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  • DCV-Lenses-ZnSe-1

Zinc Selenide (ZnSe)
Bi-Concave Lenses

Bi-concave kana Double-concave (DCV) lenses ine negative focal kureba. Aya malenzi anopatsanuka anogona kushandiswa kuchinjisa danda rakakomberedzwa kuenda kutarisiro chaiyo uye anowanzo shandiswa muGarireya-mhando danda rekuwedzera. Iwo zvakare anowanzo shandiswa kupatsanura kana kuwedzera kusiyanisa kwedanda rinotenderera. Mune optical masisitimu, zvakajairika kuti vaongorori vasarudze maziso avo nekungwarira kuitira kuti mabhenefiti akaunzwa neakanaka- uye asina kunaka-akatarisana-kureba lenzi anenge akanzura. Vamwe vanoshandisa malenzi aya ari maviri maviri kuti vawedzere hurefu hwekutarisa kweiyo inoshandura lenzi senge negative meniscus lens.

Paunenge uchifunga pakati pe plano-concave lens uye bi-concave lens, izvo zvese zvinokonzeresa kuti chiitiko chiedza chisiyane, zvinowanzonyanya kukodzera kusarudza bi-concave lens kana yakakwana conjugate ratio (chinhambwe chakakamurwa nemufananidzo chinhambwe) iri pedyo ne 1. Kana kukwidziridzwa kunodiwa kunenge kuri kushoma pane 0.2 kana kupfuura 5, tsika ndeyekusarudza plano-concave lenzi pachinzvimbo.

ZnSe lenzi dzakanyanya kukodzera kushandiswa nepamusoro-simba CO2 lasers. Paralight Optics inopa Zinc Selenide (ZnSe) Bi-Concave kana Double-Concave (DCV) Lenses inowanika nebroadband AR coating yakagadziridzwa ye8 - 12 μm spectral renji yakaiswa panzvimbo mbiri. Uku kupfekedza kunoderedza zvakanyanya kutarisisa kwepamusoro kweiyo substrate, ichipa avhareji yekutapurirana inodarika 97% pairi rese AR coating renji. Kuti uwane rumwe ruzivo nezve machira, ndapota tarisa anotevera maGrafu kune ako mareferensi.

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Features:

Material:

Zinc Selenide (ZnSe)

Coating Options:

Inowanikwa isina Kuvharwa kana neAntireflection Coatings

Focal Lengths:

Inowanikwa kubva -25.4mm kusvika -200 mm

Applications:

Yakanakira CO2 Laser Zvishandiso Nekuda kweKuderera Kunyura Coefficient

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Zvakajairwa Zvinodiwa:

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Reference Drawing ye

Kaviri-Concave (DCV) Lens

f: Kureba kwakatarisana
fb: Back Focal Length
ff: Front Focal Length
R: Radius yeCurvature
tc: Kukora Kwepakati
te: Mupendero Hukobvu
H”: Kudzokera Principal Ndege

Ongorora: Iyo yakatarisa kureba inotarwa kubva kumashure hombe ndege, iyo isingaite mutsara nekukora kwemupendero.

 

Parameters

Ranges & Tolerances

  • Substrate Material

    Laser-Giredhi Zinc Selenide (ZnSe)

  • Type

    Kaviri-Convave (DCV) Lenzi

  • Index yeRefraction

    2.403 @ 10.6μm

  • Abbe Number (Vd)

    Hazvina kutsanangurwa

  • Thermal Expansion Coefficient (CTE)

    7.1x10-6/℃ pa273K

  • Diameter Tolerance

    Presicion: +0.00/-0.10mm | High Precison: +0.00/-0.02mm

  • Makobvu Tolerance

    Presicion: +/-0.10 mm | High Precison: +/-0.02 mm

  • Focal Length Tolerance

    +/- 1%

  • Hunhu hwepamusoro (scratch-dig)

    Presicion: 60-40 | High Precison: 40-20

  • Spherical Surface Power

    3 λ/4

  • Surface Irregularity (Peak to Valley)

    λ/4 @633 nm

  • Center

    Precison:< 3 arcmin | High Precision<30 arcsec

  • Clear Aperture

    80% yeDyamita

  • AR Coating Range

    8 - 12 μm

  • Reflectance over Coating Range (@ 0° AOI)

    Ravg<1.0%, Rabs<2.0%

  • Kufambisa pamusoro peCoating Range (@ 0° AOI)

    Tavg > 97%, Tabs > 92%

  • Dhizaini Wavelength

    10.6 μm

  • Laser Kukuvadza Threshold

    5 J/cm2(100 ns, 1 Hz, @10.6μm)

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Magirafu

♦ Transmission curve ye5 mm gobvu, isina kuvharwa ZnSe substrate: high transmission kubva 0.16 kusvika 16 μm
♦ Transmission curve ye5 mm AR-coated ZnSe substrate: Tavg > 97% pamusoro pe8 - 12 μm

chigadzirwa-mutsara-img

Transmission Curve ye5 mm Gobvu AR-yakavharidzirwa (8 µm - 12 μm) ZnSe Substrate pa0° AOI

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