CN109807696A - A kind of processing method of low centering error meniscus lens - Google Patents
A kind of processing method of low centering error meniscus lens Download PDFInfo
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- CN109807696A CN109807696A CN201910274898.4A CN201910274898A CN109807696A CN 109807696 A CN109807696 A CN 109807696A CN 201910274898 A CN201910274898 A CN 201910274898A CN 109807696 A CN109807696 A CN 109807696A
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- auxiliary block
- meniscus lens
- strobilus masculinus
- male cone
- centering error
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Abstract
The invention belongs to optics Ultraprecision Machining fields, more particularly to a kind of processing method of low centering error meniscus lens, to reduce meniscus lens centering error, image quality caused by solving the problems, such as because of centering error declines, this programme processes male cone (strobilus masculinus) by the way of on-line machining in the first auxiliary block, and the male cone (strobilus masculinus) of processing is overlapped with concave surface axis；Then direct-on-line cooperates male cone (strobilus masculinus) and inner conical surface after processing inner conical surface in the second auxiliary block, processing and fabricating convex surface, the axis of inner conical surface and male cone (strobilus masculinus) all replicates the precision of machine spindle in process, therefore Set and Positioning difficulty is reduced, achieves that the meniscus lens of low centering error are processed using only three axis lathes.The technical solution is not only applicable in and processes with meniscus lens, could be applicable to the processing of the more demanding two-sided lens of other centering errors and the mold processing of two end face high accuracy positionings.
Description
Technical field
The invention belongs to Ultraprecision Machining fields, and in particular to a kind of processing method of low centering error meniscus lens.
Background technique
Meniscus lens are that meniscus shaped lens is, numerical value difference also seldom spherical surface or aspherical structure smaller by two radius of curvature
At crescent lens.Meniscus lens point positive bent moon and diverging meniscus lens.Meniscus lens be on one side it is convex, be recessed on one side.
It can be convergent lens, be also possible to divergent lens, codetermined by refractive index, curvature and radius.It is widely used in taking a picture
System, optical projection system, imaging system, optical finder, in laser measurement system.
Clamping is needed in conventional processes twice, meniscus lens body sidewall is first processed into cylindrical surface, is then being processed
Concave surface out by means such as dial gauges is divided meniscus lens then on the basis of cylinder side wall.The side wall relied on due to it
Cylinder is positioned, if cylinder axis and platen out of plumb, the convex surface of processing is inevitable to have folder with concave surface optical axis
Angle.It is limited by adjustment precision, there are centering errors between the meniscus lens concave and convex surface of processing.Centering error be mainly shown as convex surface and
Concave surface optical axis is parallel but is not overlapped, the not parallel both of these case of convex surface concave surface optical axis.There are the meniscus lens of centering error can give optics
System introduces coma, and the aberrations such as astigmatism seriously affect imaging or light wave face quality.Therefore high-precision meniscus lens require to the greatest extent may be used
The centering error in two faces can be reduced.
Summary of the invention
Object of the present invention is to reduce meniscus lens centering error, the technology that image quality declines caused by solving because of centering error is asked
Topic.The technical scheme adopted is as follows:
A kind of processing method of low centering error meniscus lens, the meniscus lens on two end faces of bent moon mirror body by being process
Concave and convex surface composition, successively includes the next steps:
By bent moon mirror body clamping on lathe turntable, concave surface is processed on meniscus lens body end face；
First auxiliary block is securely fitted on concave surface, and male cone (strobilus masculinus) is processed into the end face of the first auxiliary block；
The bent moon mirror body that fixing assembling has the first auxiliary block is removed from lathe；
By the fixed clamping of the second auxiliary block on lathe turntable, and the end face of the second auxiliary block is processed into and is agreed with male cone (strobilus masculinus)
Inner conical surface；
By the inner conical surface fixing assembling of the male cone (strobilus masculinus) of the first auxiliary block and the second auxiliary block, and process in bent moon mirror body convex
Face.
