Some lenses and light to enlarge the image and is also called an optical or light microscopes is used by the digital compound light microscope. The compound light microscope was credited by the historians to the Dutch spectacle maker, Zacharias Janssen, around the year 1590. The magnifying glass and is good to about ten times magnification is the simplest of the digital compound light microscope. There are two systems of lenses for greater magnification, first is the ocular, or eyepiece lens that one looks into and second is the objectives lens, or the lens closest to the object in the compound light microscope.

The tube connects the eyepiece to the objectives lenses. Supports the tube and connects it to the base is done by the arm. The bottom of the digital microscope and used for support is the base. Illuminator is a steady light source used in place of a minor. The flat platform where you place your slides is called stage. Of course a digital microscope is an excellent way to quickly record results. Images can be used in reports and presentations or shared with others over the internet. In the classroom this allows students to quickly include images in lab reports. It allows teachers to use an image from a laboratory investigation in later assessment; or to have it available for students who missed that lab. One of the most powerful uses for digital microscopy in the schools is for special needs students. Students who have trouble seeing through the eyepiece of a microscope can do their viewing on a computer screen.

Before purchasing or using a microscope better to know the functions of each part. The power of the eyepiece lens is usually ten times or fifteen times. The part that holds two or more objectives lenses and can be rotated to easily change power is the revolving nosepiece or turret. Digital microscopy adds to the tools of the scientist. One of the greatest advantages of some digital microscopy software is the ability to very accurately measure on the microscopic scale. The system is calibrated by capturing the image a precise object (dot or scale) and entering both the size of the object and the magnification of the objective. The software can then calculate the number of pixels on the screen that represent that object. Other specimens can then be measured by entering the magnification of the objective in use and then moving the curser across the part of the image to be measured.

The measurement can be saved right on the image and exported to a spreadsheet for further analysis. There 3 or 4 objectives lenses on a digital compound light microscope of the objective lenses. An adjustment that determines how close the objective lens can get to the slide is called rack stop. Condenser lens are most useful at the highest powers. Diaphragm or Iris has different sized holes and is used to vary the intensity and size of the cone of light that is projected upward into the slide. Focusing the light onto the specimen is called condenser lens. There is no set rule regarding which setting to use for a particular power. To be able to focus your compound light microscope, you need to start with the lowest power objectives lens first and while looking from the side, crank the lens down as close to the specimen as possible without touching it. Once the object’s image is sharp with the low power lens, you should be able to simply click in the next power lens and do minor adjustments with the focus knob. Digital microscopy is the latest technology advance in the field.

Essentially, a digital microscope is a standard light microscope that combined with a digital camera and software, allows microscopic images to be displayed on a computer screen or TV where they can be shared with others, and captured and saved to the computer? hard drive where they can be studied, measured, and manipulated. If the digital compound light microscope has a fine adjustment, turn it a bit. If you look through the eyepiece and focus upward only until the image is sharp and you can’t get it in focus, repeat the process again. Next, continue with subsequent objective lenses and fine focus each time.