CN208795925U - Zoom binocular lens tube for surgical operation microscope - Google Patents
Zoom binocular lens tube for surgical operation microscope Download PDFInfo
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- CN208795925U CN208795925U CN201821729643.XU CN201821729643U CN208795925U CN 208795925 U CN208795925 U CN 208795925U CN 201821729643 U CN201821729643 U CN 201821729643U CN 208795925 U CN208795925 U CN 208795925U
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Abstract
The utility model relates to a kind of zoom binocular lens tubes for surgical operation microscope, including small object lens, eyepiece, optical mirror slip group between the small object lens, eyepiece in optical path is set, the small object lens include that can cut the focusing lens set for cutting out the optical path or moving on the optical path direction, when the focusing lens set cuts out the optical path or moves on the optical path direction, the focal length variations of the small object lens, and the image planes position of the small object lens remains unchanged.The utility model had not only been able to achieve the adjusting of focal length, but also was able to maintain the constant of image planes position, overcomes the problems, such as that the emergent pupil and entrance pupil between afocal system in the prior art cannot keep accurate matching, improves the flexibility of observation；And it can realize that adjustment is more convenient by simple mechanical structure.
Description
Technical field
The utility model relates to medical instruments fields, are related to a kind of surgical operation microscope, more particularly to one kind for performing the operation
Microscopical zoom binocular lens tube.
Background technique
The enlargement ratio of existing surgical operation microscope is by big objective focal length, zooming system zoom ratio, binocular lens tube focal length, eyepiece
Multiplying power determines.Wherein: big objective focal length is generally selected according to the operating distance of operation；Zooming system is normally above big object lens
Parallel light path in, be built in shank, can not replace, be afocal system, zoom range is fixed, usually 1:6 or so.Eyepiece
Although can be furnished with different multiplying and pluggable replacement, need to stop surgical procedure at this time, and needs to consider the factors such as disinfection, pole
For inconvenience.
In the clinical application of surgical operation microscope, certain special operations need temporary raising enlargement ratio in order to essence
Really operation, but reduce since multiplying power raising will cause observation visual field, the depth of field can also shorten, therefore need after completing this precise manipulation
Original enlargement ratio is reverted to again.
In order to easily change the range of enlargement ratio, the binocular lens tube of different focal length can be used, such as Germany ziess
The collapsible binocular lens tube f170/260 of production, principle can be found in CN201410118016, set below binocular lens tube optical path
It is equipped with without burnt amplification system, changes the enlargement ratio range of surgical operation microscope by rotation Galilean transformation device.This scheme
The identical afocal system of a principle has really been added in the parallel light path above zooming system, since structure limits,
Emergent pupil and entrance pupil between two variable afocal systems cannot keep accurate matching, therefore will cause some light and can not pass through, special
It is not that peripheral field will cause biggish vignetting, influences to observe；And its switching mechanism is more complex, and adjustment is difficult.
The patent US20020149844A1 for for another example applying for artificial LEICA, in left and right, lens barrel can adjust its length field
Domain, to realize the variation of focal length.But the image planes that this scheme is imaged after adjusting can change.
Summary of the invention
The purpose of the utility model is to provide a kind of zoom binocular lens tubes for surgical operation microscope.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of zoom binocular lens tube for surgical operation microscope, including small object lens, eyepiece, be arranged in the small object lens,
Optical mirror slip group between eyepiece in optical path, the small object lens include that can cut to cut out the optical path or in the light
The focusing lens set moved on the direction of road, when the focusing lens set cuts out the optical path or in the optical path side
When moving up, the focal length variations of the small object lens, and the image planes position of the small object lens remains unchanged.
Preferably, the focusing lens set is provided at least one set, and focusing lens set described in every group includes being located at a left side
Right a pair of of focusing eyeglass, the focusing lens set are always positioned in the optical path.
It is further preferred that the focusing lens set has the first observation position, the second observation in the optical path
Position, it is described when position is moved to the second observation position to the focusing lens set from described first
The focal length variations of small object lens, and the image planes position of the small object lens remains unchanged.
