Apparatus for generating vibrotactile sensation
AssigneeElectronics and Telecommunications Research Institute
InventorInwook Hwang
Life of this patent
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Abstract
Provided is an apparatus for generating a vibrotactile sensation. The apparatus for generating a vibrotactile sensation includes a light source generating light, a vibration layer generating a vibration by receiving the light, a vibration detection unit disposed adjacent to the vibration layer to detect a vibration signal of the vibration layer, and a control unit connected to the vibration detection unit to determine the vibration of the vibration layer by using the vibration signal. Here, the vibration layer includes a thermo-elastic layer that has a first thermal expansion coefficient and a photo-thermal conversion layer that is disposed on the thermo-elastic layer and has a second thermal expansion coefficient less than the first thermal expansion coefficient.
Claims11
An apparatus for generating a vibrotactile sensation, comprising:
- a light source configured to generate light;
- a vibration layer receiving the light to generate a vibration;
- a vibration detector disposed adjacent to the vibration layer to obtain a vibration signal of the vibration layer;
- and
- a controller connected to the vibration detector to determine the vibration of the vibration layer by using the vibration signal,
- wherein the vibration layer comprises:
- a thermo-elastic layer that has a first thermal expansion coefficient;
- and
- a photo-thermal conversion layer that is disposed on the thermo-elastic layer and has a second thermal expansion coefficient less than the first thermal expansion coefficient.
Dependencies are inferred from the claim text.