Patent application number | Description | Published |
20100177387 | END REFLECTOR FOR A FLAT PANEL LENS - End reflectors, flat panel lens that may utilize the end reflector, and methods are provided. The end reflector for a flat panel lens may include a first grating having a first set of parallel planes. The first set of parallel planes may be of layers of alternating refractive indexes disposed at a first angle with a central plane of the flat panel lens. The end reflector may also include a second grating having a second set of parallel planes. The second set of parallel planes may be of layers of alternating refractive indexes of alternating refractive indexes disposed at a second angle with the central plane. The second angle may be equivalent to the first angle reflected about the central plane. | 07-15-2010 |
20100231498 | IMAGE DISPLAY VIA MULTIPLE LIGHT GUIDE SECTIONS - Various embodiments related to a multi-section light guide and computing devices comprising a plurality of wedge light guides are disclosed. For example, one disclosed embodiment comprises a multi-section light guide having a monolithic wedge-shaped body comprising a plurality of logical light guide sections. Each logical light guides section is configured to direct light via total internal reflection between a first light input/output interface located at a first end of the logical light guide section and a second light input/output interface located at a major face of the logical light guide section. | 09-16-2010 |
20100259488 | AVOIDING OPTICAL EFFECTS OF TOUCH ON LIQUID CRYSTAL DISPLAY - Embodiments are disclosed herein related to the avoidance of undesirable optical effects in a liquid crystal display used with a touch-sensitive display input device. For example, one embodiment provides a user interface comprising a body, a light source disposed within the body, and a liquid crystal display configured to create an image displayable on one or more display surfaces coupled to the body. The user interface device further includes a light delivery system positioned optically between the light source and the liquid crystal display to deliver light produced by the light source to the liquid crystal display. The light delivery system comprises a light exit surface spaced from the liquid crystal display to form a gap positioned between the light exit surface of the light delivery system and the liquid crystal display. | 10-14-2010 |
20100300608 | MAKING AN OPTIC WITH A CLADDING - Embodiments related to making an optic comprising a cladding are disclosed. One example embodiment comprises forming a wedge-shaped light guide having opposing first and second faces and comprising a material having a first refractive index. The embodiment further comprises applying a cladding layer to the first face, and, applying an interface layer to the cladding layer. In this embodiment, the cladding layer has a second refractive index less than the first refractive index, and the interface layer has a third refractive index matched to the first refractive index. | 12-02-2010 |
20100301213 | OPTIC HAVING A DICHROIC REFLECTOR - Various embodiments are disclosed that are related to an optic with a dichroic coating. In one embodiment, sn optic comprises a wedge-shaped light guide having opposing first and second faces and a turning film bonded to the wedge-shaped light guide. The turning film comprises a plurality of facets oblique to the first face of the wedge-shaped light guide and supports a dichroic coating. | 12-02-2010 |
20100302209 | OPTIC HAVING A CLADDING - Various embodiments of wedge-shaped light guide optics are disclosed. One embodiment comprises a wedge-shaped light guide having opposing first and second faces and includes a material having a first refractive index. The first face of the wedge-shaped light guide supports a cladding layer having a second refractive index less than the first refractive index. The optic further comprises a turning film bonded to the cladding layer via an interface layer. The interface layer has a third refractive index matched to the first refractive index. | 12-02-2010 |
20100302344 | ESTABLISHING EYE CONTACT IN VIDEO CONFERENCING - A video-conferencing system includes a display panel configured to form a display image for viewing by a local video conferencer, a camera configured to acquire a facial image of the local video conferencer and having an aperture oriented toward the display panel, and an array of partly reflective facets aligned in parallel against a plane disposed parallel to and forward of the display panel, each facet positioned to transmit a portion of the display image from the display panel through that facet to the local video conferencer, and to reflect a portion of the facial image of the local video conferencer to the aperture. | 12-02-2010 |
20110262092 | OPTIC HAVING A CLADDING - Various embodiments of wedge-shaped light guide optics are disclosed. By forming a gaseous cladding layer between a wedge-shaped light guide and a turning structure, a device may be constructed that is usable to reflect and refract light for displaying an image on a display surface. By using a gas in the cladding layer, the cladding layer may have a refractive index that is lower than respective refractive indexes of each of the wedge-shaped light guide and the turning structure. | 10-27-2011 |
20130027772 | VARIABLE-DEPTH STEREOSCOPIC DISPLAY - This document describes various techniques for implementing a variable-depth stereoscopic display. A first distance at which a viewer is disposed relative to a stereoscopic display is received. Once received, a second distance by which to change a front focal distance of a lens structure of the stereoscopic display is determined based on the first distance. The front focal distance of the lens structure is then caused to change by the second distance effective to display a stereoscopic image at the first distance. | 01-31-2013 |
20130201112 | LOW-LATENCY TOUCH-INPUT DEVICE - This document describes embodiments of a low-latency touch-input device. The low-latency touch-input device receives writing as input to the device and temporarily displays the writing on a physical layer that overlays a touchscreen display of the device. The writing is displayed instantaneously on the physical layer before the touch-input device processes the input. The low-latency touch-input device then processes the input to generate a digital representation of the writing and renders the digital representation of the writing on the touchscreen display to replace the writing displayed on the physical layer. | 08-08-2013 |
20130222353 | PRISM ILLUMINATION-OPTIC - This document describes techniques and apparatuses for implementing a prism illumination-optic for a vision-based interactive-display device. A vision-based interactive-display device includes a display to form images for viewing on a display surface of the device. The device further includes an illumination-optic having an upper face positioned towards the display surface and a lower face positioned towards the display. In accordance with various embodiments, the illumination-optic is configured with prisms on the lower face that reflect light out of the upper face of the illumination-optic to illuminate the display surface. | 08-29-2013 |
20130335387 | OBJECT-DETECTING BACKLIGHT UNIT - This document describes techniques and apparatuses for implementing an object-detecting backlight unit for a display device. An object-detecting backlight unit includes two or more light sources configured to provide light to a display to form an image, and a light sensor configured to receive reflected light when an object is near the display and determine that the reflected light originated from a region of the display. The reflected light is caused by light from the image reflecting off of the object back towards the display. The backlight unit is configured to detect a position of the object based on the region of the display from which the reflected light originated. | 12-19-2013 |
20140376260 | Hybrid Concentrator for a Backlight - This document describes techniques and apparatuses for implementing a hybrid concentrator for a backlight. The backlight includes a light guide and multiple light sources positioned along an input end of the light guide. The backlight further includes multiple hybrid concentrators that each include a lens in a central region of the concentrator and one or more total-internal-reflection (TIR) zones. Each hybrid concentrator is positioned between a corresponding light source and the light guide, and is configured to concentrate light into the light guide. The light guide then projects the concentrated light to illuminate a modulating display panel to form images for viewing. | 12-25-2014 |