CN106312745A - Optical element holder - Google Patents
Optical element holder Download PDFInfo
- Publication number
- CN106312745A CN106312745A CN201610976536.6A CN201610976536A CN106312745A CN 106312745 A CN106312745 A CN 106312745A CN 201610976536 A CN201610976536 A CN 201610976536A CN 106312745 A CN106312745 A CN 106312745A
- Authority
- CN
- China
- Prior art keywords
- optical element
- installed surface
- main body
- limiting section
- element fixture
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
Abstract
The invention discloses an optical element holder for holding an optical element to be processed, comprising a main body and a stopper portion. The main body consists of a mounting surface and a connecting surface opposite to the mounting surface, and the stopper portion is provided on the mounting surface. The main body is provided with at least one suction hole running through the mounting surface and the connecting surface. An optical element is provided on the mounting surface and the surface of the stopper portion remote from the mounting surface is lower than the machining surface of the optical element. By placing an optical element on a mounting surface, limiting the optical element by a stopper portion, and evacuating the air between the optical element and the mounting surface through the suction hole, the optical element on the mounting surface is stably fixed on the mounting surface, thereby ensuring high-precision machining of the optical element.
Description
Technical field
The present invention relates to optical element processing and manufacturing technical field, especially relate to a kind of high for aspherical optical element
The optical element fixture of precision processing.
Background technology
Due to the use of aspherical optical element, it is possible not only to make the performance of optical system to be obviously improved, and can letter
The structure of change system, the weight reducing system and cost, therefore aspherical optical element is in civilian, military, astronomical, Aero-Space
It is used widely in field.Along with space technology development, people are to optical system resolution and the requirement receiving energy
More and more higher, therefore, the surface figure accuracy of aspherical optical element is required more and more higher, is at this moment accomplished by corresponding high-precision
Degree process equipment supports.
The current processing technique of aspherical optical element mainly includes numerical-control milling and grinding and numerical control polishing.First, numerical control is passed through
The physical dimensions such as the external diameter of non-spherical element, bias, center thickness are controlled to design requirement by milling, are arrived by Surface contral simultaneously
The scope of polishing input requirements, then uses numerical control polishing to be polished aspherical optical element, by face shape and roughness
It is worked into index request.
In numerical-control milling and grinding and polishing process, being installed of optical element directly influences the machining accuracy of optical element and adds
Work efficiency rate, the most widely used method is to be bonded on fixture by optical element blank, or directly presss from both sides with engineering plastics ring
Hold optical element to install.But, the precision that is installed of the chucking method of existing optical element is poor and inefficient, is difficult to meet
High accuracy processing request to optical element.
Summary of the invention
Embodiment of the present invention is mainly solving the technical problems that provide a kind of optical element fixture, and described optical element presss from both sides
Possesses the higher precision that is installed, such that it is able to realize the high accuracy to the optical element being installed on described optical element fixture
Processing.
For solving above-mentioned technical problem, the technical scheme that embodiment of the present invention uses is: provide a kind of optics unit
Part fixture, for optical element to be processed is clamped, including main body and limiting section, described main body include installed surface and with
The joint face that described installed surface is relative, described limiting section is convexly equipped on described installed surface, described main body offers through described
At least one aspirating hole of installed surface and described joint face；Described optical element is arranged on described installed surface, and described spacing
The surface away from described installed surface in portion is less than the finished surface of described optical element.
Wherein in some embodiments, the radian of described installed surface connects with described installed surface with described optical element
The radian on the surface touched is identical.
Wherein in some embodiments, described main body is patty, and described limiting section is annular.
Wherein in some embodiments, the multiple interval of described limiting section is convexly equipped in the banking stop of described installed surface.
Wherein in some embodiments, the quantity of described aspirating hole is one.
Wherein in some embodiments, the quantity of described aspirating hole is multiple, and the plurality of aspirating hole is uniformly distributed in
On described installed surface.
Wherein in some embodiments, described main body also include at least one groove of being opened on described installed surface and
It is arranged at the sealing strip in described groove.
