TRIOPTICS GMBH ■ OPTISCHE INSTRUMENTE

UNIVERSAL OPTICAL TEST STATION OptiSpheric® The Universal Test Station for Lenses and Optical Systems OptiSpheric® is the Industry’s Standard for Lens Testing and is used worldwide to completely measure and qualify optical components and systems. The world’s largest laboratories and the major optical manufacturers are trusting to the TRIOPTICS’s new generation of optical test equipment. There are many reasons for this confidence: • highest accuracy and reliability • accuracy directly traceable to international standards • comprehensive, reliable software • custom programming of test sequences...

UNIVERSAL OPTICAL TEST STATION All aspects of the data acquisition starting with the powerful Auto Focus system, data calculation, calibration and the display of the data are under software control and fully automated. OptiSpheric® is the latest family member of OptiTest® – the industry’s most comprehensive equipment line for Integrated Optical Testing. It provides fast and reliable test results of almost all optical parameters: The operation is simple: once the test parameters for one lens are defined, these can be saved to a set up file and used for further measurements. The measured data are...

THIOPTICS GMBH ■ OPTISCHE INSTRUMENTS OptiSpheric® with mechanical focusing stage and accessories for Centration measurement The Measuring Head is basically an optical sensor including an autocollimating devi- ce, a high resolution CCD-Camera and appropriate illuminated targets. The illumi- nation unit behind the reticle is adapted to the reflecting properties of the sample, The high resolution CCD-camera is moun- ted so that the focal plane of the measu- ring head precisely corresponds with the CCD-camera chip. The CCD-camera is connected to a frame grabber mounted

The Stand can be either a motorized stage featuring microstep operation (OptiSpheric® Auto Focus) or a mechanical precision stage with two travel mechanisms: a coMesuring Head with arse travel and a multi-lens sample holder coaxial ultra-fine focusing mechanism (OptiSpheric®). The ultra-fine mechanism is especially useful in applications where a smooth, precise motion of optical instruments or subsystems are required. The bottom body of the stand contains the collimator with manual or fully automated reticle changer and an adjustable mirror for beam deviation. The Collimator is equipped with...

OPERATING PRINCIPLE The measurement of high volume components (e.g. molded lenses, IOL’s, micro lens arrays, etc.) in production environment requires a customized multi-lens sample holder (a multi-lens tray). surement. For applications where the alignment and assembly of optical systems is important, a rotary air bearing stage is recommended. Operating Principle Effective Focal Length A highly corrected collimator projects the image of a double slit to infinity. The parallel ray bundles enter the lens under test parallel to the optical axis and emerge from the lens as a convergent beam intersecting...

OPERATING PRINCIPLE on a requested spatial frequency or a bundle of spatial frequencies) and determines objectively (not operator dependent), accurately and with highest repeatability the position of the best focal plane. The software controlled Auto Focus of OptiSpheric® allows reliable finding of the focal plane even when measuring samples with poor imaging quality. In the best focus position the size of the projected collimator target is precisely determined and thus the effective focal length (EFL) of the lens under test. OptiSpheric® is measuring the reticle image directly on the CCDchip...

OPERATING PRINCIPLE The measuring process normally includes a collimator projecting a target with a suitable pattern. The sample under test collects the target and transfers it in its own image plane. A high performance relay lens picks up this image and focuses onto the high resolution CCD-camera chip. The intensity profile of the target is scanned electronically in both the radial and tangential direction. The data is collected and, by using Fourier Transform techniques, the MTF is calculated and displayed on the PC-monitor in real-time. The software calculates and displays the MTF value at...

OPERATING PRINCIPLE In case of the instruments equipped with manual focusing, a software feature displaying the contrast as a colored plot is assisting the operator. The BFL is determined as the distance between the surface vertex (step 1) and the lens focal plane (step 2). This distance can be measured in different ways: directly with the Auto Focus device or by means of a linear encoder or digital linear scale which is attached to the focusing stage or travel mechanism of the measuring head. Radius of curvature The measurement of radii of curvature is similar with the BFL measurement. Focusing...

THI0P7ICS GMBH ■ OPTISCHE INSTRUMENTS sing mechanism responds optimally to the basic requirements of optical measure- ment: quick positioning of the measuring head for efficient testing work and smooth However, the accuracy of the manual OptiSpheric® is lower than of OptiSpheric® Auto Focus and the operator's influence on the measurement results is considerab- The advanced software is designed to work under Windows operating systems and fulfils the need of the optical shop for easy, intuitive operation. It offers a high level of speed and accuracy and pro- vides consistent, reliable results....

TRIOPTICS GMBH ■ OPTISCHE INSTRUMENTE OptiSpheric®-Software provides unique features in order to optimize the measure- ment process: and MTF using special target pattern and specific software calculation • Alternative MTF measurement using a slit or a pinhole as a target. While the slit based MTF measurement is accurate, it • Set up files with the optimized process parameters with password protected access for operator and supervisor • Script tools for custom programming and analysis -ideal for R&D laboratories • Transfer of the main functions to a dedi- cated keyboard, so that even unskilled...