Touch sensing for curved displays
First Claim
Patent Images
1. A display apparatus, comprising:
- a diffuse spherical display that defines an interior region of the display apparatus, the diffuse spherical display having an interior surface, an exterior surface, and an aperture;
a ring-like configuration of light emitters positioned around the aperture in the interior region of the display apparatus, the light emitters configured to emit infrared light through the interior region towards the interior surface of the diffuse spherical display, the infrared light passes through the interior surface and then passes through the exterior surface of the diffuse curved display;
a wide-angle lens that is positioned inside the aperture and flush with the ring-like configuration of light emitters;
a wavelength filter that is optically coupled to the wide-angle lens, wherein infrared light received by way of the wide-angle lens passes through the wavelength filter;
an infrared camera that is optically coupled to the wavelength filter and the wide-angle lens, the infrared camera is configured to receive infrared light that passes through the wavelength filter; and
a projector that is optically coupled to the wavelength filter, wherein the wavelength filter reflects visible light emitted from the projector through the wide-angle lens such that the visible light is displayed on the exterior surface of the diffuse spherical display, an optical path of the infrared light received by the wavelength filter and an optical path of the visible light reflected by the wavelength filter are in alignment.
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Abstract
Described herein is an apparatus that includes a curved display surface that has an interior and an exterior. The curved display surface is configured to display images thereon. The apparatus also includes an emitter that emits light through the interior of the curved display surface. A detector component analyzes light reflected from the curved display surface to detect a position on the curved display surface where a first member is in physical contact with the exterior of the curved display surface.
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Citations
20 Claims
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1. A display apparatus, comprising:
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a diffuse spherical display that defines an interior region of the display apparatus, the diffuse spherical display having an interior surface, an exterior surface, and an aperture; a ring-like configuration of light emitters positioned around the aperture in the interior region of the display apparatus, the light emitters configured to emit infrared light through the interior region towards the interior surface of the diffuse spherical display, the infrared light passes through the interior surface and then passes through the exterior surface of the diffuse curved display; a wide-angle lens that is positioned inside the aperture and flush with the ring-like configuration of light emitters; a wavelength filter that is optically coupled to the wide-angle lens, wherein infrared light received by way of the wide-angle lens passes through the wavelength filter; an infrared camera that is optically coupled to the wavelength filter and the wide-angle lens, the infrared camera is configured to receive infrared light that passes through the wavelength filter; and a projector that is optically coupled to the wavelength filter, wherein the wavelength filter reflects visible light emitted from the projector through the wide-angle lens such that the visible light is displayed on the exterior surface of the diffuse spherical display, an optical path of the infrared light received by the wavelength filter and an optical path of the visible light reflected by the wavelength filter are in alignment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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emitting light through an interior region of a display apparatus towards an interior surface of a diffuse spherical display, the diffuse spherical display is configured to display images on an exterior surface thereof, and the act of emitting comprises; using a ring-like configuration of light emitters positioned in the interior region of the display apparatus and around an aperture of the spherical display, emitting infrared light through the interior region and towards the interior surface of the diffuse spherical display, the infrared light emitted by the emitters passes through the interior surface of the diffuse spherical display and further through the exterior surface of the diffuse curved display; and using a projector, a wavelength filter, and a wide-angle lens that is positioned inside the aperture and flush with the ring-like configuration of light emitters, emitting visible light through the aperture, through the interior region, and towards the interior surface to project images on the exterior surface of the diffuse curved display, wherein the visible light emitted by the projector is reflected off of the wavelength filter and through the wide-angle lens; and using an infrared camera, capturing an image of the interior surface of the diffuse curved display, wherein infrared light captured by the infrared camera passes through the wavelength filter and the wide-angle lens, and further wherein an optical path of the infrared light received by the wavelength filter and an optical path of the visible light reflected off of the wavelength filter are in alignment. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A display apparatus, comprising:
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a spherical display that includes an aperture, the spherical display includes an interior surface and an exterior surface and is diffuse in nature, the interior surface defining a hollow central region of the spherical display; a ring-like configuration of light-emitting diodes that is positioned around the aperture, the light-emitting diodes are configured to emit infrared light through the hollow central region and through the interior surface and then through the exterior surface of the spherical display; a wide-angle lens that is positioned inside the aperture and flush with the ring-like configuration of light-emitting diodes; a wavelength filter that is optically coupled to the wide-angle lens, infrared light received by way of the wide-angle lens passes through the wavelength filter; an infrared camera that is optically coupled to the wavelength filter and the wide-angle lens, the infrared camera is configured to receive infrared light that passes through the wavelength filter; and a projector that is optically coupled to the wavelength filter, the wavelength filter reflects visible light emitted from the projector through the wide-angle lens such that the visible light is displayed on the exterior surface of the spherical display, an optical axis of infrared light received by the wavelength filter is aligned with an optical axis of visible light reflected by the wavelength filter. - View Dependent Claims (19, 20)
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Specification