Em lang thang trên mạng đọc được topic này. Thấy cũng thú vị., các nhà vật lý học của Harvard School of Engineering and Applied Sciences làm ra "lens phẳng" lấy nét không bị quang sai. Tương lai lens góc rộng đây saooo....

"The flat lens eliminates optical aberrations, such as the “fish-eye” effect that results from conventional wide-angle lenses, astigmatism and coma aberrations. The resulting image or signal is completely accurate and does not require any complex corrective techniques. The potential future would be to replace all the bulk components in most optical systems with flat surfaces."

From: http://www.novuslight.com/flat-lens-...mage_N229.html