CN205083432U - Optical -fiber endoscope - Google Patents
Optical -fiber endoscope Download PDFInfo
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- CN205083432U CN205083432U CN201520684360.8U CN201520684360U CN205083432U CN 205083432 U CN205083432 U CN 205083432U CN 201520684360 U CN201520684360 U CN 201520684360U CN 205083432 U CN205083432 U CN 205083432U
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Abstract
The utility model is suitable for a medical instrument field provides an optical -fiber endoscope, include: conduction optic fibre, conduction optic fibre image acquisition end is connected with the formation of image objective, the image output end connection of conduction optic fibre is provided with a light source and image conduction device, light source and image conduction device are used for with the light source transmission extremely the image output of conduction optic fibre holds and passes through the conduction optical fiber transmission arrive formation of image objective one end, light source and image conduction device still are used for output the outgoing picture of image output end. Like this, just need not increase illumination element in the periphery of conduction optic fibre again in order to provide source of illumination yet, reduce the whole diameter of endoscope, improve the application scope of endoscope and the travelling comfort that improves the patient. In addition, because illuminating light is from formation of image objective direct output for all overlap illumination visual field and image acquisition visual field, has improved image acquisition's quality.
Description
Technical field
This utility model belongs to medical instruments field, particularly relates to a kind of fibre opic endoscope.
Background technology
Endoscope is widely used in clinical diagnosis and the guided surgery process of digestive tract, urinary system, respiratory tract etc., and white light endoscopic mirror wherein carries out imaging by the reflected light of white-light illuminating then collection organization, do not need fluorescence contrast agent compared with fluorescence endoscope, therefore there is more wide application.
Current white light endoscopic is mainly divided into fujinon electronic video endoscope (namely utilizing CCD or CMOS to gather image) and endoscope optical (namely utilizing imaging fibre images), above two kinds of illumination for endoscope are all at image acquisition units (CCD/CMOS, imaging fibre) around around a circle lighting unit, provide light source can gather image smoothly by lighting unit.
But above-mentioned endoscope structure, because needs are around around arranging a circle lighting unit, because this increasing the diameter of endoscope, is unfavorable for using at less inside of human body, larger diameter also can increase the discomfort of patient simultaneously.In addition, because illumination is around being arranged on around, makes illumination field of view and image acquisition visual field also not exclusively overlapping, near field therefore can be caused without problems such as illumination or illumination unevenness.
Utility model content
This utility model provides a kind of fibre opic endoscope, is intended to solve the problem that the excessive and illumination field of view of existing fiber endoscope diameter and image acquisition visual field can not be overlapping.
This utility model realizes like this, a kind of fibre opic endoscope, comprise: conduction optical fiber, described conduction Fiber optic image acquisition end is connected with image-forming objective lens, the output end of image of described conduction optical fiber is connected with a light source and conducting images device, described light source and conducting images device are used for light sources transmit to be transferred to described image-forming objective lens one end by described conduction optical fiber to the output end of image of described conduction optical fiber, and described light source and conducting images device are also for exporting the output image of described output end of image.
Preferably, described light source and conducting images device comprise one with the optical fiber interface that the output end of image of described conduction optical fiber is docked, Bidirectional Conduction maincenter, with described Bidirectional Conduction maincenter light path corresponding light source and an image output interface corresponding with described optical fiber interface light path.By described Bidirectional Conduction maincenter, light source is entered in conduction optical fiber, image can be carried out again being transmitted to image output interface as on eyepiece or photoelectric conversion device simultaneously, achieve interface input and output.
Preferably, described Bidirectional Conduction maincenter is spectroscope, described light source is arranged on described spectroscope plane of incidence side, described optical fiber interface is arranged on described dichroic mirror light direction, and light reflection to described optical fiber interface place is entered in described conduction optical fiber by described output end of image by described spectroscope by described light source.Spectroscope is utilized to realize light source and the light transmission passing to optical fiber, oppositely passing back of image can not be stopped simultaneously, achieve and the conduction optical fiber of endoscope is used for images and conductive outer light source simultaneously, make to conduct optical fiber both the image-forming objective lens output illuminating ray by collection terminal to be thrown light on, simultaneously again by image-forming objective lens collection reflection optical imagery and carry out transferring to tail end from conduction optical fiber, reach the object of image transmitting.
