Darkfield Optical Microscope

A dark-field microscope uses a special condenser to deflect direct light, allowing only the oblique light scattered by the sample to enter the objective lens, forming bright images against a dark background. It is used to observe transparent or low-contrast samples, such as fine structures of bacteria and cells, and to examine unstained specimens in biomedicine and material testing.
Selection
When selecting a darkfield microscope, consider the thickness and transparency of the sample, as thin and transparent specimens yield more pronounced results. Match the numerical aperture of the condenser and objective lens appropriately to ensure proper alignment of the darkfield light cone. Choose the light source intensity based on observation needs, and verify that the slide thickness complies with the condenser design specifications.

Terms

Standards

Instruments

Optical inspection system and Modular design can be used to upgrade the functions of polarization and dark field observation; coarse fretting coaxial focusing system fretting grid value of 2 μ m, cylindrical roller guide drive to ensure smooth lifting, suitable for different Film thickness workpiece detection.

$ 6012.00

Optical inspection system with infinite distance provides clear imagery; ultra-long working distance concentrating system up to 70mm, supports high culture dish observation; compact and stable main body design, effective vibration protection.

$ 2746.00

Infinity Optical inspection system and Modular design are adopted, stress-free long working distance flat field objective is equipped, the fretting grid value is 2 μ m, the rotating stage has 360 ° scale, and the polarizing observation device is flexibly moved in and out of the optical path.

$ 2300.00

Optical inspection system infinity to ensure good imagery mass, 70mm long working distance condenser to support high culture dish observation, coarse fretting coaxial focusing system fretting grid value of 2μm to achieve accurate focusing.

$ 2946.00

Optical inspection system with infinity, long working distance objective lens such as 10X0.25 working distance 4.3mm, swirl/spin swing-out concentrating system can observe high culture dishes without contamination, Modular fluorescence system is easy to adjust.

$ 10530.00

Optical inspection system, working distance up to 70mm, support phase contrast observation and a variety of culture dish adaptation, compact and stable body design to meet the requirements of vibration protection, providing clear microscopic imagery effect.

$ 3653.00

Infinity Optical inspection system and Modular function design can realize polarization and dark field observation; Coarse fretting coaxial focusing system fretting grid value of 2 μ m, guide column lifting device to adapt to different Film thickness workpiece detection needs.

$ 2252.00

Optical inspection system with infinity, equipped with long working distance condenser and working distance 55mm, swirl/spin swing-out condenser system can observe high culture dishes without contamination, compact and high rigidity body to meet vibration protection requirements.

$ 3268.00

Optical inspection system to improve imagery mass, working distance up to 20mm, support a variety of observation methods, magnification 40X-1000X, to meet different experimental needs.

$ 787.00

Optical inspection system with infinite distance, equipped with phase contrast condenser and variable light bar, magnification 40X-1600X, support phase contrast objective and brightfield observation, expandable fluorescence and other auxiliary devices.

$ 2239.00

Optical inspection system with infinite distance, long working distance flat-field objective with non-stress, fretting grid value of 2 μ m, 360 ° adjustable rotating stage, support polarization observation and microphotography.

$ 2429.00

Equipped with UIS Infinity Optical inspection system, supports phase contrast observation and dark field function, magnification 40X-1600X, uses 6V/20W halogen lamp Kohler lighting, expandable fluorescent and vertical lighting device.

$ 3449.00

Optical inspection system with infinity, 40X-1000X magnification range and N.A.1.25 Abbe condenser, support digitalization observation and a variety of auxiliary equipment expansion.

$ 2060.00

Optical inspection system with infinity, support 40X-1600X magnification range, with Abbe condenser and coaxial focusing mechanism, can realize high-resolution real-time observation and digital storage function.

$ 1213.00

Infinity Optical inspection system, equipped with 5X-50X Bright & Dark Field objective lens, working distance 2.5-9 mm, mildew-proof design and mechanical mobile stage, support polarized observation and camera function.

$ 6496.00