VanGuard 1491INI Brightfield Inverted Microscope with Trinocular Head, Halogen Illumination, 4X/10X/20X/40X Magnification price

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The Van Guard 1491INI inverted microscope includes a trinocular viewing configuration, phase contrast illumination, plan achromatic, infinity objectives, multiple stage inserts, and magnification abilities of 4X, 10X, 20X, and 40X, for a number of applications. This microscope enhances object or image resolution, and is also commonly employed for observation of biological cultures or specimens within well plates, petri dishes, or vials in areas that require a longer working distance, and are generally used in university research as well as in medical and industrial laboratories.

This microscope comes with a trinocular viewing configuration, with two eyepieces to ease eye strain and offer a far more comprehensive view, plus a third head to connect for an external monitor or camera with an alternative viewing option. The binoclular eyepieces have rubber eyecups to block out external light interference. The eyepieces are fixed vertically at 30 degrees, and rotate 360 degrees. The microscope features a 20/80 light split, meaning that whenever 1 / 3 head is used, 20% of the light goes with the third head, and 80% goes towards the user’s eyes from the binocular heads. The unit has 48-75mm interpupillary adjustment for individual eye spacing, and - 6 to + 6 dioptric adjustment capabilities to compensate to the difference in viewing ability in between each eye. It has a VanGuard infinity-corrected optical system (VIOS) for clear images. Adjustable rotation provides Deutsches Institut für Normung (DIN)-standard resolvant options of 4X, 10X, 20X, and 40X (0.10, 0.25, 0.40, and 0.60 numerical aperture [NA]). Plan achromatic objective lenses correct for red and yellow chromatic aberrations and sharpen images. Phase contrast illumination produces clearer images of opaque or unstained objects, and an iris diaphragm controls light diameter. The unit includes a 0.30 numerical aperture (NA) Abbe condenser for higher resolution, with phase slider annuli for 10X, 20X Stop, 40X Stop, and filter stop. It has an open setting for brightfield, and a telescoping eyepiece for phase annuli centering. The condenser is mounted on the rack and pinion focusing mechanism, features spring-loaded centering knobs, and it has an inward-swinging filter holder. The unit has a 30-watt variable quartz halogen illumination with front insert and phase slider. The 1491INI includes a 10X ultra widefield eyepiece magnifier, which locks on on the unit for simplicity of operation, and offers a 22 mm field diameter. The unit has high-eyepoint eyepieces which can be 400 mm high, and have a focal depth (FD) of 22 mm.

The microscope features a rectangular, chemical-resistant, mechanical stage with rack and pinion assembly as well as a long X-Y, right-hand, drop-down control for maneuverability. You can find two auxiliary stages. A circular, glass insert area works using a variety of stage inserts, including those used to support plates dishes, vials, and slides. Examples include 96-well plates, HLA/Teraski plates, 3” x 1” glass slides, and 65mm, 54mm, and 35mm petri dishes. The stage has a cross travel selection of 120 x 80 mm (W x D). Stage dimensions are 250 x 160 mm (W x D), plus a drop-down, right-hand, coaxial mechanism having a rack and pinion drive controls motion. It has coaxial, ultra-low position, coarse- and fine-focus adjustment controls using a 40 mm focusing range, that graduate to two microns per division. Auto-stop and tension control mechanisms protect the gears. The reversed-pitch (inward facing) nosepiece has five rotation positions to aid a selection of magnification. Sample clearance is 75 mm, or might be adjusted to 150 mm in the event the condenser is removed. The microscope has a stain-resistant and durable cast metal body by having an enamel finish, and anti-skid rubber feet. It comes down which has a clear diffusing filter, blue and green filters, a spare lamp and fuse, a telescoping eyepiece, a dust cover, and instructions. The 1493INI has five-year mechanical and optical warranties, plus a one-year electrical warranty.

The 1491INI microscope overall dimensions are 475 x 250 x 515 mm (H x W x D) , and base dimensions are 240 x 320 mm (W x D) . The unit weighs 8.7 kg. Plan achromatic objective specifications are: 4X: 0.10 NA, 25.2mm working distance (WD); Plan achromatic phase specifications are: 10X: (0.25 NA, 11mm WD); 20X: 0.25 NA, 6mm WD; 40X: 0.60 NA 3.2mm WD. It functions with a 0.50A, 250-volt fuse (included), as well as a 110-volt source of energy for illumination, and comes having a six-foot power cord.

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 plus an eyepiece. Stereo microscopes show object depth inside a three-dimensional image. Digital microscopes are utilized to display a picture over a monitor, in lieu of looking via a lens. Microscopes might have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying viewing abilities. A trinocular eyepiece is used to output digital images to an interior or external device such as being a camera or monitor. Magnification ability refers towards the size of an image. Resolution, also called resolvant power, refers to the clarity from the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification via a fixed focus, or by means of a range of adjustments. They can also employ LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely utilized in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and within the medical, forensic science, and veterinary industries.

Vee Gee Scientific manufactures laboratory equipment and supplies, and makes the VanGuard make of products. The company, founded almost 30 years ago and headquartered in Kirkland, WA, offers scientific equipment for educational, research, clinical, and industrial applications.

What’s within the Box?

1491INI microscope
Telescoping eyepiece
Green filter
Blue filter
Clear diffusing filter
Spare 20-watt lamp
Spare 0.50A, 250V fuse
Six-foot power cord
Dust cover
Instructions



Product Features
Inverted microscope for observation of biological cultures or specimens within well plates, petri dishes, or vials in areas that require a longer working distance; frequently used in university research and in medical and industrial laboratories
Trinocular viewing configuration, with two eyepieces to ease eye strain and provide a more comprehensive view, and a third head to connect to an external monitor or camera
Magnification abilities of 4X, 10X, 20X, and 40X for a variety of resolvant options
Brightfield and phase contrast techniques control light from below, allowing a specimen to absorb light for clear illumination, and produce clearer images of opaque or unstained objects using a 0.30 numerical aperture (NA) Abbe condenser for higher resolution
Five-year mechanical and optical warranties, and a one-year electrical warranty




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