OptiSpheric® - The Industries Standard for Lens Testing
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 the TRIOPTICS’s new generation of optical test equipment. There are many reasons for this confidence.
Key Features:
- Highest accuracy and reliability
- Accuracy directly traceable to international standards
- Comprehensive, reliable software
- Custom programming of test sequences
- Vast range of applications
- Ultra-accurate autofocus or manual focus
- Multi-wavelength capabilities
Applications:
OptiSpheric® is the industry’s most comprehensive equipment for optical testing. It provides fast and reliable test results of almost all optical parameters:
- Measurement of positive or negative Effective Focal Lengths (EFL)
- Measurement of the Modulation Transfer Function (MTF)
- Measurement of the Back Focal Length (BFL)
- Measurement of the Radius of Curvature (R)
- Measurement of the Flange Focal Length (FFL)
OptiSpheric® with large reticle changer for multi-wavelength measurement
OptiSpheric® Software
The advanced software is designed to work under Windows operating systems and fulfils the need of the optical industry for easy, intuitive operation. It offers a high level of speed and accuracy and provides consistent, reliable results.
The software module of OptiSpheric® is part of the TRIOPTICS concept of Integrated Optical Testing. Any need for additional measurement capabilities can be simply fulfilled by enabling software features from related products (e.g. Opti- Angle® for angle measurements, OptiCentric ® for measurement of Centration errors, etc…). This modular approach enables OptiSpheric ® to be configured or upgraded according to the operator’s requirements.
- Automated selection and positioning of the suitable reticle (target) for the current application
- 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
- Main functions can be controlled thanks to a dedicated mini-keyboard, so that even unskilled operators can provide reliable measurement results in production environment
- Data export to Excel compatible Format
- Simultaneous measurement of the EFL 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 shows the optical performance in one azimuth only. The pinhole based MTF measurement provides information over all azimuths directions of the lens and is ideal for real time alignment during assembly of objective lenses.
| Instrument | Lens Diameter | Free Aperture | EFL | Measuring Range BFL and Radius | MTF |
|---|---|---|---|---|---|
| OptiSpheric Manual Focusing, automated measurement | 3 mm ... 35 mm optional: 5 mm ... 75 mm | 28 mm | +5 mm … +250 mm -5 mm … -250 mm | ±5 mm … ±250 mm | absolute MTF-Test: 5 mm … 50 mm EFL |
| OptiSpheric Auto Focus 500 automated measurement | 3 mm ... 35 mm optional: 5 mm ... 75 mm | 28 mm | +5 mm … +450 mm -5 mm … -450 mm | ±5 mm … ±490 mm | absolute MTF-Test: 5 mm … 50 mm EFL |
| OptiSpheric Auto Focus 1000 automated measurement | 5 mm ... 75 mm optional: 3 mm ... 35 mm | 48 mm | +5 mm … +1000 mm -5 mm … -1000 mm | ±5 mm … ±490 mm | absolute MTF-Test: 5 mm … 50 mm EFL |
| OptiSpheric Auto Focus 1500 automated measurement | 5 mm ... 75 mm optional: 3 mm ... 35 mm | 48 mm | +5 mm … +1500 mm -5 mm … -1200 mm | ±5 mm … ±750 mm | absolute MTF-Test: 5 mm … 50 mm EFL |
| OptiSpheric Auto Focus 2000 automated measurement | 5 mm ... 75 mm optional: 3 mm ... 35 mm | 48 mm | +5 mm … +2000 mm -5 mm … -1500 mm | ±5 mm … ±1000 mm | absolute MTF-Test: 5 mm … 50 mm EFL |
| System Performance | EFL |
|---|---|
| Resolution: | 0.03 % ... 0.2% |
| Measurement Accuracy* | 5 mm ... 25 mm: 0.1 % ... 0.3 % 25 mm ... 500 mm: 0.03 % ... 0.1 % 500 mm ... 1000 mm: 0.05 % ... 0.3 % |
| Measurement Time | Manual focusing: 3 s ... 20 s Measurement time: mouse click AutoFocus: First measurement: 5 s ... 8 s Next measurements: 3 s ... 5 s |
| System Performance | MTF |
|---|---|
| Test mode | OnAxisMTF manual on automatic Autofocus depending on the model |
| Wavelength range | 400 nm ... 1000 nm |
| Spatial frequency | 0 lp/mm... 500 lp/mm higher frequencies available on request |
| MTF-measurement / Slit evaluation • Repeatability* • Accuracy* | 1 % 2 % |
| System Performance | BFL, FFL and Radius of curvature |
|---|---|
| Repeatability: | 0.02 % ... 0.2 % |
| Accuracy*: | 0.03 % ... 0.3 % |
| System Performance | Centration Errors (as an option) |
|---|---|
| Repeatability: | ±0.1 µm or ±1 arcsec |
| Accuracy*: | ±0.2 µm or ±2 arcsec |
| Measurement time: | 3 s ... 15 s |
| Measurement range: | ±1 mm… ±2000 mm |
| System Performance | Angle Measurement (as an option) |
|---|---|
| Resolution: | 0.01 arcsec |
| Repeatability*: | 0.2 arcsec |
| Accuracy*: | 1 arcsec |
* for OptiSpheric® without autofocus: the achieved accuracy and repeatability depends as well on the operator
Upgrades & Accessories
The OptiSpheric can be upgraded to measure lens centration. The upgrade contains a lens rotation device and the OptiCentric® Software. Further information about lens centration measurement in OptiCentric®.
OptiAngle Upgrade
This upgrade gives the OptiSpheric the possibility to measure plane optic wedges.
Accessories:
- Reticles
- Further head lenses
- Reference lenses
- Main Function mini-keyboard
- Different fiters for multiwavelegnths measurements
