CN201502918U - Multiband excitation light source - Google Patents
Multiband excitation light source Download PDFInfo
- Publication number
- CN201502918U CN201502918U CN200920187237XU CN200920187237U CN201502918U CN 201502918 U CN201502918 U CN 201502918U CN 200920187237X U CN200920187237X U CN 200920187237XU CN 200920187237 U CN200920187237 U CN 200920187237U CN 201502918 U CN201502918 U CN 201502918U
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- CN
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- Prior art keywords
- lamp
- printing opacity
- lamp plate
- light transmitting
- multiband excitation
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Abstract
The utility model discloses a multiband excitation light source, which comprises a lamp panel and a plurality of light transmitting ports, wherein the lamp panel is arranged at the top surface of an operating room of a document examination instrument; the light transmitting ports are arranged into a circle surrounding a central through hole; cylindrical lamp holders matched with the light transmitting ports one to one are fixedly arranged on the lamp panel; a central passage of the lamp holder is communicated with the light transmitting ports; the lamp holder is tilted to the outer side of the lamp panel; the included angle between the central line and the horizontal line of each lamp holder is equal; a radiator board is fixed at the top part of the lamp holder; an LED lamp is fixedly arranged at the bottom part of the radiator board; a collecting mirror is arranged in the lamp holder; and the emitting light of the LED lamp penetrates through the collecting mirror and the light transmitting ports on the lamp panel sequentially and then can be focused at one point in the operating room of the document examination instrument. The multiband excitation light source can obtain exciting lights combined by 255 kinds of different wavelengths, so as to be suitable for different requirements of different documents when in examination, thereby enlarging the observation range of the document examination instrument and ensuring enough brightness for the imaging of a CCD all-in-one machine.
Description
Technical field:
The utility model relates to spectroscopy and automatic control technology, specifically is a kind of multiband excitation source.
Background technology:
The operation principle of the multiband excitation source that tradition " file tester " is used is: the light that the halogen tungsten lamp of band reflector sends is radiated on the working substance plane behind heat-protecting glass, condenser, colour filter, iris.The colour filter of different wave length is contained on the rotating colour filter dish.Can obtain the excitation source illumination of different wave length by rotation colour filter dish.Because be subjected to the restriction of dimensions of mechanical structures, generally speaking, the colour filter dish can only be equipped with 6～8 colour filters.That is to say that the multiband excitation source of this structure can only provide the exciting light of 6～8 kinds of different wave lengths; Even adopt double color filtration sheet dish, also provide the exciting light of tens kinds of different wave lengths to multipotency.Yet in the actual civilian inspection work, the excitation light wave of 6～8 kinds or tens kinds different wave lengths is far from being enough.Therefore this has just fettered the ability to work of file tester widely, makes file tester can't effectively identify work under many occasions.And the halogen tungsten lamp of band reflector is when work, and the heat that sends is very big.Carry out wind-cooling heat dissipating though itself have blower fan, always have the big defective that gets of noise.The back instrument internal temperature that works long hours can constantly raise.In addition, this multiband excitation source is subjected to the restriction of condenser system, and the angle of visual field can not be done very greatly, that is to say that illuminated visual field can not be very big, generally in 150 millimeters Diagonal Dimension scopes; Though iris can be regulated the size of hot spot effectively, the size of maximum hot spot is determined by the angle of visual field of this system, can only carry out size adjustment in this scope.Lighting area is big inadequately, and this makes troubles to use equally.
The utility model content:
The utility model purpose is exactly in order to remedy the defective of prior art, the multiband excitation source that a kind of compact conformation, reliability height is provided, is convenient to practical operation, can provides hundreds of and even hundreds of kind different-waveband to make up
The utility model is achieved through the following technical solutions:
A kind of multiband excitation source, include the lamp plate that is installed in file tester operating room end face, central through hole is arranged on the lamp plate, it is characterized in that: have some printing opacity mouths on the described lamp plate, described printing opacity choma is arranged in circle around central through hole, be installed with the lamp socket of the tubular that cooperates with each printing opacity mouth on the described lamp plate, the central passage of described lamp socket is connected with the printing opacity mouth; Described lamp socket tilts to the lamp plate outside, the angle that forms between the center line of each lamp socket and the horizontal line is identical, described lamp socket top is fixed with heat sink, the bottom of heat sink is installed with the LED lamp, be provided with condenser in the described lamp socket, the emission light of described LED lamp passes successively to be assembled in the file tester operating room behind the printing opacity mouth on condenser, the lamp plate for a bit.
Described a kind of multiband excitation source is characterized in that: have 16 printing opacity mouths on the described lamp plate.
Described a kind of multiband excitation source is characterized in that: described LED lamp includes 8 groups of LED lamp groups, and 8 groups of LED lamps inspire the emission light of different wave length respectively.
The utility model is along the center, visual field of lamp plate, the high-powered LED lamp of uniform 16 8 kinds of different excitation wavelengths on 360 ° of directions, and allow 16 8 kinds of excitation sources carry out various combination by automatically controlled, like this by obtaining the lighting light wave of 255 kinds of different excitation wavelengths combinations after the full combination.Simultaneously because the LED lamp is very near apart from the distance of condenser, so the angle of visual field is enough big, and the area Diagonal Dimension of the A5 paper full width face that is enough to guarantee to throw light on is more than 260 millimeters.The LED lamp power that the utility model adopts is big, and can guarantee has enough brightness on object plane.
After file to be checked is sent into the file tester working face by the protective door of file tester, look different tested file and select in the LED lamp wherein one or more the combination, the light source that the LED lamp after the combination inspires shines on the tested file.Then the infrared CCD all-in-one by file tester and on specially connect camera lens, and by the imaging of infrared filter group of received light, and in monitor figure, be not marked with and show image.The instrumentation personnel select different excitation source combinations, suitable enlargement ratio, contrast according to the characteristics of tested file, can obtain gem-pure file and resemble; And utilize imgae processing software to comparing with class file in the image that received and the database, identify its true and false.
The electric-control system that the utility model uses is implemented control by set control circuit board.
The utility model can obtain the exciting light of hundreds of different-waveband combination, and the visual field is very big, few, the noiseless light source of heat of generation.Satisfy the demand of present domestic public security organs, procuratorial organs and people's court criminal investigation department to literary composition inspection work.
The utility model has the advantages that:
The utility model can obtain the exciting light of 255 kinds of different wave length combinations, to adapt to the different demands of different files when tested; Enlarged the range of observation of file tester; Guaranteed to have enough brightness for the imaging of CCD all-in-one.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of lamp plate.
Fig. 3 is the enlarged drawing at lamp socket place.
The specific embodiment:
A kind of multiband excitation source, include the lamp plate 1 that is installed in file tester operating room end face, central through hole 7 is arranged on the lamp plate, have 16 printing opacity mouths 2 on the lamp plate 1, described printing opacity mouth 2 is arranged in circle around central through hole, be installed with the lamp socket 3 of the tubular that cooperates one by one with printing opacity mouth 2 on the described lamp plate 1, the central passage of described lamp socket 3 is connected with printing opacity mouth 2; Described lamp socket 3 tilts to lamp plate 1 outside, the angle that forms between the center line of each lamp socket 3 and the horizontal line is identical, described lamp socket 3 tops are fixed with heat sink 4, the bottom of heat sink 4 is installed with LED lamp 5, be provided with condenser 6 in the described lamp socket 3, the emission light of described LED lamp 5 passes printing opacity mouth 2 back on condenser 4, the lamp plate 1 successively to be assembled in the file tester operating room for a bit.Described LED lamp 5 includes 8 groups of LED lamp groups, and 8 groups of LED lamps 5 inspire the emission light of different wave length respectively.
Claims (3)
1. multiband excitation source, include the lamp plate that is installed in file tester operating room end face, central through hole is arranged on the lamp plate, it is characterized in that: have some printing opacity mouths on the described lamp plate, described printing opacity choma is arranged in circle around central through hole, be installed with the lamp socket of the tubular that cooperates with each printing opacity mouth on the described lamp plate, the central passage of described lamp socket is connected with the printing opacity mouth; Described lamp socket tilts to the lamp plate outside, the angle that forms between the center line of each lamp socket and the horizontal line is identical, described lamp socket top is fixed with heat sink, the bottom of heat sink is installed with the LED lamp, be provided with condenser in the described lamp socket, the emission light of described LED lamp passes successively to be assembled in the file tester operating room behind the printing opacity mouth on condenser, the lamp plate for a bit.
2. a kind of multiband excitation source according to claim 1 is characterized in that: have 16 printing opacity mouths on the described lamp plate.
3. a kind of multiband excitation source according to claim 2 is characterized in that: described LED lamp includes 8 groups of LED lamp groups, and 8 groups of LED lamps inspire the emission light of different wave length respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920187237XU CN201502918U (en) | 2009-08-31 | 2009-08-31 | Multiband excitation light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920187237XU CN201502918U (en) | 2009-08-31 | 2009-08-31 | Multiband excitation light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502918U true CN201502918U (en) | 2010-06-09 |
Family
ID=42453851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920187237XU Expired - Fee Related CN201502918U (en) | 2009-08-31 | 2009-08-31 | Multiband excitation light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103180663A (en) * | 2010-11-15 | 2013-06-26 | 欧姆龙株式会社 | Illumination device |
-
2009
- 2009-08-31 CN CN200920187237XU patent/CN201502918U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103180663A (en) * | 2010-11-15 | 2013-06-26 | 欧姆龙株式会社 | Illumination device |
| US8950896B2 (en) | 2010-11-15 | 2015-02-10 | Omron Corporation | Illumination apparatus |
| CN103180663B (en) * | 2010-11-15 | 2015-11-25 | 欧姆龙株式会社 | Lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120831 |