UMA / PRODUCTS / Lens MTF Tester
DSC-E2TE

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DSC-E2TE
Lens MTF Tester


DSC-E2TE, as the same as DSC-E2WE series, is based on the application of the lens MTF testing products. This module is suitable for long focal length or narrow view angel lenses testing in mass production. High speed, high precision, reproducibility good, reasonable price, etc., and is compatible with the industry standard.
 


• Support FOV 4.5˚ ~ 35˚ measurement to achieve narrow-angle lens inspection. The customized test requirements is also available.

• MTF Test and Distortion correction chart are both designed into single reticle that simplified calibration process and much cost-effective.

 
• Combination of 9~25 image regions provides customers to purchase upgrades and expansion easily.

 
• Enhanced structural design allows machine operating in general factory environment without any additional vibration isolator.

 
• Support periscope lens measurement, however, it has to install reflection mirror fixture, and one lens test per each round only.
 

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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
Normally Average Test Time Without tray load/unload is around 2.0s/lens
Reticle Pattern – 2 types (Optional)
  1. Edge (ISO 12233)
  2. Line
MTF Repeatability (excluding load & unload) Delta MTF : (<= 180lp/mm)
On axis <= 1.5 ; off axis <= 2.5
Maximum Measuring Frequency 300lp/mm
Limited FBL > -3.0mm
Limited Image Circle ≦12mm  ( >12mm customized)
Relay Lens (Optional) EFL : 900mm
Object Distance Infinity
FOV Range (Typical) Min. 4.5˚ 
Max. 35˚ 
Lens Size Limitation ψ50, 60mm height
XY Auto Centering Accuracy / Range 3um ; ±0.15mm
Limited Measuring Journey of Column Tray 130mm at X & Y Axis
System Spectrum Response
 
Photopic
Light Source 15V /150W halogen lamp
Machine Dimensions(cm) 180cm *76cm *160cm
Machine Weight(Kg) 250 Kg
Power Supply AC220V/10A
IPC Operation system Microsoft Windows 7