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378-867-5 M Plan Apo NIR B 20X Objective for bright-field observation in near-infrared range, WD: 25.5mm
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378-867-5 M Plan Apo NIR B 20X Objective for bright-field observation in near-infrared range, WD: 25.5mm

Original price was: $1,806.70.Current price is: $149.00.

SKU: TEEjfB7DgpO0W Category:

Description

  • Infinity Corrected
  • Suitable for Bright Field Inspection and Laser Applications
  • Long Working Distance 25.5 mm
  • High Quality Plan Apochromat Design
  • Wavelength Correction from Visible to Near Infrared (1800 nm)

Features

Model: M Plan Apo NIR B 20X

Magnification: 20x

Working distance: In Air: 25.5 mm

Corrected Wave Length: 420-1064 nm

N.A.: 0.4

f: 10 mm

P.D.: 95 mm

R: 0.7 m

D.F.: 1.7 m

FOV 1: 1.2 mm

FOV 2: 0,24 x 0,32 mm

Abbreviations in product table: N.A.: Numerical aperture
W.D.: Working distance
P.D.: Parfocal distance
f: Focal distance
R: Resolving power
D.F.: Depth of field
FOV 1: Field of view when using 24 mm eyepiece
FOV 2: Field of view when using a digital camera with 1/2″ chip size

M Plan Apo NIR B:

Note:
This series of objective has greatly improved in operability thanks to the achievement of an ultra-long working distance of 25,5 mm while maintaining the NA of the NIR series 20X/50X.

M Plan Apo NIR: Note:
These objective lenses are designed so that the image of a workpiece remains focused within the focal depth even when the wavelength used is changed from within the visible range up to the near-infrared (480 to 1,800 nm).
Therefore the M Plan NIR Series are suitable for laser repair. However, when the wavelength used exceeds 1,100 nm, the focussing position may deviate slightly from that in the visible range due to changes in glass dispersion and refractive index.

Mass: 350 g

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