µPhase® SPHERO UP - The Perfect Interferometer for Measuring Spherical Surfaces in Production
These extremely compact and cost effective turnkey interferometers are ideally suited for production. With their small footprint they can be positioned next to the production machine and samples are measured directly after machining. The μPhase® SPHERO UP measure spherical samples upwards, the sample is positioned on the top of the instrument.
Interferometric measurement of a spherical lens
Key Features:
- For measuring spherical samples
- For diameters up to 50mm
- Small footprint
- Vibration insensitive
- No re-alignment necessary when measuring series
- Intuitive and easy handling enables usage by unskilled personnel
µShapeTM Interferometer Software
Each µPhase® interferometer is supplied with an application-focused µShape™ software version. It is used for measuring the topography of flat, spherical, cylindrical, toric and aspherical surfaces or wave fronts and suitable for production, laboratory and research. Add-on modules make it possible to adapt the software to customer specific demands. These modules can be added at any time even after purchase of the µPhase® system.
The software controls and displays the measurement results, stores and documents all measurement raw data and ensures maximum transparency and traceability.
With its clear and menu-driven user interface, μShape™ perfectly deals with the variety of measurement requirements and provides several modules which expand the capabilities of μShape™.
µShape Interferometer Software
Advantages:
- Different user levels with different access rights
- Comprehensive context-sensitive online help
- Easily pre-configured templates for any kind of measuring tasks and analyses
- Graphic windows can be stored in several graphic formats (bmp, jpg…)
- Export of individual parameters or of selected data fields as text, binary or other common file formats (e.g. QED, Zygo XYZ, DigitalSurf) for external processing
- The measurement results are presented in parameters or graphically as a cross section, in 2D or 3D
- Measurement protocol shows the results at a glance and can be widely configured including the customers logo
- Shortcuts for the most used program functions
- Various program modes allow the separate visualization of calibration and measurement processes and their parameters with an integrated live camera image
- Storage of all parameters and settings, including window size and position, with sample data in μShape™ program file
- Continuously improvements with regular updates – offered on request or as software flat rate
Multiple apertures add-on
Add-On Modules:
- Analysis of aspherical surfaces in spherical or CGH setups
- Measuring multiple apertures in one shot, e.g. on polishing heads
- Statistical analysis of multiple sub-apertures at the same time
- Prism and wedge measurement and analysis
- Considering known sample deviations, e.g. deviations caused by the optical design
- Analysis of the tool offset of lathe machines
- Static fringe analysis for fast measurements in instable environments
Software Add-Ons:
Asphere analysis
The Asphere module features analyzing rotational symmetric strong aspheres in an aspherical setup using a computer-generated hologram (CGH) as well as weaker aspheres in spherical setups. The asphere description can be entered and stored, various formats are supported. Residual adjustment errors as well as systematic setup errors are removed by an aspheric fit.
Cylinder analysis
The Cylinder module analyzes cylindrical samples in a cylindrical setup (using CGH). Residual adjustment errors are removed by a cylinder fit.
External Interface
The External Interface Module allows communication between the µShape and external software like for example LabVIEW™.
Fiber Connector
The Fiber Connector add-on offers the analysis of fiber connector end faces of type PC (physical contact) according to international IEC convention. The main parameters are measured with one measurement only and displayed with optional pass/fail analysis.
Homogeneity
In this program mode the two parts influencing the optical path through a test sample, i.e. the homogeneity (refractive index variation) and the thickness variation, can be determined.
Lateral Stitching
With the help of the external control and analysis program µStitch your interferometer can measure larger flat or spherical samples in sub-apertures and stitch them together to get the topography information of the complete surface. Interface to lateral positioning systems on request.
Math Mode
In this program mode different data maps can be analyzed combined by mathematics calculation to an additional result map. Matrix operations are not possible.
Multiple Apertures analysis
This module enables the common measurement and analysis of non-connected sub-apertures in one field of view, e.g. when measuring parts fixed on a polishing head.
Multiple Statistics analysis
When the sample specification defines different limits for different sub-areas of the same sample the MultiStat module allows to calculate it all in one measurement and lists the results for each area separately.
Prism Analysis
The angle errors of 90° and corner cube prisms as well as the angle of wedges can be measured interferometrically, by analyzing the observed fringe patterns due to the angle deviation from the target angle 90° resp. 0°.
Sample Normal Data
Sample normal (SND) data allows to specify and consider additional errors of the test sample, e.g. design-related nominal values
Tool offset
The tool offset calculation is implemented in the µShape software as method to compensate alignment errors of turning machines.
Wafer
The Wafer analysis allows you to subclassify a circular aperture in rectangular areas of arbitrary size and characterize each sub area by the arithmetic mean resp. SFQR (Site Front-side Least Squares Focal Plane Range) value.
Torus analysis
With help of the Torus software add-on toric samples are analyzed in a toric or spherical setup. Residual adjustment errors are removed by a torus fit. Very useful for measuring contact lenses and molds.
Wedge analysis
The wedge analysis determines the wedge angle of flat mirrors and the optical wedge of flat transmitting plates in one shot using an auxiliary mirror behind the object to under test.
Customized Software
TRIOPTICS develops all interferometry software features in-house and offers custom-specific measurement procedures, calculation of company-specific parameters as well as data displays and outputs for special needs. Contact your local µPhase® partner and describe your requirements.
| µPhase® SPHERO UP | |
|---|---|
| Sample type | Spherical |
| Sample size (measuring range) | Max. Ø50 mm Sample size depending on measurement objective (Measurement objective as link to the overview from the brochure page 16 + 17) |
| Max. sample weight | 0.5 kg (depending on version) |
| Alignment tools | Manual XY adjustment, tilt table and z-focusing (a few mm) |
| Test range radii measurement | Typically 10 ... 150 mm Relative radius measurement compared to a radius normal, range depends on test objective and holder |
Increase the Range of Applications of Your µPhase® System
The μPhase® systems are modular and their application range can be expanded by adding software and accessories. All options listed here can also be purchased as added extras at a later date.
µPhase® 500 High Resolution Upgrade:
The camera resolution of the μPhase® 500 can be increased to 1000 x 1000 pixels on purchase or at a later date.
Accessories:
Measurement Objectives
More information about µLens
Various test lenses
All basic μPhase devices and most plane objectives feature a bayonet connection which enables quick and easy exchange between different system configurations. This means the application range of the interferometer can be expanded after purchase.
Flat and Spherical Reference Surfaces
Available as uncoated or mirrored surfaces in various diameters for optimum contrast and adaptation to the test objective
Analysis Dongle
For offline analysis and documentation at office workstations without direct access to the μPhase® hardware
