CN106618458A - Multispectral endoscopic imaging device - Google Patents

Multispectral endoscopic imaging device Download PDF

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Publication number
CN106618458A
CN106618458A CN201710046429.8A CN201710046429A CN106618458A CN 106618458 A CN106618458 A CN 106618458A CN 201710046429 A CN201710046429 A CN 201710046429A CN 106618458 A CN106618458 A CN 106618458A
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narrow band
light
colour wheel
band pass
light source
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CN201710046429.8A
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CN106618458B (en
Inventor
何亚云
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Jiangsu Eagle Medical Instrument Co Ltd
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Jiangsu Eagle Medical Instrument Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0638Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements providing two or more wavelengths
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0653Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements with wavelength conversion
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0661Endoscope light sources
    • A61B1/0669Endoscope light sources at proximal end of an endoscope

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)

Abstract

The invention relates to a multispectral endoscopic imaging device comprising an endoscopic lens, a CMOS imaging unit, an image processing unit, a display unit, a storage unit and a light source unit. Wherein, the endoscopic lens is detachably connected to the CMOS imaging unit, and the CMOS imaging unit, the display unit and the storage unit are connected to connection ends of the image processing unit correspondingly; the multispectral endoscopic imaging device further comprises a narrow band filter color wheel, a color wheel servo motor and a control mechanism; the narrow band filter color wheel is connected to the color wheel servo motor in a transmission manner, the light source unit is connected to the narrow band filter color wheel, and the color wheel servo motor and the image processing unit are connected to the control mechanism; the narrow band filter color wheel comprises a narrow band filter disc, which is provided with a plurality of different narrow band filters circumstantially. The multispectral endoscopic imaging device has the advantages that the light energy utilizing rate is high, the imaging resolution is high, and the optical path design is simple.

Description

A kind of multi-spectrum endoscopic imaging device
Technical field
The present invention relates to medical electronic endoscopes imaging inspection technical field, and in particular to a kind of multi-spectrum endoscopic imaging Device.
Background technology
Endoscopic imaging device for operation and other goals of medicine is generally comprised at endoscope mirror body, light source and image Reason unit(CCU).Wherein endoscope mirror body is partial insertion inside of human body, there is provided light path carrier and instrument channel, light source master Illumination in vivo, graphics processing unit are provided(CCU)It is the critical component of image procossing.The imaging letter obtained by imaging device Number through graphics processing unit(CCU)Predetermined image processing techniques is treated as image and shows on a monitor.Thus, Operator can observe the inside of body by watching the image shown on monitor.
The endoscopic imaging device is used for the internal various positions of observation in preoperative or art.The endoscope of observation different parts Structure and size it is otherwise varied, but principle is identical, and light source and graphics processing unit(CCU)It is generally applicable.
The different qualities of tissue, their photosensitivities to different wave length are different, are preferably to distinguish different tissues Or the different tissues even different lesions of different tissues are shown on a monitor, need by narrow-band spectrum identification.But it is existing Technology in, have plenty of using the wavelength spectroscopic imaging technology related to locus, using the movement of many catch choosing difference The picture of wavelength is used to be shown as picture, but the capacity usage ratio of this imaging mode light is low, and imaging resolution is not high, and light path Design is troublesome, it is difficult to meet the growth requirement of endoscope high definition imaging.
The content of the invention
It is an object of the invention to provide a kind of capacity usage ratio of not only light is high, imaging resolution is high, and light path design Simple multi-spectrum endoscopic imaging device, to overcome the deficiencies in the prior art.
