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Kern OKN Metallurgical Binocular Microscope

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Note: there are two versions of this microscope available. Both are identical apart from model number OKN 177 ships with a premium 100W halogen illumination light (model OKN 175 has a standard 50W halogen light).

Kern's OKN microscope is ideal for all common routine inspections in the laboratory. The scope is is metallurgical; it uses reflected light from a high quality halogen light source situated above the sample.

As standard both OKN models include a large-size reflection stage which can be moved upwards and downwards. They also ship with four achromatic objectives (5x, 10x, 20x and 40x), a quintuple nosepiece (holds up to five objectives) and a complete polarisation kit.

The Kern OKN series is equipped with a binocular style eyepiece as standard. It is also possible to buy a special version of the unit with a trinocular head, allowing a digital camera to be attached to the microscope (please call if interested in this variation).

This microscope is powered by standard 230V mains connection and includes Kern's 3 year manufacturer's warranty as standard.

Kern OKN Metallurgical Binocular Microscope Key Features

  • Reflecting light metallurgical microscope
  • Two versions available with standard or premium halogen illumination
  • Infinity corrected plan acrhomatic objectives included as standard
  • Nosepiece holds up to five objectives
  • Large-size adjustable mechanical stage
  • Supplied as standard with complete polarisation kit
  • Binocular-style eyepiece
  • Diopter adjustment
  • Powered by 230V mains connection
  • Scale built into the eyepiece
  • Abbe condenser
  • 3 year Kern manufacturer's warranty included
Part CodeOKN 175

Kern OKN Technical Specifications

These specifications apply to both models (OKN 175 and OKN 177) unless stated otherwise in the table below.

√ = included in standard configuration

O = optional extra. Please call for non-standard configurations

Model Outfit Included as Standard? Part Number for Individual Item
(please quote if wanting to buy separately)
Eyepieces WF 10x / 18mm diameter OBB-A 1347
WF 10x / 18mm diameter (reticule 0.1mm) (adjustable) OBB-A 1350
WF 5x / 20mm diameter O OBB-A 1355
WF 12.5x / 14mm diameter O OBB-A 1353
Infinity Plan Objectives (no cover glass) 5x / 0.11 W.D., 6.73mm OBB-A 1268
10x / 0.25 W.D. 4.19mm OBB-A 1244
20x / 0.40 (spring) W.D. 2.14mm O OBB-A 1251
40x / 0.65 (spring) W.D, 0.45mm O OBB-A 1258
100x / 1.25 (oil) (spring) W.D. 0.12mm O OBB-A 1241
Infinity Plan Objectives (no cover glass) - for long working distance) 20x / 0.40 (spring) W.D. 8.35mm OBB-A 1252
40x / 0.65 (spring) W.D. 3.90mm OBB-A 1259
50x / 0.70 (spring) W.D. 1.95mm O OBB-A 1266
80x / 0.80 (spring) W.D. 0.85mm O OBB-A 1271
Binocular Tube Siedentopf, 30° inclined, 360° rotatable
Interpupillary distance: 50 to 75mm
With diopter adjustment (both-sided)
Trinocular Tube Siedentopf, 30° inclined, 360° rotatable O OBB-A 1343
Nosepiece Quintuple -
Mechanical Stage (for reflection) Stage Size (W x D): 200 x 140mm
Travel: 78 x 55mm
Stage fast lowering unit
Stage up-down moving range: max 50mm
Stage Plate Plate for sample placement -
Stage Micrometer Specimen slide with scale reticule 0.01mm O OBB-A 1224
Polarising Unit Polarising/analyser slide OBB-A 1287
Illumination 12V/ 50W Halogen (OKN 175)
12V / 100W Halogen (OKN 177)
OBB-A 1204 (50W)
OBB-A 1376 (100W)
Filter Blue O OBB-A 1176
Green O OBB-A 1192
Yellow O OBB-A 1202
C-Mount 1x O OBB-A 1140
0.57x (focus adjustable) O OBB-A 1136
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