What is it ?

Who are they ?

ALIMMATUS FIRMANSYAH, S.Pd. MICROSCOPE ALIMMATUS FIRMANSYAH, S.Pd.

Sub Topic The History Of Microscope The Main Function of An Optic (Light) Microscope The Kind Of Microscope The Part Of An Optic (Light) Microscope The Function Of Each Part An Optic (Light) Microscope The Proper Step of Use An Optic (Light) Microscope

The HISTORY OF MICROSCOPE Many people experimented with making microscopes Was the microscope originally made by accident? (Most people were creating telescopes) The first microscope was 6 feet long!!! The Greeks & Romans used “lenses” to magnify objects over 1000 years ago. Hans and Zacharias Janssen of Holland in the 1590’s created the “first” compound microscope Anthony van Leeuwenhoek and Robert Hooke made improvements by working on the lenses

Anthony van Leeuwenhoek The “First” Microscope Zacharias Jansen 1588-1631 Robert Hooke 1635-1703 Anthony van Leeuwenhoek 1632-1723 Hooke Microscope

The MAIN FUNCTION OF An optic (light) MICROSCOPE To magnify the microscopic object

Optic (Light) Microscope The kInd OF MICROSCOPE Optic (Light) Microscope Stereo Microscope Electron Microscope

The Part OF an optic (Light) MICROSCOPE Ocular Lens (Eyepiece) Microscope Body (Tube) Coarse Focus Knob (Macrometer) Revolving Nosepiece (Revolver) Fine Focus Knob (Micrometer) Objective Lens Arm Stage Stage Clip Diaphragm Mirror Base

The Function Of Each Part An Optic (Light) Microscope NAME OF PART MICROSCOPE THE FUNCTION OPTIC OR MECHANIC Ocular Lens (Eyepiece) To enlarge the image from the objective lens and make illusory image that is upright and magnified (near the eye’s observer) OPTIC PART Objective Lens To magnify the image of the microscopic object make a real image that is reserved, and magnified (near the object) Diaphragm To regulate the amount of light Mirror To reflect light from a light source

The Function Of Each Part An Optic (Light) Microscope NAME OF PART MICROSCOPE THE FUNCTION OPTIC OR MECHANIC Microscope Body (Tube) To connect the ocular lens to the objective lens M E C H A N I Revolving Nosepiece (Revolver) To replace the objective lens to be used in a way to rotate it Coarse Focus Knob (Macrometer) To quickly move the micrscope body (tube) up and down Stage As a place to put on the object to be observed Fine Focus Knob (Micrometer) To slowly move the microscope body (tube) up and down Base To support and hold the microscope firmly in position Stage Clip To hold or clamp the preparation glass (specimen) to be observed Arm Supports the body tube and as a handgrip while moving the microscope

HOW TO CARRY An Optic (Light) Microscope CORRECTLY Always carry it with both hands Hold the arm with one hand and place the other hand under the base for support  

HOW TO put An Optic (Light) Microscope CORRECTLY Always put it on place with flate area Don’t put it on wave area  

How The STEP OF Proper Use An Optic (Light) Microscope Hold the arm with one of your hand Always start with the lowest power objective lens by turn the revolving nosepiece so that is "clicked" into position Adjust the mirror to reflect the light by positioning the mirror directly to the light Place the microscope slide on the center of stage and fasten it with the stage clips Using the coarse focus knob (macrometer), lower the objective lens down as far as it will go without touching the slide! Note: Look at the slide and lens from the side when doing this Look through the ocular lens and adjust the mirror and diaphragm for the greatest amount of light Slowly turn macrometer so that the objective lens goes up (away from the slide) until the image comes into focus Move the microscope slide to find the selected target image Adjust micrometer to get the clearest image If you should get more focusing image with high magnification objective lens, you should repeat steps 5 through 8  

How to keep An Optic (Light) Microscope Raise the tube Change the objective lens with low magnification lens into “clik” position Remove the microscope slide Cover the microscope with plastic bag  

Magnification To determine your magnification…you just multiply the ocular lens by the objective lens Ocular 10x Objective 40x:10 x 40 = 400 So the object is 400 times “larger” Objective Lens have their magnification written on them. Ocular lenses usually magnifies by 10x