CN207752208U - A kind of camera adjusting component - Google Patents

A kind of camera adjusting component Download PDF

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Publication number
CN207752208U
CN207752208U CN201721717045.6U CN201721717045U CN207752208U CN 207752208 U CN207752208 U CN 207752208U CN 201721717045 U CN201721717045 U CN 201721717045U CN 207752208 U CN207752208 U CN 207752208U
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CN
China
Prior art keywords
lens barrel
adjustment
outer lens
barrel
rack
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.)
Expired - Fee Related
Application number
CN201721717045.6U
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Chinese (zh)
Inventor
陈萩林
王新伟
钟家跃
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing East Optoelectronic Technology Co Ltd
Original Assignee
Nanjing East Optoelectronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing East Optoelectronic Technology Co Ltd filed Critical Nanjing East Optoelectronic Technology Co Ltd
Priority to CN201721717045.6U priority Critical patent/CN207752208U/en
Application granted granted Critical
Publication of CN207752208U publication Critical patent/CN207752208U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of camera adjusting component, is characterized in that:Including outer lens barrel, eyepiece is installed at the top of the outer lens barrel, inner lens cone is equipped in the outer lens barrel, the bottom of the inner lens cone is equipped with object lens, and the outer lens barrel is equipped with the rack and rinion adjustment for adjusting object lens and eyepiece distance;The rack and rinion adjustment includes the gag lever post positioned at outer lens barrel inner wall, and the outer wall of the inner lens cone is extended with the bulge loop for being bonded outer lens barrel inner wall sliding, runs through the through-hole for being equipped with and sliding being passed through and be bonded for gag lever post on the bulge loop;The outer lens barrel inner wall is rotatably connected to lead screw along length direction, runs through on the bulge loop and is equipped with the threaded hole that screw mandrel passes through;The rack and rinion adjustment further includes the driving mechanism for driving lead screw to rotate, and the adjustment barrel is equipped with the micromatic setting for being finely adjusted to object lens and eyepiece distance, by rack and rinion adjustment and micromatic setting flexible modulation object lens and eyepiece spacing.

Description

A kind of camera adjusting component
Technical field
The utility model is related to optical instrument fields, and in particular to a kind of camera adjusting component.
Background technology
Astronomy is built upon the science on observation basis.At the beginning of astronomical observation, astronomer is visible to human eye bright Bright photostar is observed research.With gradually going deep into for science, astronomer begins one's study, and those are farther apart from the earth, Also the sightless celestial body of darker naked eyes then starts by telescope, is initially formula monocular of joining(Referred to as, it reflects Formula telescope)It is the reflective astronomical telescope of newton therewith.
With the gradually development of astronomical science theory, the fast development of astronomical instrument is also greatly facilitated, especially to light Signal responds and its sensitive photoelectric device.Since the refraction to optical signal of air can cause photoelectric device to light type difference The influence of degree causes photoelectric instrument to receive the mistake of optical signal.The air aberration corrects mirror and has modified air well to light Refractive effect.
Currently, disclosing a kind of air aberration amendment mirror, including mirror in the Chinese patent that notification number is CN205844603U Cylinder, air aberration correct mirror, the first wedge mirror, the second wedge mirror, filter frame, frame set and handle, first, second wedge Mirror is arranged on filter frame, and the first, second wedge mirror interval is arranged and rotatably, the filter frame setting is in frame set, filter Frame can rotate in frame set, and the frame is arranged with swivelling chute, and the handle is arranged on filter frame, and passes through swivelling chute It stretches out, handle can move in swivelling chute.The air aberration amendment mirror of the utility model is light and handy, uses simple, convenient, Neng Goushi For various astrophotography equipment;In addition, it is with obvious effects to the Refractive correction of light, the rotation of wedge mirror can be intuitively found out Angle.
Said program can rotation angle that only adjustable eyeglass is located in the same horizontal plane, the spacing between eyeglass and eyeglass It is non-adjustable.
Utility model content
The purpose of this utility model is to provide a kind of camera adjusting component, has the advantage that:Can between the spacing eyeglass into Row is more flexible to be adjusted.
