MICROSCOPE

• BODY TUBE - The head is a cylindrical metallic tube that holds the eyepiece lens at one end and connects to the nose piece at other end. It connects the eyepiece lens to the objective lens. The light coming from objectives will bend inside this tube.
• body tube is also called a HEAD or EYEPIECE TUBE
• OCULAR LENS (EYEPIECE) - is the part of the microscope that magnifies the image produced by the microscope's objective so that it can be seen by the human eye. They are located at the top of the microscope. This part is used to look at the specimen.
• ARM - This is the part connecting the base to the head and the eyepiece tube to the base of the microscope. It supports the head of the microscope and is also used when carrying the microscope.
• BASE is the lowermost part of the microscope that supports the entire microscope structure. It provides stability for the microscope. Illuminators, light switches, and electrical wiring systems are fitted in the base.
• 1.      REVOLVING NOSE PIECE - A nose piece is a movable circular structure that houses all the objective lenses. It is connected to the body tube and lies just above the stage. It can be rotated clockwise or counterclockwise to increase or decrease the magnification. The change in magnification results due to a change in the objective lens.
• revolving turret - is also called the revolving nose piece
• OBJECTIVE LENS - is the lens that is closest to the specimen. They are fitted on the nosepiece.
• Adjustment knobs - are the control knobs used to focus the microscope on the specimen.
• FINE ADJUSTMENT KNOB: It is a smaller knob and is used to move the stage up or down very slowly. The stage covers a very small distance on each rotation of the fine adjustment knob. It is used to sharpen the image. It is mostly used while viewing under high power.
• a)      COARSE ADJUSTMENT KNOB: used for focusing the image under low power magnification. It is a larger knob and is used to move the stage up or down very rapidly. The stage is raised or lowered rapidly
• STAGE - This is the section in which the specimen is placed for viewing.
• Mechanical stage - the most common stage which allows the control of the slides by moving the slides using the mechanical knobs on the stage instead of moving them manually.
• STAGE CLIPS - stage clips hold the specimen slides in place.
• Microscopic Illuminator - Another name of light source
• iris - It's also known as the diaphragm
• LIGHT SOURCE - illumes the specimen under observation, so the spectator can easily magnify and observe the details. Once the light falls, it passes through the diaphragm and condenser lens to enhance the focus through an objective lens. This entire process is based on reflection as the light reflects through the objective
• 1.       DIAPHRAGM - It is found under the stage of the microscope, and its primary role is to control the amount of light that reaches the specimen. It's an adjustable apparatus, hence controlling the light intensity and the size of the beam of light that gets to the specimen. For high-quality microscopes, it comes attached with an Abbe condenser, and combined, they are able to control the light focus and light intensity that reaches the specimen