Designer touts 'super sight' sunglasses
Fresnel lenses boost field of view by 25 per cent
Hindsight, as they say, is a wonderful thing. So a designer’s crafted a pair of sunglasses that he's claimed will extend your field of vision.
May's Fresnel lens glasses: widen your horizons
Although the specs would have base-curve nine lenses at the front, designer Billy May said the specs would also incorporated Fresnel lenses into their sides. These would give the wearer a 25 per cent wider field of vision, he reckons.
Crossing junctions could become safer
The upshot is that a cyclist, say, would be able to see traffic rapidly approaching from the sides that his or her unaided peripheral vision might not pick up.
Fresnel lenses have a concentric ring structure that gives them the same optical properties as convex lenses without the thickness.
Traditionally, they've been used in lighthouse glass so that the focusing can be done without the need for monstrously thick and heavy lenses, but you can also see Fresnel's influence in thin, credit-card sized magnifiers and in theatre spotlights.
Is there an editor in the house?
It didn't fix the author's blurred grammar.
with the car accelerating through a red light, driving on the wrong side of the road and heading straight for him, I would suggest the cysclist is screwed with or without those glasses...
When OPEC cut production...
...and the economy crumbles, you'll all have to think twice about your motoring addiction. Your world is falling apart and no one will tell you it's all going to be ok.
That aside, can people not just turn their heads to look around?
I never cycle on the pavements, I just wish 'pod'estrians would stay out of the road.
@ Rodrigo Valenzuela
Motorists are physically isolated from the outside world in their little boxes so low down to the ground, heaters and music turned up, GPS telling them where to go, mobile in hand on most occasions. The pretty girl on the corner is the last of your worries.
but not in this universe.
An afocal convertor is a multiple element design which could not be implemented like this, fresnel or whatever. In short, it is complete bollocks.
The "designer" hasn't implemented anything except some attractive but flawed drawings. While stylishly executed, they are not real, nor will they ever be. The designer does not understand what a fresnel lens is or does, or the optical requirements of acheiving his goal - the pictures might as well be of glasses that can see through walls or into the future, and, as I say, I am surprised this chaff made it through the BS dectectors.