CN203059658U - Short-distance imaging device - Google Patents
Short-distance imaging device Download PDFInfo
- Publication number
- CN203059658U CN203059658U CN 201220652694 CN201220652694U CN203059658U CN 203059658 U CN203059658 U CN 203059658U CN 201220652694 CN201220652694 CN 201220652694 CN 201220652694 U CN201220652694 U CN 201220652694U CN 203059658 U CN203059658 U CN 203059658U
- Authority
- CN
- China
- Prior art keywords
- lens
- imaging device
- aperture layer
- layer
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Provided is a short-distance imaging device. The short-distance imaging device comprises a shell, a relay lens and an imaging unit. An irradiating unit and a signal receiving unit are arranged in the shell, wherein the irradiating unit comprises a shiner and an irradiating lens, the shiner and the irradiating lens are arranged relatively, the signal receiving unit comprises a sensor and a signal receiving lens, the sensor and the signal receiving lens are arranged relatively, the irradiating lens and the signal receiving lens are arranged on the same side of the relay lens, and the other side of the relay lens is towards the outer portion of the shell. The imaging unit is connected with the sensor, the imaging unit is used for outputting image information of detection items, a coding aperture layer is arranged between the sensor and the signal receiving lens, wherein the coding aperture layer is provided with a plurality of through holes, and the coding aperture layer can enable the sensor and the signal receiving lens to form images in a coding aperture mode. According to the short-distance imaging device, information of a plurality of images can be acquired through one-time exposure, sampling time of image information is reduced, imaging speed is increased, and therefore fast imaging of living organisms in a natural state can be timely realized.
Description
Technical field
This utility model relates to a kind of imaging device, particularly a kind of medical closely imaging device.
Background technology
Micro-medical imaging is with a long history, is to detect, observe, measure human organ to organize indispensable instrument.These image-forming informations are of value to medical diagnosis and treatment.Conventional microscope needs sampling, and is fixing, dehydration, and processes such as section are come the long time treatment sample.Therefore, Real Time Observation biological tissue and cellularity have a great attraction to medical circle.In recent years, weak coherent light tomoscan (OCT) imaging utilizes coherent light, for example comes the transdermal imaging of tissue with iraser and Michelson principle of interference.The image that obtains by this method is the depth plane.Another kind method, Laser Scanning Confocal Microscope utilizes identical light path, the optical signal that sends in illumination and the reception biological tissue, final imaging is transverse plane image in the biological tissue.Therefore a point-like light specific target sample that is used for throwing light on can eliminate conventional microscope strain light and other side effect.Device as OCT and Laser Scanning Confocal Microscope is relatively heavier usually, and limits single wavelength such as laser as light source.
But optical signal sends and receives all is by beam splitter, and this structure is not suitable for use in the microstructure of medical treatment or other application usually, because beam splitter needs the right angle to constitute usually, it is bigger to cause taking up room.Wherein beam splitter makes the light signal that reflects to shine towards the sample direction, arrive optical sensor from the penetrable beam splitter of the optical signal of sample, but beam splitter is normally effective at specific wavelength, and the result is that this device is only to work under single or a few wavelength situation.
In order to address the above problem, a kind of closely imaging device that uses relay lens has appearred; Adopt relay lens instead of optical beam separator, still realized the correct transmission of optical signal, and relay lens is effective to multi-wavelength's optical signal, make this utility model can be applicable to multiple working condition; In addition, behind the employing relay lens, illumination unit and signal receiving unit need not rectangular layout, make that the structure of equipment can be littler, compacter, more can be applicable to armarium or other micromodule equipments.
But the image taking speed of this closely imaging device is still slower, single exposure can only obtain an image information, if will obtain the image information that detects thing integral body, must repeatedly sample, the time that causes obtaining the image information cost is more, thereby has influenced image taking speed.
The utility model content
This utility model purpose is to provide a kind of closely imaging device, this device single exposure can obtain a plurality of image informations, with the sampling time of minimizing image information, thereby improve image taking speed greatly, can reach instant to the biological tissue fast imaging under the naturalness.
Above-mentioned closely imaging device, comprise shell, relay lens and image-generating unit, be provided with illumination unit and signal receiving unit in the shell, illumination unit comprises luminous body and irradiation lens, luminous body is oppositely arranged with the irradiation lens, signal receiving unit comprises sensor and signal receiver lens, and sensor and signal receiver lens are oppositely arranged; Described irradiation lens and signal receiver lens place the same side of relay lens, and the relay lens opposite side is outside shell; Described image-generating unit is connected with sensor, image-generating unit is used for the image information that output detects thing, be provided with the code aperture layer between described sensor and the signal receiver lens, the code aperture layer has a plurality of through holes, and the code aperture layer makes sensor and signal receiver lens carry out imaging in the code aperture mode.