The principle that the low centering error of convex surface and concave surface on two end faces of meniscus lens may be implemented of above-mentioned technical proposal is: will
Bent moon mirror body clamping processes concave surface on lathe turntable, and the optical axis of concave surface is inevitable parallel with turret axis.Complete the process concave surface
Afterwards, the first auxiliary block is securely fitted on concave surface by direct-on-line, and is processed into male cone (strobilus masculinus) in the end face of the first auxiliary block, due to
First auxiliary block and bent moon mirror body are under same station, the male cone (strobilus masculinus) axial line and concave surface optical axis coincidence that are process.By second
The fixed clamping of auxiliary block processes inner conical surface on lathe turntable, and the axial line of inner conical surface is inevitable parallel with turret axis；Directly exist
Male cone (strobilus masculinus) and inner conical surface fixing assembling, male cone (strobilus masculinus) are overlapped by line with inner conical surface axial line；Convex surface processing is processed in bent moon mirror body
Convex surface optical axis be overlapped with male cone (strobilus masculinus) axial line.Therefore the male cone (strobilus masculinus) and inner conical surface mutually agreed with by on-line machining realizes curved
The coincidence of moon mirror concave and convex surface optical axis, to realize low centering error effect.Additionally due to convex surface and concave surface in process
Optical axis positioned completely by conical surface axial line therefore reduce Set and Positioning required precision of the bent moon mirror body on turntable, be not required to
Bent moon mirror body cylinder side wall axis is relied on to navigate to turntable center.Since the use of the technical program also achieves, even if
Not by bent moon mirror body clamping in turntable center, it is also possible to obtain the effect of the meniscus lens of low bias.
It is preferred: successively to process concave surface, male cone (strobilus masculinus), inner conical surface using tri- translation shaft modes of X, Y, Z of lathe.Which
The requirement to lathe is reduced, low centering error meniscus lens processing can be realized in three axis lathes.
Using any two translation shaft in X, Y, Z of lathe, the mode of turntable is added successively to process concave surface, male cone (strobilus masculinus), interior
The conical surface.Which further reduced the requirement to lathe, and the two additional turntables of axis lathe can be realized low centering error meniscus lens and add
Work.And due in process cutter move along the bus of concave surface, male cone (strobilus masculinus), inner conical surface, realized by turntable rotation entire
The processing in face, face shape error are presented rotational symmetry and are distributed, and can also further increase the axis cooperation essence of male cone (strobilus masculinus) and inner conical surface
Degree.
For the ease of processing, the first auxiliary block and the second auxiliary block select the lower material of hardness.Such as aluminium, plastics, wood
Material.
The mode of selection gluing between first auxiliary block and the second auxiliary block and bent moon mirror body is assembled.Such as select hot melt
Glue, beeswax, pitch, rosin etc..Assembly is realized using heat gun direct-on-line hot melting way when glued.
Glued mode is selected to assemble between first auxiliary block and concave surface, the male cone (strobilus masculinus) of the first auxiliary block and the second auxiliary block
Vacuum suction or magnetic mode fixing assembling are selected between inner conical surface.
In order to which further increase inner conical surface and male cone (strobilus masculinus) agrees with precision, one is processed at inner cone center when processing inner cone
Centre bore.The problem of inner cone with centre bore is easier to process, can be to avoid being difficult at inner cone center because of cutter interference.
After being processed into concave surface, direct-on-line carries out rolling outer circle processing to bent moon mirror body.Rolling outer circle i.e. will be curved on lathe
The side wall of month mirror is processed into cylinder；The optical axis and meniscus lens body sidewall cylinder axis for rolling outer circle back concave surface are overlapped.Finally process
Meniscus lens concave surface optical axis, convex surface optical axis, meniscus lens body axis be overlapped, not only reduce centering error also and meniscus lens dress can be improved
Positioning accuracy when supplying system, to improve image quality.
