The AmScope M620B monocular compound microscope has interchangeable 10x widefield and 20x widefield eyepieces, a forward-facing nosepiece with four DIN achromatic objectives, LED illumination, coaxial nested coarse and fine focus, a 1.25 NA Abbe condenser, and a double-layer mechanical stage. The monocular viewing head has a fixed 30-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to enable sharing. An anti-mold head preserves optics in high-humidity areas. The forward-facing revolving nosepiece has 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN achromatic objectives that provide color correction of magnified images. The 40xS and 100x S objectives are spring loaded to prevent damage to the slide or objective when focusing. The 100xS oil objective provides increased resolution over a standard objective. The fully-coated optical system provides sharp, high-resolution images. A compound microscope is used for inspection and dissection of specimens when two-dimensional images are desired.

The microscope has lower (diascopic) Brightfield illumination that transmits light up through the specimen for enhanced visibility of translucent and transparent objects. Brightfield (BF) illumination allows the specimen to absorb light, resulting in a dark image on a light background. LED illumination provides bright, cool light for working with temperature-sensitive or live specimens. The 1.25 NA Abbe condenser can be adjusted to control the distance of the light from the stage and has an iris diaphragm to optimize the amount of light illuminating the specimen. The condenser is controlled using a spiral mechanism. The mechanical stage has 1mm stage divisions, locks the slide into place, and provides precise slide manipulation along the X- and Y-axis to allow coordinates to be recorded, enabling the viewer to return to a specific location on the slide. It has a traveling range of 2-13/16 x 1-3/16 inches, and is 4-5/8 x 5 inches (118 x 127mm) (W x D; where W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back). Nested coaxial coarse and fine focus eases focusing for left- and right-handed viewers, and a rack-and-pinion mechanism provides precise and secure focusing. Focus tension control prevents stage drift. The metal frame has a stain-resistant enamel finish for durability and to ease cleaning.

SpecificationsHeadMonocularEyepiecesWF10x, WF20x (23mm)Lenses10x, 20x, 40xS DIN achromatic (20mm)StageMechanicalFocusBilateral coarse and fineCondenser1.25 NA AbbeLight sourceLEDDiaphragmIrisIllumination typeBrightfield (BF)Power110-240VAC, 50/60HzStage dimensions4-5/8 x 5 inches (W x D)Stage traveling range2-13/16 x 1-3/16 inches (W x D)

W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Microscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.

United Scope manufactures microscopy equipment and accessories under the brand name AmScope. The company, founded in 1996, is headquartered in Irvine, CA.

What's in the Box?

AmScope M620B monocular microscope with mechanical stage
WF10x eyepiece, 23mm
WF20x eyepiece, 23mm
4x DIN achromatic objective, 20mm
10x DIN achromatic objective, 20mm
40xS DIN achromatic objective, 20mm
100xS (oil) DIN achromatic objective, 20mm
Stage clips, pair
Dust cover
Power adapter
Instructions

M620B Compound Monocular Microscope, WF10x and WF20x Eyepieces, 40x-2000x Magnification, Brightfield, LED Illumination, Abbe Condenser, Mechanical Stage, 110V

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