CN206741069U - A kind of varifocus objective - Google Patents
A kind of varifocus objective Download PDFInfo
- Publication number
- CN206741069U CN206741069U CN201720537024.XU CN201720537024U CN206741069U CN 206741069 U CN206741069 U CN 206741069U CN 201720537024 U CN201720537024 U CN 201720537024U CN 206741069 U CN206741069 U CN 206741069U
- Authority
- CN
- China
- Prior art keywords
- picture frame
- balsaming lens
- handwheel
- varifocus objective
- lens
- 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
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- Microscoopes, Condenser (AREA)
Abstract
The utility model discloses a kind of varifocus objective, the varifocus objective is in same optical axis with surgical operation microscope, the varifocus objective includes the first balsaming lens and the second balsaming lens in same optical axis, first balsaming lens is located in adapter ring, second balsaming lens is located in picture frame and towards object plane, the varifocus objective is connected on the shank of surgical operation microscope by outer picture frame, second balsaming lens and picture frame can move along optical axis, the adapter ring is located at one end of outer picture frame, the outer picture frame and the other end is provided with lens cover.The utility model is simple in construction, is used suitable for surgical operation microscope.
Description
Technical field
Object lens technical field is the utility model is related to, more specifically, more particularly to a kind of varifocus objective.
Background technology
Varifocus objective is one of part of surgical operation microscope, and its effect is can to change operating distance, and directly affecting makes
The working effect of user.Rational varifocus objective design can allow user using comfortable, can more preferably, more efficiently complete work.
Clinical manipulation is simpler, as shown in Figure 1.
The characteristics of certain and limitation, common surgical operation microscope all be present in surgical operation microscope (similar) object lens on the market
The focal length of object lens is all fixed, so its corresponding operating distance and enlargement ratio are also fixed.When doctor needs to change
When the operating distance or enlargement ratio of surgical operation microscope object lens, then need by changing the object lens of different focal come real
It is existing.Cause the inconvenience in operation technique so that objective focal length is unable to consecutive variations, influences the usage experience of doctor, such as Fig. 2
It is shown.
The optical texture of varifocus objective is made up of the first balsaming lens and the second balsaming lens, and the second balsaming lens is can be with
Mobile, the first balsaming lens is that clamping ring is fixed on outer picture frame.Second balsaming lens is towards object space, by picture frame in mirror
Moved among body, change the focal length of object lens, so as to have the function that to change object lens operating distance and object lens enlargement ratio, such as schemed
Shown in 3.
Utility model content
The purpose of this utility model is to provide the varifocus objective that a kind of simple in construction, surgical operation microscope uses.
In order to achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of varifocus objective, the varifocus objective are in same optical axis with surgical operation microscope, and the varifocus objective includes place
In the first balsaming lens and the second balsaming lens in same optical axis, first balsaming lens is located in adapter ring, and described second
Balsaming lens is located in picture frame and is connected to towards object plane, the varifocus objective by outer picture frame on the shank of surgical operation microscope,
Second balsaming lens and picture frame can move along optical axis, and the adapter ring is located at one end of outer picture frame, the outer picture frame it is another
One end is provided with lens cover；
The varifocus objective also includes the transmission mechanism that the second balsaming lens of driving and picture frame move along optical axis, the biography
Motivation structure is pinion and rack, and the pinion and rack includes the rack being arranged on picture frame, and is meshed with rack
Gear, the gear is also connected by gear shaft with a handwheel；
The varifocus objective also includes combination sliding axle components mechanism, the combination sliding axle components mechanism located at picture frame and
Between outer picture frame.
Further, the handwheel includes handwheel, handwheel cover, and the handwheel is installed on gear shaft, the handwheel
It is covered on handwheel.
Further, the combination sliding axle components mechanism includes sliding axle, the inner side of the picture frame and outer picture frame outside
Side is equipped with semi-circular recesses, and the sliding axle is located between the picture frame and two semi-circular recesses of outer picture frame.