Detailed description of the invention
Fig. 1 is the bent moon mirror body schematic diagram for completing the process concave surface；
Fig. 2 is the schematic diagram of the first auxiliary block of fixing assembling on concave surface；
Fig. 3 is that the first auxiliary block is processed into male cone (strobilus masculinus) schematic diagram；
Fig. 4 is the inner conical surface schematic diagram of processing；
Fig. 5 is that male cone (strobilus masculinus) and inner conical surface are cooperated schematic diagram；
Fig. 6 is the bent moon mirror body for processing convex surface；
Fig. 7 is meniscus lens schematic diagram；
Fig. 8 is band centre bore inner conical surface schematic diagram；
Fig. 9 is that male cone (strobilus masculinus) is cooperated schematic diagram with centre bore inner conical surface；
Wherein: 1 is bent moon mirror body, and 2 be concave surface, and 3 be convex surface, and 4 be male cone (strobilus masculinus), and 5 be inner conical surface, and 6 be center hole.
Specific embodiment
In order to illustrate more clearly of invention, it is further described with reference to the accompanying drawings and embodiments:
Embodiment one
A kind of processing method of low centering error meniscus lens, as shown in fig. 7, the meniscus lens are by 1 two end faces of bent moon mirror body
On the concave surface 2 that is process and convex surface 3 form, successively include the next steps:
By bent moon mirror body clamping on lathe turntable, as shown in Figure 1, the workpiece coordinate system of concave surface to be processed is established, in meniscus lens
Body end processes concave surface on face；
As shown in Fig. 2, the first auxiliary block is securely fitted on concave surface, by the first auxiliary block under the workpiece coordinate system of concave surface
Male cone (strobilus masculinus) 4 is processed into end face, as shown in Figure 3；
The bent moon mirror body that fixing assembling has the first auxiliary block is removed from lathe；
By the fixed clamping of the second auxiliary block on lathe turntable, as shown in figure 4, the workpiece coordinate system of the second auxiliary block is established, and
The end face of second auxiliary block is processed into the inner conical surface 5 agreed with male cone (strobilus masculinus)；
As shown in figure 5, by the inner conical surface fixing assembling of the male cone (strobilus masculinus) of the first auxiliary block and the second auxiliary block, in the second auxiliary block
Under workpiece coordinate system, by bent moon mirror body, convex surface is processed into another end face, as shown in Figure 6.
Embodiment two
A kind of processing method of low centering error meniscus lens, the meniscus lens on two end faces of bent moon mirror body by being process
Concave and convex surface composition, successively includes the next steps:
By bent moon mirror body clamping on lathe turntable, concave surface is processed on meniscus lens body end face, and meniscus lens body sidewall is carried out
Ball process；
First auxiliary block is securely fitted on concave surface, and male cone (strobilus masculinus) is processed into the end face of the first auxiliary block；
The bent moon mirror body that fixing assembling has the first auxiliary block is removed from lathe；
By the fixed clamping of the second auxiliary block on lathe turntable, as shown in figure 8, in the second auxiliary block center machining center hole 6, and
The end face of second auxiliary block is processed into the inner conical surface agreed with male cone (strobilus masculinus)；
As shown in figure 9, by the inner conical surface fixing assembling of the male cone (strobilus masculinus) of the first auxiliary block and the second auxiliary block, and in bent moon mirror body
Process convex surface.
The technical program is in order to reduce the centering error of the concave and convex surface of meniscus lens, using the mode of on-line machining first
Male cone (strobilus masculinus) is processed in auxiliary block, the male cone (strobilus masculinus) of processing is overlapped with concave surface axis；Then inner conical surface is processed in the second auxiliary block
Direct-on-line cooperates male cone (strobilus masculinus) and inner conical surface afterwards, processing and fabricating convex surface, and the axis of inner conical surface and male cone (strobilus masculinus) is all in process
The precision of machine spindle directly is replicated, therefore reduces Set and Positioning difficulty, achieves that low centering error using only three axis lathes
Meniscus lens processing.The technical solution is not only applicable in and processes with meniscus lens, could be applicable to more demanding pair of other centering errors
The processing of face lens and mold processing for two end face high accuracy positionings.
