Microscope Flashcards
function of eyepiece and proper care
function- contains lens that magnifies (place to view, ocular lens)
care- try to keep both eyes open
function of course adjustment knob and proper care
function- moves stage up or down to focus on object to make it clearer
care- use only when using the lowest power lens
function of fine adjustment knob and proper care
function- brings the object into focus
care- use w/ any lens but mainly with high and medium power
function of revolving nose piece and proper care
function- holds the three objective lens, rotates to choose lens
care- avoid getting it dirty and clean properly
function of stage and proper care
function - supports and holds the slide and allows you to view the object care-keep stage dry
function of diaphragm and proper care
function - has holes that let amounts of light pass, adjusts light
function of stage clips and proper care
function - holds the slide firmly on the stage
function of lamp and proper care
function - supplies the light that passes through the object you are viewing care - if using mirror avoid reflection of direct sunlight in the microscope as this can damage your eyes
function of arm and proper care
function - allows you to carry the microscope securely, support for body tube care - when carrying the arm be sure to have your hand on the base as well
function of base and proper care
function - foundation for the scope care - when carrying be sure to hold the arm and base
how to set up slide and wet mount
a drop of water is used in the specimen between the slide and cover slip. Place a sample on the slide. Using a dropper, place a drop of water on the specimen. Then place on edge of the cover slip over the sample and carefully lower the cover slip into place.
how to bring a specimen into focus
using lower lens, slowly move the stage up until the lens makes contact with the water. Continue focusing with the coarse focus knob until the color or blurred outline of the specimen appears. Finish focusing with the fine focus knob.
the do’s of using a microscope
- carry microscope by arm and base
- always start and end on low power
- adjust diaphram to ensure light is passing through
- clean lens with lens paper only
the don’ts of using a microscope
- don’t get makeup, dust, dirt or food on microscope. keep it covered when not in use
- don’t use the course adjustment knob with the high power lens
- don’t put specimens directly on stage
- don’t touch lens with fingers
low, high and medium magnification
low- 4x10=40
high- 40x10=400
medium- 10x10=100