The Trials of Driving at Night
Seeing this article on headlights http://ow.ly/86xZm and looking out of my office window into the gloom reminded me of how important anti reflective coatings are when driving at night.
When light passes through a lens a % is reflected off the front surface, further light is absorbed as the light passes through the lens and more in internally reflected when it hits the back surface of the lens. This means that the amount of light exiting the lens and entering your eye is significantly reduced. An important factor when driving in the twilight or night-time hours.
These reflections cause disruption to vision and cause point sources of light, such as headlights, to “Star” and create Halos all of which is distracting to say the least.
Fortunately help is available in the form of special anti reflection coating designed to reduce the glare to an absolute minimum. Over the years, as technology has improved these have become more and more efficient.
The latest coating from Hoya lenses combines reflection free optics coupled with a tough scratch resistance. Combine this with it’s anti greasing and easy clean properties and you have a lens that is not only optically excellent to look through, but more invisible to look at so looking cosmetically excellent and easy to clean and look after.
Plus it’s guaranteed. It’s no wonder we recommend Hoya lenses to our patients.