1. Infrared Optics ke eng?

Sesebelisoa sa Infrared Optics

Lisebelisoa tsa infrared optics li sebelisoa ho bokella, ho tsepamisa maikutlo kapa ho kopana le khanya ho haufi le infrared (NIR), short-wave infrared (SWIR), mid-wave infrared (MWIR) kapa long-wave infrared (LWIR) spectra. Maqhubu a infrared a oela ho 700 - 16000nm wavelengths 'me ponahalo e' ngoe le e 'ngoe e fapaneng e arotsoe ka:

  • NIR 700 - 900nm
  • SWIR 900 - 2300nm
  • MWIR 3000 - 5000nm
  • LWIR 8000 - 14000nm

2. Short-Wave Infrared (SWIR)

Lense ea SWIR ea Optics ea Infrared Lense ea IR Optics IR Lense
Lense ea SWIR

Sistimi ea SWIR e akaretsa ho tloha ho 0.9μm-3μm spectrum range. Lisebelisoa tsa optics li hloka ho fetisa leseli le bonahalang le la infrared mme li hloka mohloli o khanyang joalo ka letsatsi, khoeli, linaleli, jj.

E ntse e sebelisoa lits'ebetsong tse ngata tse kang spectroscopy bakeng sa ho hlopha, ho lemoha mongobo, ho nka litšoantšo ka mocheso (o sebelisetsoang khalase le lintho tsa polasetiki), le litšoantšo - pono ea bosiu le lisebelisoa tsa litšoantšo.

3. Mid-Wave Infrared (MWIR)

Lense ea MWIR ea Infrared Optics Lense ea Infrared IR Optics IR Lense
Lense ea MWIR

Sistimi ea MWIR e akaretsa 3-5μm spectrum range mme hangata e tsamaiso e pholileng. Kahoo, e ka tlase angoa ke mongobo bapisoa le Sistimi ea LWIR bakeng sa mefuta e mengata ea sepheo, e loketseng likopo tse kang ho lebela lebopong la leoatle, sephethephethe sa likepe leihlo, kapa tshireletso ya boemakepe.

Ho tloha ka sepheo sa mantlha ke ho fumana litšoantšo tsa boleng bo holimo ho fapana le ho tsepamisa maikutlo ho tsona litekanyo tsa mocheso le motsamao.

Litšoantšo tse ka tlase li bontša hore setšoantšo sa MWIR se bohale ho feta 'me se na le phapang e phahameng ea mocheso ha se bapisoa le setšoantšo sa LWIR.

Ke Eng Infrared Optics Setšoantšo sa MWIR
Setšoantšo sa MWIR
Setšoantšo sa LWIR sa Infrared Optics ke eng
Setšoantšo sa LWIR

4. Long-Wave Infrared (LWIR)

Lense ea LWIR ea Lense ea Khale
Lense ea LWIR
Setšoantšo sa COVID-19
Thermal Imaging COVID-19

Sistimi ea LWIR e sebetsa ho tloha ho 7-14μm spectrum range. Leha ho le joalo, boholo ba kh'amera ea LWIR e sebetsa hantle ho tloha 8-12μm.

Sistimi ea LWIR hangata e tsejoa e le "maiging ea mocheso" kaha e lemoha mesaeno ea mocheso e tsoang nthong 'me ha e hloke khanya ho etsa setšoantšo.

Mefuta ea rona ea lilense tsa LWIR le eona e bapala karolo ea bohlokoa nakong ea seoa sa COVID-19, ithute haholoanyane Mona.

Bokhoni ba ho nahana ka mocheso oa sistimi ea LWIR bo entse hore e be likarolo tsa bohlokoa tse khahlang bakeng sa palo e ntseng e eketseha ea sesole, ts'ireletso, leihlo, lits'ebetso tsa mahlale le tsa indasteri.

Infrared Optics ke Eng? Thermal Imaging
Setšoantšo sa Thermal 1
Infrared Optics ke Eng? Setšoantšo sa Thermal 2
Setšoantšo sa Thermal 2
Infrared Optics ke Eng? Setšoantšo sa Thermal 3
Setšoantšo sa Thermal 3

5. Ts'ebetso ea likarolo

Ka kakaretso, li-infrared optics li arotsoe ka SWIR, MWIR, le LWIR ho ea ka bongata ba maqhubu. Leha ho le joalo, e boetse e arotsoe ka mokhoa o hlophisitsoeng ho tsamaellana le ts'ebetso ea eona joalo ka:

  • Lense ea Athermal
    Mochine oa optical o na le mocheso oa mocheso haeba likarolo tsa oona tsa bohlokoa tsa ts'ebetso tse kang ho feto-fetoha ha molumo, bolelele ba ho sheba morao le bolelele bo sebetsang ba ho tsepamisa mohopolo, joalo-joalo li sa fetohe ka mokhoa o babatsehang ho feta mocheso oa ho sebetsa.
  • Atometsa litlolo
    Sistimi ea optical e koahelang ho tloha ho FOV e moqotetsane le e pharaletseng e sa khaotse.
  • Lense tse peli tsa FOV
    Sistimi ea optical e fanang ka khetho ea ho fetoha ho tloha bophara ho ea ho FOV e tšesaane ka mokhoa o ikhethileng.
  • Lense ea Dual-Band
    Sistimi ea optical e koahelang mefuta e 'meli ea spectrum ea MWIR le LWIR.

6. Litlhaloso tsa Infrared Optics

Number KaroloWavelength (µm)Bolelele bo shebileng (mm)Mofuta oa TsepamisoF#BWD (mm)MountSemilmo
Infra-SW122.5-151.5 - 5.012Manual2.533.1Bayonet640 x 512, 15µm
Infra-SW252.5-151.5 - 5.025Manual2.533.1Bayonet640 x 512, 15µm
Infra-SW253.0-171.5 - 5.025Manual3.033.1Bayonet1024 x 768, 17µm
Infra-SW502.5-151.5 - 5.050Manual2.533.1Bayonet640 x 512, 15µm
Infra-SW502.3-171.5 - 5.050Manual2.339.4Bayonet1024 x 768, 17µm
Infra-SW1002.3-171.5 - 5.0100Manual2.333.1Bayonet1024 x 768, 17µm
Infra-SW1002.5-151.5 - 5.0100Manual2.533.1Bayonet640 x 512, 15µm
Infra-SW2002.5-151.5 - 5.0200Manual2.533.1Bayonet640 x 512, 15µm
Infra-SW252.5-300.9 - 2.525Manual2.513.5C-hloa thaba320 x 256, 30µm
Infra-SW352.0-300.9 - 2.535Manual2.013.4C-hloa thaba320 x 256, 30µm
Infra-SW502.0-300.9 - 2.550Manual2.013.5C-hloa thaba320 x 256, 30µm
Infra-SW752.0-300.9 - 2.575Manual2.013.5C-hloa thaba320 x 256, 30µm
Infra-SW1002.0-300.9 - 2.5100Manual2.013.5C-hloa thaba320 x 256, 30µm
Infra-SW2002.0-300.9 - 2.5200Manual2.013.5C-hloa thaba320 x 256, 30µm

Ho u fa pono e betere, re kenyelelitse tafole ea rona ea lense ea SWIR le litlhaloso tsa eona tse kaholimo. Mona ke lintlha tse ling tsa infrared optics tse sebelisoang indastering:

  • Bolelele ba nako
  • F#
  • Sekhahla sa Spectrum
  • FOV (HFOV / VFOV)
  • BWD
  • Boholo ba Mohloli - Sheba tharollo
  • Athermal (mocheso o sebetsang)
  • E pholile kapa e sa pholile, haeba e pholisitsoe joale kopa 
    • Boemo ba thebe e batang
    • Bophahamo ba thebe e batang
  • Sesupo sa Tshebetso sa Lense
    • MTF
    • Phetolo
    • Leseli Le Lelapa
  • Mofuta oa Tsepamiso
  • Mount
  • Ho tiisa

Hopola hore o hloka ho utloisisa detector ea infrared kapa lintlha tsa sensor pele u khetha hore na u para lense efe.

7. Sesebelisoa sa Infrared Detector kapa Sensor ke eng?

Infrared detector/sensor ke transducer ya matla a kganyang, e fetolang matla a kganyang ka hara bante ya infrared hore e be sebopeho se lekanngwang.

Ho na le lisebelisoa tse ngata tsa li-detector tse nang le li-curve tsa karabelo tse lekanang ka har'a sebono se boletsoeng sa infrared.

Ha re shebeng qeto ea eona le boholo ba pixel boo u ka bo tsebang:

  •     VGA (Video Graphics Array) - 640 x 480
  •     QVGA (Quarter Video Graphics Array) - 320 x 240
  •     XGA (E Atolositsoeng ea Graphics Array) - 1024 x 768
  •     HD (Tlhaloso e Phahameng) - 1280 x 1024
  •     Mokhoa o ntse o fokola ho tloha ho 30um ho ea ho 12um sa boholo ba pixel

Li-detectors tsa infrared li arotsoe ka mefuta ea mocheso, e sa itšetleheng ka bolelele ba maqhubu, le mefuta ea quantum e itšetlehileng ka bolelele ba maqhubu.

7.1 Mofuta oa Thermal / Non-Quantum

Mofuta oa thermal/non-quantum ke detector/sensor e fetolang mocheso ho ipapisitsoe le mahlaseli a amang.

Phetoho ea mocheso e baka phetoho ea motlakase ho thermopile le phetoho ea ho hanyetsa bolometer, eo ka nako eo e ka lekanyetsoang le e amanang le palo ea mahlaseli a ketsahalo.

Sena se kenyelletsa thermocouple, thermopile, bolometer, le li-detectors tsa pyroelectric. E 'ngoe ea litšoaneleho tse khahlehang ka ho fetisisa tsa li-detectors tsa mocheso ke karabelo e lekanang ho mahlakore ohle a maqhubu.

Sena se tlatsetsa botsitsong ba tsamaiso e tlamehang ho sebetsa holim'a mefuta e mengata ea mocheso. Ntlha e 'ngoe ea bohlokoa ke hore li-detectors tsa mocheso ha li hloke ho pholile. 

Mohloli o tloaelehileng haholo oa mofuta oa thermal/non-quantum ke VOX microbolometer.

7.2 Mofuta oa Quantum

Mofuta oa quantum ke detector/sensor e sebetsang ho ipapisitse le matla a kahare a motlakase mme e sebelisana ka kotloloho le li-photon tse amang.

Lisebelisoa tsena li arabela mahlaseli a infrared ka ho monya li-photon tse phahamisetsang lielektrone tsa thepa boemong bo phahameng ba matla, ho baka phetoho ea conductivity, voltage, kapa hona joale.

Ho na le tlhoko ea ho theola mocheso ho lithempereichara tsa cryogenic ho eketsa ts'ebetso / kutloisiso ea infrared. Mekhoa ea ho pholisa e kenyelletsa lienjineri tsa "Stirling cycle", "liquid nitrogen" le "thermoelectric cooling".

Lik'hamera tsa litšoantšo tse pholileng ke tsona tse amehang haholo liphapanong tse nyane tsa mocheso oa sebaka. 

Lisebelisoa tsa quantum detector li kenyelletsa - InSb, InGaAs, PbS, PbSe, HgCdTe (MCT)

8. Qetello

Ka kakaretso, lits'ebetso tsa infrared optics li sebelisoa ho NIR ho ea ho LWIR spectra ho tloha 700 - 16000nm wavelengths. Infrared Optics e boetse e arotsoe ka tšebetso ea eona joalo ka lense ea athermal, zoom lens, dual FOV lens, kapa dual-band lens. 

Hona joale o tseba lintho tsa motheo tsa infrared optics le mefuta ea eona ea detector, ke hobane'ng ha u sa hlahlobe li-infrared optics tsa rona ka ho feletseng?

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