CN207412149U - Optical spectrum imagers with two waveband path channels - Google Patents
Optical spectrum imagers with two waveband path channels Download PDFInfo
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- CN207412149U CN207412149U CN201720398179.XU CN201720398179U CN207412149U CN 207412149 U CN207412149 U CN 207412149U CN 201720398179 U CN201720398179 U CN 201720398179U CN 207412149 U CN207412149 U CN 207412149U
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Abstract
The utility model discloses a kind of optical spectrum imagers with two waveband path channels, imaging system includes image-forming objective lens, the optical filter II for imaging optical path path to be divided into the Amici prism II in transmitted light path and reflected light path, the optical filter I that corresponding transmitted light path is set and corresponding reflected light path setting；Optical spectrum imagers further include the checking bias slice for the linearly polarized light that adjustable polarization direction is formed with the light source assembly；Using light path branch, it can be achieved to gather the spectral value in brain tissue to be detected under two different specific band light simultaneously simultaneously to be analyzed, avoid the change because of detection time, the perfusion state of blood and oxygenation status change in tissue, temporal resolution can be improved, reduces error；And the polarization direction of linearly polarized light that the polarization direction of checking bias slice and light source assembly are formed is adjustable, eliminates the bias light for treating that the reflection of brain tissue surface is brought, increases the sensibility of data snooping.
Description
Technical field
The utility model is related to biomedical engineering field, more particularly to a kind of spectrum with two waveband path channels into
As instrument.
Background technology
The zone of action for being accurately positioned brain function is the premise that neurosurgery is precisely performed the operation and utmostly Resection of intracranial
Lesion simultaneously as much as possible retains brain function, the key for reducing neurotrosis.Brain tissue under quiescent condition under state of activation
The consumption of blood oxygen is had differences, the ratio of oxyhemoglobin and deoxyhemoglobin is also different.Based on oxyhemoglobin
There is different absorption spectrums with deoxyhemoglobin, using this different spectral signature, blood in tissue can be detected and supplied
The variation of state or blood oxygen saturation is answered, for detecting the blood oxygen perfusion state of tissue and blood oxygen metabolism state, so as to orient
It is activated and needs the brain area laid special stress on protecting in surgical procedure.Existing spectrum analysis is difficult to use in the positioning of brain domain,
Reason is：(1) present spectrum analysis more need successively collect different-waveband spectral value then analyzed, with detection when
Between change, the perfusion state of blood and oxygenation status have changed in tissue, it is difficult to collect in same time point tissue
The spectral value of different-waveband is analyzed, and causes effectively to analyze data.(2) existing oxygen-containing content of hemoglobin
Come from tissue surface with the modal data overwhelming majority that diffuses that the spectral device of deoxyhemoglobin content detection is detected
The light of reflection, and this some light does not carry the spectral information of organization internal and as background so that data analysis it is quick
Perception and accuracy substantially reduce.(3) under quiescent condition with the difference of oxygenation status is smaller in brain tissue under state of activation, at present
Spectral device detection method and image procossing mode cannot be sensitive active region is accurately oriented.
It is different therefore, it is necessary to design the optical spectrum imagers of hemoglobin oxygen-containing from existing detection and deoxyhemoglobin content
Spectrographic detection and analysis system, and set up corresponding data processing method, brought with removing the light reflection of brain tissue surface
Background, reduce system noise；It realizes and gathers the spectral information of different-waveband simultaneously and analyzed, improve temporal resolution,
Reduce error；By data processing amplify quiescent condition under under state of activation in brain tissue oxygenation status difference, increase brain
The sensibility of functional areas detection.
Utility model content
In view of this, the utility model provides a kind of optical spectrum imagers with two waveband path channels, not only can be with
The background that removal surface light reflection is brought, reduces system noise；And it can realize while gather the spectral information of different-waveband
And analyzed, temporal resolution can be improved, reduces error；Can also amplify under quiescent condition under state of activation in brain tissue
The nuance of oxygenation status increases the sensibility of positioning.
The optical spectrum imagers with two waveband path channels of the utility model, including：
Light source assembly, for forming linearly polarized light；
Amici prism I focuses on linearly polarized light reflection in biological tissue to be detected and to being returned from biological tissue to be detected
The light transmission returned；
The imaging system for imaging is further included, imaging system includes：
Image-forming objective lens, for being returned from biological tissue to be detected and light through Amici prism I passes through and is imaged；
Amici prism II is arranged on image-forming objective lens rear for imaging optical path path to be divided into transmission along imaging optical path path
Light path and reflected light path；
Optical filter I, the transmitted light path of corresponding Amici prism II is set to be passed through for the first specific band light；
Optical filter II, the reflected light path of corresponding Amici prism II is set to be passed through for the second specific band light；
Imaging system further includes first band detector and the second band for corresponding that optical filter I and optical filter II are set
Detector；
Optical spectrum imagers further include to remove the checking bias slice of non-targeted light in imaging optical path, the polarization direction of checking bias slice with
The polarization direction for the linearly polarized light that light source assembly is formed is vertical.
Further, optical filter I and optical filter II are narrow band pass filter, the first specific band light corresponding to optical filter I
Wavelength for any one in 530-560nm, the wavelength of the second specific band light corresponding to optical filter II is 600-640nm
In any one.
Further, light source assembly includes at least cold light source and becomes rising for linearly polarized light for cold light source to be sent illumination light
Inclined piece, light source assembly are directly installed on Amici prism I；The incident direction of the linearly polarized light reflected through Amici prism I and outgoing
Direction is perpendicular.
Further, checking bias slice is arranged on image-forming objective lens along imaging optical path path rear；Amici prism I and Amici prism II are equal
For semi-transparent semi-reflecting prism.
Further, housing and the object lens mounting assembly being arranged on housing are further included, object lens mounting assembly includes being fixed on
The supporting sleeve of housing, in a manner of it can be relatively rotated by driving with supporting sleeve cooperation actuating sleeve and with being placed on drive in screw thread
Dynamic set is set simultaneously positions fixed positioning sleeve for image-forming objective lens, and positioning sleeve by be axially movable circumferencial direction it is fixed in a manner of
Inside it is placed on supporting sleeve setting.
Further, further include that actuating sleeve is driven to rotate so that positioning sleeve is focused compared with supporting sleeve axial movement
Focusing drive component, focusing drive component include driven wheel of differential fixed with actuating sleeve housing circumference and driven wheel of differential
It the drive bevel gear that is engaged in a manner that axis intersects vertically and is fixed with drive bevel gear circumference and stretches out the driving outside housing
Axis.
Further, positioning sleeve includes the interior positioning sleeve body for being equipped with positioning chuck and coordinates with positioning chuck to image-forming objective lens
The detent mechanism of positioning locking is formed, shape between positioning chuck and detent mechanism can be caught in by being provided on the outside of the cylinder of image-forming objective lens
Into the snap arm of location fit.
The beneficial effects of the utility model：The optical spectrum imagers with two waveband path channels of the utility model, are adopted
With double source detector, it can be achieved that gathering the spectral value in brain tissue to be detected under two different specific band light simultaneously and being divided
Analysis, avoids the change because of detection time, and the perfusion state of blood and oxygenation status change in tissue, can improve the time point
Resolution reduces error；And the polarization direction of linearly polarized light that the polarization direction of checking bias slice and light source assembly are formed is adjustable, shape
Be orthogonal polarization, and the light that biological tissue's internal reflection only to be detected comes out is received by a detector, and eliminates biology to be detected
The bias light that tissue surface reflection is brought increases the sensibility of data snooping；
Description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the light path principle schematic diagram of the optical spectrum imagers of the utility model；
Fig. 2 is the structure diagram of the optical spectrum imagers of the utility model；
Fig. 3 is enlarged drawing at A in Fig. 2；
Fig. 4 is the three-dimensional structure diagram of the optical spectrum imagers of the utility model.
Specific embodiment
Fig. 1 is the light path principle schematic diagram of the optical spectrum imagers of the utility model；Fig. 2 is the light spectrum image-forming of the utility model
The structure diagram of instrument；Fig. 3 is enlarged drawing at A in Fig. 2；Fig. 4 is the three-dimensional structure diagram of the optical spectrum imagers of the utility model, such as
Shown in figure：The optical spectrum imagers with two waveband path channels of the present embodiment, the light source group including being used to be formed linearly polarized light
Part and linearly polarized light reflection is focused in biological tissue to be detected and light transmissive point to being returned from biological tissue to be detected
Light prism I 2；Biological tissue to be detected is placed on working face 1
The imaging system for imaging is further included, imaging system includes：
Image-forming objective lens 3, for being returned from biological tissue to be detected and light through Amici prism I 2 passes through and is imaged；
Amici prism II 4 is arranged on 3 rear of image-forming objective lens for imaging optical path path to be divided into along imaging optical path path
Penetrate light path and reflected light path；
Optical filter I 5, the transmitted light path of corresponding Amici prism II 4 is set to be passed through for the first specific band light；
Optical filter II 6, the reflected light path of corresponding Amici prism II 4 is set to be passed through for the second specific band light；
Imaging system further includes the first band detector 7 and second for corresponding that optical filter I 5 and optical filter II 6 are set
Band detector 8；
Optical spectrum imagers further include to remove the checking bias slice 9 of non-targeted light in imaging optical path, the polarization direction of checking bias slice 9
The polarization direction of the linearly polarized light formed with light source assembly is adjustable.
Wherein, checking bias slice 9 is adjustable for polarization direction, is realized by way of it can be driven in rotation；That is imaging optical path road
Footpath for light source assembly → Amici prism I 2 → biological tissue to be detected → I 2 → image-forming objective lens of Amici prism, 3 → checking bias slice 9 → point
Light prism II 4 enters corresponding detector through optical filter I 5 and optical filter II 6 respectively through the light splitting of Amici prism II 4 for two paths,
Corresponding each detector sets there are one CCD units to carry out image procossing, wherein, vertical optical axis, the imaging object of Amici prism I 2
Optical axis, the optical axis coincidence of Amici prism II 4 of mirror 3；Concrete operating principle is：The linearly polarized light that light source assembly is formed passes through light splitting
Prism I 2, which turns back light path, is illuminated target, and the light of target surface is by orthogonal 9 complete attenuation of checking bias slice, in target
The light in face by scattering become partial poolarized light, with checking bias slice 9 non-orthogonal light can by enter Amici prism II 4, and
Through Amici prism II 4 imaging, Zhi Houtong are synchronized by reaching respective detector after optical filter I 5 and optical filter II 6 respectively
Display is crossed to be shown.
In the present embodiment, optical filter I 5 and optical filter II 6 are narrow band pass filter, and first corresponding to optical filter I 5 is specific
The wavelength of band of light is any one in 530-560nm, and the wavelength of the second specific band light corresponding to optical filter II 6 is
Any one in 600-640nm；In the present embodiment, the characteristic wave bands of the first specific band light are 550 ± 5nm, and second is special
The characteristic wave bands for determining band of light are 630 ± 5nm；Narrow band pass filter, which is mainly realized, makes choice system wave band, and optical filter can be into
Row is more preferable manually, the optical filter mounting bracket installation that each optical filter is detachably connected by one with the housing of spectrometer,
Optical filter is mounted on by trim ring in mounting bracket, when needing replacing optical filter, can be opened Instrument shell back shroud, be backed out
Optical filter fixing screws extract optical filter mounting bracket, unclamp trim ring, tighten trim ring after finishing changing optical filter, then pass through spiral shell again
Nail is installed on instrument.
