CN106382986A - Compound eye bionic micro lens light source for spectrum detection - Google Patents
Compound eye bionic micro lens light source for spectrum detection Download PDFInfo
- Publication number
- CN106382986A CN106382986A CN201610907884.8A CN201610907884A CN106382986A CN 106382986 A CN106382986 A CN 106382986A CN 201610907884 A CN201610907884 A CN 201610907884A CN 106382986 A CN106382986 A CN 106382986A
- Authority
- CN
- China
- Prior art keywords
- light source
- compound eye
- bionical
- lenticule
- lens
- 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.)
- Granted
Links
- 150000001875 compounds Chemical class 0.000 title claims abstract description 34
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000001228 spectrum Methods 0.000 title abstract description 5
- 239000011664 nicotinic acid Substances 0.000 title abstract 6
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 24
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 24
- 239000010937 tungsten Substances 0.000 claims abstract description 24
- 230000003595 spectral effect Effects 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims description 22
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 22
- 230000006837 decompression Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 8
- 238000004497 NIR spectroscopy Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 238000002329 infrared spectrum Methods 0.000 abstract description 2
- -1 tungsten halogen Chemical class 0.000 abstract 2
- 239000000523 sample Substances 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000755 6061-T6 aluminium alloy Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention discloses a compound eye bionic micro lens light source for spectrum detection, relating to the field of weak spectral signal detection. According to the light source, a compound eye bionic micro lens (2) is arranged at the front part of a light source shell (5). Two tungsten halogen lamps (1) are distributed at two sides of the compound eye bionic micro lens (2) in an angle of 25 to 35 degrees. The light source shell (5) is internally provided with a threaded column (7) for fixing a drive circuit (4) which is connected to the tungsten halogen lamps (1). A connector (3) is engaged at the tail end of the light source shell, and a protection cover (6) is engaged at the front end of the light source shell. According to the compound eye bionic micro lens light source, the light source is directly connected to a spectrometer, optical devices such as the compound eye bionic micro lens are added, the information optical power attenuation reduction, light source complexity reduction, detection area increase, the obtainment of a comprehensive spectrum information, and the improvement of the portability of a near infrared spectroscopy are realized, thus the near infrared spectrum detection is facilitated, the volume of a near infrared spectroscopy instrument is reduced, and the development cost of the instrument is reduced.
Description
Technical field
The present invention relates to faint spectral signal detection field, more particularly, to a kind of compound eye for spectral detection is bionical micro-
Mirror light source.
Background technology
Near Infrared Spectroscopy Detection Technology is widely used in the fields such as agricultural, industry, food and environment measuring.With spectrum
The raising that instrument portability, detection range and accuracy of detection require, design one kind can effectively improve information light receiving power, improves
The integrated optical source of image quality and compact structure becomes the development trend of the optimal accessory of spectrometer detection field.At present, great majority
By the way of spectrometer connects beam splitting system using Y-shaped fibre-optical probe, the reflected light information of acquisition testing thing；Sell on the market
Y-shaped fibre-optical probe length mostly is 2m, big through the optical power attenuation of optical fiber；Light source rated power is high, and heating is many, and power consumption is big；
Detect end area only 25mm2, detectable area is little, receives detectable substance information not comprehensive；Probe needs to fix it in use
Position, is unsuitable for changeable detection environment；In order to improve luminous power, Y-shaped fibre-optical probe uses multifiber synthetic fibre-optical bundle,
There is many secondary coupling lossy problem；And it is expensive to pop one's head in, limitation is big, is unfavorable for improving the light-use of spectrometer
Rate, accuracy of detection and portable degree.
Content of the invention
The purpose of the present invention is that and overcomes the optical power attenuation producing in existing optical transmission of information and coupling process, probe
Low detectivity, spectrometer use environment condition is harsh, the problems such as operating process is harsh complicated, provides and a kind of is used for spectral detection
Compound eye bionical lenticule light source.