In order to achieve the above object, the technical scheme is that:A kind of multi-spectrum endoscopic imaging device, including interior peep Camera lens, CMOS camera assemblies, graphics processing unit, display unit, memory cell and light source part;Wherein:
The endoscope head is detachably connected with CMOS camera assemblies, and the endoscope head provides path channels, and its end is direct Into human body tissue regions to be measured, the light source part, for providing visible wavelength and near-infrared wavelength model are at least covered The illumination light of the continuous spectrum for enclosing;
The connection end connection corresponding with graphics processing unit respectively of the CMOS camera assemblies, display unit and memory cell, institute CMOS camera assemblies are stated, the reflected light of the tissue regions to be measured of the human body for transmitting according to endoscope head obtains organization chart picture, Described image processing unit, for transmitting and processes organization chart picture, and the display unit is described to deposit for showing organization chart picture Storage unit is used for storage organization image;
Its innovative point is:
Also include narrow band pass filter colour wheel, the narrow band pass filter colour wheel, for leaching different spectrum from the light source part Narrow band light, and the narrow band light of the different spectrum continuously covers whole spectrum of the illumination light that the light source part is provided and near red External spectrum scope;
Colour wheel servomotor, the colour wheel servomotor is rotated for controlling narrow band pass filter colour wheel;
Controlling organization, the controlling organization, for controlling graphics processing unit and colour wheel servomotor;
The narrow band pass filter colour wheel is connected with colour wheel servo motor transmission, and light source part is located at the one of narrow band pass filter colour wheel Side, the colour wheel servomotor and graphics processing unit are connected respectively with controlling organization;
The narrow band pass filter colour wheel includes narrow band pass filter rotating disk, and the circumferencial direction of the narrow band pass filter rotating disk is provided with many Individual different narrow band pass filters, and the center of narrow band pass filter rotating disk have can be by the light hole of full spectrum light source, the colour wheel Servomotor is carried for selecting the narrow band light optical filter entrance of the control narrow-band-filter colour wheel or exiting the light source part For illumination light light path.
In above-mentioned technical proposal, the narrow band pass filter colour wheel leaches the wavelength bandwidth of narrow band light in 20 ~ 40 nanometers of models In enclosing.
In above-mentioned technical proposal, it is 30 nanometers that the narrow band pass filter colour wheel leaches the wavelength bandwidth of narrow band light.
In above-mentioned technical proposal, the narrow-band-filter colour wheel, for from the light source part leach near-infrared, it is red, green, The light of blue difference spectrum.
In above-mentioned technical proposal, the circumferencial direction of the narrow band pass filter rotating disk is provided with 3 different narrow band pass filters, Each narrow band pass filter may filter that at least 4 independent narrow-band spectrums, and at least wavelength bandwidth of 4 independent narrow-band spectrums Scope is incomplete same.
In above-mentioned technical proposal, also including transmission mechanism, the transmission mechanism includes first bearing seat, second bearing Seat, main synchronous pulley and from synchronous pulley, the main synchronous pulley is located in first bearing seat, and from synchronous pulley the second axle is located at In bearing, the output shaft of the colour wheel servomotor is connected with main synchronous belt pulley transmission, and narrow band pass filter colour wheel is located at from synchronization On belt wheel, and main synchronous pulley and from synchronous pulley by toothed belt transmission connect.
In above-mentioned technical proposal, the light source part uses high-brightness LED cold light source, and the light of light source part is defeated Go out end to be connected with narrow band pass filter colour wheel.
In above-mentioned technical proposal, the CMOS camera assemblies include optical interface, camera and data line, described Endoscope head is detachably connected by buckle with one end of optical interface, camera and data line simultaneously with optical interface The other end connects, and the endoscope head is connected with light source part by light guide bundles.
In above-mentioned technical proposal, the illumination light that the light source part is provided is including the full spectrum light including infrared light Source, and wavelength bandwidth is in the range of 400 ~ 900nm.
In above-mentioned technical proposal, the light hole of the narrow band pass filter rotating disk is circular light hole.
