CN105105699B - Fiber optic endoscope - Google Patents
Fiber optic endoscope Download PDFInfo
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- CN105105699B CN105105699B CN201510559258.XA CN201510559258A CN105105699B CN 105105699 B CN105105699 B CN 105105699B CN 201510559258 A CN201510559258 A CN 201510559258A CN 105105699 B CN105105699 B CN 105105699B
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Abstract
The invention discloses a fiber optic endoscope, and belongs to the field of medical equipment. The fiber optic endoscope includes a transmissionoptical fiber which has an image acquiring endconnected to an imaging objective lens. An image output end of the transmission optical fiber is connectedly provided with a light source and image transmission apparatus. The light source and image transmission apparatus serve to transmit the light source to the image output end of the transmission fiber optic and transmit the light source to one end of the imaging objective lens through the transmissionoptical fiber. The light source andimage transmission apparatus also serve to output an output image of the image output end. In this way, no extra lighting unit is needed to be arranged at the external circumference of the transmission optical fiber for providing a lighting source, and the entire diameter of the endoscope is shortened, and the range of application of the endoscope and the comfort of a patient are increased. Furthermore,illumination light rays are output directly from the imaging objective lens so that a lighting fieldof view and image acquiring field of view coincide, which increases the quality in image acquisition.
Description
Technical field
A kind of the invention belongs to medical instruments field, more particularly to fibre opic endoscope.
Background technology
Endoscope is widely used in the clinical diagnosises of digestive tract, urinary system, respiratory tract etc. and guiding operation process, and
White light endoscopic mirror therein is imaged by the reflected light of white-light illuminating and then collection tissue, compared with fluorescence endoscope not
Fluorescence contrast agent is needed, therefore with more wide application.
Current white light endoscopic is broadly divided in fujinon electronic video endoscope (i.e. using CCD or CMOS collection images) and optics and peeps
Mirror (i.e. using imaging fibre transmit image), both the above illumination for endoscope be all image acquisition units (CCD/CMOS, into
As optical fiber) around around a circle lighting unit, provide light source by lighting unit and can smoothly gather image.
But, above-mentioned endoscope structure is due to needing to enclose lighting unit around setting one around, therefore increased interior
The diameter of sight glass, is unfavorable for being used in less inside of human body, while larger diameter can also increase the discomfort of patient.Separately
Outward, as illumination is circumferentially positioned at surrounding so that illumination field of view is not fully overlap with image acquisition visual field, therefore can draw
Near field is played without illumination or the problems such as illumination unevenness.
The content of the invention
The present invention provides a kind of fibre opic endoscope, it is intended to solve that existing fiber endoscope diameter is excessive, and illumination field of view
The problem that can not be overlapped with image acquisition visual field.
The present invention is achieved in that a kind of fibre opic endoscope, including：Conduction optical fiber, the conduction Fiber optic image acquisition
End is connected with image-forming objective lens, and the output end of image of the conduction optical fiber is connected with a light source and conducting images device, described
Light source and conducting images device are for light source being transmitted output end of image to the conduction optical fiber and by the conduction optical fiber
Described image-forming objective lens one end is transferred to, the light source and conducting images device are additionally operable to export the output figure of described image outfan
Picture.
Preferably, the light source and conducting images device include the light docked with the output end of image of the conduction optical fiber
Fine interface, corresponding with optical fiber interface light path Bidirectional Conduction maincenter light corresponding with the Bidirectional Conduction maincenter light path
Source and image output interface.Light source is enable to enter in conduction optical fiber, while and will can scheme by the Bidirectional Conduction maincenter
As carrying out being transmitted on image output interface such as eyepiece or photoelectric conversion device, interface input and output are realized.
Preferably, the Bidirectional Conduction maincenter is spectroscope, and the light source is arranged on the spectroscope plane of incidence side, institute
State optical fiber interface to be arranged on the dichroic mirror light direction, light is reflexed to described by the light source by the spectroscope
Entered in the conduction optical fiber by described image outfan at optical fiber interface.Light source is realized and the light for passing to optical fiber using spectroscope
Line is transmitted, while reversely passing back for image will not be stopped, realize the conduction optical fiber of endoscope be used for simultaneously transmit image with
Conductive outer light source so that the image-forming objective lens output illuminating ray by collection terminal can be both illuminated by conduction optical fiber, together
When the optical imagery that again can be reflected by image-forming objective lens collection be transmitted to tail end from optical fiber is conducted, reach image transmitting
Purpose.
