|1.) Ocular Lens (Eyepiece)||Magnifies objects 10x.|
|2.) Low-power Objective Lens||Magnifies the image 10x or 4x|
|3.) High-power Objective Lens||Magnifies the image 40x or 43x|
|4.) Nosepiece||Holds the objectives & can be turned to change from one magnification to the other.|
|5.) Body Tube (Monocular Tube)||Maintains the correct distance between the ocular lens & the objective lenses.|
|6.) Course Adjustment Knob||Moves the Body Tube or Stage up & down to allow focusing of the image.|
|7.) Fine Adjustment Knob||Moves the Body Tube or stage slightly, to bring the image into sharper focus.|
|8.) Stage||Supports the slide with the specimen being viewed.|
|9.) Stage Clips||Holds the slide in place for viewing.|
|10.) Diaphragm||Controls the amount of light coming through the stage.|
|11.) Light Source||Provides a light for viewing the specimen on the slide.|
|12.) Arm||Supports the Body Tube.|
|13.) Base||Supports the entire Microscope|
|14.) Magnification||The ability to make an image appear larger (look bigger) than it really is.|
|15.) Powers of Magnification||
Are written with the multiple of increased size with an "X". (10x = looks 10 times larger)
|16.) Use of Compound Light Microscope||
- Turn on Light Source.
- Turn Nosepiece to select desired Objective Lens. (It is best to select the lowest power lens 1st.)
- Look through Ocular Lens.
- Use Course Adjustment Knob to focus.
|17.) Calculating Magnification for Compound Light Microscopes||
= When using a Compound Light Microscope, the image being viewed is magnified by both the Ocular Lens & an Objective Lens.
- The product of the Magnification of the Ocular Lens & the Magnification for the Objective Lens gives you the Total Magnification for the image being viewed.
|18.) Care & Maintenance of Microscopes||
- Only use Lens Paper to Clean the Lenses! (Tissues, Paper Towels, etc... will scratch the lenses.)
- Always turn the Course Adjustment Knob Slowly! (So you don't break the microscopes, crack the lenses or crack the slides.)
- Be careful when rotating the Nosepiece, to change the Objective Lenses. (You may need to lower the stage 1st.)
- Always use 2 hands to carry Compound Microscopes. (1 hand on the arm & 1 hand on the base.)
|19.) Compound Light Microscope||Uses light with 2 or more lenses, to magnify an object.|
20.) Simple Light Microscope
(Magnifying Glass & Hand Lens)
|Uses light & only 1 lens to magnify an object.|
|21.) What is an Electron Microscope?||Uses a beam of electrons to magnify an object.|