Levenhuk 850B microscope, binocular
Levenhuk 850B microscope, binocular Article: 24611 The Levenhuk 850B biological microscope is designed for bright-field observations in transmitted light at a magnification of 40 to 1000 times. It is equipped with a 360º rotatable binocular head and an LED light source, has an ergonomic design and is suitable for routine and scientific research work in the laboratory. Areas of application: cytology, biochemistry, pathological anatomy, dermatology, urology, biology, general clinical research. Optics – plan achromatic. The revolving device is designed for simultaneous installation of 4 lenses. Since it is in the “from the observer” position, the user always sees the lens introduced into the path of rays. The binocular head is tilted at an angle of 30º to reduce the load on the neck muscles during prolonged work, the distance between the eyepiece tubes is adjustable in a range that is comfortable for any user. The included eyepieces provide 10x magnification with a large field of view of 22mm. The 100x objective can also be used for oil immersion. An immersion lens will allow for maximum multiplicity, it is better to examine the details of microslides, greatly enhancing their brightness and depth of field. A bottle of immersion oil is included in the kit. The object table is ergonomically designed: there is no sliding rail, and the adjustment knob is low enough to make it as comfortable to use as possible. Drug holder for two samples. The table moves the object in a horizontal plane along two mutually perpendicular axes, the range of movement is comfortable, the table travel smooth. Focusing can be adjusted both coarsely and finely using two knobs on the body. Their rotation moves the object stage vertically. The transmitted light illuminator is located at the base of the microscope - it is an LED powered by an alternating current network. It provides uniform illumination and works for a long time without replacing the lamp. Using an LED as an illuminator increases the resolution of the microscope. The included filter helps highlight details and increase image contrast. The microscope also provides Köhler illumination adjustment: there is both an aperture and a field diaphragm. Main features: Microscope-binocular with the ability to install a digital camera in one of the eyepiece tubes. Bright-field observations at magnifications from 40 to 1000 times, planachromat lenses. Classic Abbe condenser with aperture diaphragm, field diaphragm, Köhler illumination setting. A specimen table with a preparation holder for two samples; The low adjustment knob and the absence of a retractable rail improve ergonomics. Coarse and fine focusing with a smooth and confident movement of the mechanism. The source of transmitted light is an LED powered by a 220 V network. The slide-out manifold simplifies lamp replacement. Equipment: Microscope stand with base, objective revolver, condenser device, object stage, built-in transmitted light illuminator and power source. Binocular visual attachment. Planachromatic lenses: 4×, 10×, 40×s, 100×s (oil). Eyepiece WF10×/22 mm (2 pcs.). Blue filter. Bottle with immersion oil. Network adapter. Dust cover. Operating instructions. Warranty card. Manba: https://www.nv-lab.ru/catalog_info.php?ID=8632
- Parameter: Value
- Microscope type: light / optical, biological
- Attachment type: binocular
- Optics material: optical glass
- Nozzle: 360° rotatable
- Eyepiece tilt angle: 30°
- Magnification, times: 40 – 1000
- Eyepiece tube diameter, mm: Ø23.2
- Eyepieces (paired): WF10×/22 mm
- Lenses: planachromatic, infinity corrected: 4×, 10×, 40×s, 100×s (oil)
- Revolving device: for 4 lenses
- Interpupillary distance, mm: 48 – 75
- Subject table, mm: 210×150, mechanical two-layer, without retractable rail, with a specimen holder for two samples
- Range of movement of the subject table, mm: 75 / 55
- Diopter adjustment of eyepieces, D: ±5
- Condenser: Abbe N.A. 1.25
- Diaphragm: aperture, field
- Focusing: coaxial, coarse (24 mm) and fine (0.002 mm)
- Case: metal
- Backlight / Backlight lamp type: LED / LED 3 W
- Brightness adjustment: yes
- Power supply: 110-220V/50Hz
- Filters: blue
- Optional magnification options: The magnification range can be expanded by using optional. accessories (eyepieces, Barlow lenses, objectives)
- User level: advanced
- Assembly and setup difficulty level: easy
- Purpose: laboratory / medical
- Illumination location: bottom
- Research method: bright field
- Cover/case/bag included: dustproof cover
- Package size (L × W × H), mm: 520 × 390 × 320
- Package weight, kg: 8.9