Introduction to microscopy
Introduction to microscopy

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

Free course

Introduction to microscopy

1 Microscopy

Microscopes come in many different types, each of which has distinct functions and applications. However in a routine histology department, virtually all of the work is done using a light microscope, with transmitted light, meaning that the light passes through the section to the objective lens. This arrangement is sometimes called bright field microscopy, because the background appears bright. Rarely it may be necessary to use incident light, where the section or tissue is illuminated from the same side as the objective and in this case the background appears dark (dark field microscopy). A number of other functions can be done by most light microscopes, but they are rarely used for routine histology. Occasionally, it may be necessary to examine cells at a very high magnification, in which case, it is necessary to use an electron microscope because there is a limit to the magnification that can be obtained using a light microscope.

S210_2

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to University-level study, we offer two introductory routes to our qualifications. You could either choose to start with an Access module, or a module which allows you to count your previous learning towards an Open University qualification. Read our guide on Where to take your learning next for more information.

Not ready for formal University study? Then browse over 1000 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus371