens group 3 at side
Formula realizes the modularization of convex lens group 3, and corresponding module can be changed quickly to adapt to different beam qualities and expand multiplying power
It is required that processing between multiple convex lens in convex lens group 3 through optical centering, guarantee light shaft coaxle degree and the depth of parallelism, to mention
The high precision of optical system.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments, concavees lens
Group 4 includes at least one concave lens.
Specifically, the light shaft coaxle of at least one concave lens, is arranged in parallel between each other and is connected by connector
It is module structure integrated.
Using above-described embodiment the utility model has the advantages that by by concavees lens group 4 be set as by multiple concavees lens groups 4 at side
Formula realizes the modularization of concavees lens group 4, and corresponding module can be changed quickly to adapt to different beam qualities and expand multiplying power
It is required that processing between multiple concavees lens in concavees lens group 4 through optical centering, guarantee light shaft coaxle degree and the depth of parallelism, to mention
The high precision of optical system.
As depicted in figs. 1 and 2, the beam expanding lens of a kind of amendment optical quality in some alternative embodiments corrects mirror
The inner sidewall of cylinder 5 is sequentially connected cylindrical thread section, conical surface section and Cylinder Surface section, and the setting of cylindrical thread section is in amendment lens barrel
The one end for being fixed with cylindrical mirror 6 is arranged in 5 open end, Cylinder Surface section, and the big end of conical surface section is connected with cylindrical thread section,
The small end of conical surface section is connected with Cylinder Surface section, is provided with pipe screw thread on the inner sidewall of cylindrical thread section.
Using above-described embodiment the utility model has the advantages that by the setting of conical surface section, reduce amendment 5 inner sidewall of lens barrel to via
The interference of the laser beam of cylindrical mirror incidence, improves the quality of amendment hot spot, and laser can be all introduced into and be equipped with concave mirror
The lens barrel that expands of group 4 is expanded.
In the description of this specification, reference term " embodiment one ", " embodiment two ", " example ", " specific example " or
The description of " some examples " etc. means that specific method, device or feature described in conjunction with this embodiment or example are contained in this reality
With at least one novel embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to
Be identical embodiment or example.Moreover, description specific features, method, apparatus or feature can any one or it is more
It can be combined in any suitable manner in a embodiment or example.In addition, without conflicting with each other, those skilled in the art can
The feature of different embodiments or examples described in this specification and different embodiments or examples to be combined.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, all in the utility model
Spirit and principle within, any modification, equivalent replacement, improvement and so on should be included in the protection model of the utility model
Within enclosing.
Claims (10)
1. a kind of beam expanding lens for correcting optical quality characterized by comprising expand lens barrel, convex lens group (3), concavees lens group
(4), lens barrel (5) and cylindrical mirror (6) are corrected；Described one end for expanding lens barrel is fixedly connected with convex lens group (3), the beam expanding lens
The other end of cylinder is fixedly connected with concavees lens group (4)；One end of amendment lens barrel (5) is fixedly connected with cylindrical mirror (6), described
The other end for correcting lens barrel (5) is open and be detachably connected on and described expand one end that lens barrel is fixed with the concavees lens group (4).
2. a kind of beam expanding lens for correcting optical quality according to claim 1, which is characterized in that the lens barrel that expands includes
Body tube (1) and sliding lens barrel (2)；One end of sliding lens barrel (2) is fixedly connected with the convex lens group (3), the cunning
The other end of moving lens barrel (2) is open and is set in one end of the body tube (1), the body tube (1) and the sliding lens barrel
(2) it is slidably connected between, the other end of the body tube (1) is fixedly connected with the concavees lens group (4)；The amendment lens barrel
(5) open end is set in the body tube (1) and is fixed with one end of concavees lens group (4) and is detachably connected therewith.
3. a kind of beam expanding lens for correcting optical quality according to claim 2, which is characterized in that cylindrical mirror (6) packet
Include at least one bent moon cylindrical mirror.
4. a kind of beam expanding lens for correcting optical quality according to claim 3, which is characterized in that the body tube (1)
Peripheral side is provided with annular protrusion (8), and the side of the annular protrusion (8) is connected to the open end of amendment lens barrel (5).
5. a kind of beam expanding lens for correcting optical quality according to claim 4, which is characterized in that the sliding lens barrel (2)
Barrel on offer location hole (9), location hole (9) internal screw thread is connected with positioning bolt (10)；The positioning bolt
(10) when being connected on the body tube (1), the relatively described body tube (1) of the sliding lens barrel (2) is static.
6. a kind of beam expanding lens for correcting optical quality according to claim 5, which is characterized in that the amendment lens barrel (5)
Open end be provided with benchmark flange face (7), the benchmark flange face (7) is circular ring shape, and the benchmark flange face (7) is located at institute
It states inside amendment lens barrel (5) and perpendicular to the axis of amendment lens barrel (5), the benchmark flange face (7) is connected to the master
Lens barrel (1) is fixed with one end of concavees lens group (4).
