Immersion Oil

Of an oily nature and has a defined refractive index of about 1,516. It is important that the refractive index (nD) is about 1.5, similar to that of glass. This enables a homogeneous oil immersion to be achieved. Immersion media are used in conjunction with immersion objectives and are located between the surface of the specimen and the lens of the microscope. Immersion oils practically eliminate light beam deflection so that the effectiveness of the lens is considerably increased.