It is further preferred that the absolute value of the focal length of the focusing lens set is in 10mm between 100mm.
It is further preferred that the absolute value of the focal length of the focusing lens set is between 25mm-80mm.
It is further preferred that the absolute value of the focal length of the focusing lens set is between 35mm-60mm.
It is further preferred that the focusing lens set is provided at least two groups, focusing lens set described at least two groups
Can simultaneously on the optical path direction continuous moving, when the focusing lens set continuous moving, the binocular
The focal length consecutive variations of cylinder, and the image planes position of the small object lens remains unchanged.
Preferably, the focusing lens set is provided at least two groups, and focusing lens set described in every group includes being located at a left side
Right a pair of of focusing eyeglass, the focusing lens set vertically cut out the optical path.
It is further preferred that focusing lens group settings described at least two groups on same focusing lens hanger and are circumferentially divided
Cloth simultaneously, is symmetrical arranged, the focusing lens hanger can be around optical axis rotation with the group focusing eyeglass.
It is further preferred that focusing lens group settings described at least two groups are on same focusing lens hanger and along linear point
Cloth.
It is further preferred that focusing lens group settings described in every group are on a focusing lens hanger,
Preferably, the focal-distance tuning range of the small object lens is between 100mm-350mm.
It is further preferred that the focal-distance tuning range of the small object lens is between 130mm-310mm.
It is further preferred that the focal-distance tuning range of the small object lens is between 160mm-270mm.
Preferably, the optical mirror slip group, which includes at least, turns to prism, field stop.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
The utility model had not only been able to achieve the adjusting of focal length, but also was able to maintain the constant of image planes position, overcome in the prior art without
The problem of emergent pupil and entrance pupil between burnt system cannot keep accurate matching, improves the flexibility of observation；And it can be by simple
Mechanical structure realize that adjustment is more convenient.
Detailed description of the invention
Attached drawing 1a is the schematic front view of binocular lens tube；
Attached drawing 1b is the schematic side view of binocular lens tube；
Attached drawing 1c is the schematic top plan view of binocular lens tube；
Attached drawing 2a, 2b are the schematic diagram of the present embodiment one；
Attached drawing 3a, 3b are the schematic diagram of the present embodiment two；
Attached drawing 4a, 4b are the schematic diagram of the present embodiment three；
Attached drawing 5a, 5b are the schematic diagram of the present embodiment four；
Attached drawing 6a, 6b are the schematic diagram of the present embodiment five.
Wherein: 1, small object lens；2, eyepiece；3, prism is turned to；4, field stop；5,50,51,52,53,54,55,56,57,
Focusing lens set；60,61,62,63, focusing lens hanger.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
A kind of zoom binocular lens tube for surgical operation microscope as shown in Fig. 1 a, 1b, 1c, including small object lens 1, eyepiece 2, set
Set the optical mirror slip group between small object lens 1, eyepiece 2 in optical path.Wherein optical mirror slip group typically at least include turn to prism 3,
Field stop 4 etc..
Embodiment one:
In the present embodiment: small object lens 1 include at least one set of focusing lens set 5 being arranged in optical path, due to for binocular
Lens barrel, every group of focusing lens set 5 include a pair of of focusing eyeglass positioned at left and right.Lens set 5 of focusing has first to see in optical path
Examine position a, the second observation position b.When focusing lens set 3 position a from first along optical path is moved to the second observation position b
When, two kinds of different focal lengths are presented in the focal length of small object lens 1, but the image planes position of small object lens 1 remains unchanged, to realize small object lens 1
Two grades of zooms, as shown in Fig. 2 a, 2b.The absolute value of the focal length for lens set 5 of wherein focusing in 10mm between 100mm, preferably
Between 25mm-80mm, more preferably between 35mm-60mm, so that the focal-distance tuning range of small object lens 1 is in 100mm-
Between 350mm, preferably between 130mm-310mm, more preferably between 160mm-270mm.Focusing eyeglass can use
Lens as shown in the figure or other optical mirror slips being able to achieve.
