CN111795741A - Low-thermal-stability light source system for spectrum collection - Google Patents
Low-thermal-stability light source system for spectrum collection Download PDFInfo
- Publication number
- CN111795741A CN111795741A CN202010543691.5A CN202010543691A CN111795741A CN 111795741 A CN111795741 A CN 111795741A CN 202010543691 A CN202010543691 A CN 202010543691A CN 111795741 A CN111795741 A CN 111795741A
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- light source
- light
- acquisition
- supporting frame
- reflector
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- 238000001228 spectrum Methods 0.000 title claims abstract description 34
- 230000017525 heat dissipation Effects 0.000 claims abstract description 20
- 230000003595 spectral effect Effects 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000005286 illumination Methods 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000701 chemical imaging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000012306 spectroscopic technique Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- -1 tungsten halogen Chemical class 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
- G01J2003/102—Plural sources
Abstract
The invention relates to a low-thermal-stability light source system for spectrum collection, which solves the problems of inconsistent collected spectrum information and distortion of collected space information caused by uncertainty of spatial positions of a collection camera and an illumination system, and solves the problems of damage of a traditional light source to cultural relic art and the like. The device comprises a supporting frame, a power supply module and at least two groups of light source modules; the light source module comprises a heat dissipation plate, a reflecting plate, a light emitting assembly and a band-pass attenuation sheet; the reflector is stacked on the heat dissipation plate; the light-emitting component is arranged on the reflector; the band-pass attenuation sheet is arranged on the reflector and covers the light emitting surface of the light emitting component; the left side and the right side of the supporting frame are respectively fixed with a group of light source modules, and the plane where the heat dissipation plate is located in the light source modules is parallel to the plane where the supporting frame is located; an acquisition observation window is arranged on the supporting frame, and the acquisition system realizes observation and acquisition through the acquisition observation window; the power supply module is used for supplying power to the light-emitting assembly. The light source system can be used in the collection process of the spectrum of the cultural relic art.
Description
Technical Field
The invention relates to a low-thermal-stability light source system for spectrum collection, which can be used in the process of collecting the spectrum of a cultural relic artwork.
Background
The cultural value and the economic value of the cultural relic art are higher, along with the increasing improvement of the protection standard of the cultural relic art and the increasing activity of the trade market of the art, the demand of digitally collecting the cultural relic art is becoming greater, and the digital collection of the cultural relic art can not leave the lighting source.
The spectrum technology can obtain target spectrum information, especially the spectrum imaging technology can obtain target space and spectrum dual information, the spectrum imaging technology can cover a series of wave bands from visible light to thermal infrared, and the spectrum imaging technology has the advantages of remote sensing detection and attribute identification and has the characteristics of no damage, quickness, hidden information analysis and the like. Hundreds of wave spectrums and high wave spectrum resolution ratio can collect and analyze the changes of materials, pigments, patterns and the like on the surface of the cultural relic art. Therefore, the spectroscopic technique and the spectroscopic imaging technique have become an important study means of the cultural relics and artworks.
However, for collection of spectra and spectra of cultural relics and art works, firstly, the problem of a spectrum illumination light source for digital collection needs to be solved, a common method is to irradiate through a fixed halogen tungsten lamp, and obtain the spectrum (image) information of the cultural relics by using a spectrometer or an imaging spectrometer, because the collection system is divided into a lighting system and a collection camera by a traditional method, the two are designed separately, the uncertainty and randomness of the spatial positions of the collection camera and the lighting system, and the change of the geometric position relationship between the lighting system and the collection camera cause the collected spectrum image information to have the problems of inconsistent collected spectrum information, distortion of the collected spatial information and the like, and even if calibration is used, the inconsistency is difficult to be solved, which inevitably affects the accuracy of the subsequent quantitative analysis of the spectra. Meanwhile, the traditional tungsten halogen lamp light source has the characteristic of high heat which has certain damage to the cultural relic art, especially under the condition of close-range shooting. Therefore, a low-thermal spectrum light source system capable of ensuring the relative stability of the collecting camera and the illumination system needs to be researched.
