Let’s build a cell phone Microcope

S1230078 Riyo Nakayama http://www.sciencebuddies.org/science-fair-projects/project_ideas/

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Necessary thing 1

�  Bicycle inner tube

�  Ball lens (1mm diameter)

�  Toilet paper tubes 2

�  Alligator clip cables

Necessary things 2

�  Disposable gloves

�  Paper towel

�  Pushpin

�  Tweezers

�  mini incandescent bulb

Necessary things 3

�  AA batteries

�  8xAA battery holder

�  Cell phone

1. Cut a bicycle inner tube

� You must put on disposable gloves.

� Cut a 3x3 centimeter piece

Supplement

� Bicycle inner tubes have lubricant. So clean up lubricant if you have dripped.

� Dispose of the inner tubes, after you cut

2. Wash them

� Wash the rubber with water

� Dry it with paper towel

� Cut the rubber into four pieces

3.Make a hole

� Make a hole with pushpin

� Be careful the size, the hole is large enough to fit the ball lens

4.Position a cell phone

� Set the iris centrally on the top of the cell phone’s camera lens

� Don’t touch without gloves

5. Create a stand

� Need plenty of light to maximize image quality

� Make two notches directly across from each other on the side and bottom of the paper tube

6. Make light

�  Use alligator clip cable

�  Connect end of them to the leads of the mini incandescent bulb

�  Connect the other ends of them from the battery pack

�  Make sure that light up

7. Create paper tube

�  Cell phone microscope don’t steady

�  Attach the cable to paper tube

�  Attach paper tube to the middle of the cell phone

8. Set cell phone microscope

�  Confirm the mini incandescent bulb lights up

�  Reinforce the cell phone microscope with cellophane tapes

Test cell phone

�  Aggrandize cell phone camera

�  If you are able to see by cell phone camera, you can complete!

Very useful!

If you use this, you can see small thing without microscope!