Embodiment two:
In the present embodiment: small object lens 1 include be arranged in optical path at least two groups focusing lens set 50,51, due to for
Binocular lens tube, every group of focusing lens set 50,51 include a pair of of focusing eyeglass positioned at left and right, and at least two groups focus lens set can
The continuous moving on optical path direction simultaneously.As shown in Fig. 3 a, 3b, it is focusing lens set 50,51 with two groups of setting, works as focusing lens
In optical path between piece group 50,51 when continuous moving, the focal length consecutive variations of small object lens 1, i.e. real-time change, but small object lens 1
Image planes position remains unchanged, to realize continuous vari-focus.The focal-distance tuning range of small object lens 1 is between 100mm-350mm, preferably
Ground is between 130mm-310mm, more preferably between 160mm-270mm.Eyeglass of focusing can use lens as shown in the figure,
Or other optical mirror slips for being able to achieve.
Embodiment three:
In the present embodiment: small object lens 1 include that at least two groups can cut the focusing lens set for cutting out optical path, due to being double
Eyepiece stalk, every group of focusing lens set include a pair of of focusing eyeglass positioned at left and right.At least two groups focus lens group settings same
It focuses on lens hanger 60 and circumferentially simultaneously, is symmetrical arranged with group focusing eyeglass, focusing lens hanger 60 can be around optical axis rotation.
As shown in Fig. 4 a, 4b, for two groups of focusing lens sets 52,53 are arranged, when rotation focusing lens hanger 60 makes lens set 52 of focusing
Vertical incision optical path, small object lens 1 realize one grade of focal length, so that focusing lens set 52 cut out, focused when rotating focusing lens hanger 60 again
Vertically incision optical path, small object lens 1 realize that the image planes position of another grade of focal length, two grades of focal length differences, but small object lens 1 is protected to lens set 53
It holds constant, naturally it is also possible to which focusing lens set 52,53 is all cut out into optical path.The focal-distance tuning range of small object lens 1 is in 100mm-
Between 350mm, preferably between 130mm-310mm, more preferably between 160mm-270mm.
Example IV:
In the present embodiment: small object lens 1 include that at least two groups can cut the focusing lens set for cutting out optical path, due to being double
Eyepiece stalk, every group of focusing lens set include a pair of of focusing eyeglass positioned at left and right.Every group of focusing lens group settings are focused at one
On lens hanger.As shown in Fig. 5 a, 5b, for two groups of focusing lens sets 54,55 are arranged, focusing lens set 54 is arranged in focusing lens
On horse 61, lens set 55 of focusing setting is on focusing lens hanger 62, when mobile focusing lens hanger 61 makes focusing lens set 54 hang down
Vertical cut enters optical path, and small object lens 1 realize that one grade of focal length, then mobile focusing lens hanger 61 make focusing lens set 54 cut out optical path, mobile
Focusing lens hanger 62 makes to focus, and vertically incision optical path, small object lens 1 realize another grade of focal length to lens set 55, two grades of focal length differences, but
The image planes position of small object lens 1 remains unchanged, naturally it is also possible to which focusing lens set 54,55 is all cut out optical path.The coke of small object lens 1
Away from variation range between 100mm-350mm, preferably between 130mm-310mm, more preferably 160mm-270mm it
Between.
Embodiment five:
In the present embodiment: small object lens 1 include that at least two groups can cut the focusing lens set for cutting out optical path, due to being double
Eyepiece stalk, every group of focusing lens set include a pair of of focusing eyeglass positioned at left and right.At least two groups focus lens group settings same
It focuses on lens hanger 63 and along linear distribution.As shown in Fig. 6 a, 6b, for two groups of focusing lens sets 56,57 are set, work as movement
Focusing lens hanger 63 makes the vertically incision optical path of lens set 56 of focusing, and small object lens 1 realize that one grade of focal length, mobile focusing lens hanger 63 make
Focusing lens set 56 cuts out optical path, vertically incision optical path, small object lens 1 realize another grade of focal length, two grades of focal lengths to focusing lens set 57
Difference, but the image planes position of small object lens 1 remains unchanged, naturally it is also possible to focusing lens set 56,57 is all cut out into optical path.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (11)
1. including small object lens, eyepiece, the small object lens, mesh are arranged in a kind of zoom binocular lens tube for surgical operation microscope
Optical mirror slip group between mirror in optical path, it is characterised in that: the small object lens include can cut cut out the optical path or
The focusing lens set moved on the optical path direction, when the focusing lens set cuts out the optical path or in institute
When being moved on the optical path direction stated, the focal length variations of the small object lens, and the image planes position of the small object lens remains unchanged.
