A microscope is a device that can magnify and observe small objects. It is used when inspecting semiconductors and electronic components, when observing microorganisms and substances, etc. The device incorporates two types of convex lenses, called eyepieces and objectives. It is also a characteristics of microscopes that the type differs depending on the observation target. A stereo microscope is suitable for observing a sample as it is, and a biological microscope is useful for observing bacteria and living tissue. In addition, the type of observation varies depending on the observation direction and microscopes with observation from above is called an upright microscope, and observation from below is called an inverted microscope. Some models have a monitor and microscope combined, use a white LED light source, or have a conductive mat to prevent static electricity, etc.