CN101281341A - Lens apparatus capable of securing accuracy - Google Patents
Lens apparatus capable of securing accuracy Download PDFInfo
- Publication number
- CN101281341A CN101281341A CNA2007100968385A CN200710096838A CN101281341A CN 101281341 A CN101281341 A CN 101281341A CN A2007100968385 A CNA2007100968385 A CN A2007100968385A CN 200710096838 A CN200710096838 A CN 200710096838A CN 101281341 A CN101281341 A CN 101281341A
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- lens assembly
- base unit
- barrier part
- face
- axis
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Abstract
The invention relates to a lens device capable of ensuring precision, comprising a base unit, a revolving drum piece rotationally arranged on outside of a straight drum piece of the base unit, a pressure plate enabling the revolving drum piece to generate an axial positioning corresponding to the base unit and a first lens group unit movably mounted in the base unit. Therefore, the revolving drum piece can be pressed axially to be positioned on a substrate of the base unit by arrangement of the pressure plate and does not generate axial floating, which improves precision of a stopping position of the first lens group.
Description
Technical field
The present invention relates to a kind of optical equipment, particularly relate to a kind of lens assembly of guaranteeing precision.
Background technology
As shown in Figure 1, existing a kind of lens assembly, comprise the barrier part 2, that directly advances that a pedestal 1, is installed on this pedestal 1 and be set in this revolution barrier part 3 that directly enters barrier part 2 outsides rotationally, be installed in one first mirror group unit 4, one second mirror group unit 5, one the 3rd mirror group unit 6 that this directly enters barrier part 2 inside, and a lining is located at this and directly advances on-slip part 7 between barrier part 2 and this revolution barrier part 3.
This directly advances barrier part 2 is to utilize 201 lockings of a plurality of screws on this pedestal 1, and have one around an axis L and can define an endoporus 202 inner peripheral surface 203, one with the outer peripheral face 204 of these inner peripheral surface 203 opposing settings, a plurality of elongated slot 205 that runs through this inside and outside side face 203,204 and extend along this axis L and one and this pedestal 1 opposite setting and the retaining edge 206 that radially protrudes out outwardly by this outer peripheral face 204.This revolution barrier part 3 has the stagger setting and also corresponding to second cam rail 303 of these elongated slots 205 of an inner ring surface 301 with respect to this outer peripheral face 204, a plurality of first cam rail (cam slot) 302 that extends corresponding to these elongated slots 205 and around this axis L and a plurality of and these first cam rails 302.This first mirror group unit 4 can produce displacement along this axis L with respect to the 3rd mirror group unit 6 in this endoporus 202, and first eyeglass 402 that has one first lens barrel 401 and be installed in these first lens barrel, 401 inside, this first lens barrel 401 has a plurality of guide pillars 403 that pass these elongated slots 205 and be subjected to these first cam rail, 302 guidings.This second mirror group unit 5 also can produce displacement along this axis L with respect to the 3rd mirror group unit 6 in this endoporus 202, and second eyeglass 502 that has one second lens barrel 501 and be installed in these second lens barrel, 501 inside, this second lens barrel 501 has a plurality of guide pillars 503 that pass these elongated slots 205 and be subjected to these second cam rail, 303 guidings.This on-slip part 7 is to be made of mao paper of planting that is loop shaped, can provide to make this revolution barrier part 3 directly advance the function that barrier part 2 rotates generation friction location, back with respect to this.
Though, when this lens assembly utilizes this revolution barrier part 3 to rotate, produce displacement can drive this first and second mirror group unit 4,5 with respect to the 3rd mirror group unit 6, and reach the zoom purpose.But, this lens assembly is to utilize screw 201 to make this directly advance barrier part 2 lockings on this pedestal 1, and utilize cooperating of this retaining edge 206 and this pedestal 1, impel this revolution barrier part 3 to reach the purpose of axial limiting, but in order to make this revolution barrier part 3 directly to advance barrier part 2 smooth and easy rotations with respect to this, between this retaining edge 206 and this revolution barrier part 3 opposing end surfaces, just must reserve a gap 8, and also because the effect in this gap 8, it is unsteady to make that this revolution barrier part 3 may produce when rotating vertically, thereby cause first, two mirror group units 4,5 also have unsteady phenomenon, then make and win, two eyeglasses 402,502 precision that stop are relatively poor, and when driving this revolution barrier part 3 and rotate, the also phenomenon that can cause image to beat.
In addition, above-mentioned lens assembly is in order to solve the problem that image is beated, it is the setting that utilizes this on-slip part 7, directly advance friction force between the barrier part 2 to increase this revolution barrier part 3 and this, but its shortcoming is to plant that hair friction strength deviation is too big, assembling speed is slow, and probably have and plant the phenomenon generation that hair comes off, quality is unstable.
