IThe light microscopy Ocular eyepiece Reman fes the image foxmed by the ob ective lens aL lens Body tube Transmis Line ot vision ho image from the ob- ectve iens to the ocular Path of light Objective lenses Prmary Body tube lenses tha! magn ly the spec men Objective Stage Holds the eases in position Condenser Focuses ght througn specimen Condenser anses aphragm Controls the amount of light entering the condenser nato Coarse focusing knob Luminator Lignt source Base wih source of Base (a) Principal parts and functions (b) The path of light(bottom to top) Figure A-6 The Compound Light Microscope. (a)A compound light microscope. (b) The path of light through the compound microscope1.The Light Microscopy