In background technology, mentioned a kind of closely imaging device that uses relay lens, this imaging device single exposure can only obtain an image information, if will obtain the image information that detects thing integral body, must repeatedly sample, the time that causes obtaining the image information cost is more, thereby has influenced image taking speed.
And this utility model adopts the code aperture mode to carry out imaging, and each through hole on the layer of code aperture is gathered an image information, owing to have a plurality of through holes on the layer of code aperture, just can gather a plurality of image informations so carry out single exposure; For example, adopt two through hole images acquired information, namely single exposure just obtains 2 image informations, makes image taking speed speed 2 times, and when adopting N through hole images acquired information, namely single exposure just obtains N image information, makes image taking speed speed N doubly.
The more important thing is that existing imaging technique speed is slow excessively, will bring a large amount of recessive crises for patient; Because prior art needs sampling, fixing, dyeing, dehydration, processes such as section are come the long time treatment sample, so can not be to the check of sampling of a plurality of positions, if only gathered healthy cell, and when failing to collect sick cell, following situation will occur: survey report shows that patient is in the pink of condition, but sick cell still is present in human body, and the result will cause patient to miss treatment opportunity.
Obviously; the technical scheme that this utility model provides makes image taking speed obtain qualitative leap; can reach immediately to the live body under the naturalness sample, imaging; so just can obtain the image information that each detects the position at short notice; solve the recessive crisis that prior art exists; ensured patient's health, for medical domain brings major contribution.
Preferably, be provided with focus layer between described sensor and the code aperture layer, focus layer will focus to sensor through the reflected light of code aperture layer.
Because not all reflected light all can arrive the effective coverage of sensor, this will cause a large amount of effective informations to run off; In order to address this problem, this utility model is provided with focus layer, makes reflected light can focus to the effective coverage of sensor as far as possible, has reduced the loss of information, has improved the efficient of imaging.
Preferably, described focus layer is formed by a plurality of lens arrangement, and the one or more through holes on the layer of code aperture are corresponding with lens.
Preferably, but the through hole of described code aperture layer is opening and closing structure.
Because but the through hole of code aperture layer is opening and closing structure, if the switching time of control through hole, the time of exposure in the time of just controlling images acquired information simply.
Preferably, the through hole of described code aperture layer is strip, a plurality of through holes in the horizontal direction or vertical direction be arranged in parallel;
Or described code aperture layer is shown through hole with the equal parallel of vertical direction in the horizontal direction; When closely imaging device was worked, the through hole of horizontal direction and vertical direction was alternately opened.
The through hole that horizontal direction or vertical direction are set is in order to remove veiling glare, and the through hole of horizontal direction is used for removing the veiling glare of vertical direction, and the through hole of vertical direction is used for removing the veiling glare of horizontal direction, and the accuracy of imaging is improved.
By alternately opening the through hole of horizontal direction and vertical direction, just can remove the veiling glare of vertical direction and horizontal direction successively, the accuracy of imaging is improved.
Preferably, described code aperture layer comprises a horizontal aperture layer and a vertical aperture layer at least, and horizontal aperture layer and vertical aperture layer are alternately arranged;
The through hole of described horizontal aperture layer is strip, and a plurality of through holes are arranged in parallel in the horizontal direction;
The through hole of described vertical aperture layer is strip, and a plurality of through holes are arranged in parallel in the vertical direction.
In like manner, the through hole of horizontal direction is used for removing the veiling glare of vertical direction, and the through hole of vertical direction is used for removing the veiling glare of horizontal direction, and the through hole of horizontal direction and vertical direction is set simultaneously, make that the veiling glare of horizontal direction and vertical direction is removed, thereby improved the accuracy of imaging.
Preferably, the through hole of described horizontal aperture layer and vertical aperture layer is opened simultaneously.
Because the through hole of horizontal aperture layer and vertical aperture layer is opened simultaneously, makes the veiling glare of horizontal direction and vertical direction to remove simultaneously, improved the efficient of removing veiling glare.
Preferably, the through hole on the layer of described code aperture is matrix and arranges.
Preferably, described code aperture layer is LCD or mechanical layer of pinholes, and when described code aperture layer was the LCD of control able to programme, LCD was by size, direction, density and the switching of programming Control through hole.
Preferably, described irradiation lens, signal receiver lens are arranged with the detection faces conjugation that detects thing.
