June 14, 2026 09:00 am (IST)
Follow us:
Google pays homage to Ferdinand Monoyer on his birth anniversary
Mountain View, May 9 (IBNS): Google on Tuesday paid homage to French ophthalmologist Ferdinand Monoyer with a doodle, on the latter's 181st birth anniversary.
Monoyer is known for the introduction of dioptre, which 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).
He is also credited with the invention of Monoyer chart, used to test visual acuity.
The doodle features animated eyes and the acuity chart.
image: Google
Support Our Journalism
We cannot do without you.. your contribution supports unbiased journalism
IBNS is not driven by any ism- not wokeism, not racism, not skewed secularism, not hyper right-wing or left liberal ideals, nor by any hardline religious beliefs or hyper nationalism. We want to serve you good old objective news, as they are. We do not judge or preach. We let people decide for themselves. We only try to present factual and well-sourced news.
Support objective journalism for a small contribution.
Latest Headlines
Son lands Rs. 15 LPA MNC job, father says 'get a government job instead'—Internet divided
Sat, Jun 13 2026
Indian luxury goes global: Taj enters continental Europe with landmark Frankfurt hotel
Mon, Jun 01 2026
Fastrack Perfumes introduces “Carry Your Vibe”
Tue, May 26 2026
Inside Kolkata’s first rooftop Starbucks Reserve: Rare coffee, skyline views and a luxury café experience unlike any other
Sat, May 16 2026
Causes of Hair Fall in Women and How to Treat It
Wed, May 13 2026