The good effect that has of the present invention is:Using present invention additionally comprises narrow band pass filter colour wheel, the narrow-band-filter Piece colour wheel, for leaching the narrow band light of different spectrum from the light source part, and the narrow band light of the different spectrum is continuously covered Whole spectrum and near infrared spectral range of the illumination light that the light source part is provided;Colour wheel servomotor, the colour wheel servo Motor, rotates for controlling narrow band pass filter colour wheel;Controlling organization, the controlling organization, for control graphics processing unit and Colour wheel servomotor;The narrow band pass filter colour wheel is connected with colour wheel servo motor transmission, and light source part is located at narrow-band-filter The side of piece colour wheel, the colour wheel servomotor and graphics processing unit are connected respectively with controlling organization;The narrow band pass filter Colour wheel includes narrow band pass filter rotating disk, and the circumferencial direction of the narrow band pass filter rotating disk is provided with multiple different narrow band pass filters, And the center of narrow band pass filter rotating disk is had and can be controlled for selection by the light hole of full spectrum light source, the colour wheel servomotor The narrow band light optical filter for making the narrow-band-filter colour wheel enters or exits the light path of the illumination light that the light source part is provided;This Invention, can be with the multispectral image of 30 frames/16 different wave lengths of second acquisition, its frame under multiple different narrow band pass filter effects Rate equivalent to 480 frames/second, compared with existing technology, for example NBI technologies it be only capable of realizing the imaging of 2 kinds of 30 frames of wave band/seconds, And the present invention is capable of achieving the multispectral high frame per second imaging of 16 kinds of 30 frames of wave band/seconds, current multispectral imaging device is significantly better than Frame per second.The multispectral image data that the present invention can provide pathological tissues and normal structure with various variable spectral forms, one is Row narrow band light can be chosen from the visible spectrum and near infrared spectral range of the illumination light according to clinical demand leach it is specific narrow Band spectrum, real-time selection provides optimal pathological tissues and is woven with the imaging of tissue of obvious vision difference with normal group, reduces doctor The difficulty of pathological tissues and normal structure is differentiated, facilitates the judgement during surgical.
Description of the drawings
Fig. 1 is a kind of dimensional structure diagram of specific embodiment of the invention;
Fig. 2 is the principle block diagram of the present invention;
Fig. 3 is the structural representation of the transmission mechanism of the present invention;
Fig. 4 is the narrow band pass filter colour wheel structural representation in Fig. 1.
Specific embodiment
Below in conjunction with accompanying drawing and the embodiment for being given, the present invention is further illustrated, but is not limited thereto.
As shown in Figure 1,2,3, 4, a kind of multi-spectrum endoscopic imaging device, including endoscope head 1, CMOS camera assemblies 2, Graphics processing unit 3, display unit 4, memory cell 5 and light source part 6;Wherein:
The endoscope head 1 is detachably connected with CMOS camera assemblies 2, and the endoscope head 1 provides path channels, and its end is straight Tap into into human body tissue regions to be measured, the endoscope head 1 is used to filter the light source part 6 and narrow band pass filter colour wheel 7 Light imports tissue;
The light source part 6, for providing the illumination of the continuous spectrum at least covering visible wavelength and near infrared wavelength region Light, its colour rendering index meets Standard;
The CMOS camera assemblies 2, display unit 4 and memory cell 5 connect respectively with the corresponding connection end of graphics processing unit 3 Connect, the CMOS camera assemblies 2, the reflected light of the tissue regions to be measured of the human body for being transmitted according to endoscope head 1 obtains group Knit image, described image processing unit 3 for transmitting and processes organization chart picture, the display unit 4, for showing organization chart Picture, the memory cell 5 is used for storage organization image;
That is described image processing unit 3, display unit 4, for gathering, transmitting, optimizing picture signal and show described image;
Also include narrow band pass filter colour wheel 7, the narrow band pass filter colour wheel 7, for leaching different spectrum from the light source part 6 Narrow band light, and the narrow band light of the different spectrum continuously cover the light source part 6 offer illumination light whole spectrum and Near infrared spectral range, i.e. narrow band pass filter colour wheel 7 are used to leach a series of narrow band lights from the light source part 6, and described one is Row narrow band light uninterruptedly covers whole spectrum and near infrared spectral range of the illumination light;
Colour wheel servomotor 8, the colour wheel servomotor 8 is rotated for controlling narrow band pass filter colour wheel 7;
Controlling organization 9, the controlling organization 9, for controlling graphics processing unit 3 and colour wheel servomotor 8;
The narrow band pass filter colour wheel 7 is connected with colour wheel servomotor 8, and light source part 6 is located at narrow band pass filter colour wheel 7 Side, the colour wheel servomotor 8 and graphics processing unit 3 are connected respectively with controlling organization 8;
The narrow band pass filter colour wheel 7 includes narrow band pass filter rotating disk 7-1, the circumferencial direction of the narrow band pass filter rotating disk 7-1 It is provided with multiple different narrow band pass filter 7-2, and the center of narrow band pass filter rotating disk 7-1 has and can pass through the logical of full spectrum light source Unthreaded hole 7-1-1, the colour wheel servomotor 8 is used to select the narrow band light optical filter 7-2 of the control narrow-band-filter colour wheel 7 to enter Or exit the light source part 6 offer illumination light light path.