Disclosure of Invention
The invention aims to provide a low-thermal-stability light source system for collection of a spectrum of a cultural relic art, which solves the problems of inconsistent collected spectrum information and distortion of collected space information caused by uncertainty of spatial positions of a collection camera and an illumination system, and solves the problems of damage of a traditional light source to the cultural relic art. The method can be applied to various optical acquisition systems such as a full-color imaging system, a spectral imaging system, a spectrometer and the like; the device can be used independently, and can also be arranged on a push-broom track to carry out push-broom imaging along with an acquisition system.
The specific technical scheme of the invention is as follows:
a low thermal stability light source system for spectrum collection, characterized in that: the device comprises a supporting frame, a power supply module and at least two groups of light source modules;
the light source module comprises a heat dissipation plate, a reflecting plate, a light emitting assembly and a band-pass attenuation sheet; the reflector is stacked on the heat dissipation plate; the light-emitting component is arranged on the reflector; the band-pass attenuation sheet is arranged on the reflector and covers the light emitting surface of the light emitting component;
the light emitting assembly is used for irradiating light beams with different spectral bands, the reflector is used for reflecting the light beams irradiated by the light emitting assembly to a target to be collected, and the band-pass attenuation sheet is used for attenuating the light transmittance of the specified spectral band;
the left side and the right side of the supporting frame are respectively fixed with a group of light source modules, and the plane where the heat dissipation plate is located in the light source modules is parallel to the plane where the supporting frame is located; an acquisition observation window is arranged on the supporting frame, and the acquisition system realizes observation and acquisition through the acquisition observation window;
the power supply module is used for supplying power to the light-emitting assembly.
Furthermore, in order to enable the light beams to be converged on the target to be detected as much as possible, the light reflecting plate comprises a bottom plate and folded edges arranged on the left side and the right side of the bottom plate, the folded edges are folded upwards, an included angle between the folded edges and the bottom plate is an obtuse angle, the lower surface of the bottom plate is fixed with the heat radiating plate, and the upper surface of the bottom plate is a light reflecting surface;
the width of the folded edge ensures the projection of the folded edge on the supporting frame, and the folded edge does not shield the acquisition observation window.
Further, in order to be suitable for different environments or different targets to be detected, the light emitting assembly is at least two led lamp belts with different spectral bands, the two led lamp belts are arranged along the reflecting surface of the reflecting plate, the led lamps are parallel to each other, and the spectral bands and the number of the lamp belts can be used in a combined mode.
Furthermore, in order to stably fix the light source module, the supporting frame is a square metal frame, and the collection observation window is arranged in the center of the supporting frame.
Further, in order to enhance the heat dissipation effect and optimize the system structure, the heat dissipation plate is a rectangular metal plate.
Furthermore, the left and right sides of the supporting frame are respectively fixed with the heat dissipation plate in each group of light source modules.
Further, in order to improve the light reflection effect, the color of the reflector is white or milky white.
The invention has the beneficial effects that:
1. the light source system and the collection system have relatively determined spatial positions, and when the light source system is applied to collection of the spectrum of the cultural relic and art work, the consistency of the spectrum image information and the spectrum information can be ensured;
2. the emergent light of the light source system can cover different spectral bands, and the application range is wide.
3. The light source system has the advantages that through the arrangement of the LED lamp belts, the light source is uniform, the bandwidth radiation is stable, and the system is low in heat through the arrangement of the heat dissipation plate; when the spectrum collection device is applied to the spectrum collection of cultural relics and artworks, the thermal radiation damage to the artworks can be obviously reduced.
4. The light source system is flexible and convenient to use, and can be installed together with the acquisition system or used independently according to specific use requirements.
Drawings
FIG. 1 is a front view of a spectral light source system of the present invention without the band-pass attenuator;
FIG. 2 is a back view of the spectral light source system of the present invention;
FIG. 3 is a bottom view of one of the light source modules of the spectral light source system of the present invention;
the reference numbers in the figures are: 1-supporting frame, 2-heating panel, 3-reflector, 4-led lamp strip, 5-band-pass attenuation sheet, and 6-collection window.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1-3, the light source system of this embodiment includes a power supply module, 1 supporting frame, 2 heat dissipation plates, 2 reflection plates, 10 led strips, and 2 band-pass attenuators. Wherein 1 heating panel, 1 reflector panel, 5 led lamp areas and 1 band-pass attenuation piece constitute a set of light source module, include two sets of light source modules altogether, and two sets of light source modules are fixed respectively on two edges about braced frame. The braced frame of this embodiment is square structure, and the metal material, middle fretwork are collection window, and the camera is installed at the light source system back to realize observing the collection through observation window. In other embodiments, support frames with other structural forms can be adopted, and only the two groups of light source modules can be stably fixed and the camera can observe and collect through the observation window.
