VanGuard 1323PHI Brightfield, Phase Contrast Clinical Microscope with Binocular Head, Halogen Illumination, 10X, 20X, 40X, 100X Magnification, 360 Degree Viewing Angle

The VanGuard 1323PHi clinical microscope has binocular viewing heads, Brightfield, darkfield, and phase contrast configurations, integrated Koehler illumination, plan achromatic objectives, a Zernike phase annuli condenser, and magnification abilities of 10X, 20X, 40X, and 100X, for a variety of applications. This microscope enhances object or image resolution, and is commonly used in diagnostic and educational applications in medical and veterinary clinics, universities and industrial laboratories.

This microscope features binocular viewing heads, which ease eye strain and provide a more comprehensive view. The heads are fixed vertically at 30 degrees, and rotate 360 degrees. The unit has 55-75mm interpupillary adjustment for individual eye spacing, and - 6 to + 6 dioptric adjustment capabilities to compensate for the difference in viewing ability between each eye. This microscope features Deutsches Institut für Normung (DIN)-standard plan achromatic objective lenses, which correct for red and yellow chromatic aberrations and sharpen images. Adjustable resolution provides resolvant options of 10X (0.25 NA), 20X (0.40 NA), 40X (0.65 NA), and 100X (1.25 NA). Integrated Koehler illumination controls brightness, and Brightfield illumination controls light from below, allowing a specimen to absorb light for clear illumination. Darkfield and phase contrast illumination configurations enhance contrast, and produce clearer images of opaque or unstained objects. The unit adjusts light through a 1.25 numerical aperture (NA) Abbe condenser with an iris diaphragm. A Zernike phase annuli condenser has 10X, 20X, 40X, and 100X objectives. The condenser is mounted on a rack and pinion focusing mechanism, and the unit has a filter holder on the collector. The unit has 20-watt variable quartz halogen lighting. The eyepieces have a high eyepoint (20mm field diameter), and rubber eyecups to block out external light interference.

The 1323PHi has a rectangular, chemical-resistant, mechanical stage with rack and pinion assembly, and an X-Y, right-hand, drop-down control. It has a removable, spring-clip slide holder mechanism for specimen maneuverability, and a cross travel range of 75 x 50mm (W x D). A coaxial, low-position mechanism controls focus motion. The unit has coarse- and fine-focus adjustment controls with a 40mm focusing range, and 0.002mm precision. Auto-stop and tension control mechanisms protect the gears. The reverse-pitch nosepiece has secure, positive stops, and four rotation positions to support a range of magnification. The microscope has a stain-resistant and durable cast metal body with an enamel finish, and anti-skid rubber feet to prevent slipping. It comes with a clear diffusing filter, a blue filter, a green filter, a telescoping eyepiece, spare lamp and fuse, a dust cover, a six-foot power cord, and instructions.

Specifications

Optical magnification	10X (0.25 NA), 20X (.40 NA), 40X (0.65 NA), and 100X (1.25 NA) (oil immersion method)
Optical system	VanGuard infinity-corrected optics (VIOS)
Viewing head	Binocular
Illumination	Brightfield, darkfield, phase contrast
Objectives	Plan achromatic
Eyepiece	10X widefield
Field diameter	20mm
Condenser	1.25 NA Abbe; 10X, 20X, 40X, and 100X Zernike phase annuli
Stage	Rectangular, mechanical
Stage dimensions	160mm x 140mm (W x D)
Overall dimensions	400mm x 190mm x 370mm (H x W x D)
Base dimensions	175mm x 225mm (W x D)
Weight	6.8kg
Fuses included	0.50A, 250V
Power source	110V

H is height, the vertical distance from lowest to highest point; 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 viewing abilities. A trinocular eyepiece is used to output digital images to an internal or external device such as a camera or monitor. 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 use 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.

Vee Gee Scientific manufactures laboratory equipment and supplies, and makes the VanGuard brand of products. The company, founded in 1981 and headquartered in Kirkland, WA, offers scientific equipment for educational, professional, and industrial applications.

What’s in the Box?

• 1323Phi microscope
• Telescoping eyepiece
• Blue filter
• Green filter
• Spare 20-watt halogen lamp
• Spare 0.50A, 250V fuse
• Six-foot power cord
• Dust cover
• Instructions