Because irradiation lens, signal receiver lens arrange with the detection faces conjugation that detects thing, make the image information of acquisition meet the principle of conjugate imaging, the computing when making things convenient for image information output.
Preferably, described irradiation lens and signal receiver lens are arranged side by side;
Or described irradiation lens and signal receiver lens are arranged around the same side of relay lens;
Above-mentioned irradiation lens are made of single lenticular body, or are arranged side by side by a plurality of lenticular bodies and form; Above-mentioned signal receiver lens is made of single lenticular body, or is arranged side by side by a plurality of lenticular bodies and forms.
Preferably, described luminous body is the luminous body of irradiates light wavelength-tunable.
Because the irradiates light wavelength-tunable that luminous body sends makes that closely imaging device can be regulated the irradiation light wavelength according to detecting thing, to obtain to detect the image information of thing more accurately.
Preferably, described luminous body comprises LCD and backlight, and LCD one side is relative with the irradiation lens, and opposite side is relative with backlight.
Preferably, described LCD is provided with a plurality of through holes to be opened/closed.
Because but the through hole of LCD is opening and closing structure, if the switching time of control through hole, the time of exposure in the time of just controlling images acquired information simply.
Preferably, described luminous body comprises backlight and has a plurality of mechanical layer of pinholes that open and close through hole, and mechanical layer of pinholes one side is with to shine lens relative, and opposite side is relative with backlight.
When need not to regulate the irradiates light wavelength, can adopt mechanical layer of pinholes to substitute LCD, the time of exposure when controlling images acquired information.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of this utility model;
Fig. 2 is this utility model operation principle sketch map;
Fig. 3 is the structural representation of the horizontal aperture layer of this utility model;
Fig. 4 is the structural representation of this utility model vertical aperture layer;
Fig. 5 is the structural representation of this utility model code aperture layer;
Fig. 6 is the operation principle sketch map one of this utility model signal receiving unit;
Fig. 7 is the operation principle sketch map two of this utility model signal receiving unit;
Fig. 8 is the structural representation of second kind of embodiment of this utility model.
The specific embodiment
First kind of embodiment of the present utility model as shown in Figure 1, comprise shell and image-generating unit, shell is waterproof construction, be provided with illumination unit, signal receiving unit and relay lens 10 in the shell, illumination unit and signal receiving unit are arranged side by side, and relay lens 10 1 sides are relative with illumination unit and signal receiving unit, and the relay lens opposite side is outside shell, make illumination unit, 10 one-tenth conjugation of signal receiving unit and relay lens arrange, and relay lens 10 surfaces also are coated with anti-reflective film 11; Described image-generating unit is connected with signal receiving unit, and image-generating unit is used for the image information that output detects thing.
As illustrated in fig. 1 and 2, described illumination unit comprises LED22, collimator 60, LCD21 and irradiation lens 20, in the enclosure, arranges according to LED22, collimator 60, LCD21, irradiation lens 20 to the mode of relay lens 10; Wherein, the LCD20 in the illumination unit is the LCD of control able to programme, has a plurality of through holes to be opened/closed on the LCD20, and irradiation lens 20 are made of single lenticular body, or is arranged side by side by a plurality of lenticular bodies and forms.
As illustrated in fig. 1 and 2, described signal receiving unit comprises sensor 31, focus layer, LCD40 and signal receiver lens 30, in the enclosure, arranges according to sensor 31, focus layer, LCD40, signal receiver lens 30 to the mode of relay lens 10; Wherein, focus layer is arranged by a plurality of lens 50 and is formed; Shown in Fig. 3 and 4, the LCD40 of signal receiving unit comprises horizontal aperture layer 41 and vertical aperture layer 42, and the through hole on the horizontal aperture layer 41 is strip, and this through hole is arranged in parallel in the vertical direction; Through hole on the vertical aperture layer 42 is strip, and this through hole is arranged in parallel in the horizontal direction; Because horizontal aperture layer 41 arranges that with 42 stack of vertical aperture layer make that both through holes are orthogonal, the through hole on horizontal aperture layer 41 and the vertical aperture layer 42 is divided into some groups, every group of through hole and lens 50 positioned opposite; In addition, signal receiver lens 30 is made of single lenticular body, or is arranged side by side by a plurality of lenticular bodies and forms.
