Abstract:
In embodiments, a pen digitizer includes a light source that generates light. The pen digitizer also includes light guides, such as fiber optics, configured coaxial within the pen digitizer to transfer the light from the light source and focus the light around an imaging tip of the pen digitizer. A photo array optically-images reflected light from encoded bits in an encoded micro pattern, and a lens focuses the reflected light onto the photo array.
Abstract:
In accordance with an embodiment of the present invention, an image capture device comprises a first scanning module operable to scan a first side of an object and a second scanning module operable to scan a second side of the object, the first and second scanning modules translatable along their respective displacement paths.
Abstract:
A user input device for use with a computing device is provided. The user input device may include a housing with a bottom portion including a substrate that includes a transparent portion. The user input device may further include an optical tracking engine mounted in the housing proximate the substrate and being configured to transmit and/or detect light for tracking movement of the user input device through the transparent portion of the substrate.
Abstract:
A light guide includes at least two channels from which light is shined on a target area. The multiple channels disperse light across the target area more uniformly and with fewer dead or bright spots. The channels may be integral to one another, and may be molded. The light guide may further include an integral holder for supporting and aligning a LED light source to shine upon an entrance surface of the light guide. The entrance surface may also be formed as a collection lens. The channels may also be configured to direct light onto a target area at different angles. One or more of the channel faces from which light emanates may also be non-planar.
Abstract:
An optical system for forming an image of at least a portion of an illuminated area on an object may comprise a lens positioned a spaced distance from the illuminated area on the object and an aperture stop positioned so that it is substantially co-planar with the image side focal plane of the lens. An occluding element is positioned between the lens and the illuminated area on the object so that the occluding element blocks a predetermined amount of light from a brightly illuminated region in the illuminated area but does not substantially block light from a less brightly illuminated region in the illuminated area.
Abstract:
A position sensing device has a substrate, a first portion, a second portion, a two-dimensional photosensor array, a light path and a lens. The first portion is attached to the substrate and the second portion is movably mounted to the first portion along a first axis. The two-dimensional photosensor array is attached to the second portion. The light path extends between a plane and the two-dimensional photosensor array. The lens is positioned in the light path.
Abstract:
A computer accessory according to one embodiment of the present invention may comprise a housing and an icon pointing system mounted within the housing. The icon pointing system generates icon pointing data during selected times in order to control a position of an icon associated with a host computer system connected to the computer accessory. An imaging system mounted within the housing produces image data during selected times, the image data being representative of an image of a selected object. A data transmission system operatively associated with the icon pointing system and the imaging system transmits the icon pointing data and the image data to the host computer.
Abstract:
A position sensing device having a single photosensing element is disclosed herein. The position sensing device determines the location of an object to which the position sensing device is attached relative to a surface. The position sensing device has a plurality of light paths that direct light from different area portions of the surface to the single photosensing element. Each area portion of the surface is associated with a light source wherein each light source may be activated individually. A processor illuminates these area portions individually. As the area portions are illuminated, the photosensing element creates image data representative of the image of the area portion being illuminated. The processor analyzes the image data and identifies distinct features in the area portions. As the object is moved relative to the surface, the locations of these distinct features relative to the photosensing element move. By measuring this movement, the processor is able to determine the velocity, direction of movement, and position of the object relative to the surface.
Abstract:
A position sensing device is disclosed wherein the positioning sensing device may determine the velocity and position of an object relative to a surface as the object is moved relative to the surface. The positioning sensing device may comprise two depth measurement devices that are mounted to the object on an axis that is substantially parallel to the direction of movement between object and the surface. The depth measurement devices are spaced a predetermined distance from each other. The depth measurement devices measure the contours of the surface as the object is moved relative to the surface and may output data representative of the surface contour to a processor. Accordingly, the processor receives two data signals that are out of phase wherein the phase shift is proportional to the relative velocity between the object and the surface. The processor may then perform an analysis on the data signals to determine the velocity of the object relative to the surface. Likewise, the processor may also determine the displacement of the object relative to the surface during a time interval.
Abstract:
An illumination system for illuminating a scan region on an object may comprise a hollow reflector having an interior reflective surface, an entrance aperture, and an exit aperture. A light source is positioned adjacent the entrance aperture of the hollow reflector so that some of the light rays produced by the light source pass through the entrance aperture and are reflected by the interior reflective surface of the hollow reflector before passing through the exit aperture.