The above-mentioned technical purpose of the utility model technical scheme is that:A kind of camera adjusting group Part, including outer lens barrel are equipped with eyepiece at the top of the outer lens barrel, inner lens cone are equipped in the outer lens barrel, the inner lens cone Bottom is equipped with object lens, and the outer lens barrel is equipped with the rack and rinion adjustment for adjusting object lens and eyepiece distance;
The rack and rinion adjustment includes the gag lever post positioned at outer lens barrel inner wall, and the gag lever post is along the length side of outer lens barrel To setting, the outer wall of the inner lens cone is extended with the bulge loop for being bonded outer lens barrel inner wall sliding, runs through on the bulge loop and is equipped with for limit Position bar passes through and is bonded the through-hole of sliding;
The outer lens barrel inner wall is rotatably connected to lead screw along length direction, runs through on the bulge loop and is worn equipped with screw mandrel The threaded hole crossed;
The rack and rinion adjustment further includes the driving mechanism for driving lead screw to rotate.
By using above-mentioned technical proposal, the relatively outer lens barrel slip of inner lens cone, only need to by driving mechanism rotary screw rod, The bulge loop being connect with wire rod thread is under the position-limiting action of gag lever post, you can drive risen or fallen with bulge loop, you can drive and The inner lens cone of bulge loop connection move relative to outer lens barrel, and the adjusting of lead screw is stable and precision, is convenient for flexible modulation eyepiece and object lens Relative position.
Preferably, the driving mechanism includes the ring block being fixedly connected on lead screw, the ring block is perpendicular to lead screw It is equipped with ring rack on one side, the ring rack is radial along ring block center, and the outer lens barrel side is equipped with perpendicular to outer lens barrel Adjustment barrel is rotatably connected to adjustment axis in the adjustment barrel, and one end that the adjustment axis is located in outer lens barrel is fixedly connected with ring The bevel gear of rack engagement.
By using above-mentioned technical proposal, the ring block coaxially connected with lead screw can be engaged by ring rack with bevel gear, It can be rotated with dynamic bevel gear by rotating adjustment axis manually, to drive ring racks turn, and then drive lead screw rotation, lead screw Forward or backwards rotation inner lens cone can be driven to achieve the effect of operation readiness relative to the movement of outer lens barrel.
Preferably, one end that the adjustment axis is located at outside outer lens barrel is fixedly connected with coarse adjustment handle, the coarse adjustment Handle is externally provided with flank.
By using above-mentioned technical proposal, coarse adjustment handle and adjustment axis are coaxially connected, and the diameter of coarse adjustment handle is more than Adjustment axis is convenient for user's turn, the flank outside coarse adjustment handle to increase frictional force, when preventing user's turn from operating Slipping phenomenon.
Preferably, the adjustment barrel is equipped with the micromatic setting for being finely adjusted to object lens and eyepiece distance, it is described Micromatic setting includes the petal gear coaxially connected with adjustment axis, and the adjustment barrel inner wall is rotatably connected to driving round block, described Driving round block is extended with sliding axle, the outer wall slip of sliding axle fitting petal gear on one side close to petal gear.
By using above-mentioned technical proposal, because eyepiece and object lens imaging need to focus, when focusing, needs to eyepiece and object lens Spacing carry out subtleer adjusting, sliding axle is located at the edge of driving round block, and staff only needs turn to drive round block, sliding Moving axis can generate circular rotary motion trace, during sliding axle rotates, petal gear side edge is bonded, to drive petal tooth Wheel rotation, and then drive and rotated with the coaxially connected adjustment axis of petal gear, because the turn driving circle of round block one can just drive adjusting The small angle of axis turn, thus it is more accurate to the adjusting of adjustment axis.
Preferably, the one end of the adjustment barrel far from outer lens barrel is rotatably connected to fine adjustment handle, the fine adjustment hand Handle being fixedly connected on one side away from sliding axle with driving round block.
By using above-mentioned technical proposal, direct turn driving round block operation is more inconvenient, passes through the fine adjustment hand added Handle drives internal driving round block outside adjustment barrel convenient for staff, improves simple operation.
