CN104808305A - Optical element center positioning and adjusting mechanism using double-eccentric-circle principle - Google Patents
Optical element center positioning and adjusting mechanism using double-eccentric-circle principle Download PDFInfo
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- CN104808305A CN104808305A CN201510220471.8A CN201510220471A CN104808305A CN 104808305 A CN104808305 A CN 104808305A CN 201510220471 A CN201510220471 A CN 201510220471A CN 104808305 A CN104808305 A CN 104808305A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 39
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 239000013307 optical fiber Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000012913 prioritisation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/003—Alignment of optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
An optical element center positioning and adjusting mechanism using the double-eccentric-circle principle is structurally characterized in that the circle center of a basic disc is disposed on an optical theoretical axis, a secondary disc is disposed on the inner circle of the basic disc, and the eccentric distance between the inner circle of the basic disc and the outer circle of the basic disc is L3; the outer circle of a clamping disc is disposed on the inner circle of the secondary disc, and the eccentric distance between the inner circle of the secondary disc and the outer circle of the secondary disc is L2; a clamping point is disposed on the inner circle of the clamping disc, and the eccentric distance between the clamping point and the circle center of the clamping disc is L1. The optical element center positioning and adjusting mechanism has the advantages that the position of an optical fiber head can be accurately placed at system focal points, the guide rail and the adjusting screw of a conventional adjusting mechanism are omitted by an optimized locking mechanism, and adjusting is achieved only by using concentric circle rotation; space can be saved while cost is lowered in special occasions.
Description
Technical field
The present invention relates to a kind of optical system adjusting mechanism, be specifically related to a kind of center of optical element location adjusting mechanism utilizing two off-centre operation principle.
Background technology
In optical system adjustment process, often need a certain element to adjust on optical axis.Namely the center of element and system centre consistent.Generally each element is arranged on optical adjusting frame, as required, is adjusted position and the attitude of element by independent adjustment screw and guide rail; The i.e. displacement of three different directions and the corner around three coordinate axis in space.When some is special, as locus cannot hold the placement of adjustment rack, the method for adjustment using some special is just needed to carry out position adjustment to element.Such as, the optical fiber technology be widely used gradually at present, often needs a kind of mechanism to be accurately placed in system focus the position of optical fiber head; And in some specific occasion, prior art not yet has the technical scheme that satisfactorily can complete above-mentioned task.
Summary of the invention
in order to make up the above-mentioned deficiency of prior art, the object of this invention is to provide a kind of center of optical element location adjusting mechanism utilizing two off-centre operation principle, this mechanism can complete above-mentioned being accurately placed into the position of optical fiber head in system focus of task, and the guide rail eliminated in conventional adjustment mechanisms and adjustment screw, only utilize concentric circles to rotate and reach adjustment object.Can space be saved in specific occasion, reduce costs simultaneously.
The technical scheme completing foregoing invention task is, a kind of center of optical element location adjusting mechanism utilizing two off-centre operation principle, and it is characterized in that, the structure of this location adjusting mechanism is as follows:
The center of circle on basis disk (also referred to as parts 3) is arranged on optical theory axis, and in this basic disk, unit is provided with secondary disk (also referred to as parts 2), the eccentric throw between this basic disk inner circle and basic disk cylindrical is L3;
The cylindrical of clamp circle disk (also referred to as parts 1) is arranged in the interior unit of described secondary disk, and the eccentric throw between this secondary disk inner circle and secondary disk cylindrical is L2;
In described clamp circle disk, unit is provided with bite, the eccentric throw between this bite and the clamp circle disk center of circle is L1.
In order to reduce mechanism size as far as possible, the parts used in mechanism simplify as possible.Use simple diameter to, axial location method between parts, the method location effectively, accurately.Namely clamp circle disk (parts 1) is installed by the corresponding inner circle and end face having the cylindrical coordinating and require and the end face having verticality to require to cylindrical and secondary disk (parts 2), is locked after completing adjustment by end face and radial lock-screw.In like manner, secondary disk (parts 2) uses same installation and locking method with basic disk (parts 3).
On described bite, grip optical fiber is the hole by offering size corresponding to optical fiber head on clamp circle disk, uses only head nail pressed fiber head after optical fiber head penetrates this hole.Another kind method uses clip to block optical fiber head.