In each group of light source modules, the reflector plates are stacked on the heat dissipation plate, the led lamp strips are installed at specific positions of the reflector plates in a specific sequence, 5 led lamp strips with different spectral bands are installed on each reflector plate, the power supply module is responsible for supplying power to the led lamp strips, the band-pass attenuation pieces are installed on the led lamp strips in a covering mode and attenuate the light transmission rate of the specified spectral bands, the bandwidth of the attenuation pieces used in the embodiment is 480 + 520nm, and the attenuation rate is 50%. The heat dissipation plate is a rectangular metal plate, or may be any other shape such as a square, and the light source module is fixed to the support frame through the heat dissipation plate. The structure of reflector panel is trapezoidal, and it includes the bottom plate promptly and is located the hem on the bottom plate left and right sides limit, and the hem turns over the book and be the obtuse angle with the contained angle between the bottom plate, and its material is white or milk white for the metal colour, and the lower surface and the heating panel of bottom plate are fixed, and the upper surface is the reflection of light face, and 5 LED lamp areas are parallel to each other lay on the reflection of light face, and the reflection of light face is to waiting to gather the light beam reflection in LED lamp area. The LED lamp belts are LED lamp belts with various spectral bands, and each group of 5 LED lamp belts arranged on the light source module sequentially comprises warm white light LED, red light LED, green light LED, blue light LED and cold white light LED. Other light emitting components may be used in place of the led strip in other embodiments.
The light source system of this embodiment can be applied to push away and sweep type spectrum collection system, can use alone also can be in the same place with the installation of collection camera, and light source system and collection camera have the spatial position of relative definite, follow collection camera and carry out push away and sweep the formation of image, can ensure that spectral image information is unanimous with spectral information.
It is to be understood that the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally used herein based on the orientation or positional relationship shown in the drawings for convenience in describing the present invention and simplicity in description, and are not intended to limit the scope of the present invention since the directional terms are not used to indicate and imply that the referenced apparatus or component must have a particular orientation or be constructed and operated in a particular orientation. It should be noted that fig. 1, 2 and 3 are only examples, are not drawn to scale, and should not be construed as limiting the scope of the invention.
Claims (7)
1. A low thermal stability light source system for spectrum collection, comprising: the device comprises a supporting frame, a power supply module and at least two groups of light source modules;
the light source module comprises a heat dissipation plate, a reflecting plate, a light emitting assembly and a band-pass attenuation sheet; the reflector is stacked on the heat dissipation plate; the light-emitting component is arranged on the reflector; the band-pass attenuation sheet is arranged on the reflector and covers the light emitting surface of the light emitting component;
the light emitting assembly is used for irradiating light beams with different spectral bands, the reflector is used for reflecting the light beams irradiated by the light emitting assembly to a target to be collected, and the band-pass attenuation sheet is used for attenuating the light transmittance of the specified spectral band;
the left side and the right side of the supporting frame are respectively fixed with a group of light source modules, and the plane where the heat dissipation plate is located in the light source modules is parallel to the plane where the supporting frame is located; an acquisition observation window is arranged on the supporting frame, and the acquisition system realizes observation and acquisition through the acquisition observation window;
the power supply module is used for supplying power to the light-emitting assembly.
2. The low thermal stability light source system for spectrum collection according to claim 1, wherein: the reflector comprises a bottom plate and folded edges arranged on the left side and the right side of the bottom plate, the folded edges are folded upwards, an included angle between the folded edges and the bottom plate is an obtuse angle, the lower surface of the bottom plate is fixed with the heat dissipation plate, and the upper surface of the bottom plate is a reflecting surface;
the width of the folded edge ensures the projection of the folded edge on the supporting frame, and the folded edge does not shield the acquisition observation window.