Preferably, at the described spectroscope opposite side relative with described light source entrance, be provided with ligh trap for absorbing transmitted ray in described spectroscopical transmission direction.Utilize ligh trap the light of transmission can be absorbed, oppositely pass to avoid transmitted ray the quality having influence on image back.
Preferably, a focus lamp is also provided with between described spectroscopical reflecting surface and described optical fiber interface.Utilize focus lamp to converge light source, can better light source be imported in optical fiber, improve light source utilization rate.
Preferably, described spectroscope is cubic type spectroscope.Cubic type spectroscopic structure is simple, and angle is 45 °, can be reflected by right angle by light very well, relatively easy on structure realizes.
Preferably, described spectroscope is plane spectroscope.
Preferably, described Bidirectional Conduction maincenter is focus lamp, described focus lamp focuses on described optical fiber interface place, described light source is arranged on around the central optical path region of focus lamp, light focusing is transmitted to described optical fiber interface place and enters in described conduction optical fiber by described output end of image by described focus lamp by described light source, and described central optical path region is for transmitting described output image.Utilize focus lamp by the output end of image of the focus incident light around central optical path region to conduction optical fiber, remain central optical path region to return output image simultaneously, achieve two-way non-interfering transmission.
Preferably, described optical fiber interface place is also provided with ligh trap for absorbing the light be not incident in described optical fiber interface.Utilize ligh trap can well absorb spuious light, avoid having influence on normal output image.
Preferably, what described light source was paired is symmetricly set on around described central optical path region.The light source of paired setting can well provide comparatively uniform focus light source, provides good illuminating effect.
Preferably, described light source is that an annular light source is looped around around described central optical path.Annular light source can provide better focused light source, provides and throws light on more uniformly.
This utility model is owing to being provided with a light source and conducting images device, its output end of image for described conduction optical fiber is connected with a light source and conducting images device, described light source and conducting images device are used for light sources transmit to be transferred to described image-forming objective lens one end by described conduction optical fiber to the output end of image of described conduction optical fiber, and described light source and conducting images device are also for exporting the output image of described output end of image.Like this, just do not need to increase lighting unit again to provide lighting source in the periphery of conduction optical fiber yet, reduce the integral diameter of endoscope, improve the scope of application of endoscope and improve the comfortableness of patient.In addition, because illuminating ray directly exports from image-forming objective lens, make illumination field of view and image acquisition visual field be all overlapping, improve the quality of image acquisition.
Accompanying drawing explanation
Fig. 1 is the fibre opic endoscope structural representation that this utility model provides embodiment one;
Fig. 2 is the fibre opic endoscope structural representation that this utility model provides embodiment two;
Fig. 3 is embodiment one and the ligh trap schematic diagram described in embodiment two in this utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.
Embodiment one
Be illustrated in figure 1 the specific embodiment of a kind of fibre opic endoscope that this utility model provides, this fibre opic endoscope comprises: conduction optical fiber 15, the image acquisition end of described conduction optical fiber 15 is connected with image-forming objective lens 16, the output end of image of described conduction optical fiber 15 is provided with a light source and conducting images device 20, described light source and conducting images device 20 comprise a spectroscope 22, one light source 21 being arranged on described spectroscope 22 plane of incidence side, one optical fiber interface 26 that arrange corresponding to described spectroscope 22 reflected light direction and image output interface, the output end of image of described conduction optical fiber 15 is connected on described optical fiber interface 26, like this, make spectroscope 22 and light source 21, light path correspondence is formed between optical fiber interface 26 and image output interface.In the present embodiment, described spectroscope 22 is as a Bidirectional Conduction maincenter, the light transmission between light source and described conduction optical fiber 15 can be realized, oppositely passing back of image can not be stopped simultaneously, achieve and the conduction optical fiber 15 of endoscope is used for images and conductive outer light source simultaneously, make conduction optical fiber 15 both the image-forming objective lens 16 by collection terminal can be exported illuminating ray to throw light on, gather the optical imagery of reflection by image-forming objective lens 16 again simultaneously and carry out transferring to tail end from conduction optical fiber 15, reach the object of image transmitting, like this, just do not need to increase lighting unit again to provide lighting source in the periphery of conduction optical fiber 15 yet, reduce the integral diameter of endoscope, improve the scope of application of endoscope and improve the comfortableness of patient.In addition, because illuminating ray directly exports from image-forming objective lens 16, make illumination field of view and image acquisition visual field be all overlapping, improve the quality of image acquisition, meanwhile, be also conducive to accurate control when performing the operation.