2. the zoom binocular lens tube according to claim 1 for surgical operation microscope, it is characterised in that: the focusing lens
Piece group is provided at least one set, and focusing lens set described in every group includes a pair of of focusing eyeglass positioned at left and right, the focusing
Lens set is always positioned in the optical path.
3. the zoom binocular lens tube according to claim 2 for surgical operation microscope, it is characterised in that: the focusing lens
Piece group has the first observation position, the second observation position in the optical path, when the focusing lens set is from described the
When one observation position is moved to the second observation position, the focal length variations of the small object lens, and the small object lens
Image planes position remains unchanged.
4. the zoom binocular lens tube according to claim 3 for surgical operation microscope, it is characterised in that: the focusing lens
The absolute value of the focal length of piece group is in 10mm between 100mm.
5. the zoom binocular lens tube according to claim 2 for surgical operation microscope, it is characterised in that: the focusing lens
Piece group is provided at least two groups, and focusing lens set described at least two groups can be moved continuously on the optical path direction simultaneously
It is dynamic, when the focusing lens set continuous moving, the focal length consecutive variations of the small object lens, and the picture of the small object lens
Face position remains unchanged.
6. the zoom binocular lens tube according to claim 1 for surgical operation microscope, it is characterised in that: the focusing lens
Piece group is provided at least two groups, and focusing lens set described in every group includes a pair of of focusing eyeglass positioned at left and right, the focusing
Lens set vertically cuts out the optical path.
7. the zoom binocular lens tube according to claim 6 for surgical operation microscope, it is characterised in that: described at least two groups
Focusing lens group settings on same focusing lens hanger and circumferentially simultaneously, be symmetrical arranged with the group focusing eyeglass,
The focusing lens hanger can be around optical axis rotation.
8. the zoom binocular lens tube according to claim 6 for surgical operation microscope, it is characterised in that: described at least two groups
Focusing lens group settings be distributed in same focusing lens hanger ascender line.
9. the zoom binocular lens tube according to claim 6 for surgical operation microscope, it is characterised in that: tune described in every group
Focus lens group is arranged on a focusing lens hanger.
10. the zoom binocular lens tube according to claim 1 for surgical operation microscope, it is characterised in that: the small object
The focal-distance tuning range of mirror is between 100mm-350mm.
11. the zoom binocular lens tube according to claim 1 for surgical operation microscope, it is characterised in that: the optics
Lens set, which includes at least, turns to prism, field stop.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821661883 | 2018-10-12 | ||
| CN2018216618830 | 2018-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208795925U true CN208795925U (en) | 2019-04-26 |
Family
ID=66212225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821729643.XU Active CN208795925U (en) | 2018-10-12 | 2018-10-24 | Zoom binocular lens tube for surgical operation microscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208795925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024020988A1 (en) * | 2022-07-29 | 2024-02-01 | 苏州速迈医学科技股份有限公司 | Adjustable binocular tube and surgical microscope |
-
2018
- 2018-10-24 CN CN201821729643.XU patent/CN208795925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024020988A1 (en) * | 2022-07-29 | 2024-02-01 | 苏州速迈医学科技股份有限公司 | Adjustable binocular tube and surgical microscope |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: No.5, Zhiying street, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Sumai Medical Technology Co.,Ltd. Address before: No.5, Zhiying street, high tech Zone, Suzhou City, Jiangsu Province Patentee before: Suzhou Sumai Medical Equipment Co.,Ltd. |