CN208833982U - A kind of 75mm focusing machine visual lens - Google Patents
A kind of 75mm focusing machine visual lens Download PDFInfo
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- CN208833982U CN208833982U CN201821635707.XU CN201821635707U CN208833982U CN 208833982 U CN208833982 U CN 208833982U CN 201821635707 U CN201821635707 U CN 201821635707U CN 208833982 U CN208833982 U CN 208833982U
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- microscope base
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- 230000000007 visual effect Effects 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
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Abstract
The utility model discloses a kind of 75mm focusing machine visual lens, belong to vision lens field, and 75mm focusing machine visual lens include front lens group, rear lens group, and front lens group, the combined focal range condition of rear lens group realize focal length in 75mm；It further include preceding microscope base, three springs, three top pillars and diaphragm；The inside of microscope base before front lens group is fixed on, one end face of preceding microscope base is provided with three counterbores, three springs are located in three counterbores, one end of three top pillars is abutted with one end of three springs respectively, one end face of diaphragm is provided with the pit of three with top pillar cooperation, the other end of three top pillars is abutted with three pits respectively, and an end face of diaphragm is abutted with an end face of preceding microscope base.It is connected in the pit of diaphragm side by three top pillars, diaphragm and the concentricity of preceding microscope base can be made to be guaranteed, while when adjusting diaphragm, three top pillars can be with the rotation of snoot.So that camera lens is more stable.
Description
Technical field
The utility model relates to vision lens field more particularly to a kind of 75mm focusing machine visual lens.
Background technique
Machine vision is exactly the system for replacing human eye with machine to measure and judge.Mainly pass through sighting device (i.e. work
Industry camera and optical lens) it target will be ingested is converted into picture signal, and send signal processing system to, signal processing system
By the information such as pixel distribution in image and brightness, color, it is transformed into digital signal；Then image processing software believes these numbers
Number various operations are carried out to extract clarification of objective, and then measurement and judgement are made to target is ingested according to feature.
A kind of 75mm focusing machine visual lens disclosed in Chinese patent literature publication number CN207502802U, the camera lens
Optical system successively includes the first lens G1 to the 8th lens G8 by object space to image space, and the focal length of the optical system is f, it is with the
The focal length f1 of the one lens and focal length f2 of the second lens meets relational expression: 2 < | f1/f | < 3,1.5 < | f2/f | < 2.5；It is with the
Meet relational expression between the focal length f3 of three lens and the focal length f4 of the 4th lens: 4 < | f3/f | < 5.5,2 < | f4/f | < 3.5；It is glued
The focal length of lens B1 is fB1, and the focal length of it and optical system is that f meets following relationship: 1.5 < | fB1/f | < 3.
The first lens G1 to the 6th lens G6 of above-mentioned 75mm focusing machine visual lens needs to move integrally to change coke
Away from；And diaphragm is mounted between preceding microscope base and rear microscope base, the concentricity between preceding microscope base and rear microscope base is unable to get guarantee, from
And it is easy to cause imaging undesirable, while when changing unthreaded hole size, diaphragm is easily rotated together with the rotation of turning handle.
Utility model content
In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose a kind of 75mm
Focusing machine visual lens can make the concentricity between diaphragm and preceding microscope base and rear microscope base be guaranteed, while change
When unthreaded hole size, diaphragm is not susceptible to rotate.
For this purpose, the utility model uses following technical scheme:
A kind of 75mm focusing machine visual lens provided by the utility model, including front lens group, rear lens group, front lens
Group, the combined focal range condition of rear lens group realize focal length in 75mm；Before 75mm focusing machine visual lens further include
Microscope base, three springs, three top pillars and diaphragm；The inside of microscope base before front lens group is fixed on, the end face setting of preceding microscope base
There are three counterbore, three springs are located in three counterbores, and one end of three top pillars is abutted with one end of three springs respectively,
One end face of diaphragm is provided with the pit of three with top pillar cooperation, and the other end of three top pillars is abutted with three pits respectively, light
One end face of door screen is abutted with an end face of preceding microscope base.
The utility model preferably technical solution is that 75mm focusing machine visual lens further include rear microscope base, rear microscope base
One end and one end of preceding microscope base be socketed, the side of one end of preceding microscope base is provided with clamping boss, and one end of rear microscope base is provided with
With the notch of clamping boss cooperation, clamping boss is inserted into notch.
