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Fixed-focus objective lens
microfor measuring and inspectiondepth measurement

Fixed-focus objective lens - MITUTOYO - micro / for measuring and inspection / depth measurement
Fixed-focus objective lens - MITUTOYO - micro / for measuring and inspection / depth measurement
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Characteristics

Type
fixed-focus, micro
Technical applications
for precision measurement, for metrology applications, depth measurement, topography, for measuring and inspection
Other characteristics
plan achromatic, apochromat
Focal length

40 mm
(1.57 in)

Description

Short description
  • Michelson type objective for white-light interferometry (WLI)


Product description
  • New design matching the WLI-Unit
  • Provides long working distance while remaining compact and lightweight (parfocal 60 mm)
  • High numerical aperture for improved resolution (N.A. 0.14)
  • Plan apochromat optical correction
  • Beam splitter and reference mirror integrated inside the objective lens
  • Interference fringe adjustment mechanism included as standard


Technical table
  • Model: WLI Plan Apo 2.5x
  • Magnification: 2.5x
  • Working distance: 13 mm
  • Correction: Infinite
  • N.A.: 0.14
  • f: 40 mm
  • P.D.: 60 mm
  • R: 2 µm
  • Applicable tube lens f: 100 mm
  • FOV 2/3 inch camera: 2.64×3.52 mm
  • FOV WLI-Unit: 2.94×2.25 mm
  • Glass compensation: No
  • High Resolution: No
  • Laser Applications: No
  • Mirror tube length (excl. mounting screws): 47 mm
  • Mounting screws: RMS / 20.32 mm ×36 TP
  • Observation/Interferometer: Interferometer
  • Outermost diameter: 36.4 mm (excluding interference unit) / 58.5 mm (Max)
  • Spectral Range: VIS
  • Mass: 320 g


Technical specifications
  • Model: WLI Plan Apo 2.5x
  • Magnification: 2.5x
  • Numerical aperture (N.A.): 0.14
  • Working distance (W.D.): 13 mm
  • Focal distance (f): 40 mm
  • Parfocal distance (P.D.): 60 mm
  • Resolving power (R): 2 µm
  • Applicable tube lens f: 100 mm
  • FOV (2/3 inch camera): 2.64 × 3.52 mm
  • FOV (WLI-Unit): 2.94 × 2.25 mm
  • Glass compensation: No
  • High Resolution: No
  • Laser Applications: No
  • Mirror tube length (excl. mounting screws): 47 mm
  • Mounting screws: RMS / 20.32 mm ×36 TP
  • Observation / Interferometer: Interferometer
  • Outermost diameter: 36.4 mm (excluding interference unit) / 58.5 mm (max)
  • Spectral Range: VIS
  • Mass: 320 g

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