Head
Infinity Corrected Optical System
Seidentopf Trinocular head inclined at 30°
Interpupilary Distance adjustment range : 50-75mm
Diopter adjustment : ±5°
Wide field Plan Eyepiece PL 10X/22mm
CS-U3500
CS-U3500 series biological microscope comes equipped with an infinity Plan optical system and offers advanced features as well as research grade performance. Its crystal clear optical and precise mechanical systems promises high quality performances for advanced applications while ergonomic design assures comfortable operation.
HEAD
Viewing head
Comfortable observation with compensation free Siedentopf-type trinocular head inclined at 30°, with wide interpupillary range of 50-75mm and can be rotated 180-degrees upward to a higher position for tall users. Option of Binocular head in-lieu of Trinocular head is available.
Ultra wide field plan eyepieces
The 10x/22mm eyepieces are the largest and widest-viewing eyepieces in this microscope class. The physical eye-tube diameter is 30mm, 30% larger than standard 23mm eyepieces, and the field number 22mm allows for a much broader view under each objective power. These eyepieces feature a HIGH FOCAL POINT, which means that the eyes stay farther away allowing users to keep their eyeglasses on while using the microscope.
Additionally, each eyepiece has a built-in ±5 diopter adjustment for quick corrections for a weak left or right eye.
NOSEPIECE & OBJECTIVES
Nosepiece
The Quadruple reverse nosepiece allows for greater access to slides for quick changes. Quintuple nosepiece (optional) is ideal for laboratory and research use. The objectives are mounted in a multiple ball bearing reverse nosepiece.
Professional Infinity plan objectives
Developed with high-contrast Infinity PLAN objectives, CS-U3500 series microscope produces sharp, crisp, flat-field images across the entire field of view. Whether spending hours scanning cytologies or counting differentials, a flat field of view will ensure that the critical cells at the edge of view are just as clear and focused as those cells in the middle. The infinity optical system, as found on the most expensive research microscopes, is the premium platform for the highest contrast and resolution. The objectives are Anti-fungal, parfocal, parcentric, color-coded.
STAGE
The large (216mm X 150mm), graphite-coated mechanical stage stands up to years of wear and tear. The rackless, belt-drive system allows the stage to operate smoothly, comfortably, and safely by eliminating the left and right projection of the gear track as on traditional microscopes. This stage accommodates two slides at once, for faster scanning and comparisons. Adjustable friction can be set for lighter or firmer coarse focusing, eliminating stage drift. The range of traverse is 75 x 55mm. CS-U3500 features a slow-close hydraulic slide finger.
The coarse adjustment has a range of 24mm and the fine adjustment graduation of 0.001mm will make it work fast. It has a tension control knob.
ILLUMINATION
Condenser
The NA 1.25 ABBE condenser is easily aligned within its holder using the two alignment thumbscrews, ensuring a centered field of light. Calibrated indicator mark help the user set the sub-stage iris diaphragm to the perfect numerical aperture to match each objective for the best resolution. The additional Kohler iris on the base can be closed to reduce stray light and improve clarity.
Light Source
The bright, white, uniform LED illumination maintains constant daylight-color, showing stained specimens in their true vibrant colors. With variable intensity, it is more than bright enough for routine brightfield microscopy and also well suited for applications such as phase contrast and darkfield.
Cable Storage System
The built-in cord wrap keeps the work-station neat, and the handle in the neck makes CS-U3500 easy to move and store.
