The key to understanding complex contact lenses.

Based on the patented “Phase Shifting Schlieren” (PSS) technique, the NIMO TR1504 offers an innovative solution for the control of contact lenses. Through its advanced technology, the NIMO offers the highest resolution amongst all commercially available power-mapping instruments, providing valuable information from every camera pixel..

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Key charasteristics

  • Suitable for Rigid Gas Permeable (RGP) as well as soft lenses
  • Measures spherical, aspheric, toric and multifocal lenses in a few seconds
  • Live image of the lens, high-resolution modulation map
  • High-resolution power maps and power profiles
  • Automatic marks detection for torics (TLMD)
  • Wavefront analysis with 36 Zernike coefficients
  • Dynamic range -30D to +30D
  • Easy integration into automated production lines
  • One time calibration
  • Full customization program available
Key characteristics NIMO TR1504

Hardware specifications

Measurement principle Phase-shifting Schlieren in transmission mode
Field of view 15 × 15 mm²
Clear aperture Maximum 15 mm diameter
Wavelength 546 nm
Imaging device 1024 × 1024 pixels
Spatial resolution 18 × 18 µm² or 36 × 36 µm² when Binning
Absolute power range ± 40 D on 5 mm Ø and ± 30 D on 8 mm Ø
Repeatability / variance Better than 0.007 D (wet) / 0.05 D (wet)
External dimensions 215 × 250 × 850 mm³ (8.5 × 9.8 × 33.4 in³)

Software specifications

Measurement conditions Dry or wet (power conversion from back curvature, thickness and refractive index)
Spherical Sphere power, cylinder, prism, quality factor
Toric Sphere power, cylinder, axis, Prism, quality factor
Multifocal Radial power maps and profiles on circular/annular areas, base, addition, centre near (CN) or centre distance (CD)
Toric multifocal As for multifocal, plus cylinder and axis
Modes of operation Production batch (PB) which has limited access to options or single measurement (SM) which provides full access to all options
Data output, production batch (PB) Text file, one line per measurement, batch report, statistics
Data output, single measurement (SM) Right click saves images and power maps as .CSV or .BMP

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