As further improvement of this embodiment, at described spectroscope 22 opposite side relative with described light source entrance 21, in the transmission direction of described spectroscope 22, be provided with ligh trap 24.As shown in Figure 3, ligh trap 24 can be the material such as graphite, absorption neutral density filter plate, and light enters ligh trap rear portion and absorbed, and remaining multiple reflections in ligh trap is to being finally predominantly absorbed.The present embodiment utilizes ligh trap 24 to absorb the transmitted ray of light source through spectroscope 22, stops it to be back to spectroscope 22, and avoiding it to enter eyepiece 23 affects imaging effect.
In the present embodiment, described image output interface is be arranged on the eyepiece 23 in spectroscope 22 transmission direction relative with described optical fiber interface 26, and certainly, in fact eyepiece 23 is set directly at optical fiber interface portion and is also fine, but like this and be unfavorable for observing, be also unfavorable for carrying out photoelectric conversion.Eyepiece 23 is arranged in spectroscope 22 transmission direction relative with optical fiber interface 26, and the image of collection directly can be back to eyepiece 23 by spectroscope 22, is convenient to observe or carry out photoelectric conversion.
As further improvement of this embodiment, between the reflecting surface of described spectroscope 22 and described optical fiber interface 26, be also provided with a focus lamp 25.Utilize focus lamp 25 to converge light source, better light source can be imported in conduction optical fiber 15, improve light source utilization rate.
In the present embodiment, described spectroscope 22 is cubic type spectroscope, certainly, as the spectroscopical alternative way of cubic type, other also can be adopted as prism, plane spectroscope etc.Cubic type spectroscopic structure is simple, and angle is 45 °, can be reflected by right angle by light very well, relatively easy on structure realizes.In the present embodiment, the splitting ratio of the reflection and transmission of described spectroscope 22 is 30:70, but transmittance is higher better can avoid the impact returning image.
As further improvement of this embodiment, described fibre opic endoscope is also provided with and photoelectric conversion interface (not shown), and this photoelectric conversion interface can be arranged on eyepiece position.Utilizing photoelectric conversion interface to convert the image of collection to digital picture is presented on electronic equipment, is convenient to carry out storing and watching.
Embodiment two
Be illustrated in figure 2 the specific embodiment of the another kind of fibre opic endoscope that this utility model provides, this fibre opic endoscope comprises: conduction optical fiber 15, the image acquisition end of described conduction optical fiber 15 is connected with image-forming objective lens 16, the output end of image of described conduction optical fiber 15 is provided with a light source and conducting images device 20, described light source and conducting images device 20 comprise focus lamp 27, described focus lamp 27 focuses on described optical fiber interface 26 place, light source 21 is arranged on around the central optical path region 29 of focus lamp 27, light focusing is transmitted to described optical fiber interface 26 place and enters in described conduction optical fiber 15 by described output end of image by described focus lamp 27 by described light source 21, described central optical path region 29 is for transmitting described output image to image output interface.Described focus lamp 27 with form between described optical fiber interface 26, light source 21 and image output interface that light path is corresponding to be arranged.The present embodiment utilize 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, achieve two-way non-interfering transmission.
In the present embodiment, be also provided with ligh trap equally at described optical fiber interface 26 place and be not incident to light in described optical fiber interface and some spurious rays, to avoid the impact on output image for absorbing.
In the present embodiment, described light source 21 can be paired be symmetricly set on described central optical path region 29 around, provides comparatively uniform focused light source, thus provides good illuminating effect.Certainly, described light source 21 can also be the uniform source of light of annular, so just can provide better focused light source, provides more uniform illuminating effect.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (11)
1. a fibre opic endoscope, comprise: conduction optical fiber, described conduction Fiber optic image acquisition end is connected with image-forming objective lens, it is characterized in that, the output end of image of described conduction optical fiber is connected with a light source and conducting images device, described light source and conducting images device are used for light sources transmit to be transferred to described image-forming objective lens one end by described conduction optical fiber to the output end of image of described conduction optical fiber, and described light source and conducting images device are also for exporting the output image of described output end of image.
