UMA / PRODUCTS / Lens MTF Tester
DSC-E3VF
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DSC-E3VF
Lens MTF Tester
To support High Zoom Ratio (30X) varifocal lens measurement, due to the consideration of the motor driving factor, the single-lens horizontal inspection mechanism is adopted.
APPLICATION
High Zoom Ratio (30X) varifocal lens
FEATURES
✔ 30X varifocal lens inspection.
✔ Not only be able to test zoom fixed lens but also support three (W/M/T) or above stages vary focus test with motor driver control.
✔ DSC-E3VF supports diagonal FOV 1.5˚ ~ 70˚ measurement.
✔ The best imaging quality can be performed through image planes balance and optimization between Wide and Tele modes in the AA simulation process.
Optional Upgrade
✔ For Wide, Middle and Tele mode measurements, there are 10~ 18 image regions combinations for customer to select or upgrade in the future.
Lens MTF Tester
To support High Zoom Ratio (30X) varifocal lens measurement, due to the consideration of the motor driving factor, the single-lens horizontal inspection mechanism is adopted.
APPLICATION
High Zoom Ratio (30X) varifocal lens
FEATURES
✔ 30X varifocal lens inspection.
✔ Not only be able to test zoom fixed lens but also support three (W/M/T) or above stages vary focus test with motor driver control.
✔ DSC-E3VF supports diagonal FOV 1.5˚ ~ 70˚ measurement.
✔ The best imaging quality can be performed through image planes balance and optimization between Wide and Tele modes in the AA simulation process.
Optional Upgrade
✔ For Wide, Middle and Tele mode measurements, there are 10~ 18 image regions combinations for customer to select or upgrade in the future.
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FUNCTIONS
| MTF | |
| DOF | Depth of Focus |
| FBFL | Flange Back Focal Length |
| EFL | |
| Through Focus | |
| Focus Tilt | Curvature Height |
| Image Plane | Tilt Angle & Azimuth |
| Image plane Correction | |
| S.F.R. | Spatial Frequency Response |
| Limit Resolution(lp/mm) |
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SPECIFICATIONS
| Machine Dimensions | 150cm *80cm *300cm |
| Machine Weight | 350 Kg |
| Power Supply | AC220V/20A |
| IPC Operation System | Microsoft Windows 70 |
| Normally Average Test Time (without load & unload) |
Including Wide, Middle and Tele mode: ~40sec Note. The actual time depends on lens sample motor driving speed |
| MTF Repeatability (excluding load & unload) |
Reticle scanning at a certain Zoom Position Delta MTF ：(≤ 180lp/mm) On axis ≤ 1.5 ；off axis ≤ 2.5 Note. It is hard to evaluate the machine when using lens to do MTF scanning because the major fluctuation factor is the sample lens AF movement stability |
| Maximum Measuring Frequency | 300lp/mm |
| Limited FBL | > -3.0mm |
| Limited Image Circle | ≦16mm ( >16mm customized) |
| Wavelength | Photopic or NIR |