-
Exciting news! With our new Ad-Free Premium Subscription you can enjoy a distraction-free browsing experience while supporting our site's growth. Without ads, you have less distractions and enjoy faster page load times. Upgrade is optional. Find out more here, and enjoy ad-free learning with us!
how can I answer?
- Thread starter peter123
- Start date
- Status
Neillythere
Senior Member
- Joined
- Mar 10, 2008
- Member Type
- Interested in Language
- Native Language
- British English
- Home Country
- England
- Current Location
- Thailand
A diopter/dioptre is indeed the power of a lens:
Dioptre - Wikipedia, the free encyclopedia
A dioptre, or diopter, is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres (that is, 1/metres).
Dioptre - Wikipedia, the free encyclopedia
A dioptre, or diopter, is a unit of measurement of the optical power of a lens or curved mirror, which is equal to the reciprocal of the focal length measured in metres (that is, 1/metres).
Anglika
No Longer With Us
- Joined
- Oct 19, 2006
- Member Type
- Other
It is not a question most people here expect to have to answer. They generally just know that their glasses are stronger than before. The specification is regarded as only important to the opticians.
- Status