Wherein in some embodiments, the quantity of described groove is one, and described groove is closed ring.
Wherein in some embodiments, described optical element fixture also includes that flange, described flange are fixedly installed on institute
State on the joint face of main body, and on described flange, position corresponding to described aspirating hole offers through with described aspirating hole logical
Hole.
Wherein in some embodiments, described main part and described limiting section are one-body molded, described main part and described
Limiting section is made up of duralumin material or engineering plastics.
Embodiment of the present invention provides the benefit that: the optical element fixture of embodiment of the present invention, by by optics unit
Part is positioned on installed surface, carries out spacing by limiting section to optical element, and by aspirating hole by optical element and installed surface
Between evacuating air so that optical element is firmly arranged on installed surface, and then ensure that the height of described optical element
Precision is processed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the optical element fixture of embodiment of the present invention.
Fig. 2 is the schematic cross-section of optical element fixture described in Fig. 1.
Fig. 3 be the optical element fixture of embodiment of the present invention be installed optical element time schematic cross-section.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole realities
Execute mode.Based on the embodiment in the present invention, those of ordinary skill in the art are institute under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
What deserves to be explained is, in the present invention, unless otherwise clearly defined and limited, term " is installed ", " setting ",
" connect " or the term such as " fixing " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or one
Body ground connects；Can be to be mechanically connected, it is also possible to be electricity adjunction；Can be to be directly connected to, it is also possible to indirect by intermediary element
It is connected, it is also possible to be the connection of two element internals.For the ordinary skill in the art, can be as the case may be
Understand above-mentioned term concrete meaning in the present invention.
Fig. 1 and Fig. 2 is structural representation and the schematic cross-section of the optical element fixture of embodiment of the present invention, optics unit
Part fixture 100 includes main body 101 and the limiting section 103 being convexly equipped in main body 101.
In embodiment of the present invention, main body 101 substantially patty, so that optical element fixture 100 is used for clamping outside
Profile is circular optical element.It is understood that main body 101 can also be other shapes, the shape of main body 101 is according to institute
The shape of the optical element that need to be processed selects.
Main body 101 includes installed surface 1011 and the joint face 1013 relative with installed surface 1011.Installed surface 1011 is used for filling
Block optical element to be processed, and the contacting with installed surface 1011 of the shape of installed surface 1011 and radian and described optical element
The shape on surface identical with radian, so that described optical element can closely be arranged on installed surface 1011.Joint face
1013 for being attached with process equipment, so that described process equipment drives optical element fixture 100 to work.
Limiting section 103 is convexly equipped on the installed surface 1011 of main body 101, when described optical element is arranged at the peace of main body 101
During dress face 1011, limiting section 103 is used for limiting the side adjacent with the surface that installed surface 1011 contacts of described optical element,
So that described optical element can not be arranged on the installed surface 1011 of main body 101 with moving horizontally.Limiting section 103 remotely mounted
The surface in face 1011 is less than the finished surface of described optical element, and to avoid adding described optical element man-hour, limiting section 103 hinders
Hinder the course of processing of described optical element.
In embodiment of the present invention, limiting section 103 is to away from joint face from the circular edge of circular installed surface 1011
The direction of 1013 extends the toroidal formed.It is understood that limiting section 103 can not also be complete toroidal,
Such as limiting section 103 can include that multiple interval is convexly equipped in the curved banking stop of installed surface 1011, the plurality of curved
Banking stop and multiple banking stop between interval combination formed toroidal, when limiting section 103 is by multiple spaced limits
When bit slice combination is formed, using optical element fixture 100 optical element that is installed when being processed, the scrap that processing produces can lead to
Cross interval between multiple banking stop to discharge, it is to avoid scrap snaps between limiting section 103 and optical element, causes optical element
Machining accuracy reduces.It is understood that the shape of limiting section 103 is not limited to circular, the shape of limiting section 103 can basis
The shape design of optical element to be processed, such as when the side adjacent with the surface that installed surface 1011 contacts of described optical element
When face is shaped as square, the shape of limiting section 103 is designed as being convexly equipped in the rectangular wall of installed surface 1011, so that described optical element
Side be limited in limiting section 103.