The object of the present invention is achieved like this：
Specifically, this light source includes halogen tungsten lamp, the bionical lenticule of compound eye, connector, drive circuit, light shell outer cover, protection cap
And threaded post；
Its position and annexation are：
The bionical lenticule of compound eye is arranged at the front middle part of light shell outer cover 5；
2 halogen tungsten lamps are distributed in the bionical lenticular both sides of compound eye in 25～35 °；
It is provided with threaded post for fixed drive circuit in light shell outer cover；
Drive circuit and halogen tungsten lamp connect；
Connector is engaged on light shell outer cover tail end, and protection cap is engaged on light shell outer cover front end.
The present invention has following advantages and good effect：
1st, the power of the halogen tungsten lamp of this light source is 2～5W/, and 2 common 4W just can reach more than conventional spectrograph arbitrary source 10W
Detection demand, and the halogen tungsten lamp using, number is few, photochromic low, so heating is few, without radiating module；
2nd, not incoming fiber optic, is directly connected to spectrometer using connector, need not add optical fiber coupling optical path, reduces coupling and damages
Consumption, reduces light source volume, also reduces cost；
3rd, increased the bionical lenticule of compound eye, reduce incident veiling glare, increase detectable substance information luminous flux, improve energy utilization
Rate；
4th, devise drive circuit, make 2 halogen tungsten lamp normal table work, reduce complexity；
5th, whole light shell outer cover compact conformation is simple, can press close to measured object surface and be detected, prevents the light that misoperation produces
Spectrum error.
In a word, light source is directly connected by the present invention with spectrometer, and increases the optics such as the bionical lenticule of compound eye, realizes
Minimizing information optical power attenuation, the light source complexity that reduces, increase detection area, obtain more comprehensively spectral information and raising
The portable degree of near infrared spectrometer, thus be conducive near infrared spectrum detection, the volume of reduction near infrared spectroscopy instrument and reduction
The development cost of instrument.
Brief description
Fig. 1 is the structured flowchart of this light source；
Fig. 2 is the Structure explosion diagram of this light source；
Fig. 3 is the bionical lenticular structural representation of compound eye；
Fig. 4 is the structural representation of connector；
Fig. 5 is driver circuit schematic diagram；
Fig. 6 is the constructional appearance figure of the present invention.
In figure：
1 halogen tungsten lamp；
The bionical lenticule of 2 compound eyes,
2.1 base lens, 2.2 sub- eyelens；
3 connectors；
4 drive circuits,
4.1 adjustable booster circuits, 4.2 adjustable decompression voltage regulators；
5 light shell outer covers；
6 protection caps；
7 threaded post.
Specific embodiment
Describe in detail with reference to the accompanying drawings and examples：
First, light source
1st, overall
As Fig. 1,2,3,4,5,6, this light source includes halogen tungsten lamp 1, the bionical lenticule of compound eye 2, connector 3, drive circuit 4, light source
Shell 5, protection cap 6 and threaded post 7；
Its position and annexation are：
The bionical lenticule of compound eye 2 is arranged at the front middle part of light shell outer cover 5；
2 halogen tungsten lamps 1 are in 25～35 ° of both sides being distributed in the bionical lenticule of compound eye 2；
It is provided with threaded post 7 for fixed drive circuit 4 in light shell outer cover 5；
Drive circuit 4 and halogen tungsten lamp 1 connect；
Connector 3 is engaged on light shell outer cover tail end, and protection cap 6 is engaged on light shell outer cover front end.
Working mechanism：
Drive circuit 4 is that 2 halogen tungsten lamps 1 are powered so as to light；The bionical lenticule of compound eye 2 is used for the letter of focus detection thing reflection
Breath light, increases luminous flux；Connector 3 is used for connecting this light source and spectrometer, reduces spectrometer volume；Light shell outer cover 5 is used for sealing
Fill all light source devices；Protection cap 6 is used for protecting halogen tungsten lamp 1 and compound eye bionical micro- 2 so as to pollute from dust；Threaded post 7
For fixed drive circuit 4.
2nd, functional part
1）Halogen tungsten lamp 1
Halogen tungsten lamp 1 is a kind of conventional lighting bulb, outsourcing piece, and power is 2W, as light source.
Two halogen tungsten lamps 1, according to 25～35 ° of both sides being distributed in the bionical lenticule of compound eye 2, make luminous energy cover in front
Focus, strengthens illuminance.
