TOUCH SYSTEM USING OPTICAL COMPONENTS TO IMAGE MULTIPLE FIELDS OF VIEW ON AN IMAGE SENSOR
First Claim
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1. A touch system, comprising:
- a touch sensing plane; and
a camera assembly positioned proximate the touch sensing plane, the camera assembly comprising;
an image sensor; and
at least one virtual camera comprising at least two fields of view associated with the touch sensing plane, the at least one virtual camera comprising optical components configured to direct light that is proximate the touch sensing plane along at least one light path, the optical components configured to direct and focus the light onto different areas of the image sensor.
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Abstract
A touch system includes a touch sensing plane and a camera assembly that is positioned proximate the touch sensing plane. The camera assembly includes an image sensor and at least one virtual camera that has at least two fields of view associated with the touch sensing plane. The at least one virtual camera includes optical components that direct light that is proximate the touch sensing plane along at least one light path. The optical components direct and focus the light onto different areas of the image sensor.
68 Citations
20 Claims
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1. A touch system, comprising:
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a touch sensing plane; and a camera assembly positioned proximate the touch sensing plane, the camera assembly comprising; an image sensor; and at least one virtual camera comprising at least two fields of view associated with the touch sensing plane, the at least one virtual camera comprising optical components configured to direct light that is proximate the touch sensing plane along at least one light path, the optical components configured to direct and focus the light onto different areas of the image sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A touch system, comprising:
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a touch sensing plane; and a camera assembly positioned proximate the touch sensing plane, the camera assembly comprising an image sensor configured to detect light levels associated with light within the touch sensing plane, the light levels being configured to be used in determining coordinate locations in at least two dimensions of one touch or simultaneous touches within the touch sensing plane. - View Dependent Claims (16, 17, 18, 19)
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20. A camera assembly for detecting one touch or simultaneous touches, comprising:
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an image sensor; and optical components configured to direct light associated with at least two fields of view along at least one light path, the optical components configured to direct and focus the light that is associated with one of the fields of view onto one area of the image sensor and to direct and focus the light that is associated with another one of the fields of view onto a different area of the image sensor, light levels associated with the light are configured to be used in determining coordinate locations of one touch or simultaneous touches within at least one of the at least two fields of view.
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Specification