Microscopes
Microscopes
Embedded Files
Pointers of the Microscope
- Before the invention of the microscope, no one knew of the microscopic world.
- Antonie Van Leeuwenhoek perfected the lenses.
- It must be carried properly/professionally at all times
- It is very expensive to replace or buy depending on the brand.
The Important Properties of Microscopes:
1. Magnification - the power of the microscope to zoom into the image of an object.
2. Resolution - the power of the microscope to show the details clearly.
Parts of a Microscope
- Ocular Lens
Part of the microscope that you look through to magnify small objects.
Contains lenses that gives to the total magnification.
Power of 10x (magnifies 10 times)
2. Body Tube or Eyepiece Tube
2. Body Tube or Eyepiece Tube
Part of the microscope which looks like a narrow tube that is connected to the Ocular Lens and Objective Lens from a far distance.
3. Nosepiece
3. Nosepiece
This part of the microscope holds the objective lens.
It revolves the objective lens so you can see it in different ways by looking through the ocular lens.
Total Magnification
Ocular Lens Objectives Lens
10 x Red 4 x = 40 x
10 x Yellow 10 x = 100 x
10 x Blue 40 x = 400 x
4. Objective Lens
4. Objective Lens
Contains the lenses that gives to the total magnification
FORMULA -----> Total Magnification =
Ocular Lens x Objectives Lens = Total
10 x 40 = 400
5. Arm
5. Arm
The arm is the part of the microscope that supports the body tube.
6. Base
6. Base
The job of the base is to support the whole microscope
Tip - When carrying the microscope, keep your hand back of the base because the lamp will be hot.
7. Stage
7. Stage
It is like a tray-like-structure that supports the specimen slide over the Stage Opening.
8. Stage Clips
8. Stage Clips
These Stage Clips help by holding down the Specimen Slide tight against the Stage.
9. Specimen Opening
9. Specimen Opening
It allows light to travel, coming out of the Light Source through/around the specimen.
10. Diaphragm
10. Diaphragm
This part of the microscope controls the amount of light that reaches your eye.
11. Light Source
11. Light Source
This provides the light to create an image you can see through the Ocular Lens.
12. Coarse Adjustment
12. Coarse Adjustment
It is the larger knob located on the microscope that moves 1 of 3 structures which are the Body Tube, Stage or Nosepiece and it allows for rough focus.
13. Fine Adjustment
13. Fine Adjustment
It is the smaller knob on top of the Coarse Knob and it moves the Objective Lens slightly and allows for fine focusing.
Page updated
Google Sites
Report abuse