9.0 Optical instruments

9.1 Spectrometer
9.2 Simple microscope
9.3 Compound microscope
9.4 Astronomical telescope (Refracting type)
9.5 Terrestrial telescope
9.6 Galileo's terrestrial telescope
9.7 Reflecting type telescope

Optical instruments are the devices which processes light wave to enhance an image for more clear view. You use an optical instrument usually to make things bigger and to see fine details of objects with the help of something very simple like a magnifying glass or any complicated device like microscope or telescope.

1. Spectrometer

2. Simple microscope

3. Compound microscope

4. Astronomical telescope

5. Terrestrial telescope

6. Galileo's terrestrial telescope

7. Reflecting type telescope