In the present embodiment, light source assembly includes at least cold light source 10 and to become line inclined for cold light source 10 to be sent illumination light
Shake the polarizer slice 11 of light, and light source assembly is directly installed on Amici prism I 2；Optical spectrum imagers further include pedestal 26, light source assembly
It being respectively provided on base plate 26 with Amici prism I 2, light source assembly further includes collimation microscope group 12, and cold light source 10 sends a branch of diverging light,
Light is become into directional light by collimating microscope group, light is become by linearly polarized light by polarizer slice 11 afterwards；Through Amici prism I 2
The incident direction of the linearly polarized light of reflection and exit direction are perpendicular；Light source assembly is integrally disposed in the mounting base of Amici prism I 2
On, the two works respectively, and forms light source irradiation, and mounting means is the prior art, and details are not described herein, can realize this reality
With new required double spectrum channels；In addition, the search coverage scope of the object lens of the utility model is 100mm or so,
Detection analysis can be carried out at the same time to the region of a diameter of 100mm or so, in a short time, spatial resolution can reach millimeter
Grade.
In the present embodiment, checking bias slice 9 is arranged on image-forming objective lens 3 along imaging optical path path rear；Amici prism I 2 and light splitting
Prism II 4 is semi-transparent semi-reflecting prism；Checking bias slice 9 is arranged on by mounting bracket on the housing of spectrometer, and checking bias slice 9
Before image-forming objective lens 3 afterwards Amici prism II 4, the polarization state of checking bias slice 9 can be adjusted by external handwheel, effect is main
It is the reflected light that target epidermis is filtered out by adjusting polarization direction, through the scattering light of target internal.
In the present embodiment, housing 13 and the object lens mounting assembly being arranged on housing are further included, housing is mounted on pedestal,
Housing is support frame structure, and object lens mounting assembly includes being fixed on the supporting sleeve 14 of housing 13, opposite can be occurred by driving
The actuating sleeve 15 and determine with being placed on actuating sleeve 15 in screw thread and setting and be used for image-forming objective lens 3 that the mode of rotation coordinates with supporting sleeve 14
The fixed positioning sleeve 16 in position, and positioning sleeve 16 by be axially movable circumferencial direction it is fixed in a manner of in be placed on supporting sleeve 14 and set；
As shown in Fig. 2, being provided with supporting rack 17 in housing 13, supporting sleeve 14 is fixedly connected with supporting rack 17 by screw, supporting sleeve 14
The lower body 14-2 being threadedly coupled including upper sleeve body 14-1 and with upper sleeve body 14-1, the upper end of actuating sleeve 15 form radial flange
14-3 supports are arranged on lower body 14-2, and radial flange is located at the lower part ora terminalis of upper sleeve body 14-1 lower ends and lower body 14-2
On, it can be rotated but be not axially movable, positioning sleeve 16 relative to upper sleeve body 14-1 and lower body 14-2 when actuating sleeve 15 is rotated
It is threadedly coupled with actuating sleeve 15, and is sleeved in positioning sleeve 16 in upper sleeve body 14-1 and passes through spline structure and cooperatively form circumference and consolidated
Fixed, when actuating sleeve 15 is rotated, positioning sleeve 16 can form axial movement；The positioning supporting way adopted the structure can make
It is more accurate to obtain the focusing of image-forming objective lens 3, and supporting ＆ stablizing；In addition, checking bias slice, optical filter and detector are installed in housing
On, it is provided with to rotate the rotating disk of checking bias slice on housing；Housing is frame structure, and light source assembly and Amici prism I are installed
In pedestal, from base portion bottom, insertion is mounted in object lens mounting assembly objective lens unit.
In the present embodiment, further include that actuating sleeve 15 is driven to rotate so that positioning sleeve 16 is moved compared with supporting sleeve 14 is axial
The dynamic focusing drive component focused；Drive component of focusing includes and the 15 fixed driven wheel of differential of housing circumference of actuating sleeve
18th, the drive bevel gear 19 that is engaged with driven wheel of differential 18 in a manner that axis intersects vertically and consolidate with 19 circumference of drive bevel gear
Determine and stretch out the drive shaft 20 outside housing 13；Focusing drive component further includes axle sleeve 21, and axle sleeve is fixed on supporting rack 17,
Drive shaft 20 is passed through from axle sleeve, and drive bevel gear 19 and the inner end of drive shaft 20 are fixed, and 18 circumference housing of driven wheel of differential is fixed
On actuating sleeve 15.