Described L1, L2, L3 can be arranged by adjustment amount as required.Its cardinal rule is that two broken circles drawn by degree of eccentricity in Fig. 1 have intersection point, can ensure the accuracy adjusted like this.
In other words, the present invention is a kind of constructional device be accurately placed into the position of optical fiber head in optical system adjustment in optical system focus.This mechanical work principle is shown in accompanying drawing 1; Mechanism is made up of three critical pieces, needs the optical fiber head of adjustment to be clamped in clamp circle disk 1(parts 1) on, bite 4 and clamp circle disk 1(parts 1) there is an eccentric throw L1 in the center of circle.The cylindrical of clamp circle disk 1 is arranged on secondary disk 2(parts 2) inner circle in, the outer fenestra of this interior unit and secondary disk 2 has an eccentric throw L2.Secondary disk 2 is arranged on basic disk 3(parts 3) inner circle in, equally, this inner circle and cylindrical have eccentric throw L3.The cylindrical center O of basis disk 3 is on optical theory axis.By rotating clamp circle disk 1, can see that the movement locus of optical fiber head needing adjustment is broken circle X1, with the spacing of the secondary disk 2 cylindrical center of circle and theoretical center O for radius, drawing broken circle X2.X1 and X2 gives a P mutually.When secondary disk 2 rotates in basic disk 3 endoporus, P point must rotate to theoretical center O.Namely optical fiber head can adjust to accurate location.
In prioritization scheme, the present invention is provided with locking device, and applicant recommends, and this locking device can adopt following structure:
At clamp circle disk and secondary disk (parts 1,2) screw hole and unthreaded hole is stamped respectively on, steel ball 7 or circular steel column is loaded by the radial direction of the screw 1 on clamp circle disk, when utilizing axial bolt backspin, steel ball is pressed against the inner circle that cylindrical oppresses another parts, thus completes the radial locking function of formation mechanism.Screw on secondary disk 28 and major part screw 9(is utilized to see Fig. 3) can the axially effective locking function of formation mechanism.This major part screw 9 is than plain screw end face 10 is larger and end face and screw axis have verticality to require and smoothness requirements is stricter.In like manner, the mutual locking function of this two-stage can be completed by the screw 28 on basic disk 3 and the screw 1 on secondary disk 2.Therefore this mechanism is a kind of complete centralized positioning adjusting mechanism.
Unthreaded hole 6 on clamp circle disk and secondary disk (parts 1,2) can insert pole accessory and rotate when adjusting.
The present invention can complete above-mentioned being accurately placed into the position of optical fiber head in system focus of task, and the guide rail eliminated in conventional adjustment mechanisms and adjustment screw, only utilize concentric circles to rotate and reach adjustment object.Can space be saved in specific occasion, reduce costs simultaneously.The latch mechanism of prioritization scheme eliminates the guide rail in conventional adjustment mechanisms and adjusts screw, only utilizes concentric circles to rotate and reaches adjustment object.Can space be saved in specific occasion, reduce costs simultaneously.
Accompanying drawing explanation
Fig. 1 is the principle of the invention and structural representation;
Figure series is locking device structure schematic diagram in the present invention; Wherein, Fig. 2 a, Fig. 2 b are the view of clamp circle disk both direction; Fig. 2 c, Fig. 2 d are the view of secondary disk both direction; Disk based on Fig. 2 e;
Fig. 3 is the structural representation of the major part screw improved.
