IZinc Selenide (ZnSe)
IiLensi zeMeniscus ezilungileyo

Iilensi zeMeniscus zisetyenziselwa ikakhulu ukujolisa kubungakanani bamabala amancinci okanye ukudibana kwezicelo.Babonelela ngokusebenza okuphezulu kakhulu ngokunciphisa kakhulu ukuphambuka kwe-spherical.Iilensi ze-meniscus ezilungileyo (iconvex-concave), eziqulathe umphezulu weconvex kunye nomphezulu oconcave kwaye zityebe embindini kunasencamini kwaye zibangele imitha yokukhanya ukuba ihlangane, ziyilelwe ukunciphisa ukuphaphatheka okungqukuva kwiinkqubo zokukhanya.Xa isetyenziselwa ukugqalisela umqadi odityanisiweyo, icala leconvex lensi kufuneka lijongane nomthombo ukuze kuncitshiswe ukuphoxeka okungqukuva.Xa isetyenziswe ngokudibeneyo nenye i-lens, i-meniscus lens ekhangayo iyakwenza mfutshane ubude bogxininiso kwaye inyuse i-aperture yamanani (NA) yenkqubo ngaphandle kokwazisa i-spherical aberration ebalulekileyo.Ekubeni i-meniscus lens ekhangayo ine-radius enkulu ye-curvature kwicala le-concave ye-lens kunecala le-convex, imifanekiso yokwenyani inokwakheka.

Iilensi ze-ZnSe zifaneleke ngokukodwa ukusetyenziswa kunye ne-CO2 lasers yamandla aphezulu.Ngenxa yesalathiso se-refractive esiphezulu se-ZnSe, sinokunikezela ngeyona ngqukuva uyilo lwefomu ye-ZnSe, oluyilo lwe-meniscus olulungileyo.Ezi lens zibangela ukuphambuka okuncinci, ubungakanani bamabala, kunye neempazamo zangaphambili ezithelekiseka neyona lens iyiyo eyenziwe zezinye izinto.

IParalight Optics ibonelela ngeZinc Selenide (ZnSe) iiLensi eziPositive Meniscus ezifumaneka ngebroadband AR yokugquma elungiselelwe i-8 µm ukuya kwi-12 μm uluhlu lokubonwayo olufakwe kuyo yomibini imiphezulu.Olu gquba lunciphisa kakhulu ukubonakala okuphezulu komphezulu we-substrate, inika usasazo oluyi-avareji ngaphezulu kwe-97% kulo lonke uluhlu lwe-AR yokwambathisa.

Iimbonakalo:

Izinto:

IZinc Selenide (ZnSe)

Indlela yoKutyabeka:

I-Antireflection Coatings okanye i-Antireflection Coatings ye-8 - 12 μm

Ubude bokuJonga:

Ifumaneka ukusuka kwi-15 ukuya kwi-200 mm

Isicelo:

Ukonyusa i-NA yeNkqubo yokubona

Iingcaciso eziqhelekileyo:

pro-enxulumene-ico — Umzobo weReferensi ye

Ilensi yeMeniscus entle

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

I-Laser-Grade Zinc Selenide (ZnSe)
Uhlobo

Ilensi yeMeniscus entle
Isalathiso sokuRefraction (nd)

2.403
Inombolo ka-Abbe (Vd)

Ayichazwanga
I-Thermal Expansion Coefficient (CTE)

7.1 x 10^-6/℃
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

+/- 1%
Umgangatho womphezulu (Scratch-Dig)

Precison: 60-40 |Ukuchaneka okuphezulu: 40-20
Amandla oMphezulu weSpherical

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

λ/4
Iziko

Umzobo:< 3 arcmin |Ukuchaneka okuphezulu:< 30 arcsec
Umngxuma ocacileyo

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

8 - 12 μm
IReflectance phezu koLunge loKutyabeka (@ 0° AOI)

Ravg< 1.0%, Rabs< 2.0%
Ugqithiso phezu koLunge loKutyabeka (@ 0° AOI)

Tavg > 97%, Tabs > 92%
Yila ubude beWaveleng

10.6 μm
ILaser Umonakalo weLaser (Ityibiliziwe)

5 J/cm²(100 ns, 1 Hz, @ 10.6μm)