Multi-band police light source system
Mapangidwe oyambira ndi mfundo ya gwero la kuwala kwamitundu yambiri
Gwero la kuwala kwamitundu yambiri ndi njira yowunikira yomwe imagawanitsa kuwala koyera komwe kumatulutsidwa ndi gwero la kuwala m'magulu osiyanasiyana ndi seti imodzi kapena ziwiri za zosefera zamitundu, ndikuzitulutsa kudzera mu kalozera wowunikira.Makamaka imakhala ndi magawo asanu: gwero lowunikira, makina osefera, makina otulutsa, mawonekedwe owongolera, ndi nduna.(Onani chithunzi 1 cha kapangidwe kake).Pakati pawo, gwero la kuwala, kachitidwe ka fyuluta, ndi makina otulutsa ndi zigawo zazikulu za gwero la kuwala kwamagulu ambiri, zomwe zimatsimikizira ntchito ya gwero la kuwala.Gwero lowunikira nthawi zambiri limatenga nyali ya xenon, kuwala kwa indium kapena nyali zina zachitsulo za halide zokhala ndi kuwala kwambiri.Makina osefera makamaka amatanthauza zosefera zamtundu, pali zosefera zamtundu wamba zokutidwa kapena zosefera zamtundu wapamwamba kwambiri wa band-pass.Ntchito yotsirizirayi ndi yabwino kwambiri kuposa yoyambayo, yomwe makamaka imachepetsa bandwidth yodulidwa ya kuwala kwachikuda, ndiko kuti, monochromaticity ya kuwala kwachikuda kumakhala bwino kwambiri.Kutulutsa kwanthawi zonse kwa kutalika kwa mawonekedwe ndi 350 ~ 1000nm, kuphatikiza mizere yambiri yowoneka bwino mumtundu wautali wa ultraviolet, kuwala kowoneka ndi madera apafupi ndi infrared.
Mfundo yogwiritsira ntchito multi-band light source
1. Fluorescence ndi magwero owunikira amitundu yambiri
Pamene ma elekitironi extranuclear okondwa ndi kulumpha kwa boma osangalala, ma elekitironi mu boma osangalala ndi wosakhazikika ndipo nthawi zonse kulumpha kubwerera ku dziko pansi ndi mphamvu m'munsi.Panthawi yodumpha, mphamvu yolandira idzatulutsidwa ngati mawonekedwe a photons..Chochitika chakuti chinthu chimakondwera ndi chisangalalo pambuyo powatsidwa ndi photon ya kutalika kwa mawonekedwe enaake, ndiyeno amalumphira kubwerera ku mlingo wochepa wa mphamvu mwa kutulutsa chithunzithunzi cha kutalika kwina kwake.
Amatchedwa photoluminescence phenomenon, ndipo nthawi ya moyo wa photon nthawi zambiri imatulutsidwa ndi yocheperapo 0.000001 yachiwiri, yomwe imatchedwa fluorescence;pakati pa 0.0001 ndi 0.1 sekondi, imatchedwa phosphorescence.Ngati chinthu chingathe kudzisangalatsa chokha ndikutulutsa fluorescence popanda kutulutsa kuwala kwakunja, akuti chinthucho chili ndi fluorescence.Chinthu chinanso cha fluorescence ndikupanga mafunde owala okhala ndi mafunde osiyanasiyana oyambira kuwala koyambirira (kawirikawiri mafunde afupiafupi kuti apange mafunde aatali) pansi pa chisangalalo cha gwero la kuwala kwakunja, ndipo chiwonetsero cha macroscopic ndikutulutsa kuwala kwamtundu wina.Gwero la kuwala kwamitundu yambiri silingangopereka gwero lounikira loyang'ana mkati mwa fluorescence, komanso gwero lowunikira losangalatsa.
2. Mfundo yolekanitsa mitundu
Mfundo yolekanitsa mitundu ndiyofunikira pakusankha kolondola kwa band wavelength (kuwala kwamtundu) ndi fyuluta yamtundu wa magwero amitundu yambiri.zikutanthauza kuti posankha mithunzi.
Zosefera za Forensic Multiband Light Source
| Njira | (IAD Coating) |
| Gawo lapansi | Pyrex, silicon yosakanikirana |
| Mtengo wa FWHM | 30±5nm |
| CWL(nm) | 365, 415, 450, 470, 490, 505, CSS510, 530, 555, 570, 590, 610 |
| T avg. | > 80% |
| Kutsetsereka | 50% ～OD5 <10nm |
| Kutsekereza | OD=5-6@200-800nm |
| kukula(mm) | Φ15, Φ21.2, Φ25, Φ55, ndi zina zotero. |
Njira Zopanga