Embodiment
Embodiment 1, utilize the center of optical element location adjusting mechanism of two off-centre operation principle, with reference to Fig. 1, Fig. 2: mechanism is made up of three critical pieces, need the optical fiber head of adjustment to be clamped on clamp circle disk 1, there is an eccentric throw L1 in bite 4 and clamp circle disk 1 center of circle.The cylindrical of clamp circle disk 1 is arranged in the inner circle of secondary disk 2, and the outer fenestra of this interior unit and secondary disk 2 has an eccentric throw L2.Secondary disk 2 is arranged in the inner circle of basic disk 3, and equally, this inner circle and cylindrical have eccentric throw L3.The cylindrical center of basis disk 3 is in optical theory axes O.By rotating clamp circle disk 1, can see that the movement locus of optical fiber head needing adjustment is broken circle X1, with the spacing of the secondary disk 2 cylindrical center of circle and theoretical center O for radius, drawing broken circle X2.X1 and X2 gives a P mutually.When secondary disk 2 rotates in basic disk 3 endoporus, P point must rotate to theoretical center.Namely optical fiber head can adjust to accurate location.Clamp circle disk 1 with secondary disk 2 stamp screw hole and unthreaded hole 6 respectively, steel ball 7 or circular steel column is loaded by the radial direction of the screw 1 on clamp circle disk, when utilizing axial bolt backspin, steel ball is pressed against the inner circle that cylindrical oppresses another parts, thus completes the radial locking function of formation mechanism.Screw on secondary disk 228 and major part screw 9(is utilized to see Fig. 3) can the axially effective locking function of formation mechanism.The present invention recommends to adopt the screw 9 improved, and this major part screw 9 is larger than plain screw end face 10, and this end face 10 and the verticality of screw axis and the requirement of smooth finish stricter.In like manner, the mutual locking function of this two-stage can be completed by the screw 28 on basic disk and the screw 1 on secondary disk.Therefore this mechanism is a kind of complete centralized positioning adjusting mechanism.Clamp circle disk 1 can insert pole accessory with the unthreaded hole 6 on secondary disk 2 and rotate when adjusting.
Claims (6)
1. utilize a center of optical element location adjusting mechanism for two off-centre operation principle, it is characterized in that, the structure of this location adjusting mechanism is as follows:
The center of circle of basis disk is arranged on optical theory axis, and in this basic disk, unit is provided with secondary disk, the eccentric throw between this basic disk inner circle and basic disk cylindrical is L3;
The cylindrical of clamp circle disk is arranged in the interior unit of described secondary disk, and the eccentric throw between this secondary disk inner circle and secondary disk cylindrical is L2;
In described clamp circle disk, unit is provided with bite, the eccentric throw between this bite and the clamp circle disk center of circle is L1.
2. the center of optical element location adjusting mechanism of the two off-centre operation principle of utilization according to claim 1, it is characterized in that, the concrete set-up mode of described bite is: by opening the hole of size corresponding to optical fiber head on clamp circle disk, after optical fiber head penetrates this hole, use only head screw in compression optical fiber head, or use clip to block optical fiber head.
3. the center of optical element location adjusting mechanism of the two off-centre operation principle of utilization according to claim 1, it is characterized in that, the determination principle of described proportionate relationship between L1, L2, L3 is: two broken circles drawn by degree of eccentricity have intersection point, to ensure the accuracy adjusted.
4. according to the center of optical element location adjusting mechanism of the two off-centre operation principle of the utilization one of claim 1-3 Suo Shu, it is characterized in that, also be provided with locking device, this locking device adopts following structure: on clamp circle disk, secondary disk and basic disk, stamp screw hole and unthreaded hole respectively, steel ball or circular steel column is loaded by the radial direction of the screw on clamp circle disk, when utilizing axial bolt backspin, steel ball is pressed against the inner circle that cylindrical oppresses another parts, completes the radial locking function of mechanism; Utilize the axial locking function of screw on secondary disk and major part screw shaped cost mechanism.
5. the center of optical element location adjusting mechanism of the two off-centre operation principle of utilization according to claim 4, it is characterized in that, installation and the locking method of described clamp circle disk and described secondary disk are: use diameter to, axial location method between parts: clamp circle disk is installed by the corresponding inner circle of the end face that has the cylindrical that coordinates and require and have verticality to require with cylindrical and secondary disk and end face, is locked after completing adjustment by end face and radial lock-screw.
