CN208861057U - A kind of fibrescope of coaxial-illuminating - Google Patents
A kind of fibrescope of coaxial-illuminating Download PDFInfo
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- CN208861057U CN208861057U CN201821826363.0U CN201821826363U CN208861057U CN 208861057 U CN208861057 U CN 208861057U CN 201821826363 U CN201821826363 U CN 201821826363U CN 208861057 U CN208861057 U CN 208861057U
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- fibrescope
- illuminating
- coaxial
- optical fiber
- image transmission
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Abstract
The utility model provides a kind of fibrescope of coaxial-illuminating, including outer telescop, lighting fiber, screening glass, optical fiber image transmission beam, objective lens, eyepiece group, main mirror, beam splitter.Wherein, the inner diameter of shared propagation ducts of the outer telescop as illuminating bundle and imaging beam, the diameter and outer telescop of objective lens and optical fiber image transmission beam is roughly equal, and objective lens and eyepiece group take accurate die pressing technique to manufacture.Above-mentioned implementation can reduce endoscope size, improve endoscopic imaging resolution ratio.
Description
Technical field
The utility model belongs to endoscopic technique field, and in particular to a kind of fibrescope of coaxial-illuminating.
Background technique
There is very extensive application in medical treatment and field of scientific study, endoscope.Wherein, fibrescope is to realize
The main product that 1mm or less diameter duct interior tissue is imaged has irreplaceable critical role.In forthcoming generations,
The developing direction of fibrescope product can be summarized as two key problems: how 1. improve image quality, observes tissue table
The more details in face；2. how to reduce manufacturing cost, realization is disposable, avoids because disinfection, which is not thorough, causes cross-infection
Risk.
For existing fibrescope product, the structure that illumination channel and imaging beam channel are separated from each other is one
A defect very serious.As shown in Fig. 1, it is existing fibre opic endoscope structure, including outer telescop, is set along epi mirror inside pipe wall
The lighting fiber set, the objective lens of optical fiber image transmission beam and optical fiber image transmission beam front end inside outer telescop, outer telescop rear end
Eyepiece group inside the main mirror and main mirror of setting and positioned at optical fiber image transmission beam rear end；Its front-end optics and structure are put
Big schematic diagram is as shown in Fig. 2, and the defect of this structure is that lighting fiber channel occupies the space in imaging beam channel, causes
Practical light passing diameter has larger difference with the diameter (diameter of outer telescop) for probeing into part, it will causes following problem: if
Resolution ratio is promoted, in increasing while the size of mirror tube, the size of outer telescop is increased with it, and leads to high-resolution endoscope
Smaller hole road can not be probeed into be checked.Therefore, the picture quality of existing fibrescope product and use occasion form sternly
The restricting relation of weight, meanwhile, the lighting fiber mounting process that conductive illumination light beam uses is complicated, and assembly efficiency is lower, mentions indirectly
High cost.
In addition, the objective system of existing fibrescope product is gradient-index lens (Graded Index, GRIN),
Since such lens needs special process to manufacture, cause efficiency lower, higher cost.Eyepiece system is the glass material of spherical surface shape
Matter lens, are usually taken the manufacture of classic grinding and polishing process, the efficiency of batch production with quality can not compared with modern manufacturing technique,
Therefore manufacturing cost is equally higher.
Due to the presence of drawbacks described above, the resolution ratio of existing fibrescope product is caused to be restricted, and due to
Higher cost does not have disposable condition.It goes to understand from another angle, if it is possible to find suitable scheme and overcome
Drawbacks described above, it will huge motive force is generated to the development of fibrescope product.
Summary of the invention
In view of this, can reduce interior peep the purpose of the utility model is to provide a kind of fibrescope of coaxial-illuminating
Mirror size improves endoscopic imaging resolution ratio.
The utility model has the advantages that.
1, the utility model proposes a kind of coaxial-illuminating fibrescope, using outer telescop as illuminating bundle and imaging
Autonomous channel is arranged for it without installing lighting fiber, so as to by front-end optics in the shared propagation ducts of light beam
Diameter increases, roughly equal with the internal diameter of outer telescop.It can be under the premise of keeping outer telescop size constancy, utmostly to mention
High-resolution, so as to observe the more details of tissue surface；It can also subtract under conditions of keeping existing resolution ratio constant
The epi mirror pipe diameter of fibrescope is reduced, is allowed to the front end of substantially identical to existing fibrescope by the diameter of small mirror tube
The diameter of optical element, the subtle duct inside so as to probe into for existing fibrescope are observed lesion, are widened
The application field of instrument.
2, the utility model proposes the fibrescope of coaxial-illuminating a kind of save material without installing lighting fiber
The expense of material, and assembly efficiency is improved, reduce manufacturing cost.
3, the utility model proposes a kind of coaxial-illuminating fibrescope, using accurate die pressing technique make aspheric
The lens group of face face shape has the characteristics that image quality is high, batch production is high-efficient, further drops as objective system and eyepiece system
Low manufacturing cost, makes fibrescope have disposable condition, avoids and cause cross-infection in checking process
Risk.
Detailed description of the invention
Fig. 1 is the schematic diagram of existing fibrescope product.
