Edwards Wildman Palmer LLP
Optical head
Disclosed is an optical head, including a hollow micro-pipe and a stuffing member, the micro-pipe having a diameter-extended portion and a diameter-diminishing portion adapted allowing the incident light to transmit from the diameter-extended portion to the diameter-diminishing portion to emerge from its tip, and the stuffing member being disposed inside of the micro-pipe compared to prior techniques. The optical head of the invention is easier to be made, and it has a better focus for achieving optical exposure of sub-wave length focal spot and deep depth of focus.
National Taiwan University
G B G B Y B G
G01Q B82Y G01Q B82Y Y10T B82Y G03F
additional inventional inventional additional additional inventional inventional
Yu-Hsun Chih-Jen Chun-Yen Te-Hsun Chih-Kung Yuh-Yan
Lee Chien Chen Chen Lee Yu