7. according to a kind of described in any item beam expanding lens for correcting optical quality of claim 2 to 6, which is characterized in that the master
The inner sidewall of lens barrel (1) includes along the sequentially connected inner sunken face of its axis (11), cylindrical surface (12) and convex outward (13), institute
It is tangent with the inner sunken face (11) and the convex outward (13) respectively to state cylindrical surface (12), inner sunken face (11) setting
In the open end of the body tube (1), the convex outward (13), which is arranged, is fixed with the concavees lens group in the body tube (1)
One end.
8. according to a kind of described in any item beam expanding lens for correcting optical quality of claim 2 to 6, which is characterized in that described to repair
Positive lens barrel (5) is threaded on the body tube (1).
9. a kind of beam expanding lens for correcting optical quality according to any one of claims 1 to 6, which is characterized in that described convex
Lens group (3) includes at least one convex lens.
10. a kind of beam expanding lens for correcting optical quality according to any one of claims 1 to 6, which is characterized in that described recessed
Lens group (4) includes at least one concave lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181564.XU CN208239736U (en) | 2018-07-24 | 2018-07-24 | A kind of beam expanding lens for correcting optical quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181564.XU CN208239736U (en) | 2018-07-24 | 2018-07-24 | A kind of beam expanding lens for correcting optical quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239736U true CN208239736U (en) | 2018-12-14 |
Family
ID=64574560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821181564.XU Active CN208239736U (en) | 2018-07-24 | 2018-07-24 | A kind of beam expanding lens for correcting optical quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239736U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456364A (en) * | 2019-07-19 | 2019-11-15 | 北醒（北京）光子科技有限公司 | A kind of laser radar module |
| CN113189780A (en) * | 2021-04-21 | 2021-07-30 | 吉林省长光瑞思激光技术有限公司 | Light path shaping system capable of realizing laser round and square spot change |
| CN114690326A (en) * | 2022-02-25 | 2022-07-01 | 湖北优光科学仪器有限公司 | Elliptical optical fiber collimator |
| CN115201990A (en) * | 2022-09-08 | 2022-10-18 | 成都中科卓尔智能科技集团有限公司 | Light source lens of semiconductor optical material internal defect detection sheet |
-
2018
- 2018-07-24 CN CN201821181564.XU patent/CN208239736U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110456364A (en) * | 2019-07-19 | 2019-11-15 | 北醒（北京）光子科技有限公司 | A kind of laser radar module |
| CN113189780A (en) * | 2021-04-21 | 2021-07-30 | 吉林省长光瑞思激光技术有限公司 | Light path shaping system capable of realizing laser round and square spot change |
| CN114690326A (en) * | 2022-02-25 | 2022-07-01 | 湖北优光科学仪器有限公司 | Elliptical optical fiber collimator |
| CN115201990A (en) * | 2022-09-08 | 2022-10-18 | 成都中科卓尔智能科技集团有限公司 | Light source lens of semiconductor optical material internal defect detection sheet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208239736U (en) | A kind of beam expanding lens for correcting optical quality | |
| CN201758240U (en) | Semiconductor laser collimation beam expander | |
| CN110000468B (en) | Manual focusing optical fiber laser cutting head | |
| CN207424505U (en) | A kind of lens position adjusting apparatus and projecting apparatus | |
| CN104570341B (en) | A kind of method and apparatus for synthesizing Beams in Conical Lenses shadow region | |
| CN102053326A (en) | Beam expander locating mechanism and optical system with same | |
| CN207067543U (en) | High ovality laser beam reshaping system | |
| CN103722290A (en) | Focusing device and laser cutting device with the same | |
| CN102495512A (en) | Laser illuminator capable of continuously regulating illumination angle in large scale and regulating method thereof | |
| CN201331605Y (en) | Optical fiber coupling packaging structure for high-power semi-conductor laser | |
| CN107528202A (en) | A kind of micro-slice laser | |
| CN206824817U (en) | Laser welding head | |
| CN103885186B (en) | A kind of based on prism to and cylindrical mirror disappear astigmatic bundle orthopedic systems | |
| CN203101668U (en) | Dodging lens, dodging laser light source and optical system used for shaping semiconductor laser beam | |
| CN116299959B (en) | Small collimator device | |
| CN209879066U (en) | Optical fiber coupling system | |
| CN111458894A (en) | Polarization-adjustable variable-magnification laser beam expansion collimator with adjustment warning function and collimation method thereof | |
| CN107870502B (en) | Ray machine lighting system and laser projection device | |
| CN212009174U (en) | Rectangular light spot shaper and laser | |
| CN207267099U (en) | Collimator assembly | |
| CN205374849U (en) | Light path beam expanding lens bar | |
| CN209765176U (en) | Energy evenly distributed word line laser module | |
| CN209624911U (en) | A kind of spliced bar shaped laser aid for optical element defects detection | |
| CN103244849A (en) | Light source device emitting collimating parallel light | |
| CN107450187B (en) | Collimation shaping device applied to large elliptical light spots |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |