AmScope B490B-LED Compound Binocular Microscope
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Compound microscope provides high magnification for biological use and educational applications
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Binocular viewing head with pairs of 10x widefield and 20x widefield eyepieces and sliding head with 55 to 75mm interpupillary adjustment, fixed 30-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing
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Forward-facing nosepiece with 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN achromatic precision-ground optical-glass objectives that provide color correction of magnified images, and anti-mold surfaces to preserve optics in high-humidity areas
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Brightfield, LED illumination, and 1.25 NA Abbe condenser with iris diaphragm and rack-and-pinion focus control for precise focus, clear examination, and light control
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Double-layer mechanical stage with 1.0mm stage divisions and stage stop; and graduated coarse and fine focus with tension control to prevent stage drift
LW Scientific
Revelation III
OPTICS
Infinity Flat-Field Objectives
Developed with high-contrast infinity PLAN objectives, the Innovation microscope produces sharp, crisp, flat-field images across the entire field of view. Whether spending hours scanning cytologies or counting differ- entials, 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.
Objective Choices
The 4-objective model features the most common configuration – 4x-10x-40x-100x (oil) – on a 4-hole reverse nosepiece. The reverse nosepiece allows for greater access to slides for quick changes. Affordably priced, this model fits the needs of most universities and clinics.
The 5-objective model is ideal for laboratory and research use. It offers a 4x-10x-20x-40x-100x (oil) configuration on a 5-hole reverse nosepiece. The 20x objective is a useful power between the 10x and 40x for research and cytology scanning applications.
Add an optional 50x OIL objective, the finest objective available, for the highest resolution and to double the field-of-view of the 100x OIL objective. Plus, users can stay in oil while scanning under 50x then flip to the 100x for a closer look at a questionable cell, without fear of dipping the 40x objective into oil.
Eyepieces
The 10x/22mm eyepieces are the largest and widest-viewing eyepieces in this microscope class. The physical eye-tube diameter is 30mm, much 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, meaning that the eyes stay farther away allowing users to keep their eyeglasses on while using the microscope. Additionally, each eyepiece has a built-in diopter adjustment for quick corrections for a weak left or right eye. Finally, two pairs of rubber eye-guards are included…one low-profile set, and one larger set of cups for improving eye position and eliminating stray light.
FRAME
Head
The Siedentopf-type head is inclined 30-degrees for a comfortable user posture. It accommodates interpupillary widths from 50mm to 75mm and can be rotated 180-degrees upward to a higher position for taller users. Choose either a binocular head for routine use or a low-profile trinocular head for mounting any C-mount or eyetube-type camera. The trinocular head comes complete with both C-mount and eyetube pipes, which are often high-cost accessories from other major micro- scope brands.
Stage
The large, graphite-coated mechanical stage stands up to years of wear and tear. The rackless, belt-drive system allows the stage to operate smoothly, comfort- ably, and safely by eliminating the left and right projec- tion of the gear track as on traditional microscopes. This stage will accommodate two slides at once, for faster scanning and comparisons. Adjustable friction can be set for lighter or firmer coarse focusing, eliminating stage drift.
Ergonomics
Its ergonomic, durable design ensures comfort and dependability for hours of daily use. The narrow front and low controls allow for arms and hands to rest flat on the table, reducing arm and shoulder strain. The rubber feet and wide rear footprint keep the microscope stable and reduce vibration for steady viewing. The built-in cord wrap keeps the lab counter neat, and the handle in the neck makes the Innovation easy to move and store.
ILLUMINATION
LED
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. The LED bulb lasts approximately 50,000 hours, which could be up to 20 years under normal clinical use. The bulb generates very little heat as opposed to the traditional halo- gen models, and it uses a tenth of the energy. Save money on both reduced energy costs and bulb replacements.
Condenser
The ABBE condenser is easily aligned within its holder using the two alignment thumbscrews, ensuring a centered field of light. Calibrated indicator marks 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.
LW Scientific
Innovations
OPTICS
Infinity Flat-Field Objectives
Developed with high-contrast infinity PLAN objectives, the Innovation microscope produces sharp, crisp, flat-field images across the entire field of view. Whether spending hours scanning cytologies or counting differ- entials, 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.
Objective Choices
The 4-objective model features the most common configuration – 4x-10x-40x-100x (oil) – on a 4-hole reverse nosepiece. The reverse nosepiece allows for greater access to slides for quick changes. Affordably priced, this model fits the needs of most universities and clinics.
The 5-objective model is ideal for laboratory and research use. It offers a 4x-10x-20x-40x-100x (oil) configuration on a 5-hole reverse nosepiece. The 20x objective is a useful power between the 10x and 40x for research and cytology scanning applications.
Add an optional 50x OIL objective, the finest objective available, for the highest resolution and to double the field-of-view of the 100x OIL objective. Plus, users can stay in oil while scanning under 50x then flip to the 100x for a closer look at a questionable cell, without fear of dipping the 40x objective into oil.
Eyepieces
The 10x/22mm eyepieces are the largest and widest-viewing eyepieces in this microscope class. The physical eye-tube diameter is 30mm, much 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, meaning that the eyes stay farther away allowing users to keep their eyeglasses on while using the microscope. Additionally, each eyepiece has a built-in diopter adjustment for quick corrections for a weak left or right eye. Finally, two pairs of rubber eye-guards are included…one low-profile set, and one larger set of cups for improving eye position and eliminating stray light.
FRAME
Head
The Siedentopf-type head is inclined 30-degrees for a comfortable user posture. It accommodates interpupillary widths from 50mm to 75mm and can be rotated 180-degrees upward to a higher position for taller users. Choose either a binocular head for routine use or a low-profile trinocular head for mounting any C-mount or eyetube-type camera. The trinocular head comes complete with both C-mount and eyetube pipes, which are often high-cost accessories from other major micro- scope brands.
Stage
The large, graphite-coated mechanical stage stands up to years of wear and tear. The rackless, belt-drive system allows the stage to operate smoothly, comfort- ably, and safely by eliminating the left and right projec- tion of the gear track as on traditional microscopes. This stage will accommodate two slides at once, for faster scanning and comparisons. Adjustable friction can be set for lighter or firmer coarse focusing, eliminating stage drift.
Ergonomics
Its ergonomic, durable design ensures comfort and dependability for hours of daily use. The narrow front and low controls allow for arms and hands to rest flat on the table, reducing arm and shoulder strain. The rubber feet and wide rear footprint keep the microscope stable and reduce vibration for steady viewing. The built-in cord wrap keeps the lab counter neat, and the handle in the neck makes the Innovation easy to move and store.
ILLUMINATION
LED
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. The LED bulb lasts approximately 50,000 hours, which could be up to 20 years under normal clinical use. The bulb generates very little heat as opposed to the traditional halo- gen models, and it uses a tenth of the energy. Save money on both reduced energy costs and bulb replacements.
Condenser
The ABBE condenser is easily aligned within its holder using the two alignment thumbscrews, ensuring a centered field of light. Calibrated indicator marks 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.