Summary of the invention
The technical problem to be solved in the present invention is that, quality unsettled defective relatively poor at camera lens precision of the prior art provides a kind of lens assembly that makes the axial generation location between the mating component and do not influence the precision guaranteed that relatively rotates smoothness.
The technical solution adopted for the present invention to solve the technical problems is, a kind of lens assembly of guaranteeing precision is provided, and it is characterized in that: described lens assembly comprises:
Base unit, have substrate and be connected with described substrate directly advance barrier part, described substrate has a locating surface, it is described that directly to advance barrier part be to be protruded out outwardly along axis by described locating surface, and have around described axis and can define endoporus inner peripheral surface, with outer peripheral face and a plurality of elongated slot that runs through described inside and outside side face and extend of the opposing setting of described inner peripheral surface along described axis;
The revolution barrier part, be and be set in the described barrier part outside of directly advancing rotationally, and have to end first end face at described locating surface, along second end face of the opposite setting of described axis with described first end face, be engaged between described first and second end face and with respect to the inner ring surface of described outer peripheral face and with the outer ring surface of the opposing setting of described inner ring surface, described inner ring surface has a plurality of corresponding to described elongated slot and the cam rail that extends around described axis, and described outer ring surface has large-diameter portion, minor diameter part and is connected shoulder between the portion of described large and small footpath;
Pressing plate has the section of compressing that at least one is installed in the anchor portion on the described base unit and is connected in described anchor portion, and the described section of compressing produces elastic deformation with respect to described anchor portion and supports and end on the shoulder of described revolution barrier part; And
The first mirror group unit, be in described endoporus, to produce displacement with respect to base unit along described axis, and first eyeglass that has lens barrel and be installed in described lens barrel inside, described lens barrel has a plurality of guide pillars that pass described elongated slot and be subjected to described cam rail guiding.
In the lens assembly of guaranteeing precision of the present invention, described base unit has more two locating convex blocks that are convexly equipped with relatively on described locating surface, and described pressing plate has two anchor portion and the sections of compressing between described anchor portion of fixing described locating convex block respectively.
In the lens assembly of guaranteeing precision of the present invention, described pressing plate has more with respect to the press face of described shoulder and a plurality of position, stop section of being protruded by described press face, and position, described stop section is to be wire to be pressed on the described shoulder.
In the lens assembly of guaranteeing precision of the present invention, described pressing plate is made of the plate-sheet-type spring.
In the lens assembly of guaranteeing precision of the present invention, the locating convex block of described base unit respectively has the reference column that upwards is convexly equipped with by end face, and described pressing plate has more two trepannings of being located at described anchor portion and wearing the location for described reference column.
In the lens assembly of guaranteeing precision of the present invention, described base unit has more opposite setting with described substrate and embedding knot at the described circlets spare that directly advances on the barrier part.
In the lens assembly of guaranteeing precision of the present invention, described lens assembly more includes the second mirror group unit, the described second mirror group unit can produce displacement along described axis with respect to described base unit in described endoporus, and have lens barrel and be installed in described lens barrel inner and corresponding to second eyeglass of described first eyeglass, described lens barrel has a plurality of guide pillars that pass described elongated slot and be subjected to described cam rail guiding.
In the lens assembly of guaranteeing precision of the present invention, described lens assembly more comprises the 3rd mirror group unit, and described the 3rd mirror group unit is installed in the endoporus of described base unit, and has prismatic glasses.
In the lens assembly of guaranteeing precision of the present invention, the outer ring surface of described revolution barrier part has more the gear part of being located on the described large-diameter portion, described lens assembly more comprises can drive the driver element that described revolution barrier part rotates, and described driver element has motor and a plurality of transmission gear that described motor power can be passed to described gear part.
Implement the lens assembly of guaranteeing precision of the present invention, has following beneficial effect: utilize this pressing plate elasticity to be pressed on the shoulder of this revolution barrier part, this revolution barrier part is supported vertically only to be positioned on the substrate of this base unit, and it is unsteady that this revolution barrier part can not produced vertically, promoting the precision of this first mirror group unit stop position, and the askiatic problem of beating.
