Patent ID: 8059972

Claim:
An optical receiver that receives light beams in multiple wavelength ranges from a light transmitter, the light beams being emitted in different speeds of response by a light emitting diode and a phosphor that is excited by the light emitting diode to emit light and being modulated for data transmission, the optical receiver comprising: multiple filters configured to selectively allow the light beams in the multiple wavelength ranges to pass through; multiple photo-electric converters configured to convert light beams that pass through the respective multiple filters to electric signals; multiple equalizers configured to equalize the respective electric signals after the conversion by the respective multiple photo-electric converters, by emphasizing harmonic components of the respective electric signals according to the speed of response of the respective light beams in wavelength ranges; an adder configured to add the outputs of the multiple equalizers to one added output; and a discriminator configured to perform discrimination processing on the added output by the adder.