CN217901020U - Auto-focusing push-broom hyperspectral imager based on spectroscope - Google Patents
Auto-focusing push-broom hyperspectral imager based on spectroscope Download PDFInfo
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- CN217901020U CN217901020U CN202221543492.5U CN202221543492U CN217901020U CN 217901020 U CN217901020 U CN 217901020U CN 202221543492 U CN202221543492 U CN 202221543492U CN 217901020 U CN217901020 U CN 217901020U
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Abstract
The utility model relates to a high spectral imaging technical field, concretely relates to auto focus pushes away formula high spectral imaging appearance of sweeping based on spectroscope. Including base, camera lens, spectroscope, viewing device, spectrum appearance and total control module, camera lens, spectroscope, viewing device and spectrum appearance all set up on the base, and the spectrum appearance passes through optics slip table and base sliding connection, and spectrum appearance, optics slip table, viewing device and camera lens are controlled by total control module. The utility model discloses a with the mode of camera lens beam split, can realize finding a view the formation of image, acquire simultaneously with spectral data, adjust same focal plane through finding a view biography ware and spectrum appearance, find a view the biography ware and focus the module through control and carry out the back of focusing, can accomplish the spectrum appearance in step and focus, make the spectrum appearance focus better convenient and fast high-efficient.
Description
Technical Field
The utility model relates to a high spectral imaging technical field, concretely relates to auto focus pushes away formula high spectral imaging appearance of sweeping based on spectroscope.
Background
The hyperspectral imaging technology can simultaneously acquire image information and spectral information, and can perform spectral analysis depending on spectra while distinguishing objects by combining the machine vision technology, so that the hyperspectral imaging technology is a new technology with great potential. The spectral analysis capability of the hyperspectral imaging technology comes from the fact that hyperspectrum can collect spectral information emitted by substances under different wavelengths, and the spectral information directly reflects information such as physical and chemical components of an object; the hyperspectral imaging technology can realize the full automation of target detection, component judgment and result output by combining the information of image identification, region selection and the like.
The spectrometer can obtain spatial distribution information of ground objects and can synchronously obtain spectral information of the ground objects for analyzing material components, and plays an important role in the fields of agricultural pest detection, forestry tree species identification, material analysis, garbage sorting, water body index inversion, water environment detection and the like. Most of the existing mainstream spectrometer imaging systems are of a push-broom type, that is, spatial information and spectral information of one line of a spatial dimension are acquired by single photographing, so that a push-broom mechanism is required to realize global imaging. The traditional hyperspectral imager utilizes a translation mechanism to drive a measured object to move relative to a hyperspectral camera to realize push-scanning, single imaging cannot acquire two-dimensional space information, and cannot judge whether focusing is accurate, the process of focusing at each time needs to continuously push-scan a spectrograph or push-scan the measured object, the focusing accuracy is low, and the time consumption is long. On the other hand, due to the characteristics of line imaging of the spectrometer, the scanning range is not visual, the scanning area cannot be visually identified, a user cannot acquire the spectral data of the target area at one time, the scanning range can be determined only after one-time complete imaging is performed, even the spectral data of the target area can be acquired only by repeated imaging tests, and the operation efficiency is low.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the prior art, the utility model aims to utilize the characteristic of framing sensor picture type imaging through a light splitting mode; focusing is completed by skillfully utilizing the view finding sensor due to the characteristic of a confocal surface of the view finding sensor and the spectrometer, and push-scanning imaging of the spectrometer is realized through a built-in optical sliding table; and simultaneously, marking the imaging range of the spectrometer by using the frame of the framing sensor to realize the visible and acquired results.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an auto focus pushes away formula high spectral imaging appearance of sweeping based on spectroscope, includes base, camera lens, spectroscope, camera device, spectrum appearance and total control module, the camera lens the spectroscope the camera device with the spectrum appearance all set up the base on, the light that receives of camera lens see through the spectroscope take place light A after the transmission by the spectrum appearance receive, the light that receives of camera lens pass through the spectroscope take place light B after the reflection by the camera device receive, the spectrum appearance pass through optical sliding table with base sliding connection, the spectrum appearance optical sliding table the camera device with the camera lens by total control module control. The spectroscope is arranged behind the lens and forms a 45-degree angle relation with the central optical axis of the lens; the distance from the light reflected by the beam splitter to the focal plane of the viewing device is equal to the distance from the light transmitted by the lens through the beam splitter to the focal plane of the spectrometer, so as to ensure the confocal plane of the viewing sensor and the spectrometer; part of light rays passing through the lens are reflected to the framing sensor through the spectroscope for imaging, and the other part of light rays directly pass through the spectroscope to reach the spectrometer and are finally converted into spectral data. The acquisition adopts a mode of light splitting with the same lens, so that framing imaging can be realized, spectrum data can be acquired simultaneously, the framing transmission device and the spectrometer are mainly adjusted to the same focal plane, and focusing of the spectrometer can be completed synchronously after focusing is performed by controlling the framing transmission device and the focusing module, so that focusing of the spectrometer is better, convenient, rapid and efficient, and focusing at any point can be realized on a framing picture; meanwhile, the data acquisition area can be selected according to the view-finding picture, and the spectrometer is driven to acquire and acquire spectral data by controlling the movement of the optical sliding table.
