Reports claim Scientists are developing a new ultrathin lens which could lead to smart phones as thin as a credit card.
The new lens is flat, distortion-free and so small that more than 1,500 would fit across the width of a human hair - capable in the future of replacing lenses in applications ranging from cell phones to cameras to fiber-optic communication systems.
(http://images.sciencedaily.com/2012/09/120919125606.jpg)
image:sciencedaily
Existing lenses are not thin or flat enough to remove distortions, such as spherical aberration, astigmatism and coma, which prevent the creation of a sharp image.
Correction of those distortions requires complex solutions, such as multiple lenses that increase weight and take up space. To overcome these challenges, the scientists sought to develop a new superthin, flat lens.
The lens surface is patterned with tiny metallic stripes which bend light differently as one moves away from the centre, causing the beam to sharply focus without distorting the images.
When the new lens is properly redesigned, it will use broad-band light. The current version is designed to operate within specific wavelenght. Technology takes a step higher everyday.
ref:indiatimes
Technology crazies on course again, it will be an innovative invention when its finally achieved.