CN206193313U - Multi -disc formula laser field lens - Google Patents
Multi -disc formula laser field lens Download PDFInfo
- Publication number
- CN206193313U CN206193313U CN201621203868.2U CN201621203868U CN206193313U CN 206193313 U CN206193313 U CN 206193313U CN 201621203868 U CN201621203868 U CN 201621203868U CN 206193313 U CN206193313 U CN 206193313U
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- China
- Prior art keywords
- eyeglass
- lens
- lens barrel
- trim ring
- ring
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Abstract
The utility model discloses a multi -disc formula laser field lens, include that two ends opening and inner wall are equipped with the tubaeform lens cone of hierarchic structure, the lens cone internal fixation has set up lens group, spacer ring group and clamping ring group. The utility model discloses a multi -disc formula laser field lens has the advantage that lens axiality and the depth of parallelism are high, the lens interval is accurate, lens availability is high, has better focus performance.
Description
Technical field
The utility model is related to optical lens technical field, more particularly to a kind of multiple-piece laser field lens.
Background technology
In modern industry production, carrying out the operations such as mark, welding with laser can greatly improve machining accuracy and production
Efficiency.Laser field lens is arranged on the end of laser scanning mirror, for forming focussing plane, is not changing optical system optical characteristics
On the premise of, the focal plane that certain breadth is obtained as light-beam position is changed over, laser marking, Laser Welding are realized on that plane
Connect, laser cleaning, 3D printing etc..Laser field lens is generally formed by several lens combinations, therefore axiality to lens group, flat
Distance plays vital effect to the performance of laser field lens between row degree and lens.Common laser field lens is often due to set
The reason for meter, enough assembly precisions are not reached, cause the precision of the axiality, the depth of parallelism and lens spacing of lens not reach and want
Ask.
Utility model content
The utility model does not reach the defect of requirement for the laser field lens precision of above-mentioned prior art, proposes that one kind is more held
Easily assemble, precision is higher, the more preferable multiple-piece laser field lens of stability.
In order to solve the above-mentioned technical problem, the utility model proposes following technical scheme：
A kind of multiple-piece laser field lens, including open at both ends tubaeform lens barrel, lens barrel inwall has several ladders.Lens barrel
Ladder at the first eyeglass, the first spacer ring, the second eyeglass, second are sequentially provided with from the small head end of lens barrel towards the stub end of lens barrel
Spacer ring, the 3rd eyeglass, the first trim ring, the 4th eyeglass and the second trim ring.First eyeglass and the second eyeglass are meniscus shaped lens, the 3rd
Eyeglass is biconvex lens, and the 4th eyeglass is flat-plate lens.On the direction of lens barrel axis, the hierarchic structure pair in lens barrel
Four pieces of eyeglasses are positioned, it is ensured that four pieces of eyeglasses have axiality high.First trim ring is locked to lens barrel inwall, and to the 3rd mirror
Piece applies pressure, and then the first eyeglass, the first spacer ring, the second eyeglass, the second spacer ring and the 3rd eyeglass are pressed abd fixed on into lens barrel
Between microcephaly's end stand rank and the first trim ring, it is ensured that the depth of parallelism and spacing between eyeglass.Second trim ring is locked to lens barrel inwall, and
4th eyeglass is pressed abd fixed on the ladder of lens barrel inwall.Laser beam is incident from the small head end of multiple-piece laser field lens, passes through
Lens set, hot spot is formed from after the stub end outgoing of laser field lens on focussing plane.Change the incident angle of laser beam, can be with
Position of the control hot spot on focussing plane.The beneficial effects of the utility model are：Employ multiple eyeglass optimum organizations
Mode, laser field lens of the present utility model has more preferable focusing performance and bigger focussing plane；In lens barrel inwall ladder knot
Under the positioning of structure, eyeglass, spacer ring and trim ring have axiality higher；It is accurate that spacer ring between eyeglass can have eyeglass
The depth of parallelism and spacing；Lens barrel uses horn-like design, it is to avoid light path is disturbed by lens barrel inwall, it is ensured that the model of focussing plane
Enclose, improve the effective rate of utilization of eyeglass.
Preferably, four pieces of eyeglasses form avoiding hollow groove with lens barrel inwall, after assembling spacer ring and trim ring, form certain gap,
Spacer ring and trim ring are interfered with lens barrel when can avoid assembling, influence the positioning precision of eyeglass.
Preferably, the second spacer ring has the outer wall of taper, and the inwall of lens barrel position corresponding with the second spacer ring is also the conical surface,
Taper of the taper of the second spacer ring outer wall less than the conical surface of inboard wall of the lens barrel, it is to avoid produced with lens barrel during the second spacer ring of assembling and done
Relate to.
