Download Microscope Notes

Microscope Notes
Eye Piece
Eye Piece
Also called the Ocular
 The part of the microscope you look
through to see an image.
 The eye piece magnifies what you are
looking at 10 X’s

Eye Piece
Arm
Base
Arm and Base
The arm and base are used to hold the
microscope.
 You should always use two hands one on
the arm and one under the base.

Eye Piece
Arm
Coarse Adj.
Base
Coarse Adjustment
The coarse adjustment knob is used to
‘find’ an object. It is the first adjustment
you use to focus on an object.
 This may not make the image clear-- it
only lets you see that there is something
there.

Eye Piece
Arm
Coarse Adj.
Fine Adj.
Base
Fine Adjustment
The fine adjustment knob ‘fine tunes’ what
you are looking at.
 You use this knob after the coarse
adjustment to make the image more clear.

Eye Piece
Objectives
Arm
Coarse Adj.
Fine Adj.
Base
Objectives

The objectives are used to magnify what
you are looking at. There are 3 objectives
High power :
 Medium power:
 Low power:

40X’s magnification
10X’s magnification
4X’s magnification
Total Magnification

To determine total magnification you must
multiply the eye piece by the objective.

Low Power
10 X 4 = 40X (total magnification)
 10 X 10 =
 10 X 40 =

Eye Piece
Objectives
Stage
Base
Arm
Coarse Adj.
Fine Adj.
Stage
This is where you put the object to be
viewed.
 We will use slides with object on them, so
the slide will be place on the stage with
the object directly over the hole in the
stage.

Eye Piece
Objectives
Stage
Diaphragm
Base
Arm
Coarse Adj.
Fine Adj.
Diaphragm

Used to adjust the amount of light that
comes through the stage.
Eye Piece
Objectives
Stage
Diaphragm
Light Source
Base
Arm
Coarse Adj.
Fine Adj.
Eye Piece
Objectives
Stage
Diaphragm
Light Source
Base
Arm
Coarse Adj.
Fine Adj.
Stage Clip
Stage Clip

Are used to hold the slide in place.