Compared with prior art, the utility model has the advantage of：
1st, the second balsaming lens in the utility model is as mobile group, and the first balsaming lens is as fixed group so that from
Illuminator last block lens it is nearest be the first fixed balsaming lens, it is existing first glued on the market so as to avoid
The defects of veiling glare that lens are carried as the product of mobile group.
2nd, the utility model uses rack-and-pinion to slide shaft assembly as guiding mechanism as transmission mechanism and combination, effectively
Kinematic accuracy of second balsaming lens in motion process is improved, and causes whole object lens relative to other zooms on the market
Object lens product structure is compacter, takes less space so that optical system aperture is increased, and ensure that preferable optics
Performance.
3rd, the utility model uses rack-and-pinion as transmission mechanism, the second balsaming lens straight up and down, different from market
Mobile group of lens of other upper varifocus objective products are to be rotated with mobile relative to optical axis, and the second balsaming lens is in movement
During, do not produce rotation relative to optical axis all the time.It ensure that more preferable optical property.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of varifocus objective in the prior art.
Fig. 2 is the structural representation of surgical operation microscope object lens in the prior art.
Fig. 3 is the structural representation after picture frame is mobile among the mirror body in varifocus objective in the prior art.
Fig. 4 is the front view of varifocus objective described in the utility model.
Fig. 5 is the side view of varifocus objective described in the utility model.
Fig. 6 is the top view of varifocus objective described in the utility model.
Description of reference numerals：1st, the first balsaming lens；2nd, the second balsaming lens；3rd, lens cover；4th, outer picture frame；5th, picture frame；6、
Rack；7th, adapter ring；8th, handwheel is tightened up；9th, trim ring；10th, sliding axle；11st, platen；12nd, gear shaft；13rd, gland；14th, positioning disk；
15th, handwheel；16th, handwheel cover；17th, talk endlessly spring；18-21, screw；22nd, packing ring；23rd, screw.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model
Define.
Refering to shown in Fig. 4-Fig. 6, the utility model provides a kind of varifocus objective, and the varifocus objective is in surgical operation microscope
In same optical axis, the varifocus objective includes the first balsaming lens 1 and the second balsaming lens 2 in same optical axis, described
First balsaming lens 1 is located in adapter ring 7, and second balsaming lens 2 is located in picture frame 5 and towards object plane, the varifocus objective
It is connected to by outer picture frame 4 on the shank of surgical operation microscope, second balsaming lens 2 and picture frame 5 can move along optical axis, institute
State one end that adapter ring 7 is located at outer picture frame 4, the outer picture frame 4 and the other end is provided with lens cover 3.
The varifocus objective also includes the transmission mechanism that the second balsaming lens 2 of driving and picture frame 5 move along optical axis, described
Transmission mechanism is pinion and rack, and the pinion and rack includes being arranged on rack 6 on picture frame 5, and with the phase of rack 6
Meshed gears, the gear are also connected by gear shaft 12 with a handwheel.
The handwheel includes handwheel 15, handwheel cover 16, and the handwheel 15 is installed on gear shaft 12, the handwheel cover
16 on handwheel 15.When the varifocus objective described in doctor's use, the handwheel 15 is rotated, together with the gear so that tooth
The second balsaming lens picture frame that bar 6 is arranged on together with it moves up and down along optical axis.
The varifocus objective also includes combination sliding axle components mechanism, and the combination sliding axle components mechanism is located at picture frame 5
Between outer picture frame 4.
The combination sliding axle components mechanism includes sliding axle 10, and the inner side of the picture frame 5 and the outside of outer picture frame 4 are all provided with
There are semi-circular recesses, the sliding axle 10 is located between the picture frame 5 and two semi-circular recesses of outer picture frame 4.