Preferably, the inwall of the second spacer ring is taper, and the inwall of the first trim ring and the second trim ring has the conical surface, is avoided that light
Road is interfered.
Preferably, the external circumferential of the first trim ring and the second trim ring forms fine thread, and can with lens barrel inwall on
Fine thread is engaged.First trim ring and the second trim ring are locked with lens barrel inwall by fine thread, it is ensured that lens set and every
The robustness of circle group, also ensure that the depth of parallelism of eyeglass and coaxial.
Preferably, there is notch on the first trim ring and the second trim ring, during assembling, the assembly tool such as placing screws knife is conducive to
Improve efficiency of assembling.
Preferably, lens barrel, the first spacer ring, the second spacer ring, the first trim ring and the second trim ring are by sandblasting and black anodic oxygen
Change is processed, and on the one hand avoids light to reflect to form interference inside lens barrel, and another aspect surface oxidation forms oxide-film, improves whole
The corrosion resistance of individual field lens.
Brief description of the drawings
Fig. 1 is 1/4 sectional view of multiple-piece laser field lens of the present utility model；
Fig. 2 is the sectional view of the second spacer ring 1/4 of multiple-piece laser field lens of the present utility model；
Fig. 3 is the schematic diagram of the first trim ring of multiple-piece laser field lens of the present utility model；
Fig. 4 is the schematic diagram of the second trim ring of multiple-piece laser field lens of the present utility model.
Specific embodiment
It is described in detail with reference to a kind of Fig. 1-4 pairs of embodiment of multiple-piece laser field lens of the present utility model.
As shown in figure 1, a kind of multiple-piece laser field lens, including open at both ends tubaeform lens barrel 1.The inwall of lens barrel 1 into
Type has some ladders, and hierarchic structure has axiality higher.The inside of lens barrel 1 from the small head end of lens barrel 1 towards stub end according to
It is secondary to be provided with the first eyeglass 2, the second eyeglass 3, the 3rd eyeglass 4 and the 4th eyeglass 5.First eyeglass 2 and the second eyeglass 3 are falcate
Lens, and curved surface, towards the bending of major part extreme direction, the 3rd eyeglass 4 is biconvex lens, and the 4th eyeglass 5 is flat-plate lens.Hanging down
Directly on the direction of the axis of lens barrel 1, the hierarchic structure of the inwall of lens barrel 1 is positioned to four pieces of eyeglasses, it is ensured that four pieces of eyeglasses have
Accurate axiality.
Isolated with the first spacer ring 6 of annular between first eyeglass 2 and the second eyeglass 3.The height of the first spacer ring 6 has strict
Tolerance is limited, to ensure the precision of spacing between the first eyeglass 2 and the second eyeglass 3.First spacer ring 6, the first eyeglass 2 and lens barrel 1
Avoiding hollow groove is formed, that is, forms certain gap, the first spacer ring 6 is interfered with lens barrel 1 when preventing assembling, influence assembly precision.
Isolated with the second spacer ring 7 between second eyeglass 3 and the 3rd eyeglass 4, the height of the second spacer ring 7 also has strict tolerance to limit.Such as
Shown in Fig. 2, the second spacer ring 7 has the outer wall of taper, and the inwall of lens barrel 1 is also the conical surface, second with the corresponding position of the second spacer ring 7
Taper of the taper of the outer wall of spacer ring 7 less than the conical surface of inboard wall of lens barrel 1, it is to avoid dry with the generation of the inwall of lens barrel 1 during the second spacer ring 7 of assembling
Relate to.The inner side of the second spacer ring 7 is also taper, is disturbed by the second spacer ring 7 when being avoided that light path passes through.
The multiple-piece laser field lens of the present embodiment also includes the first trim ring 8 contacted with the 3rd eyeglass 4, the first trim ring 8
External circumferential forms fine thread, and the fine thread can be engaged with the fine thread on the inwall of lens barrel 1.By tightening
One trim ring 8, applies appropriate pressure to the 3rd eyeglass 4, so by the first eyeglass 2, the first spacer ring 6, the second eyeglass 3, second every
Circle 7 and the 3rd eyeglass 4 lock, it is ensured that eyeglass it is parallel and coaxial.First trim ring 8, the 3rd eyeglass 4 and lens barrel 1 form empty avoiding
Groove, the first trim ring 8 produces interference with lens barrel 1 when preventing assembling, influences assembly precision.As shown in figure 3, the inner side of the first trim ring 8
With the conical surface, disturbed by the first trim ring 8 when being avoided that light path passes through.There are two notches being oppositely arranged on first trim ring 8
81, the assembly tool such as placing screws knife when the notch 81 is used to assemble.The quantity of notch 81 do not limit to two, can be with
It is four or other even numbers.