6. the center of optical element location adjusting mechanism of the two off-centre operation principle of utilization according to claim 4, it is characterized in that, installation and the locking method of described secondary disk and described basic disk are: secondary disk is installed by the corresponding inner circle of the end face that has the cylindrical that coordinates and require and have verticality to require with cylindrical and basic disk and end face, is locked after completing adjustment by end face and radial lock-screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220471.8A CN104808305B (en) | 2015-05-04 | 2015-05-04 | Optical element center positioning and adjusting mechanism using double-eccentric-circle principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220471.8A CN104808305B (en) | 2015-05-04 | 2015-05-04 | Optical element center positioning and adjusting mechanism using double-eccentric-circle principle |
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| CN104808305A true CN104808305A (en) | 2015-07-29 |
| CN104808305B CN104808305B (en) | 2017-04-12 |
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| CN201510220471.8A Expired - Fee Related CN104808305B (en) | 2015-05-04 | 2015-05-04 | Optical element center positioning and adjusting mechanism using double-eccentric-circle principle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127279A (en) * | 2017-06-28 | 2019-01-04 | 大族激光科技产业集团股份有限公司 | Glue-pouring method, equipment and storage medium |
| CN111381335A (en) * | 2018-12-28 | 2020-07-07 | 中国科学院长春光学精密机械与物理研究所 | Light path component alignment device used in optical system |
| CN111381334A (en) * | 2018-12-28 | 2020-07-07 | 中国科学院长春光学精密机械与物理研究所 | Alignment method for optical path component in optical system |
| CN113084735A (en) * | 2021-04-25 | 2021-07-09 | 北京无线电测量研究所 | Eccentric adjustment mechanism of many adaptability |
| CN114233988A (en) * | 2021-12-13 | 2022-03-25 | 北京微纳星空科技有限公司 | Double-eccentric adjusting mechanism |
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| JPS59218337A (en) * | 1983-05-26 | 1984-12-08 | Nippon Piston Ring Co Ltd | Control method for number of cylinders varying system |
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| CN1266196A (en) * | 1999-03-04 | 2000-09-13 | 中国科学院半导体研究所 | Coupling method for coaxial semiconductor luminous device |
| JP4294806B2 (en) * | 1999-08-23 | 2009-07-15 | 株式会社Ｉｈｉ | Optical element angle adjustment device for optical equipment |
| CN103901816A (en) * | 2014-04-15 | 2014-07-02 | 长春市市政工程设计研究院 | Double eccentric circle mechanism with transmission shaft circle center adjustable in position |
| CN104384562A (en) * | 2014-10-20 | 2015-03-04 | 芜湖市泰能电热器具有限公司 | Rotary positioning drilling clamp |
| CN104442191A (en) * | 2014-12-12 | 2015-03-25 | 西南大学 | Obstacle surmounting wheel with double eccentric circles and variable eccentric distances |
-
2015
- 2015-05-04 CN CN201510220471.8A patent/CN104808305B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59218337A (en) * | 1983-05-26 | 1984-12-08 | Nippon Piston Ring Co Ltd | Control method for number of cylinders varying system |
| CN1067841A (en) * | 1992-05-29 | 1993-01-13 | 李庆元 | A kind of rotary plain location method and device |
| CN1266196A (en) * | 1999-03-04 | 2000-09-13 | 中国科学院半导体研究所 | Coupling method for coaxial semiconductor luminous device |
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| CN103901816A (en) * | 2014-04-15 | 2014-07-02 | 长春市市政工程设计研究院 | Double eccentric circle mechanism with transmission shaft circle center adjustable in position |
| CN104384562A (en) * | 2014-10-20 | 2015-03-04 | 芜湖市泰能电热器具有限公司 | Rotary positioning drilling clamp |
| CN104442191A (en) * | 2014-12-12 | 2015-03-25 | 西南大学 | Obstacle surmounting wheel with double eccentric circles and variable eccentric distances |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127279A (en) * | 2017-06-28 | 2019-01-04 | 大族激光科技产业集团股份有限公司 | Glue-pouring method, equipment and storage medium |
| CN111381335A (en) * | 2018-12-28 | 2020-07-07 | 中国科学院长春光学精密机械与物理研究所 | Light path component alignment device used in optical system |
| CN111381334A (en) * | 2018-12-28 | 2020-07-07 | 中国科学院长春光学精密机械与物理研究所 | Alignment method for optical path component in optical system |
| CN111381334B (en) * | 2018-12-28 | 2021-06-15 | 中国科学院长春光学精密机械与物理研究所 | Alignment method for optical path component in optical system |
| CN111381335B (en) * | 2018-12-28 | 2021-06-15 | 中国科学院长春光学精密机械与物理研究所 | Light path component alignment device used in optical system |
| CN113084735A (en) * | 2021-04-25 | 2021-07-09 | 北京无线电测量研究所 | Eccentric adjustment mechanism of many adaptability |
| CN114233988A (en) * | 2021-12-13 | 2022-03-25 | 北京微纳星空科技有限公司 | Double-eccentric adjusting mechanism |
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| CN104808305B (en) | 2017-04-12 |
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