2）The bionical lenticule of compound eye 2
As Fig. 3, the bionical lenticule of compound eye 2 is a kind of condenser lens of many structures, including base lens 2.1 and sub- eyelens 2.2；
The some of proper alignment are provided with base lens 2.1（Number difference can affect luminous power size）Sub- eyelens 2.2.
Its function is for focus detection thing reflected light.
* base lens 2.1 are a kind of round lens；Its radius of curvature is 10.5mm, and middle center eye focal length is 10mm, material
For BK7 optical glass；
* sub- eyelens 2.2 is a kind of round lens, square lens or regular hexagon lens.
The a diameter of 1.3mm of round lens, center thickness is 1.1mm；
Square lens are identical with the diameter of regular hexagon lens, connect square or regular hexagon shape in circle（Shape is not
Different with the enhancing effect for luminous power）, material is BK7 optical glass.
3）Connector 3
As Fig. 4, connector 3 is a kind of device of general connection optical fiber interface, for connecting spectrometer.
4）Drive circuit 4
As Fig. 5, drive circuit 4 is made up of adjustable booster circuit 4.1 and adjustable decompression voltage regulator 4.2 two parts；Drive circuit 5
It is output as 12V/0.34A, power output is the rated power 4.08W of 2 halogen tungsten lamps 1.
Its annexation is：
The input supply voltage of spectrometer is connected with decompression voltage regulator 4.2 after adjustable booster circuit 4.1 boosts again, obtains
Moderately stable voltage is light source power supply.
（1）Adjustable booster circuit 4.1
Adjustable booster circuit 4.1 is by booster type voltage stabilizing cake core LM2557T-ADJ U1, Schottky diode IN5821 D1, electricity
Resistance R3, R5, R7 and electric capacity C5, C6, C7 composition；
After 4 pin of chip U1, inductance L1,5 pin of chip U1 form feedback circuit, 1 pin of chip U1, resistance R5 and electric capacity C7 group
Become input comparison voltage circuit.
（2）Decompression voltage regulator 4.2
Decompression voltage regulator 4.2 by low pressure difference linear voltage regulator TPS73801 U2, electric capacity C1, C2, C3, C4 and resistance R1 group
Become；Electric capacity C1, C2, C3, C4 are filter circuit, and resistance R1, R2 are adjustable step-down partial pressure output circuit.
5）Light shell outer cover 5
Light shell outer cover 5 is a kind of metal shell, for encapsulating the device such as halogen tungsten lamp 1 and the bionical lenticule of compound eye 2, and is easy to take
Hold.
6）Protection cap 6
Protection cap 6 is a kind of metal lid, is used for protecting halogen tungsten lamp 1 and the bionical lenticule of compound eye 2 so as to pollute from dust.
7）Threaded post 7
As Fig. 2, threaded post 7 is a kind of metal cartridge, is used for fixing simple drive circuit 4.
3rd, technological design
Overall materials are 6061-T6 aluminium alloy, and oxide treatments prevent from aoxidizing once again, protect aluminium alloy interior metal.
The a diameter of 10.6mm of halogen tungsten lamp 1, power 2W, rated voltage 12V, it is distributed in the bionical micro- both sides of compound eye, with it be in
30 ° of angles are in order that illumination is more concentrated, and strengthen the efficiency of light energy utilization.
As Fig. 6, all design is completed this light source by SolidWorks2014, according to GB/T1804-2000m grade mark,
Surface roughness is 1.6, surface knurling.
Claims (3)
1. a kind of bionical lenticule light source of the compound eye for spectral detection it is characterised in that：
This light source includes halogen tungsten lamp（1）, the bionical lenticule of compound eye（2）, connector（3）, drive circuit（4）, light shell outer cover（5）、
Protection cap（6）And threaded post（7）；
Its position and annexation are：
The bionical lenticule of compound eye（2）It is arranged at light shell outer cover（5）Front middle part；
2 halogen tungsten lamps（1）It is distributed in the bionical lenticule of compound eye in 25～35 °（2）Both sides；
In light shell outer cover（5）Inside it is provided with threaded post（7）For fixed drive circuit（4）；
Drive circuit（4）And halogen tungsten lamp（1）Connect；
Connector（3）It is engaged on light shell outer cover tail end, protection cap（6）It is engaged on light shell outer cover front end.