Description of drawings
The present invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the assembled sectional view of existing a kind of lens assembly;
Fig. 2 is a stereo appearance figure, illustrates that the present invention can guarantee a preferred embodiment of the lens assembly of precision;
Fig. 3 is the vertical view of the above-mentioned preferred embodiment of the present invention;
Fig. 4 is the cut-open view along A-A among Fig. 3;
Fig. 5 is the cut-open view along B-B among Fig. 3;
Fig. 6 is a side view of the above-mentioned preferred embodiment of the present invention, illustrates that the revolution barrier part is driven by driver element;
Fig. 7 is another side view of the above-mentioned preferred embodiment of the present invention, illustrates that pressing plate makes this revolution barrier part produce axial location; And
Fig. 8 is the decomposing schematic representation of the above-mentioned preferred embodiment of the present invention, illustrates that this pressing plate can utilize two screw lockings on base unit.
Embodiment
About the present invention can guarantee lens assembly aforementioned and other technology contents, characteristics and the effect of precision, in the detailed description of a preferred embodiment of following conjunction with figs., can clearly understand.
As Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the present invention can guarantee the lens assembly preferred embodiment of precision, comprise base unit 10, rotationally be set in revolution barrier part 20 on this base unit 10, can drive driver element 30 that this revolution barrier part 20 rotates, make this revolution barrier part 20 with respect to the pressing plate 40 of these base unit 10 axial location, be installed in the first mirror group unit 50, the second mirror group unit 60, the 3rd mirror group unit 70 of these base unit 10 inside, and be installed in the spring 80 between this first and second mirror group unit 50,60.
This base unit 10 has substrate 11, directly advances barrier part 12 and be provided with and embedding tie this directly advance circlets spare 13 barrier part 12 on opposite with this substrate 11 with this substrate 11 links into an integrated entity.This substrate 11 has locating surface 111, two and is convexly equipped with relatively on this locating surface 111 and be positioned at the locating convex block 112 and the screw 113 of two screw locks on these locating convex blocks 112 of these locating surface 111 1 lateral margins, and these locating convex blocks 112 respectively have the reference column 114 that upwards is convexly equipped with and is positioned at described screw 113 1 sides by end face.This directly advances barrier part 12 is to be protruded out outwardly and be hollow cylindrical along axis L by this locating surface 111, and has around this axis L and can define the inner peripheral surface 122 of endoporus 121, the outer peripheral face 123 with these inner peripheral surface 122 opposing settings, a plurality of first elongated slot 124 (as shown in Figure 5) and a plurality of second elongated slot 125 (as shown in Figure 4) that runs through this inside and outside side face 122,123 and stagger and be provided with these first elongated slots 124 that runs through this inside and outside side face 122,123 and extend along this axis L.This circlets spare 13 has stop section 131 and a plurality of clamp 132 that is extended vertically by this stop section 131 that radially extends, but these clamp 132 inlay cards are positioned at the top that this directly advances barrier part 12, to use as appearance modification.
This revolution barrier part 20 is to make hollow cylindrical and be set in this directly to enter barrier part 12 outsides, and have to end first end face 21 at this locating surface 111, along second end face 22 of this axis L and these first end face, 21 opposite settings, be engaged between this first and second end face 21,22 and reach and the outer ring surface 24 of these inner ring surface 23 opposing settings with respect to the inner ring surface 23 of this outer peripheral face 123.This inner ring surface 23 has a plurality of corresponding to these first elongated slots 124 and around 231 (as shown in Figure 5) of first cam rail (cam slot) that this axis L extends and a plurality of corresponding to these second elongated slots 125 and second cam rail 232 (as shown in Figure 4) that staggers and be provided with these first cam rails 231.This outer ring surface 24 have corresponding described locating convex block 112 large-diameter portion 241, along this axis L be arranged on these large-diameter portion 241 1 sides minor diameter part 242, be connected in the shoulder 243 between this large and small footpath portion 241,242 and around this axis L and ring and be located at gear part 244 on this large-diameter portion 241.
This driver element 30 is arranged on this substrate 11, and is positioned at this revolution barrier part 20 1 sides, and have motor 31 and a plurality of can be with the transmission gear 32 (see Fig. 3 and Fig. 6) of these motor 31 transmission of power to this gear part 244.
This pressing plate 40 is to constitute with the plate-sheet-type spring, and have two anchor portion 41 that are opposite setting, the section of compressing 42 between described two anchor portion 41, with respect to the press face 43 of this shoulder 243 and a plurality of by this press face 43 towards shoulder 243 protrusions and be circular-arc position, stop section 44.These anchor portion 41 respectively have two trepanning 411 (see figure 8)s that can be nested on these reference columns 114, and these trepannings 411 are set on these reference columns 114 to produce the location, can produce suppression to described two anchor portion 41 when utilizing these screws 113 to be locked on this locating convex block 112, make this section of compressing 42 to produce elastic deformations, and make these positions, stop section 44 be wire to be pressed on (see figure 7) on this shoulder 243 with respect to described anchor portion 41.