Main body 101 also includes being opened in main body 101 and the aspirating hole 1015 of through installed surface 1011 and joint face 1013,
After optical element is positioned over installed surface 1011, by aspirating hole 1015 by the sky between described optical element and installed surface 1011
Gas evacuation, so that described optical element is firmly arranged on installed surface 1011, it is ensured that follow-up add described optical element
The machining accuracy in man-hour.It is understood that the quantity of aspirating hole 1015 is not limited to one, the quantity of aspirating hole 1015 is at least
One, multiple aspirating holes 1015 can be uniformly distributed or non-uniform Distribution is on installed surface 1011.
Main body 101 can also include the groove 1017 being opened on installed surface 1011 and the sealing being arranged in groove 1017
Bar 1018.After sealing strip 1018 is arranged at groove 1017, the surface of sealing strip 1018 is concordant with installed surface 1011, or sealing strip
The surface dimpling of 1018 goes out installed surface 1011.After optical element is positioned over installed surface 1011, by aspirating hole 1015 by described
Evacuating air between optical element and installed surface 1011, owing to the surface of sealing strip 1018 is concordant with installed surface 1011 or
Dimpling goes out installed surface 1011, during evacuation, sealing strip 1018 can be made to have small elastic deformation, so that described optical element
Can more stably be arranged on installed surface 1011.
In embodiment of the present invention, groove 1017 is closed ring groove, it is to be understood that groove 1017 can also bar
Other shapes such as shape or open loop-shaped.In embodiment of the present invention, the quantity of groove 1017 is one, it is to be understood that
The quantity of groove 1017 is not limited to one, and the quantity of groove 1017 can be at least one, when the quantity of groove 1017 is multiple
Time, multiple grooves 1017 are arranged at intervals on installed surface 1011.
In embodiment of the present invention, main body 101 and the one-body molded preparation of limiting section 103, and main body 101 and limiting section 103
It is made up of hard and light materials such as duralumin material or engineering plastics；Sealing strip 1018 is made up of elastomeric material elastomeric material.
Fig. 3 be use embodiment of the present invention optical element fixture 100 be installed optical element 200 time cross section signal
Figure.Use optical element fixture 100 be installed optical element 200 time, the surface relative with machined surface of optical element 200 is positioned over
On the installed surface 1011 of optical element fixture 100, and the side adjacent with machined surface of optical element 200 connects with limiting section 103
Touch, stop optical element 200 to move along installed surface 1011；Air-extractor and is installed optical element 200 by aspirating hole 1015
Evacuating air between face 1011, so that optical element 200 is firmly arranged on installed surface 1011.
Please continue to refer to Fig. 3, optical element fixture 100 can also include that flange 105, flange 105 are fixedly installed on main body
On the joint face 1013 of 101, and on flange 105, position corresponding to aspirating hole 1015 offers through with aspirating hole 1015 logical
Hole, to prevent flange 105 from blocking aspirating hole 1015.Optical element fixture 100 is attached with process equipment by flange 105.
The optical element fixture 100 of embodiment of the present invention, by being positioned over optical element and optical element arc phase
On same installed surface 1011, by limiting section 103, optical element is carried out spacing, and by aspirating hole 1015 by optical element
Evacuating air between 200 and installed surface 1011, so that optical element is firmly arranged on installed surface 1011, and then ensures
The high accuracy processing of described optical element.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or are directly or indirectly used in what other were correlated with
Technical field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. an optical element fixture, for clamping optical element to be processed, it is characterised in that include main body and limit
Position portion, described main body includes installed surface and the joint face relative with described installed surface, and described limiting section is convexly equipped in described installed surface
On, described main body offers at least one aspirating hole of through described installed surface and described joint face；Described optical element sets
It is placed on described installed surface, and the surface away from described installed surface of described limiting section is less than the processing table of described optical element
Face.