In the present embodiment, positioning sleeve 16 includes the interior positioning sleeve body for being equipped with positioning chuck 16-1 and with positioning chuck 16-1
Coordinate the detent mechanism that image-forming objective lens 3 are formed with positioning locking, positioning can be caught in by being provided on the outside of the cylinder 3-1 of image-forming objective lens 3
The snap arm 25 of location fit is formed between chuck 16-1 and detent mechanism；Detent mechanism is spring-loaded plunger structure, including spring 23
With plunger 24, plunger is pressed in snap arm and forms positioning by spring, and the end of plunger forms ball head structure, when installation image-forming objective lens 3
When, it is stretched into image-forming objective lens 3 are bottom-up from 13 bottom of housing in housing 13, and 3 lower part of image-forming objective lens is provided with positioning work
Dress when being provided with position instruction annular groove on positioning tool, when indicating that annular groove is substantially aligned with light source seamed edge, rotates image-forming objective lens
3, snap arm is made, which to be caught between positioning chuck and detent mechanism, can form location and installation.
The outer end that housing 13 is stretched out in drive shaft 20 is provided with focusing handwheel 22, can be with when image definition deficiency
Focusing handwheel makes whole moved along optical axis of image-forming objective lens 3 focus clockwise or counterclockwise, until image clearly；
In addition, this optical spectrum imagers further includes vertical steering bracket, housing 13 is integrally provided on vertical steering bracket, and vertical steering bracket is to be connected into frame
Four supporting legs, the top of supporting leg is provided with height-regulating device, and height-regulating device is the swivel nut being threadedly coupled with supporting leg, swivel nut and spectrum
The bottom connection of imager.
The biological tissue's spectrum detected using the optical spectrum imagers with two waveband path channels of the utility model
Assay method, this method, which is based primarily upon oxyhemoglobin and deoxyhemoglobin, has different absorption spectrums, and utilization is this
Different spectral signatures can detect the variation of blood supply state or blood oxygen saturation in tissue, so as to biological tissue
Behaviour area (or functional areas) and non-active region distinguish, and this method comprises the following steps：
The region of interest that S1, calibration detected target needs detect；
S2, spectroscopic data is obtained in the case where not stimulating the quiescent condition of detected target and obtains the region of interest through processing
The spectrum baseline value Rr of interior each pixel；
S3, spectroscopic data is obtained in the case where stimulating the state of activation of detected target and is obtained through processing each in region of interest
The activation spectral value Ra of pixel；
S4, by region of interest under the activation spectral value Ra and quiescent condition of each pixel in region of interest under state of activation
The spectrum baseline value Rr of interior each pixel is compared, and calculates the difference Rd, Rd=Ra-R0 of each pixel；
S5, the difference Rd of each pixel is assigned to pseudo- coloured silk, reconstruction forms difference topographic map.
In the present embodiment, step S2 comprises the following steps：
S2-1, in the case where not stimulating the quiescent condition of detected target, it is same using the two waveband spectrum channel of different spectral values
When continuous acquisition spectroscopic data and pass through calibration point and check and approve per frame spectrum picture；
After S2-2, continuous acquisition spectrum picture and approval, the spectral value of each pixel of region of interest is extracted；
S2-3, the spectral value by the pixel of the spectrogram same position of the same time point acquisition of two waveband spectrum channel
Ratio is carried out, and the ratio continuous phase adduction at all time points of same position pixel is calculated into average value and draws the spectrum
Baseline value Rr；I.e. two waveband spectrum channel gathers a frame spectroscopic data photo at same time point respectively, which is obtained
The spectral value of the two spectroscopic data photos pixel that is located at same position point compared, it is double due to whithin a period of time
Band spectrum passage has gathered multiformat film respectively, and the spectral value of the pixel of the same position point at each time point is made to carry out phase
Than then the ratio continuous phase adduction that each pixel all time points obtain is averaged, and then obtains each identical bits
Put the spectrum baseline value of a pixel (following activation spectral values are measured using same method).
