Toyoda Gosei Co., Ltd.

Yuji Yonehara

Takeshi Fujiwara

Hiromitsu Takeuchi

Kazumasa Baba

Tadatoshi Kurogi

Masatoshi Shimada

A haptic feedback device includes a dielectric elastomer actuator (DEA) and a driving unit. The DEA includes at least one dielectric layer, electrode layers sandwiching the dielectric layer, and a transmitting layer that forms an outermost layer. The at least one dielectric layer includes an expansion-contraction portion, which expands and contracts when applied with a voltage, and a heat generating portion, which generates heat when applied with a voltage. The haptic feedback device is configured to transmit vibration to a user via the transmitting layer by applying an expansion-contraction voltage between the electrode layers sandwiching the expansion-contraction portion through the driving unit, and transmit heat sensation to the user via the transmitting layer by applying a heat generating voltage between the electrode layers sandwiching the heat generating portion through the driving unit.

Haptic feedback device

A tactile presentation device is provided with: a glove worn on the hand of a user; polymer actuators attached to a base fabric of the glove; a control device which controls the polymer actuators; and an array of haptic stimulators driven by the polymer actuators. The tactile presentation device drives the haptic stimulators using the polymer actuators through the application of a voltage to the polymer actuators by means of the control device, and performs tactile presentation to the skin of the hand of the user by driving the haptic stimulators. The polymer actuators are capable of causing the haptic stimulators to be displaced by at least 100 &#x3bc;m when the frequency of the applied voltage is 1 to 30 Hz and more preferably 1 to 100 Hz.

Tactile presentation device

An optical device includes: an optical element; a housing unit configured to accommodate the optical element; a support part configured to pivotally support the optical element to be tiltable with respect to the housing unit; a piezoelectric element configured to connect the optical element and the housing unit to each other; and an electrode arranged at the piezoelectric element.

Growing community of inventors

Kiyosu, Japan

Yuji Yonehara