UMA / PRODUCTS / Lens MTF Tester


MTF Inspection

• Support FOV 215˚ (diagonal) measurement to achieve ultra-wide angle inspection requirements.

• MTF Test and Distortion correction chart are both designed in a one reticle that simplified calibration process and more cost-effective.

 • The attitude of entrance pupil is program controllable for raising the common multiusability of tray and decrease the chances of Collimator Cameras adjustment

 • 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 other vibration isolator.


Items Description
MTF 9 ~17 image regions
DOF Depth of Focus
FBFL Flange Back Focal Length
Through Focus  
Focus Tilt Curvature Height
Image Plane Tilt Angle & Azimuth
Image plane Correction  
S.F.R. Spatial Frequency Response
Limit Resolution(lp/mm)  
C.R.A. Chief Ray Angle
Encircled Energy  


Optical System Infinity conjugate or
Controllable vary object distance (40cm~infinity)
Number of Collimators 9~25 collimators (Object Distance Fixed)
9~17 collimators (Object Distance Variable)
Normally Average Test Time Without tray load/unload is around 2.5s/lens
Include tray load/unload is around 9.0secs/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)
Collimator Lens EFL : 25mm/35mm/50mm
FOV Range (optional) Bracket A.(Typical) : 20˚ ~ 110˚
Bracket B. : 60˚ ~ 155˚
Bracket C. : 85˚ ~ 179˚
Bracket D. : 120˚ ~215˚
Lens Size Limitation ψ50, 60mm height
XY Auto Centering Accuracy +/-5um
Limited Measuring Journey of Column Tray 55mm
Light Source 15V /150W Halogen Lamp
Machine Dimensions(cm) 106cm * 96cm * 160cm
Machine Weight(Kg) 250 Kg
Power Supply AC220V/10A
Software Operation Windows 7