Narrow band pass filter colour wheel 7 of the present invention leaches the wavelength bandwidth of narrow band light in 20 ~ 40 nanometer ranges.It is described narrow The wavelength bandwidth for leaching narrow band light with optical filter colour wheel 7 is 30 nanometers.
The narrow-band-filter colour wheel 7, for leaching the light of near-infrared, red, green, blue difference spectrum from the light source part 6. The action of the control colour wheel of the controlling organization 9 servomotor 8, so, the colour wheel servomotor 8 selects control narrow-band-filter colour wheel Different filter discs on 7 enter the light path.
The narrow band pass filter colour wheel 7, colour wheel servomotor 8 and controlling organization 9 are quick together to select filtration light source part 6 The narrow-band spectrum of bandwidth different wave length between 20 ~ 40 nanometers provides in-vivo tissue illumination, and controls in certain sequence different Narrow band pass filter 7-2 enter or exit display light path, to ensure that the observed tissue of different parts is clearly indicated.
As shown in figure 4, the circumferencial direction of the narrow band pass filter rotating disk 7-1 is provided with 3 different narrow band pass filter 7-2, Each narrow band pass filter 7-2 may filter that at least 4 independent narrow-band spectrums, and at least wavelength of 4 independent narrow-band spectrums Bandwidth range is incomplete same.The narrow band pass filter rotating disk 7-1 of i.e. described narrow band pass filter colour wheel 7 along the circumferential direction installs 3 Different narrow band pass filters, each optical filter may filter that at least 4 independent narrow-band spectrums, and the independent narrow-band spectrum wavelength Bandwidth range is incomplete same, to ensure the diversity that image shows.
As shown in figure 3, in order that present configuration is more reasonable, compact, and guarantee that narrow band pass filter colour wheel 7 is rotated Accuracy is high, present invention additionally comprises transmission mechanism 10, the transmission mechanism 10 includes first bearing seat 10-1, second bearing seat 10-2, main synchronous pulley 10-3 and from synchronous pulley 10-4, the main synchronous pulley 10-3 is located in first bearing seat 10-1, from Synchronous pulley 10-4 is located in second bearing seat 10-2, and the output shaft of the colour wheel servomotor 8 is passed with main synchronous pulley 10-3 Dynamic connection, narrow band pass filter colour wheel 7 is located at from synchronous pulley 10-4, and main synchronous pulley 10-3 and logical from synchronous pulley 10-4 Cross toothed belt transmission connection.
The light source part 6 uses high-brightness LED cold light source, and the light output end and narrow-band-filter of light source part 6 Piece colour wheel 7 connects.
As shown in figure 1, the CMOS camera assemblies 2 include optical interface, camera and data line, the endoscope 1 is detachably connected by buckle with one end of optical interface, and camera and data line are simultaneously another with optical interface End connection, the light source part 6 of the endoscope head 1 is connected by light guide bundles 1-1.
Wherein, the optical interface of the CMOS camera assemblies 2 is used for zoom or focuses, and the optical interface front end is peeped with interior Camera lens 1 changes different endoscope heads 1, the optical interface rear end and camera with click on fashion connection, easy disassembly (CCU), data line with the connection of optics C interface, focus when facilitating practical operation and wait optical parametric and most preferably shown with reaching Show effect.
