2. Experimental Setup
In this work, the OLM is reconstructed from ordinary reflected light microscope that shown in Figure (1) by replacing a light source with He-Ne laser (632.8nm, 4mW) as shown in Figure (2) .
The Laser light enters the objective lens of a microscope through a pinhole. An image of the pinhole is focused on the plane of the object. The beam impinging on the object is reflected from it, and an image of the illuminated spot on the object is focused on the pinhole. The light passes through the objective lens to a digital CCD camera. The outputs from a digital camera became maximum when the object is located at the focus of the lens. The image