BUILT-IN-EYE EYESIGHT STIMULATING APPARATUS

WIPO Patent Application WO/2002/067829

A1

A built-in-eye eyesight stimulating apparatus capable of generating a pulse signal of both electrodes with a simple configuration and having a high sensitivity, small size, and low power consumption. The built-in-eye eyesight stimulating apparatus for artificially generating eyesight or a part of eyesight comprises a photoelectric conversion circuit for converting incident light into an electric signal, a pulse conversion circuit for converting the electric signal output from the photoelectric conversion circuit into an electric pulse signal of frequency in accordance with the signal intensity, a waveform rectifier circuit for converting the pulse signal output from the pulse conversion circuit into a pulse signal of both electrodes, and a power supply circuit for supplying power to the respective circuits, so that a pulse signal of both electrodes is given to a retina portion via electrodes.

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OHTA JUN (JP)
NISHIMURA SHIGERU (JP)
IDEGAMI KOHTARO (JP)
YOSHIDA NORIKATSU (JP)
KAGAWA KEIICHIRO (JP)

PCT/JP2002/001874

September 06, 2002

February 28, 2002

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NIDEK KK (JP)
OHTA JUN (JP)
NISHIMURA SHIGERU (JP)
IDEGAMI KOHTARO (JP)
YOSHIDA NORIKATSU (JP)
KAGAWA KEIICHIRO (JP)

A61F9/007; A61N1/05; A61F9/08; A61N1/36; (IPC1-7): A61F9/00

WO1996039221A1	1996-12-12
WO1999045870A1	1999-09-16
WO1997005922A2	1997-02-20
WO1990000912A1	1990-02-08
WO1994026209A1	1994-11-24

JP2001204757A

2001-07-31

Oguri, Shohei (ARK Mori Building 12-32 Akasaka 1-chome Minato-ku, Tokyo, JP)

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