In varifocus objective zooming procedure, gear, rack and combination sliding axle components mechanism drive the second balsaming lens and its
Picture frame is moved up and down in varifocus objective along optical axis direction, and because the effect of shaft assembly is slided in combination, kinematic accuracy is improved,
And structural member volume is reduced, when the second balsaming lens and its picture frame are moved to peak, the second balsaming lens and its mirror
Frame offsets with adapter ring, when the second balsaming lens and its picture frame are moved to minimum point, the second balsaming lens and its picture frame and mirror
Cover pushes against, and the mechanism serves position-limiting action, ensure that varifocus objective reaches optical theory and calculates required focal length value.
The second balsaming lens in the utility model is as mobile group, and the first balsaming lens is as fixed group so that from photograph
Bright system last block lens it is nearest be the first fixed balsaming lens, so as to avoid on the market existing first it is glued thoroughly
The defects of veiling glare that mirror is carried as the product of mobile group.
The utility model uses rack-and-pinion to slide shaft assembly as guiding mechanism as transmission mechanism and combination, effectively carries
Kinematic accuracy of second balsaming lens in motion process has been risen, and has caused whole object lens relative to other zoom things on the market
Mirror product structure is compacter, takes less space so that optical system aperture is increased, and ensure that preferably optical
Energy.
The utility model uses rack-and-pinion as transmission mechanism, the second balsaming lens straight up and down, different from the market
Mobile group of lens of other varifocus objective products are to be rotated with mobile relative to optical axis, and the second balsaming lens is being moved through
Cheng Zhong, rotation is not produced relative to optical axis all the time.It ensure that more preferable optical property.
Although being described in conjunction with the accompanying embodiment of the present utility model, patent owner can want in appended right
Various deformations or amendments are made within the scope of asking, as long as no more than the protection model described by claim of the present utility model
Enclose, all should be within the scope of protection of the utility model.
Claims (3)
1. a kind of varifocus objective, the varifocus objective is in same optical axis with surgical operation microscope, it is characterised in that：The zoom thing
Mirror includes the first balsaming lens and the second balsaming lens in same optical axis, and first balsaming lens is located in adapter ring,
Second balsaming lens is located in picture frame and is connected to surgical operation microscope by outer picture frame towards object plane, the varifocus objective
On shank, second balsaming lens and picture frame can move along optical axis, and the adapter ring is located at one end of outer picture frame, the epi mirror
Frame and the other end is provided with lens cover；
The varifocus objective also includes the transmission mechanism that the second balsaming lens of driving and picture frame move along optical axis, the driver
Structure is pinion and rack, and the pinion and rack includes the rack being arranged on picture frame, and the tooth being meshed with rack
Wheel, the gear are also connected by gear shaft with a handwheel；
The varifocus objective also includes combination sliding axle components mechanism, and the combination sliding axle components mechanism is located at picture frame and epi mirror
Between frame.
2. varifocus objective according to claim 1, it is characterised in that：The handwheel includes handwheel, handwheel cover, described
Handwheel is installed on gear shaft, and the handwheel cover is on handwheel.
3. varifocus objective according to claim 1, it is characterised in that：The combination sliding axle components mechanism includes sliding
Semi-circular recesses are equipped with the outside of axle, the inner side of the picture frame and outer picture frame, the sliding axle is located at the picture frame and epi mirror
Between two semi-circular recesses of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537024.XU CN206741069U (en) | 2017-05-16 | 2017-05-16 | A kind of varifocus objective |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720537024.XU CN206741069U (en) | 2017-05-16 | 2017-05-16 | A kind of varifocus objective |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206741069U true CN206741069U (en) | 2017-12-12 |
Family
ID=60565700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720537024.XU Expired - Fee Related CN206741069U (en) | 2017-05-16 | 2017-05-16 | A kind of varifocus objective |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206741069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932881A (en) * | 2017-05-16 | 2017-07-07 | 广西奥顺仪器有限公司 | A kind of varifocus objective |
-
2017
- 2017-05-16 CN CN201720537024.XU patent/CN206741069U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932881A (en) * | 2017-05-16 | 2017-07-07 | 广西奥顺仪器有限公司 | A kind of varifocus objective |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20200516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |