CN207396855U - Endoscope compatible device length extension device optical system - Google Patents
Endoscope compatible device length extension device optical system Download PDFInfo
- Publication number
- CN207396855U CN207396855U CN201720930050.9U CN201720930050U CN207396855U CN 207396855 U CN207396855 U CN 207396855U CN 201720930050 U CN201720930050 U CN 201720930050U CN 207396855 U CN207396855 U CN 207396855U
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- optical system
- light group
- endoscope
- optical
- adapter
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- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Abstract
A kind of endoscope compatible device lengthens optical system, the system is that adapter is lengthened on the basis of original adapter to the distance of endoscope to meet the needs of endoscopy disinfection, optical system after lengthening does not change the optical parameter of original adapter optical system, simply increases its optical tube length.Include window glass (1), negative light group (2), positive light group (3), protective glass (4) composition successively along optical path direction; the focal power of elongated portion optical system is zero, is made of two parts, negative light group (2) focal power isPositive light group (3) focal powerNegative light group and positive combination computation of optical components focal powerIt is approximately zero, i.e., WhenWhen,Endoscope compatible device lengthens system and the total focal length of the system of adapter composition and the focal length approximately equal of original adapter.
Description
Technical field：
The present invention relates to optical camera lens devices, it is the optical lens between endoscope and TV transfer lens, particularly suitable
Endoscope occasion is replaced under aseptic condition.
Background technology：
With the development of digital photographing technique, more and more fields all traditional optical technology and video camera and are shown
The technology of showing combines.Past cannot be monitored in real time, shot with video-corder in real time, transmitted in real time, the situation and correlation of more people's Real Time Observations
Data preserves be possibly realized for a long time.
Endoscopic system includes three parts：Endoscope optical system, adapter system, ccd reception systems, to endoscope
Imaging is by adapter re-imaging to ccd target surfaces, observer can clearly be observed by display imaging
The situation of object plane.
It just needs to turn in endoscope, TV when common endoscopic system clinically using if necessary to replace endoscope
Camera lens and video camera disinfection are connect, so as to bring inconvenience.If video camera and TV transfer lens cover entered in aseptic cover, due to existing
Some TV transfer lens are shorter, it has not been convenient to operate.
The content of the invention：
Present invention is exactly to overcome drawbacks described above, and the emergent pupil of endoscope eyepiece is transferred to and TV transfer lens
Entrance pupil overlap, a kind of transfer lens between endoscope and TV transfer lens are provided.
The scheme of the invention is：
Apparatus of the present invention are that have two spheric glasses (2), (3), the sealing parallel plate glass (1) of two uniform thickness and (4)
Composition.The optical material order of two spherical lenses is K 9, K 9.Two panels parallel flat seal glass uses K9 optics glass
Glass.The shape of two panels spherical lens is successively：Bent moon negative lens, biconvex positive lens.The focal length of first negative lens is with f 'BeforeTable
Show, second positive lens focal length is with f 'AfterwardsIt represents.Said lens meet condition：
Description of the drawings：
Fig. 1 is the optical texture schematic diagram of existing adapter.
Fig. 2 is the optical imaging concept schematic diagram of apparatus of the present invention.
Fig. 3 is the optical texture schematic diagram of apparatus of the present invention.
Fig. 4 is the adapter optical structure chart after lengthening.
Specific embodiment：
Optical system is lengthened to a kind of endoscope compatible device of the present invention with reference to the accompanying drawings and examples to carry out specifically
It is bright.
As shown in figure 4, the endoscope compatible device of the present invention lengthens optical system by window glass (1), light group (2) is born, just
Light group (3), protective glass (4), former adapter optical system (5) composition.Endoscope imaging is by lengthening optical system again
It is imaged onto by adapter on ccd target surfaces.
Apparatus of the present invention are made of the sealing parallel plate glass of two spheric glasses and two uniform thickness.Two spherical surfaces are saturating
The optical material order of mirror is K 9, K 9.Two panels parallel flat seal glass uses K9 optical glass.Two panels spherical lens
Shape is successively：Bent moon negative lens, biconvex positive lens.The focal length of first negative lens is with f 'BeforeIt represents, second positive lens focal length
With f 'AfterwardsIt represents.Said lens meet condition：
Setting the above-mentioned purpose for must being fulfilled for condition is：(1) the total focal length for lengthening system is zero, can so make lengthening
System and adapter system it is total focal length it is constant；(2) because lengthening system uses Galileo structure as shown in Fig. 2, making incident light
Emergent light is consistent with the direction of incident light after lengthening system.
The present apparatus is mainly characterized by：According to the actual needs and easy to operate that medicinal operates, this programme proposes
Using Galileo structure, allow the replacement endoscope of operator conveniently aseptically, the time has been saved to perform an operation.
Table 1 is the example of optical camera lens device of the present invention：
E.F.L(ΦEntrance pupilFocal length)=1210.2mm, (Entry pupil diameters)=4mm, 2 ω (field angle)=10 °, achromatism spectral line
For 0.486~0.656 μm of wavelength, L (object distance)=∞
Table 1：Each eyeglass data
Claims (5)
1. endoscope compatible device length extension device optical system, include window glass (1), negative light group (2), just successively along optical path direction
Light group (3), protective glass (4) composition, which is characterized in that the picture of endoscope is after the optical system of lengthening using adapter
It is imaged onto on CCD target surfaces.
2. endoscope compatible device length extension device optical system according to claim 1, which is characterized in that lengthen optical system
Focal power be zero or very little number, this system combines again with adapter system, and the total focal length of system is constant or has one
A small variation.
3. endoscope compatible device length extension device optical system according to claim 1, it is characterised in that：Negative light group (2) and
The focal power of positive light group (3) combination is the number of zero, or very little.
4. endoscope compatible device length extension device optical system according to claim 1, it is characterised in that：Before directional light enters
Expanding there are one low-angle, using rear group of outgoing directional light, forms a galilean telescope system after group.
5. endoscope compatible device length extension device optical system according to claim 1, it is characterised in that：The window glass
Glass (1) and protective glass (4) are optical plate glass, the negative light group (2) be monolithic negative lens, the positive light group
(3) it is monolithic positive lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930050.9U CN207396855U (en) | 2017-07-28 | 2017-07-28 | Endoscope compatible device length extension device optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720930050.9U CN207396855U (en) | 2017-07-28 | 2017-07-28 | Endoscope compatible device length extension device optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207396855U true CN207396855U (en) | 2018-05-22 |
Family
ID=62417898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720930050.9U Expired - Fee Related CN207396855U (en) | 2017-07-28 | 2017-07-28 | Endoscope compatible device length extension device optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207396855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390358A (en) * | 2017-07-28 | 2017-11-24 | 北京凡星光电医疗设备股份有限公司 | Endoscope compatible device length extension device optical system |
-
2017
- 2017-07-28 CN CN201720930050.9U patent/CN207396855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390358A (en) * | 2017-07-28 | 2017-11-24 | 北京凡星光电医疗设备股份有限公司 | Endoscope compatible device length extension device optical system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 Termination date: 20200728 |