CN209167635U - A kind of lens construction - Google Patents
A kind of lens construction Download PDFInfo
- Publication number
- CN209167635U CN209167635U CN201822154009.4U CN201822154009U CN209167635U CN 209167635 U CN209167635 U CN 209167635U CN 201822154009 U CN201822154009 U CN 201822154009U CN 209167635 U CN209167635 U CN 209167635U
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- China
- Prior art keywords
- frame
- guide pin
- guide
- main cylinder
- lens
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- 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.)
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Abstract
The utility model relates to lens technology field, the lens construction that particularly a kind of optical axis will not move in radial directions.The utility model discloses a kind of lens constructions, including frame, main cylinder and dead axle mechanism, the frame is for accommodating lens set, the frame is axially displaceably arranged in main cylinder, the dead axle mechanism is for being fixed frame in radial direction, so that the optical axis of lens set is kept fixed in radial direction relative to main cylinder.The optical axis of the lens set of the utility model will not be mobile in radial direction, avoids that image quality is caused to change.
Description
Technical field
The utility model belongs to lens technology field, will not move in radial direction more particularly to a kind of optical axis of lens set
Dynamic lens construction.
Background technique
Camera lens is essential component in NI Vision Builder for Automated Inspection, directly affects the superiority and inferiority of image quality.With technology and
Expanding economy, camera lens using more and more extensive, such as be widely used in mobile phone, video conference, safety monitoring, automobile neck
Domain.
It is only realized, that is, is connected by a connection facing when frame in existing camera lens axially moves in main cylinder
Facing is equipped with internal screw thread, and frame lateral surface, which is equipped with external screw thread, can will connect tooth by internal screw thread and externally threaded threaded
The rotation of set is converted into frame and moves axially relative to main cylinder, and internal screw thread and external screw thread be in actual processing, due to being limited to plus
Work precision can have clearance fit radially, and entire frame is caused to be easy to lead because being affected by gravity at different erection directions
The optical axis run-off the straight of lens group in cause frame or in radial directions integral shift.
Summary of the invention
The purpose of this utility model is to provide a kind of lens constructions to solve above-mentioned technical problem.
To achieve the above object, the technical solution adopted in the utility model are as follows: a kind of lens construction, including frame, main cylinder
With dead axle mechanism, the frame is for accommodating lens set, and the frame is axially displaceably arranged in main cylinder, the dead axle machine
Structure is for being fixed frame in radial direction, so that the optical axis of lens set is kept fixed in radial direction relative to main cylinder.
Further, the dead axle mechanism includes that the guide pin group of frame lateral surface is arranged in and main tube inner surface is arranged in
Guide nail slot, along axial, the guide pin of the guide pin group is removably set in guide nail slot for the length direction of the guide nail slot, and with lead
Slot interference fit is followed closely, the quantity of the guide pin group is at least three, the circumferentially distributed lateral surface that frame is arranged in, the guide pin
The quantity of slot is corresponding with the quantity of guide pin group.
Further, the quantity of the guide pin group is three, is uniformly arranged in the circumferential direction the lateral surface in frame.
Further, the guide pin quantity of the guide pin group is at least 2, the axially spaced outside that frame is arranged in
Face.
Further, the guide pin includes guide pin ontology and nail set, and the nail is set on guide pin ontology, the nail
Set is removably set in guide nail slot, and is interference fitted in circumferential direction and guide nail slot.
Further, the guide pin is made of plastic material.
Further, the guide nail slot is through to the lateral surface of main cylinder.
It further, further include connection facing, the connection facing rotation is set on frame, by being rotatablely connected tooth
Set, and then frame is driven to axially move relative to main cylinder.
Further, the connection facing is equipped with internal screw thread, and the lateral surface of the frame is equipped with the external screw thread to match.
Further, ring is adjusted before further including, ring is adjusted before described and is rotatably arranged on main cylinder, by adjusting before rotating
Ring can drive connection facing rotation.
The advantageous effects of the utility model:
The utility model is fixed frame in radial direction, by being equipped with dead axle mechanism so that the optical axis of lens set
Be kept fixed in radial direction relative to main cylinder, at different erection directions will not run-off the straight or displacement, avoid causing image quality
Change, and has the advantages of simple structure and easy realization.