Preferably, being equipped with the annular groove stretched out for coarse adjustment handle in the middle part of the adjustment barrel, the adjustment barrel is equipped with position Connection frame between annular groove, the connection frame are located at outside coarse adjustment handle and are bonded the sliding of coarse adjustment handle.
By using above-mentioned technical proposal, because rack and rinion adjustment, driving device, micromatic setting are all located at outer lens barrel and adjustment barrel Interior, coarse adjustment handle stretches out a part, operation of the person easy to operation to coarse adjustment handle from the annular groove at the middle part of adjustment barrel.
Preferably, the outer lens barrel side wall, which runs through, is equipped with location hole, the location hole internal thread is connected with positioning bolt, The positioning bolt is equipped with two groups, is located at the diametric both ends of outer lens barrel.
By using above-mentioned technical proposal, when having been adjusted to the spacing of object lens and eyepiece with micromatic setting by rack and rinion adjustment Bi Hou is observed, and screws the positioning bolt being threadedly coupled on outer lens barrel at this time so that positioning bolt end and inner lens cone Outer wall contradict, two groups of positioning bolts are respectively fixed inner lens cone and outer lens barrel from both sides, prevent accidentally tactile rack and rinion adjustment or Micromatic setting, and the spacing of object lens and eyepiece is caused to change, convenient for the long-time observation after fixed focal length.
Preferably, one end that the positioning bolt is located in outer lens barrel is fixedly connected with rubber pad.
By using above-mentioned technical proposal, the rubber pad added increases the frictional force of positioning bolt and inner lens cone, positioning Effect is more stable, and the rubber pad added has elasticity, scuffing caused by preventing positioning bolt from directly contradicting scope drum outer wall.
Preferably, being equipped with graduation mark outside the inner lens cone.
By using above-mentioned technical proposal, when object because observing certain fixed ranges, when spacing of object lens and eyepiece, is solid Fixed, after first time focuses, the spacing of object lens and eyepiece is can record, the graduation mark on inner lens cone is straight convenient for staff That sees records spacing, convenient operation.
In conclusion the utility model has the advantages that:
1, by driving mechanism rotary screw rod, the bulge loop being connect with wire rod thread is under the position-limiting action of gag lever post, you can Drive rises or falls with bulge loop, you can drive is moved with the inner lens cone that bulge loop connects relative to outer lens barrel, and the adjusting of lead screw is stablized And it is accurate, it is convenient for the relative position of flexible modulation eyepiece and object lens;
2, it rotates that petal gear is driven to rotate by the sliding axle of micromatic setting, and then drives adjustment axis rotation, because Turn driving round block one encloses the angle that just adjustment axis turn can be driven small, can carry out subtleer tune to eyepiece and object lens spacing Section.
Description of the drawings
Fig. 1 is the overall structure diagram of the present embodiment;
Fig. 2 is the schematic diagram for showing goggle structure in the present embodiment;
Fig. 3 is the structural schematic diagram for showing rack and rinion adjustment in the present embodiment;
Fig. 4 is the structural schematic diagram for showing driving mechanism in the present embodiment;
Fig. 5 is the enlarged drawing at A in Fig. 1;
Fig. 6 is the structural schematic diagram for showing micromatic setting in the present embodiment;
Fig. 7 is the structural schematic diagram for showing positioning bolt in the present embodiment.
Reference numeral:1, outer lens barrel;11, eyepiece;12, location hole;13, positioning bolt;131, rubber pad;2, inner lens cone; 21, object lens;22, graduation mark;3, rack and rinion adjustment;31, gag lever post;32, bulge loop;321, through-hole;322, threaded hole;33, lead screw;4、 Driving mechanism;41, ring block;42, ring rack;43, adjustment axis;44, bevel gear;45, coarse adjustment handle;451, flank;5, it adjusts Save cylinder;51, annular groove;52, frame is connected;6, micromatic setting;61, petal gear;62, round block is driven;621, sliding axle;63, it finely tunes Save handle.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment:A kind of camera adjusting component, as shown in Figure 1 and Figure 2, including outer lens barrel 1, the bottom of outer lens barrel 1 are equipped with Eyepiece 11, the interior inner lens cone 2 for being less than outer lens barrel 1 equipped with diameter of outer lens barrel 1, the top of inner lens cone 2 is equipped with object lens 21.
