- Trinocular compound micro provides high magnification for biological use and educational applications.
- Trinocular viewing head with vertical camera and Siedentopf binocular with interchangeable pairs of 10x widefield and 16x 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.
- Forward-facing nosepiece with 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN achromatic objectives that provide color correction of magnified images; PH10x, PH40x, and PH100x phase-contrast plan objectives for simple phase-contrast viewing.
- Brightfield, halogen illumination with rheostat to control light intensity, and 1.25 NA Abbe condenser with iris diaphragm and rack-and-pinion focus control for precise focus, clear examination, and light control.
- Double-layer mechanical stage with 1mm stage divisions and stage stop; graduated coarse and fine focus with tension control to prevent stage drift.
The Am T490A-PCS compound trinocular micro has a
sliding head, interchangeable pairs of 10x widefield and 16x
widefield eyepieces, a forward-facing nosepiece with four DIN
achromatic objectives, three phase-contrast objectives,
Brightfield and phase-contrast halogen illumination, and a
double-layer mechanical stage with a stage stop to protect slides
and objectives from damage. The trinocular viewing head has a
vertical camera and a compensation-free binocular viewing
head with interchangeable pairs of WF10x and WF16x eyepieces and
sliding head to adjust inter-pupillary distance, a fixed
30-degree vertical inclination to reduce eye and neck strain, and
a 360-degree rotation capability to provide a more comprehensive
view and enable sharing. A Siedentopf binocular head enables the
viewer to change the interpupillary distance without changing the
tube length, eliminating the need to re-focus the image. It has
an interpupillary range of 55 to 75mm to accommodate individual
eye differences, and bi-lateral dioptric adjustment accommodates
individual eye-strength differences. The vertical trinocular port
accepts a camera with a 23mm or C- adapter (camera sold
separately). The forward-facing nosepiece has 4x, 10x, 40xS
(spring), and 100xS (spring, oil) DIN achromatic optical-glass
objectives that combine with the eyepieces to provide color
correction of magnified images. The 40xS objective is spring
loaded to prevent slide damage when focusing. The 100xS
spring-loaded oil-immersion objective uses oil between the
specimen and the objective lens to provide increased resolution
over a standard objective. Three phase-contrast plan objectives
(PH10x, PH40x, and PH100x) combine with the eyepieces to provide
phase contrast at six magnifications. Plan objectives provide
improved focus over the entire range of the viewing field. A
compound micro is used for inspection and dissection of
specimens when two-dimensional images are desired.
The micro has lower (transmitted, diascopic) Brightfield and
phase-contrast 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.
Phase-contrast provides high contrast and visibility without the
use of stains, allowing specimens to be observed in their natural
state without being killed or fixed. Halogen illumination
provides bright light in a concentrated path and has a rheostat
to control light intensity. The 1.25 NA Abbe condenser is ed
on a rack-and-pinion control system, can be adjusted to control
the distance of the light from the stage, and has an iris
diaphragm to optimize the a of light illuminating the
specimen. The double-layer mechanical stage, with 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. A stage stop prevents the stage from coming into
contact with the slide and objectives. The stage is 5-1/2 x 5-1/2
inches (140 x 140mm) and has a traveling range of 2-15/16 x 1-3/4
inches (75 x 45mm). Graduated coaxial coarse and fine focus has a
focusing range of 1-3/16" (30mm) and fine-focus divisions of
0.002mm (0.0000787") that enable measurements to be taken. Focus
knob tension control prevents the stage from drifting out of
focus. The solid-metal enamel-coated body is durable and
resistant to stains and corrosion.
SpecificationsHeadCompound
trinocularMagnification40x-1600xTrinocular port23mm or
C-EyepiecesWF10x, WF16xObjectives4X, 10x, 40xS, 100xS (oil),
PH10x, PH40x, PH100xStageDouble-layer mechanicalLighting
configurationTransmitted (lower)Condenser1.25 NA
AbbeDiaphragmIrisLight sourceHalogen with rheostat,
6V/20WIllumination typeBrightfield/Phase-contrastPower110V
Micros are instruments used to enhance the resolution of an
object or image. Types include compound, stereo, or digital.
Compound micros use a compound optical system with an
objective lens and an eyepiece. Stereo micros show object
depth in a three-dimensional image. Digital micros are used
to display an image on a monitor, rather than looking through a
lens. Micros 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. Micros 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. Micros are widely used in education,
lab research, biology, metallurgy, engineering, chemistry,
manufacturing, and in the medical, forensic science, and
veterinary industries.
United manufactures microscopy equipment and accessories
under the brand name Am. The company, founded in 1996, is
headquartered in Irvine, CA.
What's in the Box?
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* Am T490A-PCS micro with double-layer mechanical stage
* WF10x eyepieces, 23mm, one pair
* WF16x eyepieces, 23mm, one pair
* 4x DIN achromatic objective
* 10x DIN achromatic objective, 20mm
* 40xS DIN achromatic objective, 20mm
* 100xS (oil) DIN achromatic objective, 20mm
* PH10x (0.25) phase-contrast objective and condenser
* PH40x (0.65) phase-contrast objective and condenser
* PH100x (1.25) phase-contrast objective and condenser
* Immersion oil, one bottle
* (3) Color filters; blue, green, and yellow
* Spare halogen bulb
* Spare fuse
* Dust cover
* Power cord
* Instructions