4th eyeglass 5 is pressed on the ladder of the inwall of lens barrel 1 by the second trim ring 9.The external circumferential shaping of the second trim ring 9
There is fine thread, the fine thread can be engaged with the fine thread on the inwall of lens barrel 1.Second trim ring 9, the 4th eyeglass 5 and mirror
Cylinder 1 forms avoiding hollow groove, and the second trim ring 9 produces interference with lens barrel 1 when preventing assembling, influences assembly precision.As shown in figure 4, second
The inner side of trim ring 9 has the conical surface, is disturbed by the second trim ring 9 when being avoided that light path passes through.Also there are two phases on second trim ring 9
To set for assembling when place assembly tool notch 91.The quantity of notch 91 can also be four or other even numbers.
The present embodiment has also carried out sandblasting to lens barrel 1, the first spacer ring 6, the second spacer ring 7, the first trim ring 8 and the second trim ring 9
With black anodizing treatment, light is on the one hand avoided to reflect to form interference inside lens barrel 1, another aspect surface oxidation is formed
Oxide-film, improves the corrosion resistance of whole field lens.
Above-described is only some implementation methods of the present utility model.For the person of ordinary skill of the art,
On the premise of the utility model creation design is not departed from, various modifications and improvements can be made, these belong to this practicality
New protection domain.
Claims (7)
1. in a kind of multiple-piece laser field lens, it is characterised in that the tubaeform lens barrel (1) including open at both ends, the lens barrel (1)
Wall forms some ladders, from the small head end of lens barrel (1) towards the major part extreme direction of lens barrel (1) at the ladder of the lens barrel (1)
It is disposed with the first eyeglass (2), the first spacer ring (6), the second eyeglass (3), the second spacer ring (7), the 3rd eyeglass (4), the first pressure
Circle (8), the 4th eyeglass (5) and the second trim ring (9), first eyeglass (2) and the second eyeglass (3) are meniscus shaped lens, described
3rd eyeglass (4) is biconvex lens, and the 4th eyeglass (5) is flat-plate lens, first trim ring (8) and the lens barrel (1)
Inwall locking is with by first eyeglass (2), the first spacer ring (6), the second eyeglass (3), the second spacer ring (7) and the 3rd eyeglass (4)
Fixed, second trim ring (9) is locked so that the 4th eyeglass (5) is fixed with lens barrel (1) inwall.
2. multiple-piece laser field lens according to claim 1, it is characterised in that four pieces of eyeglasses respectively with the lens barrel (1)
And form avoiding hollow groove between spacer ring or trim ring three.
3. multiple-piece laser field lens according to claim 1, it is characterised in that second spacer ring (7) is with taper
Outer wall, the inwall of the lens barrel (1) position corresponding with second spacer ring (7) is the conical surface, the second spacer ring (7) outer wall
Taper of the taper less than the conical surface of inboard wall of the lens barrel (1).
4. multiple-piece laser field lens according to claim 3, it is characterised in that the inwall of second spacer ring (7) is cone
The inwall of shape, first trim ring (8) and the second trim ring (9) has the conical surface.
5. multiple-piece laser field lens according to claim 1, it is characterised in that first trim ring (8) and the second trim ring
(9) locked by fine thread with the lens barrel (1) inwall respectively.
6. multiple-piece laser field lens according to claim 5, it is characterised in that first trim ring (8) and the second trim ring
(9) notch (81,91) is offered on.
7. the multiple-piece laser field lens according to claim any one of 1-6, it is characterised in that the lens barrel (1), first every
Circle (6), the second spacer ring (7), the first trim ring (8) and the second trim ring (9) are processed by sandblasting and black anodizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621203868.2U CN206193313U (en) | 2016-11-08 | 2016-11-08 | Multi -disc formula laser field lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621203868.2U CN206193313U (en) | 2016-11-08 | 2016-11-08 | Multi -disc formula laser field lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193313U true CN206193313U (en) | 2017-05-24 |
Family
ID=58734568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621203868.2U Active CN206193313U (en) | 2016-11-08 | 2016-11-08 | Multi -disc formula laser field lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991787A (en) * | 2017-12-31 | 2018-05-04 | 重庆镭典科技有限公司 | A kind of semiconductor laser alignment device |
| CN112068226A (en) * | 2020-09-11 | 2020-12-11 | 江门英讯通光电科技有限公司 | Optical lens processing method, optical lens and laser field lens |
-
2016
- 2016-11-08 CN CN201621203868.2U patent/CN206193313U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991787A (en) * | 2017-12-31 | 2018-05-04 | 重庆镭典科技有限公司 | A kind of semiconductor laser alignment device |
| CN112068226A (en) * | 2020-09-11 | 2020-12-11 | 江门英讯通光电科技有限公司 | Optical lens processing method, optical lens and laser field lens |
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