As shown in figure 3, being equipped in outer lens barrel 1 for adjusting object lens 21(With reference to figure 1)With the rack and rinion adjustment of 11 distance of eyepiece 3.Rack and rinion adjustment 3 includes the gag lever post 31 positioned at 1 inner wall of outer lens barrel, and gag lever post 31 is arranged along the length direction of outer lens barrel 1, The both ends of gag lever post 31 are fixedly connected on the inner wall of outer lens barrel 1.The outer wall of inner lens cone 2 is extended with wall slip in the outer lens barrel 1 of fitting Bulge loop 32, through being equipped with the through-hole 321 that sliding is passed through and be bonded for gag lever post 31 on bulge loop 32.1 inner wall of outer lens barrel is along itself Length direction is rotatably connected to lead screw 33, runs through on bulge loop 32 and is equipped with the threaded hole 322 that screw mandrel 33 passes through, and passes through and drives lead screw 33 rotations, the bulge loop 32 being threadedly coupled with lead screw 33 is under the position-limiting action of gag lever post 31, you can what drive was connect with bulge loop 32 Inner lens cone 2 is moved relative to outer lens barrel 1, and the adjusting of lead screw 33 is stable and accurate, is convenient for the phase of flexible modulation eyepiece 11 and object lens 21 To position.
As shown in figure 3, rack and rinion adjustment 3 further includes the driving mechanism 4 for driving lead screw 33 to rotate.1 side of outer lens barrel is set There are the adjustment barrel 5 perpendicular to outer lens barrel 1, driving mechanism to be located inside adjustment barrel 5.
As shown in figure 4, concealing adjustment barrel 5, driving mechanism 4 includes the ring block 41 being fixedly connected on lead screw 33, ring block 41 are equipped with ring rack 42 perpendicular to the one side of lead screw 33, and ring rack 42 is radial along 41 center of ring block, in adjustment barrel 5 rotation connect It is connected to adjustment axis 43, adjustment axis 43 is located at the bevel gear 44 that one end in outer lens barrel 1 is fixedly connected with the engagement of ring rack 42.With silk The coaxially connected ring block 41 of bar 33 can engage, by rotating adjustment axis 43 manually by ring rack 42 with bevel gear 44 Band dynamic bevel gear 44 rotates, and to which drive ring rack 42 rotates, and then lead screw 33 is driven to rotate, lead screw 33 turns forward or backwards It is dynamic that inner lens cone 2 can be driven relative to the movement of outer lens barrel 1.
As shown in figure 4, for ease of user's turn adjustment axis 43, adjustment axis 43 is located at one end outside outer lens barrel 1 and fixes company It is connected to coarse adjustment handle 45, coarse adjustment handle 45 is externally provided with the flank 451 for increasing friction force.Coarse adjustment handle 45 and tune Nodal axisn 43 is coaxially connected, and the diameter of coarse adjustment handle 45 is more than adjustment axis 43, and user's turn, flank 451 is convenient for prevent from beating It is sliding.
As shown in figure 5,5 middle part of adjustment barrel is equipped with the annular groove 51 stretched out for coarse adjustment handle 45, adjustment barrel 5, which is equipped with, to be located at Connection frame 52 between annular groove 51, connection frame 52 are located at outside coarse adjustment handle 45 and are bonded the sliding of coarse adjustment handle 45.Coarse adjustment hand Handle 45 stretches out a part, operation of the person easy to operation to coarse adjustment handle 45, adjustment barrel from the annular groove 51 at the middle part of adjustment barrel 5 5 can prevent exposed by structural defences such as adjustment axis 43 (with reference to figure 4) inside adjustment barrel 5, optimize structure.