Preferably, in the spectroscope opposite side relative with the smooth source inlet, in spectroscopical transmission direction
On be provided with ligh trap for absorbing transmitted ray.Can be by the light absorption of transmission, to avoid transmitted ray reverse using ligh trap
Pass the quality for having influence on image back.
Preferably, a focus lamp is additionally provided between spectroscopical reflecting surface and the optical fiber interface.Using focusing
Mirror converges light source, preferably can import light source in optical fiber, improve light source utilization rate.
Preferably, the spectroscope is cubic type spectroscope.Cubic type spectroscopic structure is simple, and angle is in 45 °,
Very well light can be reflected by right angle, it is relatively easy on structure is realized.
Preferably, the spectroscope is plane spectroscope.
Preferably, the Bidirectional Conduction maincenter is focus lamp, and the focus lamp focused at the optical fiber interface, the light
Source is arranged on around the central optical path region of focus lamp, and the light source is by the focus lamp is by light focusing and is transmitted to described
Entered in the conduction optical fiber by described image outfan at optical fiber interface, the central optical path region is used for transmitting the output
Image.Using focus lamp by the output end of image of the focus incident light around central optical path region to conduction optical fiber, while protecting
Stay central optical path region to return output image, realize two-way non-interfering transmission.
Preferably, ligh trap is additionally provided with the optical fiber interface for absorbing the light being not incident in the optical fiber interface
Line.Can be very good to absorb spuious light using ligh trap, it is to avoid have influence on normal output image.
Preferably, what the light source was paired is symmetricly set on around the central optical path region.The light source being arranged in pairs
Can be very good to provide more uniform focus light source, there is provided preferable illuminating effect.
Preferably, the light source is that an annular light source is looped around around the central optical path.Annular light source can be provided
More preferable focused light source, there is provided more uniform to illuminate.
Due to being provided with a light source and conducting images device, its output end of image for being used for the conduction optical fiber connects the present invention
Connect and be provided with a light source and conducting images device, the light source and conducting images device are for light source is transmitted to the conduction light
Fine output end of image and by the fiber-optic transfer of conducting to described image-forming objective lens one end, the light source and conducting images device
It is additionally operable to export the output image of described image outfan.So, also avoid the need for being further added by illumination in the periphery of conduction optical fiber
Unit reduces the integral diameter of endoscope to provide lighting source, improves the scope of application of endoscope and improves patient's
Comfortableness.Further, since illuminating ray is directly exported from image-forming objective lens so that illumination field of view and image acquisition visual field are all weights
Folded, improve the quality of image acquisition.
Description of the drawings
Fig. 1 is the fibre opic endoscope structural representation that the present invention provides embodiment one；
Fig. 2 is the fibre opic endoscope structural representation that the present invention provides embodiment two；
Fig. 3 is the ligh trap schematic diagram in the present invention described in embodiment one and embodiment two.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Embodiment one
A kind of specific embodiment of fibre opic endoscope of present invention offer is illustrated in figure 1, the fibre opic endoscope includes：Pass
Guiding fiber 15, the image acquisition end of the conduction optical fiber 15 are connected with image-forming objective lens 16, the image output of the conduction optical fiber 15
End is provided with a light source and conducting images device 20, and the light source and conducting images device 20 include a spectroscope 22, and one is arranged
Light source 21, one in 22 plane of incidence side of the spectroscope reflects the optical fiber interface that light direction is correspondingly arranged with the spectroscope 22
26 and image output interface, the output end of image of the conduction optical fiber 15 is connected on the optical fiber interface 26, so so that
It is corresponding that light path is formed between spectroscope 22 and light source 21, optical fiber interface 26 and image output interface.In the present embodiment, described point
Light microscopic 22 is used as a Bidirectional Conduction maincenter, it is possible to achieve the light transmission between light source and the conduction optical fiber 15, while will not hinder
Reversely passing back for gear image, realizes the conduction optical fiber 15 of endoscope while for transmitting image and conductive outer light source, making
Optical fiber 15 must be conducted both can be illuminated export illuminating ray by the image-forming objective lens 16 of collection terminal, while and can by into
As object lens 16 gather the optical imagery of reflection and are transmitted to tail end from conduction optical fiber 15, the purpose of image transmitting is reached, this
Sample, also avoids the need for being further added by lighting unit to provide lighting source in the periphery of conduction optical fiber 15, reduces the whole of endoscope
Body diameter, the scope of application that improve endoscope and the comfortableness for improving patient.Further, since illuminating ray is from image-forming objective lens
16 directly export so that illumination field of view and image acquisition visual field are all to overlap, and improve the quality of image acquisition, meanwhile,
Be conducive to precise control when performing the operation.
