UMA / PRODUCTS / Lens MTF Tester
DSC-E3TE
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DSC-E3TE
Lens MTF Tester
High speed, high precision, reproducibility good, reasonable price, etc., and is compatible with the industry standard.
APPLICATION
This module is suitable for long focal length or narrow view angel lenses testing in mass production, which also support the manual switch to 10cm object distance measurement.
FEATURES
✔ Support FOV 3˚ ~ 40˚ measurement at infinity distance to achieve narrow-angle lens inspection.
The customized test requirements is also available.
✔ UMA multinational patents：Owing to the multiple collimators system that cannot measure large-aperture lenses, by using Relay Lens design, DSC-E3TE can measure large and small aperture lenses, which supports up to EFL80mm lens measurement.
Meanwhile, a customized system is available for other lens specifications.
✔ The Relay Lens device is a switchable structure for finite object distance, 10cm above, measurement.
✔ For a user to be able to choose the most suitable focus-scanning mode freely, both free run and trigger run are available.
Optional Upgrade
✔ Optional upgrade of Micro Distance Measurement Subsystem is available, which is suitable for fingerprint recognition, medical and certain cellphone applications.
Lens MTF Tester
High speed, high precision, reproducibility good, reasonable price, etc., and is compatible with the industry standard.
APPLICATION
This module is suitable for long focal length or narrow view angel lenses testing in mass production, which also support the manual switch to 10cm object distance measurement.
FEATURES
✔ Support FOV 3˚ ~ 40˚ measurement at infinity distance to achieve narrow-angle lens inspection.
The customized test requirements is also available.
✔ UMA multinational patents：Owing to the multiple collimators system that cannot measure large-aperture lenses, by using Relay Lens design, DSC-E3TE can measure large and small aperture lenses, which supports up to EFL80mm lens measurement.
Meanwhile, a customized system is available for other lens specifications.
✔ The Relay Lens device is a switchable structure for finite object distance, 10cm above, measurement.
✔ For a user to be able to choose the most suitable focus-scanning mode freely, both free run and trigger run are available.
Optional Upgrade
✔ Optional upgrade of Micro Distance Measurement Subsystem is available, which is suitable for fingerprint recognition, medical and certain cellphone applications.
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FUNCTIONS
| MTF | Edge or Line Pattern |
| 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 | |
| C.R.A. | Chief Ray Angle |
| Encircle Energy | Edge Pattern |
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SPECIFICATIONS
| Machine Dimensions | 190cm *76cm *160cm |
| Machine Weight | 350 Kg |
| Power Supply | AC220V/10A |
| IPC Operation system | Microsoft Windows 10 |
| Reticle Pattern – 3 types (Optional) |
A：Edge (ISO 12233) + Grid B：Cross Line + Grid C：Cross Line |
| MTF Repeatability (10pcs sample、tray in/out 5 times、excluding load & unload) |
Delta MTF : (<= 200lp/mm) On axis <= 1.5 ; off axis <= 2.5 |
| Average test times/pc H/W trigger Mode (without tray load and unload) |
2.0s /pc (M6 Lens、through focus range +/-0.04) |
| MTF Repeatability (without tray load/unload) |
Delta MTF : (<= 180lp/mm) On axis <= 1.5 ; off axis <= 2.5 |
| Maximum Measuring Frequency | 300lp/mm |
| Limited FBL | > -3.0mm |
| BFL Repeatability | ≦0.02 mm |
| Limited Image Circle | ≦12mm ( >12mm customized) |
| System Spectrum Response | Photopic or NIR |
| Light Source | White Light or NIR LED Light Source |