What a simple concept, I'm not sure why it has taken someone so long to 
produce this...
Norm

Roman wrote:
> "The cutting-edge semiconductor process technology can realize the pattering 
> of an array of digital-microlenses made of an inorganic material in 
> subwavelength dimensions. A digital-microlens can be formed by 
> patterning digitally the inorganic material in concentric rings, which 
> works out as a conventional onchip microlens to gather more light onto 
> the photo diode area. "
>
>
>   


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