Swift M3500 Monocular Student Microscope

SWIFT M3500 SERIES MICROSCOPE The Swift M3500 Series microscope is considered to be the most “Student proof” microscope on the market. It is an instrument of optical and mechanical precision and will perform satisfactorily with minimum maintenance.

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MICROSCOPE COMPONENTS ARM - the vertical column (attached to the base) which supports the stage and contains the coarse and fine adjusting knobs and focusing mechanism. BASE - the housing and platform of the instrument to which the arm is attached. The base stands on rubber feet and contains the illuminator assembly. The bulb replacement part number is printed on the underside of the base. COARSE FOCUS CONTROL MECHANISM - this model is a stage focusing model meaning the stage moves up or down by means of a brass rack and steel pinion gear to bring the specimen into focus. The movement is achieved by two large knobs on the sides of the arm. In order to prevent gear damage, the focus control is equipped with a slip clutch that allows slippage at both ends of the focusing range. The system is also furnished with a tension control to prevent “stage drift”. CONDENSER – the condenser is mounted in the stage and it is used in conjunction with the iris diaphragm. The function of the condenser is to provide full illumination to the specimen plane and to enhance the resolution and contrast of the object being viewed. CORD HOLDERS - A pair of half-circle brackets installed on the back of the arm which are used to store the electrical cord. DISC DIAPHRAGM - The wheel-shaped disc attached to the underside of the stage. It has circular openings, called apertures, and may be rotated to align any of the apertures with the optical path. EYEPIECES - the upper optical element that further magnifies the primary image of the specimen and brings the light rays in focus at the eyepoint. The eyepiece has a calibrated POINTMASTER® scale for taking measurements. FIELD CONDENSER - A lens located in the light housing which intensifies the light from the illuminator in the base. FINE FOCUS CONTROL MECHANISM - the fine focusing knobs, located on either side of the microscope, in front of and slightly lower than the 2

coarse focusing knobs, are used for precise focusing adjustments once the specimen has been brought into view with the coarse focus controls HEAD - it is the top portion of the microscope that contains the refracting prisms and the eyepiece tube. The eyepiece is locked onto the eyepiece tube with a set screw. The head rotates allowing operation of the microscope from the front or the back, and allows the microscope to be shared by simply rotating the head. IRIS DIAPHRAGM - a round multi-leaf device mounted below the condenser which is controlled by a lever. It is similar to a camera shutter and controls the amount of light entering the condenser, allowing the user to control contrast. If the image is “washed out” the iris diaphragm is opened too wide. If the image is too dark the iris is not open wide enough. MECHANICAL STAGE - An alternative to stage clips is a Mechanical Stage. A Mechanical Stage holds the slide in place, allowing the user to move the slide on any x/y axis through the manipulation of two control knobs or a co-axial control mechanism. NOSEPIECE - the revolving turret that holds the objective lenses, permitting changes in magnification by rotating different powered objective lenses into the optical path. The nosepiece must “click” into place for the objectives to be in proper alignment. OBJECTIVES - The DIN objectives are standard in the industry, with large numerical aperture (N.A.) to permit maximum resolution. All objectives are achromatic, color-coded and parfocaled at a 45mm distance. The 40XRD and the 100XRD are sealed to keep oil residue from seeping into the objective. These two objectives have a spring loaded tip to prevent accidental breakage of either the slide or front lens of the objective if they should come into contact with each other. Part No. Mag. MA10071F 4X MA10072 10X MA10073S 40X MA10074 100X

N.A. Working Distance 0.10 14.83mm 0.25 6.32mm 0.65 0.5