Specifications:
The OPTIKA B-151 is a monocular educational microscope designed for routine applications. It features a fixed table and includes achromatic objectives of 4x, 10x, and 40x magnification. The microscope is equipped with a white LED light source with a power of 1W and a color temperature of 6300K, offering an average lifetime of approximately 50,000 hours. It operates with an external power supply of 100/240Vac, 50/60Hz, and outputs 6Vdc 2.5A. Additionally, it has an internal NiMH rechargeable battery that allows up to 15 hours of use at medium light intensity.

Observation Modes:
The microscope supports brightfield observation.

Focusing:
It includes a coaxial coarse and fine focusing mechanism with a graduation of 0.002mm and an upper stop to prevent contact between the objective and specimen. The tension of the coarse focusing knob is adjustable.

Stage and Nosepiece:
The plain stage measures 125x120mm. It has a quadruple revolving nosepiece that rotates on ball bearings.

Head and Eyepieces:
The monocular observation head is inclined at 30° and rotatable 360°. It comes with widefield eyepieces WF10X/18 with a field number of 18mm.

Objectives:
The microscope includes achromatic objectives with a mechanical tube length of 160 mm, treated with an anti-fungus treatment. The objectives are:

• Achromatic DIN 4X, A.N. 0.10, W.D. 18 mm
• Achromatic DIN 10X, A.N. 0.25, W.D. 7 mm
• Achromatic DIN 40X, A.N. 0.65, W.D. 0.53 mm

Condenser:
It features an Abbe condenser with N.A. 0.65, precentered.

Dimensions and Weight:
The microscope measures 350 mm in height, 170 mm in width, and 210 mm in depth, with a weight of 4 kg.

Accessories:
An instruction manual and dust cover are included.

Model and Typology:
The model is B-151R, categorized as an educational microscope with a dye-cast frame for high stability and ergonomics, suitable for transmitted light observation.