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The CKX31 is a low-cost inverted microscope with a fixed binocular observation tube that delivers high optical performance as well as convenient operation and a small footprint. The UIS2 PlanCN series of objectives offer plan correction over the complete field of view for efficient observation. Visibility is further increased with Olympus relief contrast, particularly when using non-glass cell culture vessels, and productivity is increased with pre-centred phase contrast
Optical system
UIS2 (Universal Infinity-corrected) optical system
Focus
Vertical nosepiece movement (stage is fixed),
coaxial coarse and fine focus with tension adjustment mechanism, roller slide mechanism,
stroke: 7 mm up and 2 mm down from focus position which is 1 mm above the stage,
stroke per rotation: 36.8 mm (coarse), 0.2 mm (fine)
Revolving nosepiece Quadruple
Stage
Plain stage
160 mm (L) x 250 mm (W)
ø35 petri dish holder stage
incorporated
Mechanical stage
Right-hand low drive coaxial controls,
stage movement: X=120 mm, Y=78 mm, with three dish/sample holders
Substage
70 (L) X180 (W) mm
Illumination system
Light source
6 V, 30 W halogen lamp, lamp socket (U-LS30-3-5),
built-in frosted and heat absorbing filters, detachable illuminator
Filter holder
Insert up to 11 mm thick with ø45 mm filter, detachable
Aperture diaphragm
Lever type, range: from minimum ø3 mm to maximum ø44 mm
Slider insertion
With phase slider pocket and built-in slider position click stop mechanism
Condenser
Detachable ultra-long working distance condenser (N.A. 0.3, W.D. 72 mm)
Contrast slider
Pre-centered phase contrast: 4X, 10X/20X/40X, empty slot
Centerable phase contrast: 4X, 10X/20X, empty slot (40X optional, pre-centered)
Centerable for Relief Contrast: 10X, 20X, 40X
Observation tube
Binocular tube
Fixed binocular tube, inclined
45°, interpupillary distance range:
48-75 mm, diopter adjustment
by helicoid on right sleeve
Fluorescent illuminator
Detachable illuminator,
switchable slide (3-position: B excitation, G excitation, empty slot or U excitation)
Eyepiece
10X (F.N. 20)
Power supply
Continuous intensity adjustment,
built-in voltage changeover switch (100/120 V, 220/240 V), frequency 50/60 Hz
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