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21 Cards in this Set
- Front
- Back
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It is the tubular, hollow part attached to the upper part of the arm of microscope. It can be moved up and down with the help of adjustment knobs. |
Body tube |
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It is the cylindrical structure on top of the body tube that holds the ocular lens |
Draw tube |
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It is a circular and revolving metallic part attached to the lower end of the body tube. It has holes in which objective lenses can be fitted. |
Revolving nosepiece |
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It is the basal, horse shoe-shaped structure. It provides support to all the remaining parts of the microscope. |
Base |
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A small, strong vertical projection developing from the foot or base |
Pillar |
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It is a curves and strong structure used for handling the entire statement |
Arm |
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It is a flat rectangular plate attached to the lower end of the arm |
Stage |
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It is a small tube consisting of lenses, that indicate the relative power of magnification.
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Ocular /Eyepiece |
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It is used for initial location of the specimen. It has 4X magnification. |
Scanning objective |
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It may also be used for initial location of the specimen. It magnifies the specimens 10 X.It views the specimen in a larger field. |
Low Power Objective |
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It obtains greater magnification and views detailed structures of the specimen |
High Power Objective |
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It is used for magnification of extremely small specimens, such as bacterial cells. .In using this, a drop of oil is placed on the slide for better refraction. |
OiI immersion Objective |
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reflects light rays through the object.One side of the mirror is plain (used with natural light); the other is concave (used with artificial light) |
Mirror |
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This part can be adjusted to vary the intensity that is projected through the slide. As there is no set rule on which setting to use for a particular power, the setting depends on the transparency of the specimen and the degree of contrast you desire in your image |
Iris diaphragm |
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This is a lens that concentrates light to the specimen. |
Condenser |
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Is determined by multiplying the power of the ocular by the power of the objective in use. |
Total magnification |
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It is a small-sized knob. It is used for fine and sharp focussing of the object. |
Fine Focus Knob |
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It is a large-sized used to move the body tube up and down for bringing the object into focus |
Course Focus Knob |
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Two clips are attached to the lower end of the arm. |
Stage Clip |
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A steady light source (110 volts in the US) that shines up through the slide. |
Illuminator/Lamp |
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It lies atop the revolving nosepiece and keeps dusts from settling in the objectives |
Dust shield |
