Title :
A new image signal transfer method using laser in artificial retina
Author :
Il Yong Yoon ; Seo, Jong-Mo ; Baac, Hyoungwon ; Lee, Byoungho ; Kim, Sung June ; Yu, Hyeoung Gon ; Yu, Young Suk ; Chung, Hum
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea
Abstract :
A new optical link method for the retinal prosthesis is proposed. A laser diode system was chosen to transfer image into the eye and the new optical system was designed and evaluated in silico and ex vivo. The use of laser diode array in artificial retina system makes system simple by deleting signal processing part inside of the eyeball. The designed optical system is enough to focus laser beam on photodiode array in 20 × 20 application on simulation using Code V program, and about 200 μm focusing of laser beam was possible on experiment with porcine eye.
Keywords :
eye; laser applications in medicine; photodiodes; semiconductor lasers; sensory aids; surface emitting lasers; VCSEL array; artificial retina; computer simulation; image signal transfer method; laser beam focusing; laser diode array; neural prosthesis; optical link method; photodiode array; porcine eye; vision prosthesis; Array signal processing; Diode lasers; Laser beams; Optical arrays; Optical design; Optical fiber communication; Optical signal processing; Prosthetics; Retina; Semiconductor laser arrays;
Conference_Titel :
Neural Engineering, 2003. Conference Proceedings. First International IEEE EMBS Conference on
Print_ISBN :
0-7803-7579-3
DOI :
10.1109/CNE.2003.1196794
