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  • Hastings-Mounted-Positive-Achromatic-Lenses-1

Hastings Cemented
Achromatic triplets

Achromatic lo ntsiab muag yog ib qho kev xaiv zoo rau kev xav tau qhov siab tshaj plaws aberration tswj, vim tias lawv muaj kev ua tau zoo dua qub dua li cov singlets spherical. Cemented achromatic doublets yog txaus rau feem ntau daim ntaub ntawv ntawm infinite conjugates, thiab cemented doublet khub yog zoo tagnrho rau finite conjugates. Txawm li cas los xij, Achromatic triplets muab kev ua tau zoo dua li achromatic doublets, raws li qhov tseeb, achromatic triplet yog lub lens yooj yim tshaj plaws uas kho tag nrho cov chromatic aberrations thiab xa cov kev ua tau zoo ntawm axis thiab off-axis.

Ib qho achromatic triplets muaj qhov qis-index crown nruab nrab cov ntsiab lus cemented ntawm ob qhov zoo tib yam high-index flint txheej txheej. Cov triplets no muaj peev xwm kho tau ob qho tib si axial thiab lateral chromatic aberration, thiab lawv cov qauv tsim muaj kev ua tau zoo dua qub rau cov cemented doublets.

Hastings achromatic triplets yog tsim los muab ib qho kev sib txuas tsis kawg thiab muaj txiaj ntsig zoo rau kev tsom cov kab sib dhos thiab kev nthuav dav. Hauv qhov sib piv, Steinheil achromatic triplets yog tsim los muab qhov sib piv sib luag thiab 1: 1 duab. Paralight Optics muab ob qho tib si Steinheil thiab Hastings achromatic triplets nrog cov tshuaj tiv thaiv kev cuam tshuam rau 400-700 nm wavelength ntau yam, thov xyuas cov duab hauv qab no rau koj cov ntaub ntawv siv.

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Nta:

AR Txheej:

AR Coated rau 400 - 700 nm Range (Ravg<0.5%)

Cov txiaj ntsig:

Zoo tagnrho rau kev them nyiaj ntawm Lateral thiab Axial Chromatic Aberrations

Optical Performance:

Zoo On-Axis thiab Off-Axis Performance

Daim ntawv thov:

Optimized rau Infinite Conjugate Ratios

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Common Specifications:

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Reference Drawing rau

Unmounted Hastings Achromatic Lens

f: Focal Length
WD: Ua haujlwm nrug
R: Radius ntawm Curvature
tc: Center Thickness
te: Ntug Thickness
H”: Rov Qab Tus Thawj Coj Dav Hlau

Nco tseg: Lub focal ntev yog txiav txim siab los ntawm lub dav hlau rov qab, uas tsis sib haum nrog ib lub dav hlau lub cev hauv lub lens.

 

Tsis muaj

Ntau Yam & Tolerances

  • Cov khoom siv substrate

    Crown thiab Flint iav hom

  • Hom

    Hastings achromatic triplet

  • Lens Diameter

    6-25 hli

  • Lens Diameter Tolerance

    +0.00/-0.10 hli

  • Center Thickness kam rau ua

    +/- 0.2 hli

  • Focal Length kam rau ua

    +/- 2%

  • Surface Quality (Scratch - Dig)

    60-40

  • Deg Irregularity (Peak rau Valley)

    L / 2 ntawm 633 nm

  • Qhov chaw

    <3 arcmin

  • Clear Aperture

    ≥ 90% ntawm txoj kab uas hla

  • AR Txheej

    1/4 yoj MgF2@550nm

  • Tsim Wavelengths

    5 87,6nm

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Cov duab

Daim duab theoretical no qhia txog qhov feem pua ​​​​ntawm AR txheej raws li kev ua haujlwm ntawm wavelength rau kev siv.
♦ Reflectance Curve ntawm Achromatic Triplet VIS AR Txheej

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