This first mirror group unit 50 is to produce displacement along this axis L with respect to this base unit 10 in this endoporus 121, and having first lens barrel 51 that is hollow cylindrical and first eyeglass 52 that is installed in these first lens barrel, 51 inside, this first lens barrel 51 has a plurality of guide pillar 511 (see figure 5)s of passing these first elongated slots 124 and being subjected to these first cam rail, 231 guidings.
This second mirror group unit 60 is to be positioned at this first mirror group unit, 50 inboards, and also can in this endoporus 121, produce displacement with respect to this base unit 10 along this axis L, and have second lens barrel 61 of rounded shell block shape and be installed in this second lens barrel 61 inner and corresponding to second eyeglass 62 of this first eyeglass 52, this second lens barrel 61 has a plurality of guide pillar 611 (see figure 4)s of passing these second elongated slots 125 and being subjected to 232 guidings of described second cam rail.
The 3rd mirror group unit 70 is mounted in the endoporus 121 of this base unit 10, and has and be installed in the bearing seat 71 on this substrate 11 and be installed in this bearing seat 71 and corresponding to the prismatic glasses 72 of this second, one eyeglass 62,52.
The spring 80 of present embodiment is to adopt compression spring, and being opposite two ends supports respectively only on this first and second lens barrel 51,61, and its elastic force can make these guide pillars 511,611 can abut against on the trough wall surface that forms described first and second cam rail 231,232, can not produce inclination with the optical axis of guaranteeing this first and second mirror group unit 50,60.
Fig. 2 for another example, Fig. 4 and shown in Figure 5, when whole assembly is finished, first end face 21 of this revolution barrier part 20 supports and ends on the locating surface 111 of this substrate 11, in addition, utilize the section of compressing 42 of this pressing plate 40 to produce elastic deformation again with respect to described anchor portion 41, and make these positions, stop section 44 be pressed on this shoulder 243, impel the large-diameter portion 241 of this revolution barrier part 20 can be spacing between this locating surface 111 and this pressing plate 40, do not float and can not produce along axis L, and when making zoom operation, be subjected to first of these revolution barrier part 20 stoppers, two mirror group units 50,60 position precision that stop are good, also the phenomenon that can not cause image to beat.
And utilize these pressing plate 40 elasticity to support and end on this shoulder 243, also can make this revolution barrier part 20 produce the effect of on-slip, impel these revolution barrier part 20 brake first and second mirror group units 50,60 to produce synchronous start, and make the operational motion of zoom comparatively stable.
In addition, the simple structure of this pressing plate 40, assembling easily and can reduce whole manufacturing cost.And when assembling, be earlier these these trepannings 411 to be set on these these reference columns 114, so that this pressing plate 40 produces positioning action with respect to base unit 10 and revolution barrier part 20, then these screws 113 just can be fixed on 41 compactings of described two anchor portion on this locating convex block 112 exactly.In addition, when this pressing plate 40 of assembling, utilize the locking degree of these screws 113, this section of compressing of scalable 42 is supported the on-slip friction force of ending at this shoulder 243, and it is quite easy to regulate operation.
What deserves to be mentioned is, above-mentioned preferred embodiment belongs to the camera lens of higher-order, has this first and second mirror group unit 50,60 and the 3rd mirror group unit 70, and the present invention also can be applicable to the camera lens of lower-order, and cancel this second and third mirror group unit 60,70, only keep this first mirror group unit 50.And this revolution barrier part 20 is not limited to gear drive, can also substitute by other cam structure, or is changed into manually by the motor drive, all the purpose and the effect of attainable cost invention.
The above only is preferred embodiment of the present invention, can not limit scope of the invention process with this, be that all simple equivalent of being done according to claim of the present invention and description of the invention content change and modify, all should still belong in the scope that patent of the present invention contains.
