Bresser Science IVM 401 Inverted Microscope 100x-400x

Description

Inspecting living cell cultures and benthic protozoa through culture flask bases, the Bresser Science IVM 401 Inverted Microscope 100x-400x provides 100x to 400x magnification across an inverted optical path. Widefield 10x eyepieces deliver clear framing. The 30W halogen illuminator reveals translucent specimens, though high thermal output requires careful dimmer regulation to protect live organisms.

A heavy 11.8 kg cast-metal stand supports an inverted quadruple nosepiece with four planachromatic objectives, a 30W halogen lamp house with a field diaphragm, and a long working distance condenser with phase contrast sliders. The fixed stage features an integrated XY moving system and Petri dish adapters. Coaxial coarse and fine focus knobs control objective elevation, paired with a 30-degree inclined trinocular head offering a vertical photographic port.

Key Features of Bresser Science IVM 401 Inverted Microscope 100x-400x

Limnological testing institutes, agricultural research universities, and in-vitro fertilization laboratories deploy this inverted instrument to examine aquatic organisms and cell sediment without disturbing liquid culture media. The long working distance condenser clears large culture flasks, while the phase contrast slider reveals internal cellular organelles without chemical staining.

• Inverted biological optical system configured for 100x, 250x, and 400x magnification
• Four DIN Planachromatic objectives included: 10x, 25x, 40x, and specialized 25x phase contrast
• Trinocular viewing tube with 30-degree inclination, interpupillary adjustment, and photo port
• Widefield WF 10x eyepieces with standard 23.2mm barrel diameter and diopter adjustment
• Long working distance condenser (NA 0.30) with phase contrast annular ring slider plate
• Powerful 30W transmitted halogen illumination with field diaphragm for Köhler alignment
• Large fixed stage platform with mechanical XY moving guide and modular Petri dish adapters
• Coaxial coarse and fine focusing assembly mounted to a vibration-damped 11.8 kg chassis

Planachromatic Optics & Phase Contrast Physics

Planachromatic objectives eliminate field curvature across culture vessel bases, preserving flat focal sharpness right to the edge of the viewing field. The included 25x phase contrast objective and matched condenser annular diaphragm convert invisible optical phase shifts into brightness variations, resolving transparent cell boundaries and protozoan cilia without requiring toxic fixation stains.

Inverted Stage Mechanics & Köhler Alignment

The fixed stage platform accommodates heavy culture bottles without sagging, while the mechanical stage guide provides smooth XY translation across sediment layers. The overhead halogen lamp house incorporates a field diaphragm and centering screws for true Köhler illumination, delivering uniform contrast across the field without hot spots.

• Mechanical stage moving system provides smooth XY translation for culture plates and flasks
• Overhead 30W halogen lamp house includes an iris diaphragm for precise contrast regulation
• Trinocular photo tube allows direct attachment of microscope cameras for research documentation

Bresser Manufacturer Warranty & Inclusions

Bresser backs this inverted microscope with a 2-year standard manufacturer warranty, extendable to 5 years upon free online product registration. The complete factory package contains the Science IVM 401 microscope, four DIN objectives, two WF10x eyepieces, phase contrast slider, Petri dish holders, dust cover, power cable, and manual.