• The standard lens of the laser interferometer is a standard lens for measuring the surface type, featuring high precision and high stability.

    Standard?lens?parameters for ZERNIKE-D30 series

    Standard?lens?parameters ?spherical parameters (mm)
    Maximum radius of curvature(r) Maximum effective caliber(d)
    F# R0 D0 concave Convex concave Convex
    (mm) (mm)
    0.7 9.367 12.8 110 8 1.3r 10
    1 17.638 16.6 102 15 0.9r 14
    1.5 30 19.5 90 28 0.6r 17
    2 40 19.7 80 38 0.5r 17
    3 65.879 22.7 60 57 0.4r 20
    5 102.8 23.54 17 56 0.2r 21

    ?

    Standard?lens?parameters for ZERNIKE-D60 series

    Standard?lens?parameters spherical parameters (mm)
    Maximum radius of curvature(r) Maximum effective caliber(d)
    F# R0 D0 concave Convex concave Convex
    (mm) (mm)
    0.7 23 30.8 497 20 1.3r 28
    1 44.641 43 475 42 r 41
    1.5 72.61 48.1 447 70 0.7r 46
    2 105 52.6 415 102 0.5r 50
    2.8 150 53.6 370 147 0.4r 51
    5 278 55.9 242 275 0.2r 53

    ?

    ?

    F#

    Standard surface radius

    mm

    Measuring range

    Convex

    Measuring range

    Concave

    ?the largest diameter

    Convex

    the largest diameter

    Concave

    F0.7

    23

    3~23

    4~97

    32

    68

    F1.0

    43

    5~43

    1~200

    40

    68

    F1.4

    65

    9~65

    1~180

    46

    68

    F2.0

    105

    16~105

    1~150

    53

    68

    F2.8

    150

    30~150

    1~110

    53

    68

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