As shown in Figure 4, Figure 5, because of eyepiece 11(With reference to figure 2)With object lens 21(With reference to figure 1)Imaging needs to focus, and needs when focusing Subtleer adjusting is carried out to the spacing of eyepiece 11 and object lens 21, thus adjustment barrel 5 is internally provided with for object lens 21 and mesh The micromatic setting 6 that 11 distance of mirror is finely adjusted.Micromatic setting 6 includes the petal gear 61 coaxially connected with adjustment axis 43, is adjusted 5 inner walls of cylinder are rotatably connected to driving round block 62, and driving round block 62 is located at the one end of adjustment barrel 5 far from outer lens barrel 1, drives round block 62 It is extended with sliding axle 621 on one side close to petal gear 61, sliding axle 621 is located at the edge of driving round block 62, and adjustment barrel 5 is separate One end of outer lens barrel 1 is rotatably connected to fine adjustment handle 63, and fine adjustment handle 63 is fixedly connected with the center of driving round block 62.
As shown in figure 5, fine adjustment handle 63 is located at outside adjustment barrel 5, person's turn easy to operation.
As shown in fig. 6, when turn fine adjustment handle 63 rotates, sliding axle 621 can generate circular rotary motion trace, sliding Moving axis 621 rotate during, the edge of petal gear 61 can be bonded, to drive petal gear 61 rotate, and then drive with The coaxially connected adjustment axis 43 of petal gear 61 rotates, because the turn driving circle of round block 62 1 can just drive 43 turn of adjustment axis small Angle, thus it is more accurate to the adjusting of adjustment axis 43.
As shown in fig. 7, when by rack and rinion adjustment 3(With reference to figure 3)With micromatic setting 6(With reference to figure 4)To object lens 21(Reference chart 1)With eyepiece 11(With reference to figure 2)Spacing adjust after, need carry out fixed-focus observed, for prevent accidentally touch rack and rinion adjustment 3, Micromatic setting 6 leads to focal length variations, and 1 side wall of outer lens barrel, which runs through, is equipped with location hole 12, and 12 internal thread of location hole is connected with positioning spiral shell Bolt 13, one end that positioning bolt 13 is located in outer lens barrel 1 are fixedly connected with rubber pad 131.Positioning bolt 13 is equipped with two groups, respectively Positioned at 1 diametric both ends of outer lens barrel.When needing fixed focal length, only the positioning bolt being threadedly coupled on outer lens barrel 1 need to be screwed 13 so that the outer wall of 13 end of positioning bolt and inner lens cone 2 contradicts, two groups of positioning bolts 13 respectively from both sides to inner lens cone 2 with Outer lens barrel 1 is fixed, convenient for the long-time observation after fixed focal length.The rubber pad 131 added increase positioning bolt 13 with The frictional force of inner lens cone 2, locating effect is more stable, and the rubber pad 131 added has elasticity, prevents positioning bolt 13 from directly supporting It is scratched caused by touching 2 outer wall of inner lens cone.
As shown in fig. 7, when object because observing certain fixed ranges, object lens 21(With reference to figure 1)With eyepiece 11(With reference to figure 2) Spacing when it is fixed, the outside of inner lens cone 2 is equipped with easy-to-read graduation mark 22.It, can be by graduation mark 22, just after focusing The reading of victory and the spacing for recording object lens 21 and eyepiece 11, gathered data.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (9)

1. a kind of camera adjusting component, it is characterised in that:Including outer lens barrel (1), eyepiece is installed at the top of the outer lens barrel (1) (11), inner lens cone (2) is equipped in the outer lens barrel (1), the bottom of the inner lens cone (2) is equipped with object lens (21), the epi mirror Cylinder (1) is equipped with the rack and rinion adjustment (3) for adjusting object lens (21) and eyepiece (11) distance;
The rack and rinion adjustment (3) includes the gag lever post (31) positioned at outer lens barrel (1) inner wall, and the gag lever post (31) is along outer lens barrel (1) length direction setting, the outer wall of the inner lens cone (2) are extended with the bulge loop of the fitting interior wall slip of outer lens barrel (1) (32), through equipped with the through-hole (321) that sliding is passed through and be bonded for gag lever post (31) on the bulge loop (32);
Outer lens barrel (1) inner wall is rotatably connected to lead screw (33) along length direction, runs through on the bulge loop (32) and is equipped with The threaded hole (322) that screw mandrel (33) passes through;
The rack and rinion adjustment (3) further includes for driving lead screw(33)The driving mechanism (4) of rotation.