Optical element fixture the most according to claim 1, it is characterised in that the radian of described installed surface and described optics unit
The radian with the surface that described installed surface contacts of part is identical.
Optical element fixture the most according to claim 1, it is characterised in that described main body is patty, described limiting section
For annular.
Optical element fixture the most according to claim 1, it is characterised in that the multiple interval of described limiting section is convexly equipped in described
The banking stop of installed surface.
Optical element fixture the most according to claim 1, it is characterised in that the quantity of described aspirating hole is one.
Optical element fixture the most according to claim 1, it is characterised in that the quantity of described aspirating hole is multiple, described
Multiple aspirating holes are uniformly distributed on described installed surface.
Optical element fixture the most according to claim 1, it is characterised in that described main body also includes being opened in described installation
At least one groove on face and the sealing strip being arranged in described groove.
Optical element fixture the most according to claim 7, it is characterised in that the quantity of described groove is one, and described
Groove is closed ring.
Optical element fixture the most according to claim 1, it is characterised in that described optical element fixture also includes flange,
Described flange is fixedly installed on the joint face of described main body, and on described flange, position corresponding to described aspirating hole offers
The through hole through with described aspirating hole.
Optical element fixture the most according to claim 1, it is characterised in that described main part and described limiting section one
Molding, described main part and described limiting section are made up of duralumin material or engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976536.6A CN106312745A (en) | 2016-11-07 | 2016-11-07 | Optical element holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610976536.6A CN106312745A (en) | 2016-11-07 | 2016-11-07 | Optical element holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106312745A true CN106312745A (en) | 2017-01-11 |
Family
ID=57816857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610976536.6A Pending CN106312745A (en) | 2016-11-07 | 2016-11-07 | Optical element holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106312745A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB720887A (en) * | 1952-04-16 | 1954-12-29 | Kodak Ltd | Improvements in or relating to lens chucks |
| CN104139326A (en) * | 2014-07-29 | 2014-11-12 | 中国科学院长春光学精密机械与物理研究所 | Vacuum clamp for centering optical element in machining process |
| CN104759964A (en) * | 2015-03-25 | 2015-07-08 | 中国科学院长春光学精密机械与物理研究所 | Deformation processing method for optical aspheric element |
| US20150217420A1 (en) * | 2014-02-03 | 2015-08-06 | Optotech Optikmaschinen Gmbh | Lens retaining device for retaining a raw lens in a processing machine, and method for processing raw lenses |
| CN105228795A (en) * | 2013-10-29 | 2016-01-06 | 奥林巴斯株式会社 | Lens holding apparatus |
| CN105552695A (en) * | 2015-12-21 | 2016-05-04 | 中国科学院长春光学精密机械与物理研究所 | Optical element water-cooling apparatus used in vacuum environment |
-
2016
- 2016-11-07 CN CN201610976536.6A patent/CN106312745A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB720887A (en) * | 1952-04-16 | 1954-12-29 | Kodak Ltd | Improvements in or relating to lens chucks |
| CN105228795A (en) * | 2013-10-29 | 2016-01-06 | 奥林巴斯株式会社 | Lens holding apparatus |
| US20150217420A1 (en) * | 2014-02-03 | 2015-08-06 | Optotech Optikmaschinen Gmbh | Lens retaining device for retaining a raw lens in a processing machine, and method for processing raw lenses |
| CN104139326A (en) * | 2014-07-29 | 2014-11-12 | 中国科学院长春光学精密机械与物理研究所 | Vacuum clamp for centering optical element in machining process |
| CN104759964A (en) * | 2015-03-25 | 2015-07-08 | 中国科学院长春光学精密机械与物理研究所 | Deformation processing method for optical aspheric element |
| CN105552695A (en) * | 2015-12-21 | 2016-05-04 | 中国科学院长春光学精密机械与物理研究所 | Optical element water-cooling apparatus used in vacuum environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |
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| RJ01 | Rejection of invention patent application after publication |