2. the bionical lenticule light source of the compound eye for spectral detection as described in claim 1 it is characterised in that：
The bionical lenticule of described compound eye（2）It is a kind of condenser lens of many structures, including base lens（2.1）With sub- eyelens
（2.2）；In base lens（2.1）On be provided with some sub- eyelens of proper alignment（2.2）；
Base lens（2.1）It is a kind of round lens；
Sub- eyelens（2.2）It is a kind of round lens, square lens or regular hexagon lens.
3. the bionical lenticule light source of the compound eye for spectral detection as described in claim 1 it is characterised in that：
Described drive circuit（4）By front latter linked adjustable booster circuit（4.1）With adjustable decompression voltage regulator（4.2）Group
Become；
Adjustable booster circuit（4.1）By booster type voltage stabilizing cake core LM2557T-ADJ（U1）, Schottky diode IN5821
（D1）, resistance（R3、 R5、R7）And electric capacity（C5、C6、C7）Composition；
Decompression voltage regulator（4.2）By low pressure difference linear voltage regulator TPS73801（U2）, electric capacity（C1、C2、C3、C4）And resistance
（R1）Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610907884.8A CN106382986B (en) | 2016-10-18 | 2016-10-18 | For the bionical lenticule light source of compound eye of spectral detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610907884.8A CN106382986B (en) | 2016-10-18 | 2016-10-18 | For the bionical lenticule light source of compound eye of spectral detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106382986A true CN106382986A (en) | 2017-02-08 |
| CN106382986B CN106382986B (en) | 2018-06-22 |
Family
ID=57957951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610907884.8A Active CN106382986B (en) | 2016-10-18 | 2016-10-18 | For the bionical lenticule light source of compound eye of spectral detection |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559982Y (en) * | 2002-08-27 | 2003-07-09 | 中国科学院光电技术研究所 | CCD biological chip detecting instrument with homogeneous illuminating system |
| JP2006047270A (en) * | 2004-07-05 | 2006-02-16 | Shimadzu Corp | Wavelength-variable monochromatic light source |
| JP2013002951A (en) * | 2011-06-16 | 2013-01-07 | Olympus Corp | Measuring device |
| CN203824649U (en) * | 2014-05-22 | 2014-09-10 | 中国农业大学 | Light source system used for multi-function spectrum detection |
| CN104534340A (en) * | 2014-12-25 | 2015-04-22 | 中南民族大学 | Front annular halogen tungsten lamp light sources |
| CN105841022A (en) * | 2016-03-29 | 2016-08-10 | 上海卫星工程研究所 | Sunlight source xenon lamp simulating system |
| CN206114111U (en) * | 2016-10-18 | 2017-04-19 | 中南民族大学 | A bionical lenticule light source of compound eye for spectral detection |
-
2016
- 2016-10-18 CN CN201610907884.8A patent/CN106382986B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2559982Y (en) * | 2002-08-27 | 2003-07-09 | 中国科学院光电技术研究所 | CCD biological chip detecting instrument with homogeneous illuminating system |
| JP2006047270A (en) * | 2004-07-05 | 2006-02-16 | Shimadzu Corp | Wavelength-variable monochromatic light source |
| JP2013002951A (en) * | 2011-06-16 | 2013-01-07 | Olympus Corp | Measuring device |
| CN203824649U (en) * | 2014-05-22 | 2014-09-10 | 中国农业大学 | Light source system used for multi-function spectrum detection |
| CN104534340A (en) * | 2014-12-25 | 2015-04-22 | 中南民族大学 | Front annular halogen tungsten lamp light sources |
| CN105841022A (en) * | 2016-03-29 | 2016-08-10 | 上海卫星工程研究所 | Sunlight source xenon lamp simulating system |
| CN206114111U (en) * | 2016-10-18 | 2017-04-19 | 中南民族大学 | A bionical lenticule light source of compound eye for spectral detection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106382986B (en) | 2018-06-22 |
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