In the present embodiment, step S3 comprises the following steps：
Under stimulation state, repeat S2-1 to S2-3 steps, and the ratio in all time points most obtained at last
Continuous phase adduction calculates average value and draws the activation spectral value Ra；Specifically, step S3 includes：S3-1, using double light
Spectrum passage while continuous acquisition spectrum picture simultaneously pass through calibration point approval per frame picture；After S3-2, continuous acquisition picture and approval,
Extract the spectral value of each pixel of region of interest；The spectrogram identical bits of the same time point acquisition of S3-3, double spectrum channels
The spectral value for the pixel put carries out ratio, and the ratio continuous phase adduction in all time points of acquisition is calculated average value draws
Activate spectral value (Ra).
In the image processing method of the utility model, the two waveband of two waveband spectrum channel be respectively 550nm and
630nm is realized by the double light path passage of the cerebral function imaging instrument disclosed in the utility model, in step S2-1 and S3-1,
It determines that region of interest constantly marks scaling point around region of interest using matt label, then passes through 550nm and 630nm
Pass through scaling point using existing image processing software after two passages while continuous acquisition spectroscopic data to check and approve per frame picture, calibration
Point, which is checked and approved, to be referred to be tracked matt mark point in detection, and in the present embodiment, four mark points can be used in region of interest
Square configuration, when target acquisition object occur it is slight mobile can also carry out automatically correcting it is automatic point-to-point when realizing data processing
It checks and approves, to prevent not corresponding to for follow-up each pixel spectral value.
In step S2-3 and step S3-3, the spectrogram for two passage of 550nm and 630nm that the same time is gathered it is every
The spectral value of one pixel first carries out ratio, illustrates such as, R1=R630-1/R550-1；R2=R630-2/R550-2；R3
=R630-3/R550-3；... Rn=R630-n/R550-n, wherein 1,2,3 ... n represent the spectrum of different time points acquisition
Then the ratio that different time points are gathered is averaged by image data, obtain the spectrum base of region of interest under quiescent condition
Line value Rr, Rr=(R1+R2+R3 ...+Rn)/n.
Then by the spectrum baseline value Rr of region of interest under the spectral value Ra of region of interest under state of activation and quiescent condition
It is compared, calculates the difference Rd, Rd=Ra-R0 of each pixel；The difference Rd of each pixel is finally assigned to pseudo- coloured silk,
Reconstruction forms difference topographic map, orients some regions being activated in region of interest, and the size of difference Rd reflects that it activates journey
Degree.
By the image processing method, background interference is not only can remove, and can be by comparing the spectral differences before and after activating
It is different, some regions being activated of region of interest are oriented, and reach judge activation degree simultaneously, solve tranquillization in the prior art
It is smaller with the difference of oxygenation status in the biological tissues such as brain tissue under state of activation under state, the detection side of current spectral device
Method and image procossing mode cannot the problem of active region be accurately oriented of sensitivity.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, it will be understood by those of ordinary skill in the art that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover among the right of the utility model.
Claims (7)
1. a kind of optical spectrum imagers with two waveband path channels, it is characterised in that：Including：
Light source assembly, for forming linearly polarized light；
Amici prism I focuses on linearly polarized light reflection in biological tissue to be detected and to being returned from biological tissue to be detected
Light transmission；
The imaging system for imaging is further included, the imaging system includes：
Image-forming objective lens, for being returned from biological tissue to be detected and light through Amici prism I passes through and is imaged；
Amici prism II is arranged on image-forming objective lens rear for imaging optical path path to be divided into transmitted light path along imaging optical path path
Footpath and reflected light path；
Optical filter I, the transmitted light path of corresponding Amici prism II is set to be passed through for the first specific band light；
Optical filter II, the reflected light path of corresponding Amici prism II is set to be passed through for the second specific band light；
Imaging system further includes first band detector and the second band detection for corresponding that optical filter I and optical filter II are set
Device；
The optical spectrum imagers further include to remove the checking bias slice of non-targeted light in imaging optical path, the polarization side of the checking bias slice
It is adjustable to the polarization direction of the linearly polarized light formed with the light source assembly.
