Eyepiece Hooke Microscope circa 1670 sk Bearer Basic components and their functions Focusing Screw ctive Figure 1 Specime 1) Eyepiece(ocular lens) 2)Revolving nose piece(to hold multiple objective lenses) (3 Objective lenses (4)And(5)Focus knobs (4)Coarse adjustment Fine adjustment (6 Stage(to hold the specimen) 7) Light source (lamp 8) Condenser lens and diaphragm (9) Mechanical stage(move the specimen on two horizontal axes for positioning the specimenBasic components and their functions (1) Eyepiece (ocular lens) (2) Revolving nose piece (to hold multiple objective lenses) (3) Objective lenses (4) And (5) Focus knobs (4) Coarse adjustment (5) Fine adjustment (6) Stage (to hold the specimen) (7) Light source (lamp) (8) Condenser lens and diaphragm (9) Mechanical stage (move the specimen on two horizontal axes for positioning the specimen)