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  • Steinheil-Mounted-Negative-Achromatic-Lenses-1

Steinheil Cemented
Achromatic triplets

Lub focal point qhov twg lub teeb rays dhau los ntawm qhov chaw ntawm lub lens converge txawv me ntsis ntawm lub focal point qhov twg lub teeb rays dhau los ntawm cov npoo ntawm lub lens converge, qhov no yog hu ua spherical aberration; Thaum lub teeb rays dhau los ntawm lub lens convex, lub focal point rau lub teeb liab uas muaj ib tug ntev wavelength nyob deb tshaj lub focal point rau xiav lub teeb uas muaj ib tug luv luv wavelength, raws li cov xim tshwm sim los ntshav, qhov no yog hu ua chromatic aberration. Txij li thaum cov kev taw qhia nyob rau hauv uas spherical aberration tshwm sim nyob rau hauv lub convex lens yog opposite rau ib tug concave lens, los ntawm ib tug ua ke ntawm ob los yog ntau tshaj lo ntsiab muag teeb rays yuav ua rau converge mus rau ib tug taw tes, qhov no yog hu ua aberration kho. Achromatic lo ntsiab muag raug rau ob qho tib si chromatic thiab spherical aberrations. Peb cov qauv thiab kev cai achromats tau tsim thiab tsim los ua kom tau raws li qhov kev ua siab ntev tshaj plaws uas yuav tsum tau muaj nyob rau niaj hnub no cov kev ua haujlwm siab laser, electro-optical thiab imaging systems.

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. Steinheil triplets tshwj xeeb yog tsim los rau 1: 1 conjugation, lawv ua tau zoo rau conjugate ratios mus txog 5. Cov lo ntsiab muag no ua zoo relay optics rau ob qho tib si on- thiab off-axis daim ntawv thov thiab feem ntau siv raws li eyepieces.

Paralight Optics muaj Steinheil achromatic triplets nrog MgF2 ib txheej los tiv thaiv kev cuam tshuam rau 400-700 nm wavelength ntau ntawm ob qho tib si sab nraud, thov xyuas cov duab hauv qab no rau koj cov ntaub ntawv siv. Peb lub lens tsim yog lub computer optimized kom paub tseeb tias chromatic thiab spherical aberrations ib txhij txo. Lenses yog tsim rau siv nyob rau hauv feem ntau cov kev daws teeb meem imaging systems thiab txhua daim ntawv thov qhov twg spherical thiab chromatic aberrations yuav tsum tau txo.

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Nta:

AR Txheej:

1/4 yoj MgF2 @ 550nm

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 Finite Conjugate Ratio

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Common Specifications:

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Reference Drawing rau

Unmounted Steinheil Triplets 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

    Steinheil achromatic triplet yog ib qho ntawm cov kab mob

  • 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

    3-5 hli

  • 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 (zoo rau 400 - 700 nm) rau kev siv.
♦ Reflectance Curve ntawm Achromatic Triplet VIS AR Txheej

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