Detailed description of the invention
Fig. 1 is the longitudinal sectional view of the utility model specific embodiment；
Fig. 2 is the transverse sectional view of the utility model specific embodiment；
Fig. 3 is the part-structure figure one of the utility model specific embodiment；
Fig. 4 is the part-structure figure two of the utility model specific embodiment；
Fig. 5 is the structure chart of the main cylinder of the utility model specific embodiment
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Figs. 1-5, a kind of lens construction, including frame 2, main cylinder 1 and dead axle mechanism, the frame 2 is for accommodating
Lens set, in this specific embodiment, frame 2 is cylinder-like structure, and the quantity of the lens set in frame 2 can be according to the actual situation
It is set, is specifically referred to the prior art, this is that those skilled in the art can realize easily, is no longer described in detail.
The frame 2 is axially displaceably arranged in main cylinder 1, and the frame 2 cannot be rotated relative to main cylinder 1, described
Dead axle mechanism is for being fixed frame 2 in radial direction, so that the optical axis of the lens set in frame 2 is opposite in radial direction
It is kept fixed in main cylinder 1, is overlapped the optical axis of the lens set in frame 2 with the holding of the central axis of main cylinder 1.
In this specific embodiment, the dead axle mechanism includes that the guide pin group of 2 lateral surface of frame is arranged in and is arranged in main cylinder 1
The guide nail slot 11 of inner surface, the guide nail slot 11 are string configuration, and length direction is along axial, the guide pin 21 of the guide pin group
It is arranged in can axially move in guide nail slot 11, and is interference fitted with guide nail slot 11, specially guide pin 21 and guide nail slot 11 exists
It is interference fitted in circumferential direction, the quantity of the guide pin group is at least three, and the circumferentially distributed lateral surface that frame 2 is arranged in is described
The quantity of guide nail slot 11 is corresponding with the quantity of guide pin group.By at least three guide pin groups of setting and guide nail slot 11, in radial side
It is fixed to frame 2, so that the optical axis of lens set is kept fixed in radial direction relative to main cylinder 1, in different erection sides
To when because by gravity (in the case where especially having vibration) run-off the straight or displacement will not avoid that image quality is caused to change.
In this specific embodiment, the quantity of the guide pin group is preferably three, is uniformly arranged in the circumferential direction in the outside of frame 2
Face, i.e., 120 degree adjacent of guide pin group interval.Certainly, in other embodiments, the quantity of guide pin group is also possible to 4 or more,
This is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, 21 quantity of guide pin of the guide pin group is preferably 2, axially spaced to be arranged in frame 2
Lateral surface, further increase stability.Certainly, in other embodiments, 21 quantity of guide pin of guide pin group be also possible to 1 or
3 or more, this is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, the guide pin 21 includes guide pin ontology 211 and nail set 212, and the guide pin ontology 211 passes through
It is spirally connected and is fixed on the lateral surface of frame 2, convenient for assembling, correspondingly, the lateral surface of frame 2 is equipped with screw hole, one end of guide pin ontology
Equipped with external screw thread, the nail set 212 is set on the other end of guide pin ontology 211, and the nail set 212 can move along its length
It is arranged in guide nail slot 11, and is interference fitted in circumferential direction and guide nail slot 11, is i.e. the outer diameter of nail set 212 is slightly larger than guide nail slot 11
Width.
In this specific embodiment, the guide pin 21 is preferably made of plastic material, as POM plastic is made, but is not limited to
This.
In this specific embodiment, the guide nail slot 11 is through to the lateral surface of main cylinder 1, is easily installed guide pin 21.
Certainly, in other embodiments, dead axle mechanism can also use other structures, as long as can be in radial direction to frame
2 are fixed, so that the optical axis of the lens set in frame 2 is kept fixed in radial direction relative to main cylinder 1, this is ability
What field technique personnel can realize easily, no longer describe in detail.
It further include connection facing 3 in this specific embodiment, the rotation of connection facing 3 is set on frame 2, by turning
Dynamic connection facing 3, and then frame 2 is driven to axially move relative to main cylinder 1.