Graphics processing unit of the present invention 3 is one of the core component for determining image display effect of the present invention, including but The process to concepts such as conventional visible spectrum, narrow-band spectrums is not limited to, also comprising the process to infrared light.Wherein to specific wavelength The ultrared treatment technology of scope, can selectively show tissue look-out station 1mm states at a depth below.
As shown in figure 1, graphics processing unit of the present invention 3, display unit 4, memory cell 5, light source part 6 and control Mechanism 9 is each attached in casing 11, and is additionally provided with power supply 12, subrack 13, wave filter 14 and radiator fan 15, institute in casing 11 State power supply 12, subrack 13, wave filter 14 and radiator fan 15 to electrically connect with the corresponding connection end of controlling organization 9, wherein, institute State subrack 13 for extend connection, wave filter 14 is used for filtering, and radiator fan 15 is prevented for removing heat in casing 11 The interior temperature of casing 1 spends height, and causes other part cisco unity malfunctions.Guidance panel is housed in the end face outside of the casing 11 16, can be utilized for human-computer dialogue.
The illumination light that light source part of the present invention 6 is provided is and the wavelength band including the full spectrum light source including infrared light It is wide in the range of 400 ~ 900nm.
As shown in figure 4, the light hole 7-1-1 of the narrow band pass filter rotating disk 7-1 is circular light hole.The narrow-band-filter Piece rotating disk 7-1 has the light hole 7-1-1 that a full spectrum light source passes through, for switching into light path in the narrow band pass filter 7-2, and And narrow band pass filter colour wheel thang-kng when switching out light path;Or the color filter wheel does not have thang-kng space, described narrow When band optical filter 7-2 switches into light path, the colour wheel servomotor 8 and controlling organization 9 control the narrow band pass filter 7-2 rotations Turn so that different narrow band pass filter 7-2 switch out light path.
The present invention has two kinds of mode of operations, and one kind is color dispersing pattern, and narrow-band-filter colour wheel 7 enters light under the pattern Road, narrow band light optical filter 7-2 removes light path, and the white light that now light source sends is filtered into color lighting after colored filter Light, enters human exposure and organizes and by Tissue reflectance or absorption, then by the CMOS camera assemblies 2 by endoscope head 1 Camera imaging;Another kind is narrow band light scan pattern, and colored filter removes light path, narrow band light filter set under the pattern Into light path, and narrow band light optical filter constantly switches.The white light that light source sends generates arrowband photograph after narrow band light optical filter Mingguang City, Jing endoscope bodies are organized into human exposure, after tissue bounce-back or absorbing, by black and white camera imaging.
The present invention, can be with the light more of 30 frames/16 different wave lengths of second acquisition under multiple different narrow band pass filter effects Spectrogram picture, its frame per second equivalent to 480 frames/second, compared with existing technology, for example NBI technologies it be only capable of realizing 2 kinds of wave bands 30 The imaging of frame/second, and the present invention is capable of achieving the multispectral high frame per second imaging of 16 kinds of 30 frames of wave band/seconds, is significantly better than current many Optical spectrum imaging device frame per second.
