UMA / PRODUCTS / Lens MTF Tester
DSC-E2DV

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DSC-E2DV
MTF Inspection

 

DSC-E2DV is one of DSC-E2 Series product, which designed for applying MTF test to lens inspection. The characteristic of this system is capable of change the subject distance from 30cm to infinity and 2m virtual image continually via software control. It is suitable for large quantity mass production in variety of applications such as mobile phones, NB, security, AR, VR and other types of lens. High speed, high precision, reproducibility good, reasonable price, etc., and is compatible with the industry standard.


• Program controlled motorized collimator can meet different objective distances measurement needs.

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

• Combination of 9~17 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.

• The Collimator Lens does not need to be changed for NIR, such as 850nm or 950nm, measurement.

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MTF 9 ~25 Image Regions
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
Ensquared Energy  
Relative FOV  

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SPECIFICATIONS
Normally Average Test Time Without tray load/unload is around 2.5s/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/100mm
Object Distance Collimator Lens VS. Object Distance:
EFL 25mm: 30cm ~ Infinite ~ Virtual 50cm
EFL 35mm: 35cm ~ Infinite ~ Virtual 50cm
EFL 50mm: 45cm ~ Infinite ~ Virtual 80cm
EFL 100mm: 110cm ~ Infinite ~ Virtual 130cm
FOV Range Dome: R480mm
Bracket A. : 24° ~ 75° (Typical)
Bracket B. : 60° ~ 120°
Other : customized
Preconditions:
Aspect ratio 1:1 or Azimuth 45°
For 40cm object distance measurement:
Minimum FOV gap of test region:
30 degree /on the same axis
20 degree/ on the different axis
Lens Size Limitation ψ50, 60mm height
XYZ Table Accuracy 1um
Limited Measuring Journey of Column Tray 130mm at X & Y Axis
Light Source(Manual switching) 15V /150W halogen lamp or NIR enhanced halogen lamp for NIR test
Machine Dimensions(cm) 142cm *76cm *160cm
Machine Weight(Kg) 250 Kg
Power Supply AC220V/10A
IPC Operation system Microsoft Windows 7