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| METROLOGY |
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MTF |
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Our MTF Flexi-Test bench can measure the
optical performance of lenses at one infinite conjugate,
two finite conjugates and also at afocal systems. The
system uses a modular construction, and can be adapted
and expanded to meet different test requirements and
future needs.
Measures:
* Line Spread Function (LSF)
* Modulation Transfer Function (MTF)
* Phase Transfer Function (PTF)
* Strehl Ratio
* Effective Focal Length (EFL)
* Back Focal Length (BFL)
* Distortion and Field Curvature
Features:
* Highly accurate (+/-2%) and repeatable (+/- 1%)
* Real-time LSF, MTF, PTF, and EFL
* Test lenses up to 75 mm diameter
* Digital Firewire (IEEE 1394) CCD camera
* Motorised focus stage for automatic focussing
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Interferometer |
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We have many types of interferometeres,
include Zygo, Optech and MINI FIZ. They are practical
for production testing and flexible for the demanding
varied requirements of the customers. Like flatness,
sphericity or transmitted wavefront etc.
Application Specific Modules:
* Multiple part analysis
* Radius of Curvature measurement
* Corner cube measurements
* Two Sphere Test
* Three Flat Test
* Prism measurements
* Relative angle and wedge measurements
* Polished sample homogeneity
* Fourier Transform PSI (with MST model)
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