The utility model preferably technical solution is that 75mm focusing machine visual lens further include middle pressure ring, middle pressure ring
An end face abutted with the other end of diaphragm, middle pressure ring is fixed on the inside of rear microscope base, by diaphragm be fixed on preceding microscope base and after
Between microscope base.
The utility model preferably technical solution is that the side at the middle part of rear microscope base is provided with rotation through slot, diaphragm
Adjusting rod is located in rotation through slot.
The utility model preferably technical solution is that notch is set to the middle part of rotation through slot, and notch and rotation are logical
Slot connection.
The utility model preferably technical solution is that clamping boss is upside-down trapezoid structure.
The utility model preferably technical solution is that middle pressure ring is soft rubber material.
The utility model has the following beneficial effects:
A kind of 75mm focusing machine visual lens provided by the utility model, including front lens group, rear lens group, front lens
Group, the combined focal range condition of rear lens group realize focal length in 75mm；Before 75mm focusing machine visual lens further include
Microscope base, three springs, three top pillars and diaphragm；The inside of microscope base before front lens group is fixed on, the end face setting of preceding microscope base
There are three counterbore, three springs are located in three counterbores, and one end of three top pillars is abutted with one end of three springs respectively,
One end face of diaphragm is provided with the pit of three with top pillar cooperation, and the other end of three top pillars is abutted with three pits respectively, light
One end face of door screen is abutted with an end face of preceding microscope base.It is connected in the pit of diaphragm side by three top pillars, light can be made
The late concentricity with preceding microscope base is guaranteed, while when adjusting diaphragm, and three top pillars can be with the rotation of snoot.So that
Camera lens is more stable.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of the microscope base provided in specific embodiment of the present invention；
Fig. 2 is the schematic diagram of the cross-section structure of the microscope base provided in specific embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the top pillar provided in specific embodiment of the present invention；
In figure:
1, preceding microscope base；2, diaphragm；3, middle pressure ring；4, rear microscope base；5, front lens group；6, rear lens group；7, spring；8, it pushes up
Column；11, it is clamped boss；12, counterbore；21, pit；22, adjusting rod；41, notch；42, through slot is rotated.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of 75mm focusing machine visual lens provided in the present embodiment, including front lens
Group 5, rear lens group 6, front lens group 5, the combined focal range condition of rear lens group 6 realize focal length in 75mm；75mm is fixed
Burnt machine visual lens further include preceding 7, three, the spring top pillar 8 of microscope base 1, three and diaphragm 2；Front lens group 5 is fixed on preceding mirror
The inside of seat 1, an end face of preceding microscope base 1 are provided with three counterbores 12, and three springs 7 are located in three counterbores 12, and three
One end of top pillar 8 is abutted with one end of three springs 7 respectively, and spring 7 is mounted in counterbore 12, at the same top pillar 8 be also mounted at it is heavy
In hole 12, and top pillar 8 can slidably reciprocate along the axial direction of counterbore 12.One end face of diaphragm 2 is provided with three and top pillar 8
The pit 21 of cooperation, the other end of three top pillars 8 are abutted with three pits 21 respectively, an end face of diaphragm 2 and the one of preceding microscope base 1
End face abuts.When diaphragm 2 is abutted with top pillar 8, diaphragm 2 can squeeze top pillar 8, so that the compression of spring 7 gives diaphragm 2 one to top pillar 8
A extruding force.Top pillar 8 is connected in pit 21 simultaneously, is coaxially positioned using 3 points, can preferably guarantee diaphragm 2 with before
The concentricity of microscope base 1, simultaneously because top pillar 8 is caught in pit 21, while can also snoot 2 well rotation it is free
Degree, so that being not susceptible to rotate when adjusting diaphragm 2.
As shown in Figure 1,75mm focusing machine visual lens further include rear microscope base 4, one end of rear microscope base 4 and preceding microscope base 1
One end socket, the side of one end of preceding microscope base 1 are provided with clamping boss 11, and one end of rear microscope base 4 is provided with and clamping boss 11
The notch 41 of cooperation, clamping boss 11 are inserted into notch 41.Clamping boss 11 is upside-down trapezoid structure.An end cap of microscope base 4 afterwards
In one end of preceding microscope base 1, by coaxial cooperation, and the notch 41 of the clamping boss 11 and rear microscope base 4 of upside-down trapezoid is utilized simultaneously
Cooperation, can further guarantee concentricity, so that the concentricity of preceding microscope base 1 and rear microscope base 4 is higher, rear microscope base 4 is socketed simultaneously
On diaphragm 2, so that the available guarantee of concentricity between diaphragm 2 and rear microscope base 4, so that the concentricity of three
All preferably.