3. The low thermal stability light source system for spectral acquisition of claim 2, wherein: the light-emitting component is the led lamp area of two at least different spectral bands, and the led lamp area is laid along the reflection of light face of reflector panel, and each led lamp is parallel to each other.
4. The low thermal stability light source system for spectral acquisition of claim 3, wherein: the supporting frame is a square metal frame, and the acquisition observation window is arranged in the center of the supporting frame.
5. The low thermal stability light source system for spectral acquisition of claim 4, wherein: the heat dissipation plate is a rectangular metal plate.
6. The low thermal stability light source system for spectral acquisition of claim 5, wherein: the left side and the right side of the supporting frame are respectively fixed with the heat dissipation plate in each group of light source modules.
7. The low thermal stability light source system for spectral acquisition of claim 7, wherein: the color of the reflector is white or milky white.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543691.5A CN111795741A (en) | 2020-06-15 | 2020-06-15 | Low-thermal-stability light source system for spectrum collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010543691.5A CN111795741A (en) | 2020-06-15 | 2020-06-15 | Low-thermal-stability light source system for spectrum collection |
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| CN111795741A true CN111795741A (en) | 2020-10-20 |
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| CN202010543691.5A Pending CN111795741A (en) | 2020-06-15 | 2020-06-15 | Low-thermal-stability light source system for spectrum collection |
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|---|---|---|---|---|
| US20060285323A1 (en) * | 2005-06-16 | 2006-12-21 | Optilume Ltd | Lighting device |
| CN1910431A (en) * | 2004-01-23 | 2007-02-07 | 奥林巴斯株式会社 | Image processing system and camera |
| US20100141931A1 (en) * | 2008-12-10 | 2010-06-10 | Aplik, S.A. | Method and device for quantitatively determining the surface optical characteristics of a reference object comprised by a plurality of optically differentiable layers |
| CN207635170U (en) * | 2017-12-28 | 2018-07-20 | 青岛利恩迪电子科技发展有限公司 | A kind of high efficiency smart subway dedicated lamp |
| CN109154525A (en) * | 2016-02-23 | 2019-01-04 | 博雷亚公司 | For the lighting device to the device including tooth staining in the oral cavity, the device to tooth staining includes above-mentioned lighting device |
| CN209659439U (en) * | 2019-04-19 | 2019-11-19 | 苏州极目机器人科技有限公司 | Image detecting apparatus |
| US20200041343A1 (en) * | 2018-08-02 | 2020-02-06 | Seiko Epson Corporation | Spectroscopic measurement apparatus, electronic apparatus, and spectroscopic measurement method |
| CN111214209A (en) * | 2018-11-27 | 2020-06-02 | 晶元光电股份有限公司 | Optical sensing module |
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2020
- 2020-06-15 CN CN202010543691.5A patent/CN111795741A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1910431A (en) * | 2004-01-23 | 2007-02-07 | 奥林巴斯株式会社 | Image processing system and camera |
| US20060285323A1 (en) * | 2005-06-16 | 2006-12-21 | Optilume Ltd | Lighting device |
| US20100141931A1 (en) * | 2008-12-10 | 2010-06-10 | Aplik, S.A. | Method and device for quantitatively determining the surface optical characteristics of a reference object comprised by a plurality of optically differentiable layers |
| CN109154525A (en) * | 2016-02-23 | 2019-01-04 | 博雷亚公司 | For the lighting device to the device including tooth staining in the oral cavity, the device to tooth staining includes above-mentioned lighting device |
| CN207635170U (en) * | 2017-12-28 | 2018-07-20 | 青岛利恩迪电子科技发展有限公司 | A kind of high efficiency smart subway dedicated lamp |
| US20200041343A1 (en) * | 2018-08-02 | 2020-02-06 | Seiko Epson Corporation | Spectroscopic measurement apparatus, electronic apparatus, and spectroscopic measurement method |
| CN111214209A (en) * | 2018-11-27 | 2020-06-02 | 晶元光电股份有限公司 | Optical sensing module |
| CN209659439U (en) * | 2019-04-19 | 2019-11-19 | 苏州极目机器人科技有限公司 | Image detecting apparatus |
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Application publication date: 20201020 |
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