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LB-291 Inverted Trinocular Biological Microscope

LB-291 Inverted Trinocular Biological Microscope with Infinite Optical System (Infinity Color Corrected System) is a high level microscope which is specially designed for medical and health units, universities, research institutes to observe cultured living cells. It adopts an Infinite optical system, reasonable structure and ergonomic design. With an innovative optical and structure design, excellent optical performance and easy to operate system, this inverted biological microscope makes your works enjoyable.



Excellent optical function with infinite optical system.

DSLR (Digital Single Lens Reflex) and microscope digital camera can be used together for image and video capture.

Innovative stand structure, sharp image display, convenient and special for viewing incubating cell tissue.

With LWD Infinite Plan Objective, Making Viewing Field Flatter and Brighter, Contrast Sharper, Living Cell Observing easier.

Advanced and Reliable Mechanical Stage with Knob Height and Tightness Adjustable.

With pre-centerable Phase Annulus, Available to Observe Low Contrast or Transparent Specimens.



Optical System Infinite Optical System

Viewing Head Seidentopf Trinocular Viewing Head, Inclined at 45°, 360° Rotatable, Interpupillary Distance 48-75mm

Eyepiece Wide Field Eyepiece WF10×/ 22 with diopter adjustment, Eyepiece Tube Diameter 30mm

Objective LWD (Long Working Distance)

Infinite Plan Achromatic Objective 4×/ 0.1,WD 22mm

LWD (Long Working Distance) Infinite Plan Achromatic Phase Objective 10×/ 0.25, WD 6mm

20×/ 0.4, WD 3.1mm

40×/ 0.55, WD 2.2mm

Nosepiece Backward Quintuple Nosepiece

Condenser ELWD (Extra Long Working Distance) Condenser NA 0.3,

LWD 72mm (Without Condenser the WD is 150mm)

Centering Telescope Centering Telescope (Φ30mm)

Phase Annulus 10×-20×, 40× Phase Annulus Plate(Fixed)

Stage Plain Stage 170×230mm

Glass Insert

Auxiliary Stages 70mm×180mm

Terasaki Holder

Petri Dish Holder Φ35MM

Slide Glass Holder Φ54MM

Attachable Mechanical Stage, X-Y coaxial control, Moving Range 80 x 120 mm

Focusing Coaxial Coarse and Fine Adjustment, Fine Division 0.002mm, Coarse Stroke 37.7mm per Rotation, Fine Stroke 0.2mm per Rotation, Moving Range up 8mm, down 3mm

Illumination Halogen Lamp 6V/30W, Brightness Adjustable

Filter Blue, Green and Frosted Glass Filter, Diameter 45mm

Dimension & G.W. 46.5cm*39.5cm*64cm, 18kg


Trinocular Microscope, Labomed Microscope, Biological Microscope