Ricoh Company, Ltd.

Oclaro Japan, Inc.

Yuki Abe

Ryo Saito

Suguru Sangu

Toshiki Yamanaka

Shigeru Tokita

A displacement measurement device includes: an irradiation unit that irradiates a measurement object with coherent light; a luminance-change coordinate point detection unit that detects a luminance-change coordinate point where a luminance change has occurred, based on light reflected from the measurement object, and outputs data related to the luminance-change coordinate point; and circuitry that calculates an amount of displacement of the measurement object, based on the data related to the luminance-change coordinate point, by performing computations of a first numerical sequence and a second numerical sequence. The first numerical sequence includes a set of first elements each representing a location of the luminance-change coordinate point extracted from the data. The second numerical-sequence includes a set of second elements each representing a location of the luminance-change coordinate point extracted from the data.

Displacement measurement device, non-contact input apparatus, and biological micromotion measurement apparatus

The invention provides a dust cap which allows for performing operation test of an optical transceiver without removing the dust cap from the optical transceiver. The dust capcomprises: a connectorhaving an opening on a distal end of the connector, which is pressed into a transmission adapter of the optical transceiver; a connectorhaving an opening on a distal end of the connector, which is pressed into a reception adapter of the optical transceiveradjacent to the transmission adapter; a support memberconnected with proximal ends of the connectorsand configured to support the connectors; and an optical transmission pathconfigured to pass through the connector, the support member, and the connectorin that order and to transmit light from the opening of the connectorto the opening of the connector

Growing community of inventors

Kanagawa, Japan

Yuki Abe