As further improvement of this embodiment, the opposite side relative with the smooth source inlet 21 of the spectroscope 22,
Ligh trap 24 is provided with the transmission direction of the spectroscope 22.As shown in figure 3, ligh trap 24 can be graphite, absorption neutrality
The materials such as density filtering piece, light are absorbed into ligh trap rear portion, and the remaining multiple reflections in ligh trap are to finally being inhaled
Receipts are fallen.The present embodiment absorbs light source through the transmitted ray of spectroscope 22 using ligh trap 24, prevents which from being back to spectroscope 22, keeps away
Exempt from which and enter the impact imaging effect of eyepiece 23.
In the present embodiment, described image output interface is that to be arranged on the spectroscope 22 relative with the optical fiber interface 26 saturating
The eyepiece 23 penetrated on direction, certainly, actually to be set directly at optical fiber interface portion also possible but such and unfavorable for eyepiece 23
In being observed, also it is unfavorable for carrying out photoelectric conversion.Eyepiece 23 is arranged on spectroscope 22 the transmit side relative with optical fiber interface 26
Upwards, the image of collection directly can be back to eyepiece 23 by spectroscope 22, be easy to observe or carry out photoelectric conversion.
As further improvement of this embodiment, also set between the reflecting surface of the spectroscope 22 and the optical fiber interface 26
It is equipped with a focus lamp 25.Light source is converged using focus lamp 25, preferably can be imported light source in conduction optical fiber 15, be improved light source
Utilization rate.
In the present embodiment, the spectroscope 22 be cubic type spectroscope, certainly, as cubic type is spectroscopical can
Alternative, it would however also be possible to employ other such as prism, plane spectroscopes etc..Cubic type spectroscopic structure is simple, and angle is in
45 °, very well light can be reflected by right angle, it is relatively easy on structure is realized.In the present embodiment, described point
The reflection of light microscopic 22 is 30 with the splitting ratio of transmission:70, but, the higher shadow that preferably can avoid returning image of transmittance
Ring.
Used as further improvement of this embodiment, the fibre opic endoscope is additionally provided with photoelectric conversion interface (in figure not
Illustrate), the photoelectric conversion interface can be arranged on eyepiece position.The image of collection can be converted into using photoelectric conversion interface
Digital picture is presented on electronic equipment, is convenient for storing and is watched.
Embodiment two
The specific embodiment of another kind of fibre opic endoscope of present invention offer is illustrated in figure 2, the fibre opic endoscope includes：
Conduction optical fiber 15, the image acquisition end of the conduction optical fiber 15 are connected with image-forming objective lens 16, and the image of the conduction optical fiber 15 is defeated
Go out end and be provided with a light source and conducting images device 20, the light source and conducting images device 20 include focus lamp 27, described poly-
Burnt mirror 27 is focused at the optical fiber interface 26, and light source 21 is arranged on around the central optical path region 29 of focus lamp 27, the light
Source 21 is by the focus lamp 27 is by light focusing and is transmitted at the optical fiber interface 26 and enters institute by described image outfan
State in conduction optical fiber 15, the central optical path region 29 is used for transmitting the output image to image output interface.The focusing
Form light path to be correspondingly arranged between mirror 27 and the optical fiber interface 26, light source 21 and image output interface.The present embodiment is utilized
Focus lamp as Bidirectional Conduction maincenter by the focus incident light around central optical path region to conduction optical fiber output end of image,
Remain central optical path region to return output image simultaneously, realize two-way non-interfering transmission.
In the present embodiment, equally ligh trap is also equipped with the optical fiber interface 26 be not incident to the light for absorbing
Light and some spurious rays in fine interface, to avoid the impact to output image.
