TOUCH SENSITIVE DEVICE USING OPTICAL GRATINGS
First Claim
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1. A touch sensitive device, comprising:
- a deformable material embedded with optical gratings;
a light source to send light into the deformable material to reflect off of, or transmit through, one or more of the optical gratings;
a processing unit to determine if a touch has occurred on the deformable material based on the reflection of the light off of the one or more of the optical gratings or based on the transmission of light through the one or more of the optical gratings.
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Abstract
A touch sensitive device includes a deformable material embedded with optical gratings and a light source to send light into the deformable material to reflect off of, or transmit through, one or more of the optical gratings. The touch sensitive device further includes a processing unit to determine if a touch has occurred on the deformable material based on the reflection of the light off of the one or more of the optical gratings or based on the transmission of light through the one or more of the optical gratings.
51 Citations
24 Claims
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1. A touch sensitive device, comprising:
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a deformable material embedded with optical gratings; a light source to send light into the deformable material to reflect off of, or transmit through, one or more of the optical gratings; a processing unit to determine if a touch has occurred on the deformable material based on the reflection of the light off of the one or more of the optical gratings or based on the transmission of light through the one or more of the optical gratings. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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detecting light reflected from, or transmitted through, an optical grating disposed within a deformable material associated with a touch panel; and determining whether a touch has occurred to the touch panel to deform the deformable material based on the detected light reflected from, or transmitted through, the optical grating. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A method, comprising:
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detecting light reflected from, or transmitted through, one or more of a plurality of optical gratings disposed within a deformable material; and detecting a position of a touch on the deformable material based on the detected light reflected from, or transmitted through, the one or more of the plurality of optical gratings. - View Dependent Claims (21, 22, 23, 24)
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Specification