FROM THE house of Nikon have come electric
spectacles that are battery-operated and change 0
from dark to light and
back again at the touch of a button in less than
10 seconds. In contrast, the better
known photochromatic lenses can
take up to an hour to turn clear on
The batteries are hidden next to the hinges of the spectacles beneath switches. The switch on the right is used to turn the lenses dark, while that on the left clears them.
However, there are drawbacks. For one, the spectacles cost a prohibitive $416 for a pair. For another, it is available only in three styles, and that too for men. The third, and perhaps the greatest, shortcoming is that the spectacles are available only with non-prescription lenses, which can be mass-produced; prescription lenses have to be made to order.
We are a voice to you; you have been a support to us. Together we build journalism that is independent, credible and fearless. You can further help us by making a donation. This will mean a lot for our ability to bring you news, perspectives and analysis from the ground so that we can make change together.
Comments are moderated and will be published only after the site moderator’s approval. Please use a genuine email ID and provide your name. Selected comments may also be used in the ‘Letters’ section of the Down To Earth print edition.