2. fibre opic endoscope as claimed in claim 1, it is characterized in that, described light source and conducting images device comprise one with the optical fiber interface that the output end of image of described conduction optical fiber is docked, Bidirectional Conduction maincenter, with described Bidirectional Conduction maincenter light path corresponding light source and an image output interface corresponding with described optical fiber interface light path.
3. fibre opic endoscope as claimed in claim 2, it is characterized in that, described Bidirectional Conduction maincenter is spectroscope, described light source is arranged on described spectroscope plane of incidence side, described optical fiber interface is arranged on described dichroic mirror light direction, and light reflection to described optical fiber interface place is entered in described conduction optical fiber by described output end of image by described spectroscope by described light source.
4. fibre opic endoscope as claimed in claim 3, is characterized in that, at the described spectroscope opposite side relative with described light source entrance, in described spectroscopical transmission direction, is provided with ligh trap for absorbing transmitted ray.
5. fibre opic endoscope as claimed in claim 3, it is characterized in that, be also provided with a focus lamp between described spectroscopical reflecting surface and described optical fiber interface, described focus lamp focuses on described optical fiber interface place.
6. fibre opic endoscope as claimed in claim 3, it is characterized in that, described spectroscope is cubic type spectroscope.
7. fibre opic endoscope as claimed in claim 3, it is characterized in that, described spectroscope is plane spectroscope.
8. fibre opic endoscope as claimed in claim 2, it is characterized in that, described Bidirectional Conduction maincenter is focus lamp, described focus lamp focuses on described optical fiber interface place, described light source is arranged on around the central optical path region of focus lamp, light focusing is transmitted to described optical fiber interface place and enters in described conduction optical fiber by described output end of image by described focus lamp by described light source, and described central optical path region is for transmitting described output image.
9. fibre opic endoscope as claimed in claim 7, it is characterized in that, described optical fiber interface place is also provided with ligh trap for absorbing the light be not incident in described optical fiber interface.
10. fibre opic endoscope as claimed in claim 8, it is characterized in that, what described light source was paired is symmetricly set on around described central optical path region.
11. fibre opic endoscopes as claimed in claim 8, is characterized in that, described light source is that an annular light source is looped around around described central optical path region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520684360.8U CN205083432U (en) | 2015-09-06 | 2015-09-06 | Optical -fiber endoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520684360.8U CN205083432U (en) | 2015-09-06 | 2015-09-06 | Optical -fiber endoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205083432U true CN205083432U (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520684360.8U Withdrawn - After Issue CN205083432U (en) | 2015-09-06 | 2015-09-06 | Optical -fiber endoscope |
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| CN (1) | CN205083432U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105699A (en) * | 2015-09-06 | 2015-12-02 | 深圳英美达医疗技术有限公司 | Fiber optic endoscope |
| WO2018219130A1 (en) * | 2017-06-01 | 2018-12-06 | 京东方科技集团股份有限公司 | Fiber optic endoscope and manufacturing method therefor |
| CN109839734A (en) * | 2017-11-27 | 2019-06-04 | 汉克沙斯伍夫公司 | Optical arrangement for endoscope and the endoscope with the optical arrangement |
-
2015
- 2015-09-06 CN CN201520684360.8U patent/CN205083432U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105699A (en) * | 2015-09-06 | 2015-12-02 | 深圳英美达医疗技术有限公司 | Fiber optic endoscope |
| WO2018219130A1 (en) * | 2017-06-01 | 2018-12-06 | 京东方科技集团股份有限公司 | Fiber optic endoscope and manufacturing method therefor |
| CN109839734A (en) * | 2017-11-27 | 2019-06-04 | 汉克沙斯伍夫公司 | Optical arrangement for endoscope and the endoscope with the optical arrangement |
| CN109839734B (en) * | 2017-11-27 | 2022-07-22 | 汉克沙斯伍夫公司 | Optical arrangement for an endoscope and endoscope having such an optical arrangement |
| US11454801B2 (en) | 2017-11-27 | 2022-09-27 | Henke-Sass, Wolf Gmbh | Optical arrangement for an endoscope and endoscope having such an optical arrangement |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160316 Effective date of abandoning: 20170322 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |