IZinc Selenide (ZnSe)
IiLensi zePlano-Concave

Iilensi zePlano-concave ziilensi ezingezizo ezityebileyo emphethweni kunasembindini, xa ukukhanya kudlula kuzo, kuyahlukana kwaye indawo ekugxilwe kuyo yinyani.Ubude bawo obugxininisekile bungalunganga, kunye ne-radius ye-curvature yeendawo ezigobileyo.Ngenxa yokuphambuka kwesangqa esinegeyibhile, iilensi zeplano-concave zinokusetyenziswa ukulungelelanisa ukuphambuka okungqukuva okubangelwa zezinye iilensi kwinkqubo yokukhanya.Iilensi zePlano-concave ziluncedo ekuphambukiseni umqadi odibeneyo kunye nokudibanisa umqadi oguquguqukayo, zisetyenziselwa ukwandisa izibane zokukhanya kunye nokwandisa ubude obugxilwe kwiinkqubo ezikhoyo zamehlo.Ezi lensi zingalunganga ziqhele ukusetyenziswa kwiiteleskopu, iikhamera, iilaser okanye iiglasi ukunceda iinkqubo zokukhulisa ukuba zihlangane ngakumbi.

Iilensi zePlano-concave zisebenza kakuhle xa into kunye nomfanekiso ukwi-absolute conjugate ratios, enkulu kuno-5:1 okanye ngaphantsi kwe-1:5.Kule meko, kunokwenzeka ukunciphisa i-spherical aberration, coma, kunye nokuphazamiseka.Ngokufanayo neelensi zeplano-convex, ukuphumeza ukusebenza kakuhle okuphezulu umphezulu ogobileyo kufuneka ujongane nowona mgama mkhulu wento okanye i-conjugate engapheliyo ukunciphisa ukuphambuka okungqukuva (ngaphandle kwaxa isetyenziswa ngeelaser ezinamandla apho oku kufuneka kubuyiselwe umva ukuze kupheliswe ukubakho kwenyani. gxila).

Iilensi ze-ZnSe zifaneleke ngokukodwa ukusetyenziswa kunye ne-CO2 yamandla aphezulu okanye i-CO2 lasers.Ukongezelela, banokubonelela ngokusasazwa okwaneleyo kummandla obonakalayo ukuvumela ukusetyenziswa kwe-beam yokulungelelaniswa okubonakalayo, nangona ukubonakaliswa ngasemva kunokuvakaliswa ngakumbi.IParalight Optics ibonelela ngeZinc Selenide (ZnSe) iiLensi zePlano-Concave (PCV) ezifumaneka nge-broadband AR coating elungiselelwe i-2 µm - 13 μm okanye i-4.5 - 7.5 μm okanye i-8 - 12 μm uluhlu lwe-spectral olufakwe kuzo zombini iindawo.Olu gquba lunciphisa kakhulu ukubonakala okuphezulu komphezulu we-substrate, ivelisa umndilili wosasazo olungaphezulu kwe-92% okanye i-97% kulo lonke uluhlu lokutyabeka lwe-AR.Jonga iiGrafu kwiireferensi zakho.

Iimbonakalo:

Izinto:

IZinc Selenide (ZnSe)

Indlela yoKutyabeka:

Ingagqunywanga okanye ngeAntireflection Coatings

Ubude bokuJonga:

Ifumaneka ukusuka -25.4 mm ukuya -200 mm

Usetyenziso:

Ilungele usetyenziso lweLaser ye-MIR ngenxa yokuFinyelelwa okuPhantsi

Iingcaciso eziqhelekileyo:

pro-enxulumene-ico — Umzobo weReferensi ye

ILens yePlano-Concave (PCV).

f: Ubude bokuJonga
f_b: Ubude bokujongwa ngasemva
R: Irediyasi yeCurvature
t_c: Ukutyeba embindini
t_e: Ukutyeba komda
H”: Inqwelo-moya eyiNqununu yoBuyela

Qaphela: Ubude obugxininise bumiselwa ukusuka kwinqwelo-moya eyintloko yangasemva, engahambelaniyo nobukhulu bomphetho.

Iiparamitha

Uluhlu kunye noNyamezelo

I-Substrate Material

IZinc Selenide (ZnSe)
Uhlobo

ILens yePlano-Convex (PCV).
Isalathiso seRefraction

2.403 @ 10.6 μm
Inombolo ka-Abbe (Vd)

Ayichazwa
I-Thermal Expansion Coefficient (CTE)

7.6x10^-6/℃ kwi-273K
Ukunyamezela kwe-Diameter

Precison: +0.00/-0.10mm |Ukuchaneka okuphezulu: + 0.00 / -0.02mm
Unyamezelo lokutyeba kwiziko

Precison: +/-0.10 mm |Ukuchaneka okuphezulu: +/-0.02 mm
Unyamezelo loBude obuJolisekileyo

+/-0.1%
Umgangatho womphezulu (Scratch-Dig)

Precison: 60-40 |Ukuchaneka okuphezulu: 40-20
Umphezulu oMcaba (icala lePlano)

λ/10
Amandla oMphezulu oSpherical (icala leConvex)

3 λ/4
i-Surface irregularity (iNcopho ukuya kwiNtlambo)

λ/4
Iziko

Umzobo:< 5 arcmin |Ukuchaneka okuphezulu:<30 arcsec
Umngxuma ocacileyo

I-80% ye-Diameter
Uluhlu lwe-AR Coating

2 µm - 13 μm / 4.5 - 7.5 μm / 8 - 12 μm
Ugqithiso phezu koLunge loKutyabeka (@ 0° AOI)

Tavg > 92% / 97% / 97%
IReflectance phezu koLunge loKutyabeka (@ 0° AOI)

Ravg< 3.5%
Yila ubude beWaveleng

10.6µm
Laser Umonakalo Threshold

5 J/cm2 (100 ns, 1 Hz, @10.6 µm)