Biology Lab 3 Parts of compound binocular light microscope Flashcards
head
supports the 2 sets of magnifying lenses
ocular
lens in the eyepiece which usually has a magnification of 10X
interpupillary distance
distance between the eyepieces
pointer
in the eyepiece to point to an object in the field of view
field of view
circle or light that you can see in the microscope
objectives
lenses on revolving nosepiece
scanning lens
shortest; magnifying power of 4X-5X
intermediate lens
magnifying power of 10X
high-power lens
magnifying power of 40X
oil immersion objective
100X; not used in this lab; should never be used without oil
arm
supports the stage and condesner lens
condenser lens
used to focus the light from the lamp through the specimen to be viewed
adjustment knob
height of condenser can be adjusted using this piece
iris diaphragm
controls the width of the circle of light and the amount of light that passes through the specimen
the stage
supports the specimen to be viewed
stage adjustment knobs
mechanical stage can be moved right and left and back and forth by these parts
coarse and fine focus adjustment knobs
distance between the stage and the objective can be adjusted with these knobs
base
acts as the stand and also houses the lamp
light intensity knob
intensity of the light that passes through the species can be adjusted through this knob