Fig. 2 is the front-end optics and structure enlargement diagram of existing fibrescope product.
Fig. 3 is a kind of fibrescope schematic diagram of coaxial-illuminating described in the utility model.
Fig. 4 is that a kind of fibrescope front-end optics of coaxial-illuminating described in the utility model and structure amplification are shown
It is intended to.
Wherein, 1- outer telescop, 2- lighting fiber, 3- screening glass, 4- optical fiber image transmission beam, 5- objective lens, 6- eyepiece group, 7- master
Mirror body, 8- beam splitter.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of fibrescope of the coaxial-illuminating of the utility model, as shown in figures 3 and 4, including outer telescop 1, protection
Piece 3, optical fiber image transmission beam 4, main mirror 7, objective lens 5, eyepiece group 6 and beam splitter 8；Beam splitter 8 is located at 4 rear end of optical fiber image transmission beam
In main mirror 7 between eyepiece group；Beam splitter 8 is used to for exterior lighting light source being sent into optical fiber image transmission beam 4, and lighting source passes
Detection target is irradiated to 4 front end of optical fiber image transmission beam, then via objective lens 5；Light is reflected or is scattered back interior by detection target
Sight glass, successively via objective lens 5 and optical fiber image transmission beam 4 after, then by beam splitter 8 be sent into eyepiece group 7, finally realize outgoing, enter
Visual or TV observing system.
The utility model does not use traditional optical fibre illumination, but illumination light is imported optical fiber image transmission beam by beam splitter 8
Directly detection target is illuminated, and again by 4 pairs of detection target imagings of optical fiber image transmission beam, while realizing illumination and imaging, taken
Disappear illumination path, roughly equal with the internal diameter of outer telescop so as to increase the diameter of front-end optics.It can keep
Under the premise of outer telescop size constancy, utmostly to improve resolution ratio, so as to observe the more details of tissue surface；?
The diameter that mirror tube can be reduced under conditions of keeping existing resolution ratio constant, the epi mirror pipe diameter of fibrescope is reduced,
Be allowed to the diameter of the front-end optics of substantially identical to existing fibrescope, so as to for existing fibrescope without
Lesion is observed inside the subtle duct that method probes into, and has widened the application field of instrument.
It should be noted that the objective lens 5 and eyepiece group 6 of the utility model can use aspheric surface microscope group, material
It can be optical glass or optical plastic, be manufactured using accurate die pressing technique, therefore image quality can be improved, reduce cost.
The form of beam splitter 8 can be beam-splitter or Amici prism.
The material of outer telescop 1 is stainless steel or high molecular material, inside installation following element: optical fiber image transmission beam 4, objective lens
5, screening glass 3.
The diameter of optical fiber image transmission beam 4 and the inner diameter of outer telescop 1 are roughly equal.
The material of main mirror 7 is stainless steel or high molecular material, is connected with outer telescop 1, inside installation beam splitter 8.
1 front end of outer telescop is additionally provided with screening glass 3.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection scope.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (8)
1. a kind of fibrescope of coaxial-illuminating, including outer telescop (1), optical fiber image transmission beam (4), main mirror (7), objective lens
(5) and eyepiece group (6), which is characterized in that further include beam splitter (8)；Beam splitter (8) be located at optical fiber image transmission beam (4) rear end with
In main mirror (7) between eyepiece group (6)；The beam splitter (8) is used to for exterior lighting light being sent into optical fiber image transmission beam (4),
And eyepiece group (6) will be sent into from the reflection light of detection intended recipient through optical fiber image transmission beam (4).
2. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that the objective lens (5) and mesh
Microscope group (6) can use aspheric surface microscope group.
3. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that the objective lens (5) and mesh
The material of microscope group (6) is optical glass or optical plastic.
4. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that the beam splitter (8) uses
For beam-splitter or Amici prism.
5. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that the material of outer telescop (1) is
Stainless steel or high molecular material.
6. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that the material of main mirror (7) is
Stainless steel or high molecular material.
7. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that outer telescop (1) front end is also set
It is equipped with screening glass (3).
8. a kind of fibrescope of coaxial-illuminating as described in claim 1, which is characterized in that optical fiber image transmission beam (4) it is straight
Diameter and the internal diameter of outer telescop (1) are roughly equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826363.0U CN208861057U (en) | 2018-11-07 | 2018-11-07 | A kind of fibrescope of coaxial-illuminating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826363.0U CN208861057U (en) | 2018-11-07 | 2018-11-07 | A kind of fibrescope of coaxial-illuminating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208861057U true CN208861057U (en) | 2019-05-14 |
Family
ID=66421991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821826363.0U Active CN208861057U (en) | 2018-11-07 | 2018-11-07 | A kind of fibrescope of coaxial-illuminating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208861057U (en) |
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2018
- 2018-11-07 CN CN201821826363.0U patent/CN208861057U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fiber endoscope with coaxial illumination Effective date of registration: 20200923 Granted publication date: 20190514 Pledgee: Liu Liang Pledgor: WTI (Beijing) Asia-Pacific Photoelectric Instrument Co.,Ltd. Registration number: Y2020990001157 |