2. the optical spectrum imagers according to claim 1 with two waveband path channels, it is characterised in that：The optical filter
I and the optical filter II be narrow band pass filter, the wavelength of the first specific band light corresponding to the optical filter I is 530-
Any one in 560nm, the wavelength of the second specific band light corresponding to the optical filter II is arbitrary in 600-640nm
It is a kind of.
3. the optical spectrum imagers according to claim 1 with two waveband path channels, it is characterised in that：The light source group
Part includes at least cold light source and for cold light source to be sent the polarizer slice that illumination light becomes linearly polarized light, and the light source assembly is direct
On the Amici prism I, the incident direction and exit direction of the linearly polarized light reflected through Amici prism I are perpendicular.
4. the optical spectrum imagers according to claim 1 with two waveband path channels, it is characterised in that：The checking bias slice
The image-forming objective lens are arranged on along imaging optical path path rear；The Amici prism I and the Amici prism II are semi-transparent half
Anti- prism.
5. the optical spectrum imagers with two waveband path channels according to claim 1-4 any claims, feature
It is：Housing and the object lens mounting assembly being arranged on housing are further included, the object lens mounting assembly includes being fixed on housing
Supporting sleeve, in a manner of it can be relatively rotated by driving with supporting sleeve cooperation actuating sleeve and with being placed on the driving in screw thread
Set is set simultaneously positions fixed positioning sleeve for image-forming objective lens, and the positioning sleeve is to be axially movable the fixed side of circumferencial direction
Supporting sleeve setting is placed in formula.
6. the optical spectrum imagers according to claim 5 with two waveband path channels, it is characterised in that：It further includes and is used for
Driving actuating sleeve rotates so that the focusing drive component that positioning sleeve is focused compared with supporting sleeve axial movement, the focusing are driven
Dynamic component includes driven wheel of differential fixed with actuating sleeve housing circumference, is nibbled with driven wheel of differential in a manner that axis intersects vertically
It the drive bevel gear of conjunction and is fixed with drive bevel gear circumference and stretches out the drive shaft outside housing.
7. the optical spectrum imagers according to claim 6 with two waveband path channels, it is characterised in that：The positioning sleeve
Including the interior positioning sleeve body for being equipped with positioning chuck and with positioning chuck cooperation image-forming objective lens are formed with the localization machine of positioning locking
Structure, the cylinder outside of the image-forming objective lens are provided with the card that can be caught in and location fit is formed between positioning chuck and detent mechanism
Arm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901698A (en) * | 2017-04-14 | 2017-06-30 | 中国人民解放军第三军医大学第附属医院 | Two waveband optical spectrum imagers and its spectrometric method based on adjustable polarization |
| CN111983590A (en) * | 2020-08-21 | 2020-11-24 | 哈尔滨工业大学 | Dual-wavelength staring type imaging optical receiving system |
-
2017
- 2017-04-14 CN CN201720398179.XU patent/CN207412149U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106901698A (en) * | 2017-04-14 | 2017-06-30 | 中国人民解放军第三军医大学第附属医院 | Two waveband optical spectrum imagers and its spectrometric method based on adjustable polarization |
| CN106901698B (en) * | 2017-04-14 | 2023-07-11 | 中国人民解放军第三军医大学第一附属医院 | Dual-band spectrum imager based on adjustable polarization and spectrum measuring method thereof |
| CN111983590A (en) * | 2020-08-21 | 2020-11-24 | 哈尔滨工业大学 | Dual-wavelength staring type imaging optical receiving system |
| CN111983590B (en) * | 2020-08-21 | 2022-08-05 | 哈尔滨工业大学 | Dual-wavelength staring type imaging optical receiving system |
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