Nazetaro's Room

Full coverage of SUMITA

Dr. Nazetaro’s Lesson ”Basics of Optical Glass”

Matt

Doctor, first of all, what does the SUMITA Optical Glass do?
Naze Taro

SUMITA Optical Glass is a manufacturer of optical glass. It conducts Research and Development of new optical glass materials and products, manufacture and sales of optical glass all in house.
Matt

Wow.
What is Optical Glass, by the way?
Naze Taro

Optical glass may sound unfamiliar to you. OK, Matt, give me some examples of glass products around you.
Matt

Window glasses, glass cups, glass bottles, camera lenses…
Naze Taro

Good, there are many glass products used in our lives. Optic glass is the material for finished lens products such as cameras, telescopes, and microscopes.
Matt

I see. I went to a camera shop and was surprised that camera lenses were very expensive. On the other hand, glass cups are much cheaper although they use more glass materials. Why camera lenses are more expensive compared to others?
Naze Taro

Because optic glasses and ordinary glasses are made in a different way. Let’s talk about it next time.