Optionally, total control module include data acquisition controlling means, camera lens controlling means and slip table drive control device, the spectrum appearance with data acquisition controlling means electricity connect, slip table drive control device control optics slip table, data acquisition controlling means with slip table drive control device electricity connect, camera lens controlling means control the focus of camera lens with the light ring of camera lens, data acquisition controlling means with camera lens controlling means electricity connect.
Optionally, a shutter is further disposed between the spectroscope and the spectrometer. The shutter adopts an electronic shutter, and the introduction of the electronic shutter aims to acquire instrument dark background data when data are acquired every time, so that more reliable and more effective data are provided for later data analysis and processing.
Optionally, a distance measuring sensor is further disposed on the substrate, and the distance measuring sensor is electrically connected with the data acquisition control device. The installation requirement of the distance measuring sensor is parallel to the central optical axis of the lens, and the distance measuring sensor is mainly used for distance measurement and view finding position indication.
Optionally, the sliding direction of the optical sliding table is perpendicular to the propagation direction of the light ray a.
Optionally, the total control module further includes a touch control screen for feeding back focusing conditions and push-broom imaging conditions of the lens and controlling and adjusting related parameters of the spectrometer. Focusing at any point can be realized on a view-finding picture; meanwhile, the data acquisition area can be selected according to the real-time view-finding picture displayed on the touch control screen, and the spectrometer is driven to acquire and acquire spectral data by controlling the movement of the optical sliding table.
The utility model discloses the beneficial technological effect who possesses is: the focusing of the spectrograph can be completed synchronously by adjusting the viewfinder and the spectrograph to the same focal plane and controlling the viewfinder and the focusing module to focus, so that the focusing of the spectrograph is better, convenient, rapid and efficient, and the focusing at any point can be realized on a viewfinder picture; meanwhile, the data acquisition area can be selected according to the view-finding picture, and the spectrometer is driven to acquire and acquire spectral data by controlling the movement of the optical sliding table.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the connection structure of the components of the present invention;
fig. 3 is a schematic structural diagram of the groove of the housing of the present invention.
Reference numerals: the system comprises a base 1, a lens 2, a 3-spectroscope, a 4-view finder, a 5-spectrograph, a 6-touch control screen, a 7-distance measuring sensor, an 8-electronic shutter, a 9-data acquisition control device, a 10-lens control device, a 11-sliding table driving control device, a 12-shell, a 13-inclined plane, a 14-groove, a 15-U-shaped recess, a 16-arc-shaped inclined plane, a 17-V-shaped recess, an 18-data interface and a 19-data connector.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-3, an automatic focusing push-broom hyperspectral imager based on a spectroscope 3 comprises a base 1, a lens 2, the spectroscope 3, a view finder 4, a spectrometer 5, a distance measurement sensor 7, an electronic shutter 8 and a master control module.
The spectrometer 5 complete machine consists of a complex light splitting module and an optical signal receiving sensor. The light signal entrance of the light splitting module is a slit which is a tiny light transmission slit with the width of micrometer order. The optical signals are dispersed into different wavelengths by optical dispersion and are sequentially arranged on the optical signal receiving sensor in the order of wavelength. The optical signal is converted into a digital signal by the optical signal receiving sensor.
The master control module comprises a data acquisition control device 9, a lens control device 10, a sliding table driving control device 11 and a touch control screen 6 which is used for feeding back focusing conditions and push-broom imaging conditions of the lens 2 and controlling and adjusting related parameters of the spectrometer 5. Focusing at any point can be realized on a view-finding picture; meanwhile, the data acquisition area can be selected according to a framing picture on the touch control screen 6 in a time-limited mode, and the spectrometer 5 is driven to acquire and acquire spectral data by controlling the movement of the optical sliding table. The spectrometer 5 is electrically connected with the data acquisition control device 9, the sliding table driving control device 11 controls the optical sliding table, the data acquisition control device 9 is electrically connected with the sliding table driving control device 11, the lens control device 10 controls the focal length of the lens 2 and the aperture of the lens 2, and the data acquisition control device 9 is electrically connected with the lens control device 10.
The base 1 is provided with a shell 12, the shell 12 is matched with the base 1 to wrap a lens 2, a spectroscope 3, a view finding device 4, a spectrometer 5, a touch control screen 6, a distance measuring sensor 7, an electronic shutter 8 and a master control module, and the inside of the shell is provided with a sealed lightproof space. The side of the housing 12 is provided with a view port for viewing a view and a distance measurement port for measuring a distance. The lens 2 receives external light through a viewing port and guides the light into the device.
The housing 12 is provided with a 45-degree inclined plane 13, and the inclined plane 13 is specially provided with a groove 14 for mounting the touch control screen 6. The upper end of the groove 14 is provided with a U-shaped recess 15, and the bottom of the groove is provided with a data line interface connected with the data acquisition control device 9. The lower end of the groove 14 is provided with an arc inclined plane 1613 which is convenient for a human hand to take the touch control screen 6, and a V-shaped recess 17. The front surface of the touch control screen 6 is a touch control panel, the lower end of the back surface of the touch control screen is provided with a bulge matched with the V-shaped recess 17, the upper end of the touch control screen is provided with a data connecting line extending out and a data connector 19 connected to the tail end of the data connecting line, and the data connector 19 is matched with the data interface 18. When the touch control screen 6 is in a fixed state, the protrusion at the lower end of the back surface of the touch control screen is clamped in the V-shaped recess 17, the data connector 19 of the touch control screen is inserted into the data interface 18, and the data connecting line of the touch control screen is folded and positioned in the U-shaped recess 15. This kind of design makes touch control screen 6 possess has splendid flexibility, can select to place this device in the position of can cunning more and lift touch control screen 6 off alone and carry out wired operation when high spectrum formation of image, and data transmission is difficult for receiving the interference more, and operating personnel can operate touch control screen 6 and needn't see the condition of this device body.
When the instrument is in operation, the control software is started firstly, the software can complete self-checking and complete hardware initialization related work, so that the hardware enters a ready state; by clicking a focusing menu button on the touch control screen 6, a program integrates image information and distance measurement information to adjust the focal length of the lens 2, the image definition is evaluated after the focal length is adjusted every time, the image definition is in the optimal state by continuously adjusting the focal length of the lens 2, so that automatic focusing is completed, and the change of the image definition in the whole focusing process can be displayed in real time in software. After the automatic focusing is finished, the scanning range of the spectrograph 5 can be selected through a framing camera picture on the touch control screen 6, and the push-broom imaging is finished by driving the spectrograph 5 to move through the optical sliding table; when push-scan imaging is started, the software automatically closes the shutter to prevent light from entering the system, dark background data acquisition is completed, and the shutter is opened to acquire spectral data after the dark background data acquisition is completed. The user of the instrument can see a real-time viewing picture, real-time imaging spectrum related data, distance measuring information and the like on the control software; and relevant parameters such as focal length, aperture, spectrometer 5 and the like, and relevant operations such as data acquisition and storage can be adjusted in software.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides an auto focus pushes away formula hyperspectral imager of sweeping based on spectroscope which characterized in that: including base, camera lens, spectroscope, viewing device, spectrum appearance and total control module, the camera lens the spectroscope viewing device with the spectrum appearance all set up the base on, the light that the camera lens received the light permeate through the spectroscope take place the light A after the transmission by the spectrum appearance receive, the light that the camera lens received pass through the spectroscope take place the light B after the reflection by viewing device receive, the spectrum appearance pass through optical sliding table with base sliding connection, the spectrum appearance optical sliding table the viewing device with the camera lens by total control module control.
2. A spectroscope-based autofocus push-broom hyperspectral imager as claimed in claim 1 wherein: the total control module include data acquisition controlling means, camera lens controlling means and slip table drive control device, the spectrum appearance with data acquisition controlling means electricity connect, slip table drive control device control optics slip table, data acquisition controlling means with slip table drive control device electricity connect, camera lens controlling means control the focus of camera lens with the light ring of camera lens, data acquisition controlling means with camera lens controlling means electricity connect.
3. The auto-focusing push-broom hyperspectral imager based on the spectroscope of claim 2, wherein: a shutter is arranged between the spectroscope and the spectrometer.
4. A spectroscope-based auto-focusing push-broom hyperspectral imager in accordance with claim 3 wherein: the base on still be provided with range finding sensor, range finding sensor with data acquisition controlling means electricity connect.
5. A spectroscope-based autofocus push-broom hyperspectral imager according to any of claims 1-4, wherein: the sliding direction of the optical sliding table is perpendicular to the propagation direction of the light ray A.
6. A spectroscope-based autofocus push-broom hyperspectral imager as claimed in claim 5, wherein: the master control module also comprises a touch control screen which is used for feeding back the focusing condition and the push-broom imaging condition of the lens and controlling and adjusting the related parameters of the spectrograph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221543492.5U CN217901020U (en) | 2022-06-20 | 2022-06-20 | Auto-focusing push-broom hyperspectral imager based on spectroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221543492.5U CN217901020U (en) | 2022-06-20 | 2022-06-20 | Auto-focusing push-broom hyperspectral imager based on spectroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217901020U true CN217901020U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221543492.5U Active CN217901020U (en) | 2022-06-20 | 2022-06-20 | Auto-focusing push-broom hyperspectral imager based on spectroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217901020U (en) |
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2022
- 2022-06-20 CN CN202221543492.5U patent/CN217901020U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A spectroscopic based autofocus pushbroom hyperspectral imager Granted publication date: 20221125 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Hangzhou high spectrum imaging technology Co.,Ltd. Registration number: Y2024330000373 |