Claims (8)
1. a kind of processing method of low centering error meniscus lens, the meniscus lens on two end faces of bent moon mirror body by being process
Concave and convex surface composition, it is characterised in that successively include the next steps:
By bent moon mirror body clamping on lathe turntable, concave surface is processed on meniscus lens body end face；
First auxiliary block is securely fitted on concave surface, and male cone (strobilus masculinus) is processed into the end face of the first auxiliary block；
The bent moon mirror body that fixing assembling has the first auxiliary block is removed from lathe；
By the fixed clamping of the second auxiliary block on lathe turntable, and the end face of the second auxiliary block is processed into and is agreed with male cone (strobilus masculinus)
Inner conical surface；
By the inner conical surface fixing assembling of the male cone (strobilus masculinus) of the first auxiliary block and the second auxiliary block, and process in bent moon mirror body convex
Face.
2. a kind of processing method of low centering error meniscus lens according to claim 1, it is characterised in that: using the X of lathe,
Y, tri- translation shaft modes of Z successively process concave surface, male cone (strobilus masculinus), inner conical surface.
3. a kind of processing method of low centering error meniscus lens according to claim 1, it is characterised in that: using the X of lathe,
Y, any two translation shaft in Z adds the mode of turntable successively to process concave surface, male cone (strobilus masculinus), inner conical surface.
4. a kind of processing method of low centering error meniscus lens according to claim 1, it is characterised in that: the first auxiliary block and
Second auxiliary block selects the lower material of hardness.
5. a kind of processing method of low centering error meniscus lens according to claim 1, it is characterised in that: the first auxiliary block and
The mode of selection gluing between second auxiliary block and bent moon mirror body is assembled.
6. a kind of processing method of low centering error meniscus lens according to claim 1, it is characterised in that: the first auxiliary block and
Glued mode is selected to assemble, select vacuum to inhale between the male cone (strobilus masculinus) of the first auxiliary block and the inner conical surface of the second auxiliary block between concave surface
Or magnetic mode fixing assembling.
7. a kind of processing method of low centering error meniscus lens according to claim 1, it is characterised in that: when processing inner cone
A centre bore is processed at inner cone center.
8. a kind of processing method of low centering error meniscus lens described according to claim 1~one of 7, it is characterised in that: adding
After work is at concave surface, rolling outer circle processing directly is carried out to bent moon mirror body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910274898.4A CN109807696B (en) | 2019-04-08 | 2019-04-08 | Method for processing low-eccentricity meniscus lens |
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| CN201910274898.4A CN109807696B (en) | 2019-04-08 | 2019-04-08 | Method for processing low-eccentricity meniscus lens |
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| CN109807696A true CN109807696A (en) | 2019-05-28 |
| CN109807696B CN109807696B (en) | 2020-11-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252303A1 (en) * | 2021-05-31 | 2022-12-08 | 苏州大学 | Fixture and method for workpiece positioning and machining method for optical element |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1308173A (en) * | 1969-06-24 | 1973-02-21 | Onera (Off Nat Aerospatiale) | Production of optical surfaces and elements |