Shown in Fig. 2,6 and 7, when closely imaging device of the present utility model is worked, LED22 sends irradiates light as backlight, irradiates light is through penetrating (the irradiation light wavelength is regulated by LCD21) behind the LCD21, irradiates light after regulating is delivered to irradiation lens 20, irradiation lens 20 are delivered to relay lens 10 with irradiates light, and relay lens 10 is delivered to the detection thing with irradiates light; Detecting thing reflects irradiates light, reflected light is delivered to signal receiver lens 30 through relay lens 10, reflected light passes signal receiver lens 30 and removes veiling glare by horizontal aperture layer 41 and vertical aperture layer 42, reflected light behind the removal veiling glare lens 50 of line focus layer again focuses on, make reflected light can focus on the effective coverage of sensor 31, sensor 31 is delivered to image-generating unit with the image information that receives, and image-generating unit detects the image information of thing according to the information output that receives; In above-mentioned work process, because optical signal is through producing reflection behind the relay lens 10, thereby influence the closely accuracy of imaging device acquisition testing object image information, so on relay lens 10 surfaces anti-reflective film 11 is set, reduce the direct reflection of optical signal, thereby improved the closely accuracy of imaging device acquisition testing object image information.
In order further to improve the closely accuracy of imaging device images acquired information, should send the irradiation light wavelength and detect optocoupler coefficient between the thing and select the immersion liquid that is complementary according to imaging device closely, and with immersion liquid submergence detection thing, repeat the image information that above-mentioned steps just can obtain to detect thing exactly again; Again because the duty of control LCD21 can be regulated the irradiation light wavelength, make that closely imaging device can be regulated the irradiation light wavelength according to detecting thing, to obtain detecting the image information of thing (when equipment need not to arrange the adjustable function of irradiates light more accurately, also can select monochromatic LED, multi-colored led, ultrared ray generator, ultraviolet light generator or laser generator etc. to replace, directly to send irradiates light).
Second kind of embodiment of the present utility model as shown in Figure 7, its structure and using method and first kind of embodiment of the present utility model are basic identical, its difference is: signal receiver lens 30 is not to be arranged side by side with irradiation lens 20, both arrange around the back side of relay lens 10, make signal receiver lens 30 and the arrangement of irradiation lens 20 be splayed.
In addition, the code aperture layer of above-mentioned two kinds of embodiment also can other structures replace, and shows through hole with the equal parallel of vertical direction in the horizontal direction as LCD40, and when closely imaging device was worked, the through hole of horizontal direction and vertical direction was alternately opened; The LCD40 of above-mentioned two kinds of embodiment structure all right shown in Figure 5 replaces, and namely the through hole on the LCD40 is the matrix arrangement.
The improved protection domain that also is considered as patent on the basis of above embodiment.
Claims (15)
1. imaging device closely, comprise shell, relay lens and image-generating unit, be provided with illumination unit and signal receiving unit in the shell, illumination unit comprises luminous body and irradiation lens, luminous body is oppositely arranged with the irradiation lens, signal receiving unit comprises sensor and signal receiver lens, and sensor and signal receiver lens are oppositely arranged; Described irradiation lens and signal receiver lens place the same side of relay lens, and the relay lens opposite side is outside shell; Described image-generating unit is connected with sensor, image-generating unit is used for the image information that output detects thing, it is characterized in that: be provided with the code aperture layer between described sensor and the signal receiver lens, the code aperture layer has a plurality of through holes, and the code aperture layer makes sensor and signal receiver lens carry out imaging in the code aperture mode.
2. closely imaging device according to claim 1, it is characterized in that: be provided with focus layer between described sensor and the code aperture layer, focus layer will focus to sensor through the reflected light of code aperture layer.
3. closely imaging device according to claim 2, it is characterized in that: described focus layer is formed by a plurality of lens arrangement, and the one or more through holes on the layer of code aperture are corresponding with lens.
4. closely imaging device according to claim 1 is characterized in that: but the through hole of described code aperture layer is opening and closing structure.
5. closely imaging device according to claim 4, it is characterized in that: the through hole of described code aperture layer is strip, a plurality of through holes in the horizontal direction or vertical direction be arranged in parallel;
Or described code aperture layer is shown through hole with the equal parallel of vertical direction in the horizontal direction; When closely imaging device was worked, the through hole of horizontal direction and vertical direction was alternately opened.
6. closely imaging device according to claim 4, it is characterized in that: described code aperture layer comprises a horizontal aperture layer and a vertical aperture layer at least, horizontal aperture layer and vertical aperture layer are alternately arranged;
The through hole of described horizontal aperture layer is strip, and a plurality of through holes are arranged in parallel in the horizontal direction;
The through hole of described vertical aperture layer is strip, and a plurality of through holes are arranged in parallel in the vertical direction.
7. closely imaging device according to claim 6, it is characterized in that: the through hole of described horizontal aperture layer and vertical aperture layer is opened simultaneously.
