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Apparatus with variable surface relief for conveying tactile or visual information has wax-filled cavities and heating elements under deformable membrane
Apparatus with variable surface relief for conveying tactile or visual information has wax-filled cavities and heating elements under deformable membrane
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机译:用于传递触觉或视觉信息的表面浮雕可变的设备在可变形膜下具有蜡填充的空腔和加热元件
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摘要
The apparatus (10) consists of a series of sealed cavities (24) filled with a substance such as wax which varies in volume once a given temperature threshold has been passed. It has a deformable membrane (38) between the cavities and an outer surface (10a), and each cavity contains an electric heating element (26) to vary the volume of the enclosed substance. A variant of the design uses spring-loaded pistons instead of the deformable membrane to give a variation in the surface relief.
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