Light Microscopes Light microscopes use a light that reflects through the stage of a microscope. The correct way to carry a light microscope is by keeping one hang on the arm and one hand underneath the base. The microscope should rest against your body. If you cannot show that you know how to properly transport a microscope then you will no longer be allowed to use it in class.
Why use light microscopes? We use light microscopes to see cells. This week, we will be focusing on cells, their parts, and how to classify cells. Parts of the Cell Theory include: - All living things are made of cells. - All cells come from preexisting cells. - Cells are the basic unit of life. The first person to discover cells was Robert Hooke.
Parts of the Microscope and Their Function On the next slide there is an image of a microscope, very similar to the scopes we use in class. Click on the boxes to see the name and function of each part of the microscope.
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#9 Eye Piece—The part you look at with your eye #9 Eye Piece—The part you look at with your eye. Usually 10 X magnification. Click Here to Return to the Main Slide
#10 Arm – Used to safely transport microscope Click Here to Return to the Main Slide
#11 Stage – Slides are placed on this Click Here to Return to the Main Slide
#12 Coarse Focus Knob – Used to make large changes in focus #12 Coarse Focus Knob – Used to make large changes in focus. NOTE Never use this when viewing on high power Click Here to Return to the Main Slide
#13 Fine Focus Knob – Used to small adjustments of focus Click Here to Return to the Main Slide
#14 Base – Used to safely transport the microscope Click Here to Return to the Main Slide
#1 Body Tube – Reflects light up to the viewers eye Click Here to Return to the Main Slide
#2 Revolving Nosepiece – Allows for quick change of objectives Click Here to Return to the Main Slide
#3 Scanning Objective – The first lens you use when doing proper microscope work. Usually 4 X Click Here to Return to the Main Slide
#4 Low Power Objective – The second lens you use when doing proper microscope work. Usually 10 X Click Here to Return to the Main Slide
#5 High Power Objective – The highest magnification used. Usually 40 X #5 High Power Objective – The highest magnification used. Usually 40 X. NEVER use the course adjustment when using this lens. Click Here to Return to the Main Slide
#6 Stage Clips – Use to keep the slide in place. Click Here to Return to the Main Slide
#7 Diaphragm – Use to vary the amount of light passing through the slide. Usually it is better if the amount of light is low. Click Here to Return to the Main Slide
#8 Light – Sends light up through the diaphragm and through the slide for viewing Click Here to Return to the Main Slide