2. a kind of camera adjusting component according to claim 1, it is characterised in that:The driving mechanism (4) includes fixing It is connected to lead screw(33)On ring block (41), the ring block (41) is perpendicular to lead screw(33)One side be equipped with ring rack (42), institute State that ring rack (42) is radial along ring block (41) center, outer lens barrel (1) side is equipped with the adjusting perpendicular to outer lens barrel (1) Cylinder (5), the adjustment barrel (5) is interior to be rotatably connected to adjustment axis (43), and the adjustment axis (43) is located at one end in outer lens barrel (1) It is fixedly connected with the bevel gear (44) engaged with ring rack (42).
3. a kind of camera adjusting component according to claim 2, it is characterised in that:The adjustment axis (43) is located at outer lens barrel (1) one end outside is fixedly connected with coarse adjustment handle (45), and the coarse adjustment handle (45) is externally provided with flank (451).
4. a kind of camera adjusting component according to claim 3, it is characterised in that:The adjustment barrel (5) is equipped with and is used for To the micromatic setting (6) that object lens (21) and eyepiece (11) distance are finely adjusted, the micromatic setting (6) includes and adjustment axis (43) Coaxially connected petal gear (61), adjustment barrel (5) inner wall are rotatably connected to driving round block (62), the driving round block (62) it is extended with sliding axle (621) on one side close to petal gear (61), sliding axle (621) the fitting petal gear (61) is outside Wall slip.
5. a kind of camera adjusting component according to claim 4, it is characterised in that:The adjustment barrel (5) is far from outer lens barrel (1) one end is rotatably connected to fine adjustment handle (63), and the fine adjustment handle (63) deviates from sliding axle with driving round block (62) (621) be fixedly connected on one side.
6. a kind of camera adjusting component according to claim 5, it is characterised in that:It is equipped with and supplies in the middle part of the adjustment barrel (5) The annular groove (51) that coarse adjustment handle (45) stretches out, the adjustment barrel (5) are equipped with the connection frame (52) between annular groove (51), institute Connection frame (52) is stated to be located at coarse adjustment handle (45) outside and be bonded coarse adjustment handle (45) sliding.
7. a kind of camera adjusting component according to claim 1, it is characterised in that:Outer lens barrel (1) side wall, which runs through, to be set There are location hole (12), location hole (12) internal thread to be connected with positioning bolt (13), the positioning bolt (13) is equipped with two groups, It is located at outer lens barrel (1) diametric both ends.
8. a kind of camera adjusting component according to claim 7, it is characterised in that:The positioning bolt (13) is located at epi mirror One end in cylinder (1) is fixedly connected with rubber pad (131).
9. a kind of camera adjusting component according to claim 1, it is characterised in that:It is equipped with and carves outside the inner lens cone (2) Spend line (22).
CN201721717045.6U 2017-12-11 2017-12-11 A kind of camera adjusting component Expired - Fee Related CN207752208U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721717045.6U CN207752208U (en) 2017-12-11 2017-12-11 A kind of camera adjusting component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721717045.6U CN207752208U (en) 2017-12-11 2017-12-11 A kind of camera adjusting component

Publications (1)

Publication Number Publication Date
CN207752208U true CN207752208U (en) 2018-08-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721717045.6U Expired - Fee Related CN207752208U (en) 2017-12-11 2017-12-11 A kind of camera adjusting component

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112731613A (en) * 2020-12-30 2021-04-30 福建省腾恒光电有限公司 Optical lens assembly convenient for adjusting distance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112731613A (en) * 2020-12-30 2021-04-30 福建省腾恒光电有限公司 Optical lens assembly convenient for adjusting distance

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180821

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