For their year ending March 2012, Nikon's overall sales broke out like so (numbers are rounded):
- Nikon Precision (semiconductor manufacturing equipment): 209 billion yen, or 24% of the company
- Nikon Imaging (cameras and lenses): 596 billion yen, or 67% of the company
- Instruments (microscopes, etc.): 58 billion yen, or 6% of the company
For their year ending March 2013, Nikon's overall sales broke out like so (numbers are rounded):
- Nikon Precision: 179 billion yen, or 18% of the company
- Nikon Imaging: 751.2 billion yen, or 74% of the company
- Instruments: 53.8 billion yen, or 5% of the company
For the year ending March 2014, here are the numbers:
- Nikon Precision: 205.4 billion yen, or 21% of the company
- Nikon Imaging: 685.4 billion yen, or 69.9% of the company
- Instruments: 65.7 billion yen, or 6.7% of the company
The remainder of their sales were small businesses that they call "other," including eyeglasses. Nikon is unique amongst the remaining well-known Japanese camera companies in that Imaging is the dominant portion of their business. In all the other companies (Canon, Fujifilm, Olympus, Panasonic, Ricoh, Sony) cameras and lenses are well less than half of those companies businesses, in many cases not even a tenth of the overall company.
Nikon indicated in 2013 that they wish to enter the medical business in some form, and would probably use acquisitions to do so. In February 2015 they bought their first medical business acquisition, Optos.