N-400POL
Optical system Mechanical tube lenght: DIN standard - 160 mm; parfocal distance 45 mm.
Head Binocular, 30° inclined, 360° rotating. Diopter adjustment; interpupillary distance adjustment 55-75 mm.
Eyepieces Wide Field WF10x/18 mm.
Analiser Rotating filter with graduation 0°-90°.
Bertrand lens Sliding in/out type with centering mechanism.
Compensators l slip (first class red), 1/4 l slip, quartz wedge
Nosepiece 5-position reversed revolving nosepiece. Ball bearing linear guides.
Objectives Strainfree achromatic 4x/0.1, 10x/0.25, 40x/0.65 (spring loaded) and 60x/0.85 (spring loaded).
Specimen stage Diameter 145 mm, 360° rotating, centrable and graduated (1° division). Minimum resolution 6’ when using vernier scale.
Focusing system Rack and pinion mechanism, with coaxial coarse and fine control knobs. Fine adjustment graduation 0.002 mm. Vertical movement range: 20 mm. Tension control on right
side; upper stage drive stop on left side.
Condenser Abbe condenser with double lens. N.A. 1.25. Fitted with iris diaphgram, blue filter and filter holder. Height adjustment by a rack and pinion mechanism.
Polariser Sliding in/out filter, located on the top of the illuminator.
Illumination 6V/20W with halogen bulb with brightness control.
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