8. closely imaging device according to claim 4 is characterized in that: the through hole on the layer of described code aperture is matrix and arranges.
9. according to each described closely imaging device of claim 4 to 8, it is characterized in that: described code aperture layer is LCD or mechanical layer of pinholes.
10. closely imaging device according to claim 1 is characterized in that: the detection faces conjugation layout of described irradiation lens, signal receiver lens and detection thing.
11. closely imaging device according to claim 10 is characterized in that: described irradiation lens and signal receiver lens are arranged side by side;
Perhaps, described irradiation lens and signal receiver lens are arranged around the same side of relay lens;
Above-mentioned irradiation lens are made of single lenticular body, or are arranged side by side by a plurality of lenticular bodies and form; Above-mentioned signal receiver lens is made of single lenticular body, or is arranged side by side by a plurality of lenticular bodies and forms.
12. closely imaging device according to claim 1 is characterized in that: described luminous body is the luminous body of irradiates light wavelength-tunable.
13. closely imaging device according to claim 12 is characterized in that: described luminous body comprises LCD and backlight, LCD one side is relative with the irradiation lens, and opposite side is relative with backlight.
14. closely imaging device according to claim 13 is characterized in that: described LCD is provided with a plurality of through holes to be opened/closed.
15. closely imaging device according to claim 1 is characterized in that: described luminous body comprises backlight and has a plurality of mechanical layer of pinholes that open and close through hole, and mechanical layer of pinholes one side is with to shine lens relative, and opposite side is relative with backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652694 CN203059658U (en) | 2012-11-30 | 2012-11-30 | Short-distance imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652694 CN203059658U (en) | 2012-11-30 | 2012-11-30 | Short-distance imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203059658U true CN203059658U (en) | 2013-07-17 |
Family
ID=48758490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652694 Withdrawn - After Issue CN203059658U (en) | 2012-11-30 | 2012-11-30 | Short-distance imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203059658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973245A (en) * | 2012-11-30 | 2013-03-20 | 广州市盛光微电子有限公司 | Short-range imaging device |
-
2012
- 2012-11-30 CN CN 201220652694 patent/CN203059658U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102973245A (en) * | 2012-11-30 | 2013-03-20 | 广州市盛光微电子有限公司 | Short-range imaging device |
| CN102973245B (en) * | 2012-11-30 | 2014-08-06 | 广州市盛光微电子有限公司 | Short-range imaging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090091566A1 (en) | System and methods for thick specimen imaging using a microscope based tissue sectioning device | |
| Wangpraseurt et al. | In vivo imaging of coral tissue and skeleton with optical coherence tomography | |
| WO2015109323A9 (en) | Systems and methods for three-dimensional imaging | |
| CN102389288B (en) | Confocal laser micro-endoscope | |
| CN108169173A (en) | A kind of big visual field high-resolution three dimensional diffraction chromatography micro imaging method | |
| WO2013010595A1 (en) | An object database and object database improving method | |
| AU2016232975C1 (en) | Method and apparatus for microscopy | |
| CN102973245B (en) | Short-range imaging device | |
| CN203059658U (en) | Short-distance imaging device | |
| TWI554740B (en) | Optical system for fast three-dimensional imaging | |
| Tang et al. | Local axis orientation mapped by polarization sensitive optical coherence tomography provides a unique contrast to identify caries lesions in enamel | |
| JP2008089521A5 (en) | ||
| CN202191264U (en) | Endoscope | |
| EP3460585B1 (en) | An imaging device for in-line holographic imaging of an object | |
| Ngo et al. | Label‐free cleared tissue microscopy and machine learning for 3D histopathology of biomaterial implants | |
| CN202908679U (en) | Close range imaging device | |
| Tang et al. | Deep learning reduces data requirements and allows real-time measurements in imaging FCS | |
| Weber et al. | High-speed, multi-z confocal microscopy for voltage imaging in densely labeled neuronal populations | |
| CN102920437B (en) | Close-distance imaging device and using method thereof | |
| CN111317462A (en) | Blood flow imaging method and device based on U-net neural network | |
| CN100516841C (en) | Method for producing light field or wide field fluorescence light section | |
| KR101669411B1 (en) | System and Method For Fabrication Skin and Teeth Analyzer | |
| CN103837509A (en) | Time difference type light source apparatus for fluorescence detection, image capture system and capture method | |
| KR102579826B1 (en) | Method, apparatus and system for providing medical diagnosis assistance information based on artificial intelligence | |
| US20240126058A1 (en) | Methods and apparatus for high-resolution microscopy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |