**3.1 Introduction**

*Solar Cells - Theory, Materials and Recent Advances*

**2.7 Collecting all the components together**

It magnifies the image formed by the objective. This image is formed below the

As seen in **Figure 4** all the component of photovoltic were collecting together, solar panels generate power when solar energy is available, the regulator to prevent batteries' damage, the battery for storing collected energy to be used later,

plane of the slide. **Figure 3** shows an electrical circuit of microscope:

3.Eye-pieces

**444**

**Figure 3.**

*Microscope' circuit diagram.*

**Figure 2.**

*Parts of microscope [13].*

This chapter contains experimental procedure and measurement which has been recorded during the testing period medical devices operating solar (For example: microscope). In addition it presents operational problems.
