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  • ZnSe Negative-Meniscus-Lens

Zinc Selenide
Negative Meniscus Lenses

Meniscus lenses anonyanya kushandiswa kutarisa kune diki diki saizi kana collimation application. Ivo vanopa kuita kwakanyanya kwepamusoro nekudzikisa zvakanyanya spherical aberrations. Negative meniscus (convex-concave) lenses , iyo ine convex pamusoro uye concave pamusoro uye yakatetepa pakati kupfuura kumacheto & inokonzeresa kuti mwenje mwenje isiyane, akagadzirirwa kuderedza spherical aberration mune optical system.

Kana ichishandiswa kupatsanura mwenje mumatanda ekuwedzera maapplication, iyo concave surface inofanirwa kutarisana nedanda kuti ideredze kutenderera kwe spherical. Kana yakashandiswa pamwe chete neimwe lenzi, iyo negative meniscus lens inowedzera kureba kwekutarisa uye kuderedza nhamba yekuvhura (NA) yehurongwa.

ZnSe lenzi dzakanakira CO2 lasers application nekuda kweakanakisa ekufungidzira maitiro uye yakakwirira kuramba kuvhunduka kwekupisa. Paralight Optics inopa Zinc Selenide (ZnSe) negative meniscus lenses, malenzi aya anoderedza NA ye optical system uye anowanikwa nebroadband anti-reflection coating, iyo inogadzirisirwa iyo 8 µm kusvika 12 μm spectral range yakaiswa pane ese ari maviri uye goho. avhareji yekufambisa inopfuura 97% pamusoro peiyo AR coating renji.

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Features:

Material:

Zinc Selenide (ZnSe)

Coating Option:

Asina kuvharwa kana neAntireflection Coatings

Focal Lengths:

Inowanikwa kubva -40 kusvika -1000 mm

Application:

Kuderedza iyo NA yeOptical System

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Zvakajairwa Zvinodiwa:

pro-related-ico

Reference Drawing ye

Negative Meniscus Lens

f: Kureba kwakatarisana
fb: Back 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

    Negative Meniscus Lens

  • Index yeRefraction

    2.403 @10.6 µm

  • Abbe Number (Vd)

    Hazvina kutsanangurwa

  • Thermal Expansion Coefficient (CTE)

    7.1x10-6/℃ pa273K

  • Diameter Tolerance

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

  • Pakati Makobvu Kushivirira

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

  • Focal Length Tolerance

    +/- 1%

  • Hunhu hwepamusoro (Scratch-Dig)

    Precison: 60-40 | Kunyatsojeka: 40-20

  • Spherical Surface Power

    3 λ/4

  • Surface Irregularity (Peak to Valley)

    λ/4

  • 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<1.5%

  • Kufambisa pamusoro peCoating Range (@ 0° AOI)

    Tavg > 97%

  • Dhizaini Wavelength

    10.6 μm

  • Laser Damage Threshold (Yakaputswa)

    5 J/cm2(100 ns, 1 Hz, @10.6μm)

magirafu-img

Magirafu

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

chigadzirwa-mutsara-img

Transmission Curve ye5mm AR-Coated (8 µm - 12 μm) ZnSe Window

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