microscope definition

Question 1

eyepiece lens

Answer 1

also known as ocular lenses usually 10x. what you looks through to see your specimen. interocular distance is adjustable so that you can keep both eyes open when looking into microscope.

Question 2

body

Answer 2

the body refers to main section of microscope minus the stand (base) or any illuminators. body components generally include the eyepiece and objectives lenses, but not the focusing block.

Question 3

arm

Answer 3

the arm is the area of the microscope between the tube and the base. to carry a microscope, grip the arm with one hand and place the other hand underneath the base

Supports microscope when carried

Question 4

nosepiece

Answer 4

also called revolving nosepiece or turret, this structure holds the objective lenses. rotating it allows the objective lens to be switched.

Question 5

objective lens

Answer 5

the lens closest to the object being viewed is known as the objective lens. each objective lens has a different magnification, including the scanning lens (4x), low power lens (10x), mid power lens (40x), and high power lens (100x)

Question 6

on/off switch

Answer 6

controls the power to the microscope

Question 7

diaphragm

Answer 7

most useful at higher power the diaphragm is typically a five hole disc house under the stage that adjusts the amount of light passing through the stage opening, each opening is a different diameter controlling how much light passes though to help properly illuminate the specimen while also increasing contrast and resolution.

Use diaphragm to adjust amount if light that goes through slide.

Question 8

stage

Answer 8

this area is the main flat surface that holds the slides for observation

Question 9

course focus

Answer 9

the larger of two adjustment knobs that moves the objective lenses closer to, or father away from, the specimen in large steps so up or down

Question 10

fine focus

Answer 10

smaller of two adjustment knobs moves the objective lens closer to, or farther away from, the specimen ij very small steps. it can be used to fine tune the focus on various parts of a specimen after first using the coarse focus to get close.

Moves stage slightly to sharpen focus

Question 11

stage adjustment knob

Answer 11

the mechanical stage allows for adjustment of the slide position forward, backward, and left or right

Question 12

base

Answer 12

the name is the bottom support structure of microscope. to carry microscope, grip the arm with one hand and place the other hand underneath the base

Question 13

kimwipes

Answer 13

paper based cleaning wipes for cleaning lab equipment and instruments, camera lens, electronic components

Question 14

lens paper

Answer 14

this special paper cleaning material is designed to clean less and other gas components without scratching to surface. used to clean sensitive lab equipment.

Question 15

immersion oil

Answer 15

used in 100x or higher objective lens like 1000x total power. a drop is places on cover slip with objective lens lowered until it touches drop. acting as bridge between glass lens and glass slide, oil concentrated path of light to increase the resolution of image.

Question 16

slide

Answer 16

rectangular plate made of plastic or glass used to hold the specimen. sometimes contains depression or well to hold several drops of liquid

Question 17

condenser focus knob

Answer 17

raises and lower the height of the sub stage condenser

Question 18

substage condenser

Answer 18

focuses light on the object

Question 19

condenser disc

Answer 19

A= brightfieqld
DF= dark field
ph1/ph2= phase contrast