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2.5X / F2.9

Industrial Lens Optimized for 12k VT Series (M72)


Optimized for 12k TDI Line Scan Cameras

Precisely designed for Vieworks' TDI line scan cameras, VEO CS Series achieves best image quality when used with Vieworks' 12k VT Series (M72). VEO CS Series is optimized for 12k / 5 ㎛ line sensors with 62.5 mm image circles.


High-Performance Outstanding Magnification Lens

VEO_CS DIAMOND 2.5X / F2.9 is a high-magnification lens that performs best at a magnification of 2.5x and an aperture of F/2.9. Chromatic aberration is minimal and best performance is maintained even when the spatial frequency reaches as high as 72 LP/mm on the image plane (180 LP/mm on the object plane). When used with VT Series (M72), a resolution of 2.0 ㎛ per pixel is achieved.

  • *Image 1600% enlarged
  • *Fiber coaxial illumination used
  • *Vieworks VERI-PANEL used

Superior Defect Detection

Its high magnification and resolution make the lens effective at detecting submicron defects. With a threshold value of 15, pinhole defects as small as 0.9 ㎛ and island defects as small as 1.6 ㎛ can be detected. Open and short defects can be detected to an even preciser degree than pinhole defects.

*Depending on the VERI-PANEL and the optical component for coaxial illumination used in testing, results may show slight variations.
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Performance       Click for information arrow
Parameter Specification Remarks
Magnification range 2.5 (2.4 ... 2.6)
F/# range F/2.9 ... F/5.6 Optimum F/2.9
Numerical aperture 0.121 Object Plane
Max. sensor size [㎜] 62.5
Infinite F/# F/2.9
Focal length [㎜] 105
Depth of field [㎛] 32.48 @ P. CoC 10 ㎛
Distortion < 0.05%
Wavelength [㎚] 400 ... 1000 Visible ... NIR
Working distance [㎜] 64.6 (65.6 ... 63.6) B/S ... Object
Beam splitter size 25 × 25 × 80
Total length [㎜] 529.1 ± 2 from Object to Sensor
Interface V70 mount 0.75 pitch
Iris Changeable
Relative illumination > 95%
Weight [g] 1350
Optical Parameters       Click for information arrow
Contents Parameter Value
Chief Ray Angle (Max.) in object plane CRA 4.8
Effective focal length f’eff [㎜] 105.12
Front focal length SF [㎜] -23.56
Back focal length S’F’ [㎜] 58.27
Principal plane distance HH’ [㎜] 13.75
Pupil magnification β‘P 1.04
Entrance pupil position SEP [㎜] 77.80
Exit pupil position S’AP [㎜] -50.76
Vertex width Σd [㎜] 142.17
* Documentation related to the product can be found in the Download Center.
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