As shown in Figure 1 and Figure 2,75mm focusing machine visual lens further include middle pressure ring 3, an end face of middle pressure ring 3 and diaphragm
2 other end abuts, and middle pressure ring 3 is fixed on the inside of rear microscope base 4, by diaphragm 2 be fixed on preceding microscope base 1 and rear microscope base 4 it
Between.Middle pressure ring 3 is soft rubber material.The end face that diaphragm 2 can be squeezed to microscope base 1 before being attached to by middle pressure ring 3, due to middle pressure
The material is soft for ring 3, can have Light deformation when squeezing.So as to protect eyeglass and diaphragm 2 well.
Facilitate installation and adjusting for diaphragm 2, the side at the middle part of rear microscope base 4 is provided with rotation through slot 42, diaphragm 2
Adjusting rod 22 is located in rotation through slot 42.Notch 41 is set to the middle part of rotation through slot 42, and notch 41 and rotation through slot 42 connect
It is logical.It can make the adjusting rod 22 of diaphragm 2 easily from being put into rotation through slot 42 from notch 41 by the setting of notch 41,
The setting of rotation through slot 42 can make adjusting rod 22 not to be blocked when adjusting, so that the installation and adjustment of diaphragm 2 are all very square
Just.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (7)
1. a kind of 75mm focusing machine visual lens, including front lens group (5), rear lens group (6), the front lens group (5), after
The combined focal range condition of lens set (6) realizes focal length in 75mm, it is characterised in that:
It further include preceding microscope base (1), three springs (7), three top pillars (8) and diaphragm (2)；The front lens group (5) is fixed on
The inside of the preceding microscope base (1), an end face of the preceding microscope base (1) are provided with three counterbores (12), three springs (7) point
Wei Yu not be in three counterbores (12), the one end of one end of three top pillars (8) respectively with three springs (7) is supported
It connects, an end face of the diaphragm (2) is provided with the pits (21) of three with the top pillar (8) cooperation, three top pillars (8)
The other end is abutted with three pits (21) respectively, and an end face of the diaphragm (2) and an end face of the preceding microscope base (1) are supported
It connects.
2. 75mm focusing machine visual lens according to claim 1, it is characterised in that:
It further include rear microscope base (4), one end of the rear microscope base (4) and one end of the preceding microscope base (1) are socketed, the preceding microscope base
(1) side of one end is provided with clamping boss (11), and one end of the rear microscope base (4) is provided with and the clamping boss (11)
The notch (41) of cooperation, the clamping boss (11) are inserted into the notch (41).
3. 75mm focusing machine visual lens according to claim 2, it is characterised in that:
It further include middle pressure ring (3), an end face of medium pressure ring (3) is abutted with the other end of the diaphragm (2), medium pressure
Ring (3) is fixed on the inside of the rear microscope base (4), and diaphragm (2) is fixed between preceding microscope base (1) and rear microscope base (4).
4. 75mm focusing machine visual lens according to claim 2, it is characterised in that:
The side at the middle part of microscope base (4) is provided with rotation through slot (42) after described, and the adjusting rod (22) of the diaphragm (2) is located at institute
It states in rotation through slot (42).
5. 75mm focusing machine visual lens according to claim 4, it is characterised in that:
The notch (41) is set to the middle part of rotation through slot (42), and the notch (41) and the rotation through slot (42)
Connection.
6. 75mm focusing machine visual lens according to claim 2, it is characterised in that:
The clamping boss (11) is upside-down trapezoid structure.
7. 75mm focusing machine visual lens according to claim 3, it is characterised in that: medium pressure ring (3) is soft
Rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635707.XU CN208833982U (en) | 2018-10-09 | 2018-10-09 | A kind of 75mm focusing machine visual lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821635707.XU CN208833982U (en) | 2018-10-09 | 2018-10-09 | A kind of 75mm focusing machine visual lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208833982U true CN208833982U (en) | 2019-05-07 |
Family
ID=66317271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821635707.XU Active CN208833982U (en) | 2018-10-09 | 2018-10-09 | A kind of 75mm focusing machine visual lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208833982U (en) |
-
2018
- 2018-10-09 CN CN201821635707.XU patent/CN208833982U/en active Active
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