Armstrong Optical - Radius of Curvature Measurement

visible & infrared
interferometers & accessories

thermal imaging
& thermography

non-contact 3D and
thickness measurement

systems for distance
& thickness measurement

optical test instruments

standard test charts
& custom designed reticles

optical components
& optomechanical assemblies

high precision motion
& control systems

high speed, multichannel,
self-calibrating streak cameras

microlens arrays
& micro-optical components & structures

High power laser beam delivery systems

Pre-owned optical test equipment for sale


Ophthalmic Metrology When developing optical test instruments for ophthalmology TRIOPTICS has relied on a broad experience in optical testing, optimization for mass production and in-house software development. All instruments are optimized for ophthalmic lenses and provide accurate and repeatable measuring results.

OptiSpheric® IOL
Characterization of intraocular lenses

Measurement of dioptric power and Modulation Transfer Function (MTF) of intraocular lenses

Measurement of monofocal, multifocal (refractive and diffractive), aspherical and toric lenses in air and in situ in compliance with ISO 11979

Additional measurement parameters: Radius of curvature, back focal length, effective focal length, relative transmission, through focus MTF

High accuracy of 0.1% to 0.2% on dioptric power, 2% on MTF

Measurement of single lenses with model eye or high volume production testing in air and in situ

High speed testing: 5 sec/lens for simultaneous dioptric power and MTF measurement

Ultra-accurate fast autofocus function

Click here for details on OptiSpheric® IOL

WaveMaster® IOL
Wavefront measurement of intraocular lenses

Real time wavefront measurement of intraocular lenses in air and in situ in compliance with ISO 11979

Measurement and analysis results: Dioptric power, aberrations, Zernike coefficients, power mapping, 2D Modulation Transfer Function (MTF), Effective Focal Length (EFL), Point Spread Function (PSF)

High accuracy (lambda/20) and dynamic range (1500 lambda) for wavefront measurement

Lens diameter 0.5 to 15 mm

Power range -100 to 100 D in model eye with model cornea, absolute accuracy 0.1 to 0.3%

Real time measurement (10 Hz) for wavefront, MTF and aberrations

Short measurement time of 5 sec for dioptric power

Click here for details on WaveMaster® IOL


µPhase® Measuring contact and intraocular lenses Interferometer for the surface profiling of contact and intraocular lenses, molding tools for ophthalmic lenses High resolution camera (1000x1000 pixels) Radius measurement Small footprint Click here for more details

ImageMaster® VISION
Imaging quality evaluation of ophthalmic glasses

Imaging Quality Analysis in terms of Modulation Transfer Function (MTF) of eye glasses

Further parameters: Dioptric power, through focus MTF, line spread function, phase transfer function, astigmatism

Analysis of the measurement results: MTF vs. Spatial Frequency, MTF vs. Object Angle, MTF vs. Defocus

Flexible design enables different measurement settings

±40° adjustable arms for on-axis and off-axis MTF measurement

Object distances between 30 cm and infinity conjugate

Simulation of the accommodation and the adaption of the human eye

User friendly software offering a variety of measurement and analyzing tools