Claims (9)
1. the lens assembly that can guarantee precision, it is characterized in that: described lens assembly comprises:
Base unit, have substrate and be connected with described substrate directly advance barrier part, described substrate has a locating surface, it is described that directly to advance barrier part be to be protruded out outwardly along axis by described locating surface, and have around described axis and can define endoporus inner peripheral surface, with outer peripheral face and a plurality of elongated slot that runs through described inside and outside side face and extend of the opposing setting of described inner peripheral surface along described axis;
The revolution barrier part, be and be set in the described barrier part outside of directly advancing rotationally, and have to end first end face at described locating surface, along second end face of the opposite setting of described axis with described first end face, be engaged between described first and second end face and with respect to the inner ring surface of described outer peripheral face and with the outer ring surface of the opposing setting of described inner ring surface, described inner ring surface has a plurality of corresponding to described elongated slot and the cam rail that extends around described axis, and described outer ring surface has large-diameter portion, minor diameter part and is connected shoulder between the portion of described large and small footpath;
Pressing plate has the section of compressing that at least one is installed in the anchor portion on the described base unit and is connected in described anchor portion, and the described section of compressing produces elastic deformation with respect to described anchor portion and supports and end on the shoulder of described revolution barrier part; And
The first mirror group unit, be in described endoporus, to produce displacement with respect to base unit along described axis, and first eyeglass that has lens barrel and be installed in described lens barrel inside, described lens barrel has a plurality of guide pillars that pass described elongated slot and be subjected to described cam rail guiding.
2. according to the described lens assembly of guaranteeing precision of claim 1, it is characterized in that: described base unit has more two locating convex blocks that are convexly equipped with relatively on described locating surface, and described pressing plate has two anchor portion and the sections of compressing between described anchor portion of fixing described locating convex block respectively.
3. according to the described lens assembly of guaranteeing precision of claim 2, it is characterized in that: described pressing plate has more with respect to the press face of described shoulder and a plurality of position, stop section of being protruded by described press face, and position, described stop section is to be wire to be pressed on the described shoulder.
4. according to the described lens assembly of guaranteeing precision of claim 3, it is characterized in that: described pressing plate is made of the plate-sheet-type spring.
5. according to the described lens assembly of guaranteeing precision of claim 4, it is characterized in that: the locating convex block of described base unit respectively has the reference column that upwards is convexly equipped with by end face, and described pressing plate has more two trepannings of being located at described anchor portion and wearing the location for described reference column.
6. according to the described lens assembly of guaranteeing precision of claim 1, it is characterized in that: described base unit has more opposite setting with described substrate and embedding is tied at the described circlets spare that directly advances on the barrier part.
7. according to the described lens assembly of guaranteeing precision of claim 1, it is characterized in that: described lens assembly more includes the second mirror group unit, the described second mirror group unit can produce displacement along described axis with respect to described base unit in described endoporus, and have lens barrel and be installed in described lens barrel inner and corresponding to second eyeglass of described first eyeglass, described lens barrel has a plurality of guide pillars that pass described elongated slot and be subjected to described cam rail guiding.
8. according to the described lens assembly of guaranteeing precision of claim 7, it is characterized in that: described lens assembly more comprises the 3rd mirror group unit, and described the 3rd mirror group unit is installed in the endoporus of described base unit, and has prismatic glasses.
9. according to the described lens assembly of guaranteeing precision of claim 1, it is characterized in that: the outer ring surface of described revolution barrier part has more the gear part of being located on the described large-diameter portion, described lens assembly more comprises can drive the driver element that described revolution barrier part rotates, and described driver element has motor and a plurality of transmission gear that described motor power can be passed to described gear part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100968385A CN100561323C (en) | 2007-04-03 | 2007-04-03 | Can guarantee the lens assembly of precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100968385A CN100561323C (en) | 2007-04-03 | 2007-04-03 | Can guarantee the lens assembly of precision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101281341A true CN101281341A (en) | 2008-10-08 |
| CN100561323C CN100561323C (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100968385A Active CN100561323C (en) | 2007-04-03 | 2007-04-03 | Can guarantee the lens assembly of precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100561323C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597251A (en) * | 2011-04-29 | 2014-02-19 | 雷蛇(亚太)私人有限公司 | A cam mechanism |
| CN116275169A (en) * | 2023-03-07 | 2023-06-23 | 苏州立岩机械科技有限公司 | Power turret capable of achieving multi-station switching |
-
2007
- 2007-04-03 CN CNB2007100968385A patent/CN100561323C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103597251A (en) * | 2011-04-29 | 2014-02-19 | 雷蛇(亚太)私人有限公司 | A cam mechanism |
| US9388887B2 (en) | 2011-04-29 | 2016-07-12 | Razer (Asia-Pacific) Pte Ltd. | Cam mechanism |
| CN103597251B (en) * | 2011-04-29 | 2016-12-14 | 雷蛇(亚太)私人有限公司 | Cam mechanism |
| CN116275169A (en) * | 2023-03-07 | 2023-06-23 | 苏州立岩机械科技有限公司 | Power turret capable of achieving multi-station switching |
| CN116275169B (en) * | 2023-03-07 | 2024-01-05 | 苏州立岩机械科技有限公司 | Power turret capable of achieving multi-station switching |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100561323C (en) | 2009-11-18 |
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