Specifically, the connection facing 3 is equipped with internal screw thread, the lateral surface of the frame 2 is equipped with the external screw thread 22 to match,
By internal screw thread and 22 threaded of external screw thread, the rotation for connecting facing 3 is changed into into frame 2 and is moved relative to the axial direction of main cylinder 1
Dynamic, more specific structure can refer to the prior art, this is that those skilled in the art can realize easily, is no longer described in detail.
In this specific embodiment, ring 4 is adjusted before further including, ring 4 is adjusted before described and is rotatably arranged on main cylinder 1, by turning
Ring 4 is adjusted before dynamic can drive connection facing 3 to rotate, and more specific structure can refer to the prior art, this is those skilled in the art
What member can realize easily, no longer describe in detail.
The utility model is fixed frame 2 in radial direction, by being equipped with dead axle mechanism so that the optical axis of lens set
Be kept fixed in radial direction relative to main cylinder 1, at different erection directions will not due to the effect by gravity run-off the straight or
Displacement, avoids that image quality is caused to change, and have the advantages of simple structure and easy realization.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (10)
1. a kind of lens construction, it is characterised in that: including frame, main cylinder and dead axle mechanism, the frame is used to accommodate lens set,
The frame is axially displaceably arranged in main cylinder, and the dead axle mechanism makes for frame to be fixed in radial direction
The optical axis for obtaining lens set is kept fixed in radial direction relative to main cylinder.
2. lens construction according to claim 1, it is characterised in that: the dead axle mechanism includes being arranged in frame lateral surface
Guide pin group and the guide nail slot of main tube inner surface is set, along axial, the guide pin group is led for the length direction of the guide nail slot
Nail is removably set in guide nail slot, and is interference fitted with guide nail slot, and the quantity of the guide pin group is at least three, is circumferentially divided
The lateral surface of frame is arranged in cloth, and the quantity of the guide nail slot is corresponding with the quantity of guide pin group.
3. lens construction according to claim 2, it is characterised in that: the quantity of the guide pin group is three, circumferentially
The even lateral surface that frame is set.
4. lens construction according to claim 3, it is characterised in that: the guide pin quantity of the guide pin group is at least 2, edge
It is arranged at axially spaced intervals in the lateral surface of frame.
5. lens construction according to claim 4, it is characterised in that: the guide pin includes that guide pin ontology and nail cover, described
Nail is set on guide pin ontology, and the nail set is removably set in guide nail slot, and is matched in circumferential direction and guide nail slot interference
It closes.
6. lens construction according to claim 5, it is characterised in that: the guide pin is made of plastic material.
7. lens construction according to claim 2, it is characterised in that: the guide nail slot is through to the lateral surface of main cylinder.
8. lens construction according to claim 2, it is characterised in that: it further include connection facing, the connection facing rotation
It is set on frame, by being rotatablely connected facing, and then frame is driven to axially move relative to main cylinder.
9. lens construction according to claim 8, it is characterised in that: the connection facing is equipped with internal screw thread, the frame
Lateral surface be equipped with the external screw thread that matches.
10. lens construction according to claim 9, it is characterised in that: adjust ring before further including, ring rotation is adjusted before described
It is arranged on main cylinder, connection facing rotation can be driven by adjusting ring before rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154009.4U CN209167635U (en) | 2018-12-21 | 2018-12-21 | A kind of lens construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154009.4U CN209167635U (en) | 2018-12-21 | 2018-12-21 | A kind of lens construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209167635U true CN209167635U (en) | 2019-07-26 |
Family
ID=67344482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822154009.4U Active CN209167635U (en) | 2018-12-21 | 2018-12-21 | A kind of lens construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209167635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375333A (en) * | 2018-12-21 | 2019-02-22 | 厦门力鼎光电股份有限公司 | A kind of lens construction |
-
2018
- 2018-12-21 CN CN201822154009.4U patent/CN209167635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375333A (en) * | 2018-12-21 | 2019-02-22 | 厦门力鼎光电股份有限公司 | A kind of lens construction |
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