| US4267672A (en) * | 1979-06-04 | 1981-05-19 | Cole National Corporation | Lens processing method |
| US5074082A (en) * | 1989-12-26 | 1991-12-24 | Cappelli Quido A | Method for producing bifocal contact lenses |
| JPH06320465A (en) * | 1993-05-14 | 1994-11-22 | Olympus Optical Co Ltd | Lens sectional holding mechanism |
| JPH0985604A (en) * | 1995-09-28 | 1997-03-31 | Fuji Photo Optical Co Ltd | Axially eccentric lens holding device |
| JP2009090405A (en) * | 2007-10-05 | 2009-04-30 | Olympus Corp | Gripping tool, gripping method, and machining device |
| CN204935374U (en) * | 2015-09-09 | 2016-01-06 | 湖北扬子江光电仪器有限公司 | Super large caliber dome mirror corase grind special purpose device |
| CN107378652A (en) * | 2017-08-14 | 2017-11-24 | 福建福晶科技股份有限公司 | A kind of processing method of eccentric bent moon cylindrical mirror |
| CN108188840A (en) * | 2017-12-28 | 2018-06-22 | 中国科学院西安光学精密机械研究所 | A kind of processing method of curved surface prism |
| CN108422286A (en) * | 2018-03-30 | 2018-08-21 | 马鞍山市江南光学有限公司 | A kind of processing method and its positioning tool of Si meter Te roof prisms |
| CN208005362U (en) * | 2018-03-30 | 2018-10-26 | 马鞍山市江南光学有限公司 | A kind of positioning tool of prism ridge rib |
| CN208005360U (en) * | 2018-03-30 | 2018-10-26 | 马鞍山市江南光学有限公司 | A kind of optical prism side hang down control positioning and checking tool |
-
2019
- 2019-04-08 CN CN201910274898.4A patent/CN109807696B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1308173A (en) * | 1969-06-24 | 1973-02-21 | Onera (Off Nat Aerospatiale) | Production of optical surfaces and elements |
| US4267672A (en) * | 1979-06-04 | 1981-05-19 | Cole National Corporation | Lens processing method |
| US5074082A (en) * | 1989-12-26 | 1991-12-24 | Cappelli Quido A | Method for producing bifocal contact lenses |
| JPH06320465A (en) * | 1993-05-14 | 1994-11-22 | Olympus Optical Co Ltd | Lens sectional holding mechanism |
| JPH0985604A (en) * | 1995-09-28 | 1997-03-31 | Fuji Photo Optical Co Ltd | Axially eccentric lens holding device |
| JP2009090405A (en) * | 2007-10-05 | 2009-04-30 | Olympus Corp | Gripping tool, gripping method, and machining device |
| CN204935374U (en) * | 2015-09-09 | 2016-01-06 | 湖北扬子江光电仪器有限公司 | Super large caliber dome mirror corase grind special purpose device |
| CN107378652A (en) * | 2017-08-14 | 2017-11-24 | 福建福晶科技股份有限公司 | A kind of processing method of eccentric bent moon cylindrical mirror |
| CN108188840A (en) * | 2017-12-28 | 2018-06-22 | 中国科学院西安光学精密机械研究所 | A kind of processing method of curved surface prism |
| CN108422286A (en) * | 2018-03-30 | 2018-08-21 | 马鞍山市江南光学有限公司 | A kind of processing method and its positioning tool of Si meter Te roof prisms |
| CN208005362U (en) * | 2018-03-30 | 2018-10-26 | 马鞍山市江南光学有限公司 | A kind of positioning tool of prism ridge rib |
| CN208005360U (en) * | 2018-03-30 | 2018-10-26 | 马鞍山市江南光学有限公司 | A kind of optical prism side hang down control positioning and checking tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252303A1 (en) * | 2021-05-31 | 2022-12-08 | 苏州大学 | Fixture and method for workpiece positioning and machining method for optical element |
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| CN109807696B (en) | 2020-11-03 |
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Effective date of registration: 20211206 Address after: 130000 zone B, 4th floor, No. 999, Feiyue East Road, high tech Development Zone, Changchun City, Jilin Province Patentee after: Changchun borrida optoelectronics Co.,Ltd. Address before: No. 8, Xiangcheng District Ji Xue Road, Suzhou, Jiangsu Patentee before: SOOCHOW University |