In the present embodiment, the light source 21 can be the paired week for being symmetricly set on the central optical path region 29
Enclose, there is provided more uniform focused light source, so as to provide preferable illuminating effect.Certainly, the light source 21 can also be annular
Uniform source of light, can thus provide more preferable focused light source, there is provided more uniform illuminating effect.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (4)
1. a kind of fibre opic endoscope, including：Conduction optical fiber, the conduction Fiber optic image acquisition end are connected with image-forming objective lens, and which is special
Levy and be, the output end of image of the conduction optical fiber is connected with a light source and conducting images device, the light source and image
Conduction device is for light source being transmitted output end of image to the conduction optical fiber and by the fiber-optic transfer of conducting to described
Image-forming objective lens one end, the light source and conducting images device are additionally operable to export the output image of described image outfan；
Wherein, the light source and conducting images device include that the optical fiber docked with the output end of image of the conduction optical fiber is connect
Mouthful, corresponding with optical fiber interface light path Bidirectional Conduction maincenter light source corresponding with the Bidirectional Conduction maincenter light path with
And image output interface；
The Bidirectional Conduction maincenter is focus lamp, and the focus lamp focused at the optical fiber interface, and the light source is arranged on poly-
Around the central optical path region of burnt mirror, the light source is by the focus lamp is by light focusing and is transmitted at the optical fiber interface
Entered in the conduction optical fiber by described image outfan, the central optical path region is used for transmitting the output image.
2. fibre opic endoscope as claimed in claim 1, it is characterised in that be additionally provided with ligh trap at the optical fiber interface for inhaling
Receipts are not incident to the light in the optical fiber interface.
3. fibre opic endoscope as claimed in claim 1, it is characterised in that what the light source was paired is symmetricly set on the center
Around optical path area.
4. fibre opic endoscope as claimed in claim 1, it is characterised in that the light source for an annular light source be looped around it is described in
Around heart light path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559258.XA CN105105699B (en) | 2015-09-06 | 2015-09-06 | Fiber optic endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510559258.XA CN105105699B (en) | 2015-09-06 | 2015-09-06 | Fiber optic endoscope |
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| CN105105699A CN105105699A (en) | 2015-12-02 |
| CN105105699B true CN105105699B (en) | 2017-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102016006903A1 (en) * | 2016-06-08 | 2017-12-14 | OLYMPUS Winter & lbe GmbH | Rigid endoscope |
| CN106979481A (en) * | 2017-05-17 | 2017-07-25 | 重庆市光遥光电节能科技有限公司 | A kind of museum's optical fiber lamp |
| CN112345551B (en) * | 2020-11-05 | 2021-07-30 | 菲特（天津）检测技术有限公司 | Method and system for detecting surface defects of inner wall and outer wall of aircraft conduit bell mouth |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1425919A4 (en) * | 2001-08-15 | 2005-08-24 | Reliant Technologies Inc | Method and apparatus for thermal ablation of biological tissue |
| CN101553162A (en) * | 2006-12-06 | 2009-10-07 | 皇家飞利浦电子股份有限公司 | Obtaining optical tissue properties |
| US20090076329A1 (en) * | 2007-09-17 | 2009-03-19 | Wei Su | Disposable Stereoscopic Endoscope System |
| CN101637381A (en) * | 2008-07-29 | 2010-02-03 | 精碟科技股份有限公司 | Endoscope light source module structure with light-emitting diodes |
| CN101485558B (en) * | 2009-02-27 | 2011-03-23 | 浙江工商大学 | Single-optical fiber multiphoton fluorescence scanning endoscope |
| CN201356532Y (en) * | 2009-03-11 | 2009-12-09 | 孙渝超 | Auxiliary visual medical inspection equipment |
| CN103006168A (en) * | 2012-12-29 | 2013-04-03 | 上海乾衡生物科技有限公司 | Rapid cluster optical fiber imaging device |
| CN104880815B (en) * | 2014-02-27 | 2018-09-14 | 北京威斯顿亚太光电仪器有限公司 | A kind of detachable optics hard tube mirror based on the illumination of total light path |
| CN205083432U (en) * | 2015-09-06 | 2016-03-16 | 深圳英美达医疗技术有限公司 | Optical -fiber endoscope |
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Address after: 518000 area 01, 8 / F, building B, haikexing strategic emerging industrial park, No.16 Baoshan Road, intersection of Jinlong Avenue, Liulian community, Pingshan street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: INNERMEDICAL Co.,Ltd. Address before: 518055 Room 201, building 6, Pingshan private enterprise science and Technology Park, Taoyuan Street, Nanshan, Shenzhen City, Guangdong Province Patentee before: INNERMEDICAL Co.,Ltd. |
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