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# Long description

The figure shows a schematic diagram illustrating the path of light and the type of illumination produced by a compound light microscope and the corresponding photograph of a compound light microscope.

The diagram shows the arrangement of lenses and a sample inside the microscope shown as follows from top to bottom: eyepiece, camera, image, objective lenses, sample on stage, condenser lens, and light source.

The light source is located at the bottom, emitting rays that pass through the sample positioned on a flat stage platform above. The objectives, positioned on the rotational nosepiece, focus on these rays.

The resulting image can be observed through the binocular eyepiece lenses. Additionally, a camera is set up at the top to capture the image.

The path of light (from bottom to top): a pair of diverging rays of light emerge from the light source, passes through the condenser lens (convex lens placed below the stage), and converge at a common point on the bottom of the sample placed on a stage.

A pair of diverging rays of light emerge from the top centre of the sample, strike the objective lenses, becomes converging at a common point, and again diverge and strike the eyepiece lens.

The rays then become parallel while passing through the eyepiece. The magnified image is then observed by the eye and captured by the camera attached at the top of the eyepiece.

A photo of a compound light microscope is also shown on the right. The compound microscope shows the following labelled parts from top to bottom: camera, eyepiece, objective, stage, and light source.