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microscope

QuestionAnswer
The instrument designed to produce magnified visual or photographic images of objects too small to be seen by the naked eye Microscope
Combination of two words: “micro” meaning small and “scope” meaning view Microscope
He was a Dutch naturalist and craftsman who made over 500 microscopes and discovered bacteria and protozoa Anton van Leeuwenhoek
Invented the first compound microscope in 1595 Jansen Brothers
Increase in the apparent size of an object Magnification
Measure of the clarity of an image Resolution
Ability of an optical instrument to show two close objects as separate Resolution
Microscopes that use light to transmit the image to the eye Light microscopes
An optical instrument with two-lens system: objectives and eyepiece Compound microscope
Permits viewing of opaque objects and magnifies up to 30x Dissecting microscope
Microscopes that use electrons instead of light for very high magnification Electron microscope
Uses a high-voltage electron beam to view very thin specimen sections Transmission Electron Microscope (TEM)
Produces 3D images of specimen surfaces by detecting secondary electrons Scanning Electron Microscope (SEM)
Parts of microscope that support or hold other parts Mechanical parts
Small cylinder attached to the upper part of the body tube that holds the ocular Draw tube
Cylinder that connects draw tube to the microscope and serves as passageway of light Body tube
Connects base and body tube, serves as handle for carrying Arm
Platform that holds the glass slide containing the specimen Stage
Holds the glass slide firmly on the stage Stage clips
Adjusts the amount of light entering the condenser Diaphragm
Larger knob used to bring object into focus under scanner and LPO Coarse adjustment knob
Smaller knob used for slow movement of the stage for fine focusing under HPO and OIO Fine adjustment knob
Carries objectives and turned to select appropriate lens Revolving nosepiece
U- or V-shaped part where the microscope firmly rests Base
Parts of microscope that enlarge specimen using lens system Magnifying parts
Lens with magnifying power of 5x or 10x where observation is made Eyepiece (Ocular)
Lenses attached to revolving nosepiece for magnification Objectives
Shortest cylinder (red) for very low magnification (5x) Scanner objective
Shorter cylinder (yellow) used to observe general outline (10x) Low Power Objective (LPO)
Longer cylinder (blue) used to study detailed parts (40x) High Power Objective (HPO)
Longest cylinder (white) with very small lens opening used with oil (100x) Oil Immersion Objective (OIO)
Parts that collect and concentrate light to the specimen Illuminating parts
Mirror with planar and concave sides used to reflect light through object and lenses Mirror
Created by: user-1909129
 

 



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