The multispectral image data that the present invention can provide pathological tissues and normal structure with various variable spectral forms, it is real When select to provide optimal pathological tissues and be woven with the imaging of tissue of obvious vision difference with normal group, reduce doctor and differentiate pathology group The difficulty with normal structure is knitted, facilitates the judgement during surgical.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (10)

1. a kind of multi-spectrum endoscopic imaging device, including endoscope head(1), CMOS camera assemblies(2), graphics processing unit (3), display unit(4), memory cell(5)And light source part(6);Wherein:
The endoscope head(1)With CMOS camera assemblies(2)It is detachably connected, the endoscope head(1)Path channels are provided, its End is directly entered human body tissue regions to be measured, the light source part(6), for providing visible wavelength and near is at least covered The illumination light of the continuous spectrum of infrared wavelength range;
The CMOS camera assemblies(2), display unit(4)And memory cell(5)Respectively with graphics processing unit(3)Connect accordingly Connect end connection, the CMOS camera assemblies(2), for according to endoscope head(1)The human body of transmission tissue regions to be measured it is anti- Penetrate light and obtain organization chart picture, described image processing unit(3), for transmitting and process organization chart picture, the display unit(4), For showing organization chart picture, the memory cell(5)For storage organization image;
It is characterized in that:
Also include narrow band pass filter colour wheel(7), the narrow band pass filter colour wheel(7), for from the light source part(6)Leach not The light source part is continuously covered with the narrow band light of the narrow band light of spectrum, and the different spectrum(6)The illumination light of offer it is complete Portion's spectrum and near infrared spectral range;
Colour wheel servomotor(8), the colour wheel servomotor(8), for controlling narrow band pass filter colour wheel(7)Rotate;
Controlling organization(9), the controlling organization(9), for controlling graphics processing unit(3)With colour wheel servomotor(8);
The narrow band pass filter colour wheel(7)With colour wheel servomotor(8)It is connected, and light source part(6)It is located at narrow-band-filter Piece colour wheel(7)Side, the colour wheel servomotor(8)And graphics processing unit(3)Respectively with controlling organization(8)Connection;
The narrow band pass filter colour wheel(7)Including narrow band pass filter rotating disk(7-1), the narrow band pass filter rotating disk(7-1)Circle Circumferential direction is provided with multiple different narrow band pass filters(7-2), and narrow band pass filter rotating disk(7-1)Center have can pass through full light The light hole of spectrum light source(7-1-1), the colour wheel servomotor(8)For selecting the control narrow-band-filter colour wheel(7)It is narrow Band light optical filter(7-2)Into or exit the light source part(6)The light path of the illumination light of offer.
2. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The narrow band pass filter colour wheel (7)The wavelength bandwidth of narrow band light is leached in 20 ~ 40 nanometer ranges.
3. multi-spectrum endoscopic imaging device according to claim 2, it is characterised in that:The narrow band pass filter colour wheel (7)The wavelength bandwidth for leaching narrow band light is 30 nanometers.
4. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The narrow-band-filter colour wheel(7), For from the light source part(6)Leach near-infrared, the light of red, green, blue difference spectrum.
5. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The narrow band pass filter rotating disk (7-1)Circumferencial direction be provided with 3 different narrow band pass filters(7-2), each narrow band pass filter(7-2)May filter that at least 4 Individual independent narrow-band spectrum, and the wavelength band of at least 4 independent narrow-band spectrums is incomplete same.
6. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:Also include transmission mechanism(10), The transmission mechanism(10)Including first bearing seat(10-1), second bearing seat(10-2), main synchronous pulley(10-3)With from same Step belt wheel(10-4), the main synchronous pulley(10-3)It is located at first bearing seat(10-1)On, from synchronous pulley(10-4)It is located at Second bearing seat(10-2)On, the colour wheel servomotor(8)Output shaft and main synchronous pulley(10-3)It is connected, arrowband Optical filter colour wheel(7)It is located at from synchronous pulley(10-4)On, and main synchronous pulley(10-3)With from synchronous pulley(10-4)Pass through Toothed belt transmission connects.
7. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The light source part(6)Using Be high-brightness LED cold light source, and light source part(6)Light output end and narrow band pass filter colour wheel(7)Connection.
8. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The CMOS camera assemblies(2) Including optical interface, camera and data line, the endoscope head(1)It is detachable with one end of optical interface by buckle Connection, camera and data line are connected with the other end of optical interface simultaneously, the endoscope head(1)With light source part (6)By light guide bundles(1-1)Connection.
9. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The light source part(6)There is provided Illumination light be that, including the full spectrum light source including infrared light, and wavelength bandwidth is in the range of 400 ~ 900nm.
10. multi-spectrum endoscopic imaging device according to claim 1, it is characterised in that:The narrow band pass filter rotating disk (7-1)Light hole(7-1-1)It is circular light hole.
CN201710046429.8A 2017-01-22 2017-01-22 A kind of multi-spectrum endoscopic imaging device Active CN106618458B (en)

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