Abstract: A scanning display system includes two detectors for rangefinding. Round trip times-of-flight are measured for reflections of laser pulses received at the detectors. A proportional correction factor is determined based at least in part on the geometry of the scanning display system. The proportional correction factor is applied to the measured times-of-flight to create estimates of more accurate times-of-flight.

Abstract: Briefly, in accordance with one or more embodiments, an information handling system comprises a scanning system to scan one or more component wavelength beams into a combined multi-component beam in a first field of view, and a redirecting system to redirect one or more of the component wavelength beams into a second field of view. A first subset of the one or more component wavelength beams is projected in the first field of view and a second subset of the one or more component wavelength beams is projected in the second field of view. The first subset may project a visible image in the first field of view, and user is capable of providing an input to control the information handling system via interaction with the second subset in the second field of view.

Abstract: A scanning display system includes two detectors for rangefinding. Round trip times-of-flight are measured for reflections of laser pulses received at the detectors. A proportional correction factor is determined based at least in part on the geometry of the scanning display system. The proportional correction factor is applied to the measured times-of-flight to create estimates of more accurate times-of-flight.

Abstract: Briefly, in accordance with one or more embodiments, an information handling system comprises a scanning system to scan one or more component wavelength beams into a combined multi-component beam in a first field of view, and a redirecting system to redirect one or more of the component wavelength beams into a second field of view. A first subset of the one or more component wavelength beams is projected in the first field of view and a second subset of the one or more component wavelength beams is projected in the second field of view. The first subset may project a visible image in the first field of view, and user is capable of providing an input to control the information handling system via interaction with the second subset in the second field of view.

Abstract: In one aspect, a device comprises a means for generating an aerostatic force exclusive of a buoyancy force acting on the device, wherein the aerostatic force acting on the device is a significant portion of a total force acting on the device due to the aerostatic force exclusive of a buoyancy force, a reaction force, and a buoyancy force. In another aspect, a device includes a cavity with a first internal pressure of a first fluid, and a plurality of conduits extending from the cavity to an environment outside of the device with a second pressure different from the first pressure, wherein fluid flows through the plurality of conduits, and an aerostatic force exclusive of a buoyancy force acting on the device is greater than a reaction force acting on the device due to the fluid flow or is a substantial portion of the total force acting on the device.

Abstract: An imaging system (100) includes a housing (101). A control circuit (224) disposed within the housing (101). A projector (102) is disposed within the housing (101) and is operable with the control circuit (224). The projector (102) is configured to create images (104) with an image cone (106). A gesture recognition device (103) is disposed within the housing (101) and is operable with the control circuit (224). The gesture recognition device (103) is configured to detect gestures (107) in a gesture recognition cone (108). The projector (102) and the gesture recognition device (103) can be arranged within the housing (101) such that the image cone (106) and the gesture recognition cone (108) exit the housing (101) without overlap.

Abstract: An apparatus determines a cursor position in an illumination field of a projector. An obstruction is detected in the illumination field. The cursor position is determined as the point on the obstruction furthest from where the obstruction crosses a border of the illumination field. A distance to the point on the obstruction is determined and compared to a distance to a point not on the obstruction. Gestures are recognized as a function of movement of the obstruction and the determined distances.

Abstract: An imaging system (100) includes a housing (101). A control circuit (224) disposed within the housing (101). A projector (102) is disposed within the housing (101) and is operable with the control circuit (224). The projector (102) is configured to create images (104) with an image cone (106). A gesture recognition device (103) is disposed within the housing (101) and is operable with the control circuit (224). The gesture recognition device (103) is configured to detect gestures (107) in a gesture recognition cone (108). The projector (102) and the gesture recognition device (103) can be arranged within the housing (101) such that the image cone (106) and the gesture recognition cone (108) exit the housing (101) without overlap.

Abstract: A projection apparatus memorizes settings as a function of location, orientation, elevation, or any combination. The projection apparatus recalls the settings when the location, orientation, elevation, or combination of the projection apparatus matches memorized values. Memorized settings may include projector settings, image source settings, audio output settings, audio source settings, and the like.

Abstract: An apparatus determines a cursor position in an illumination field of a projector. An obstruction is detected in the illumination field. The cursor position is determined as the point on the obstruction furthest from where the obstruction crosses a border of the illumination field. A distance to the point on the obstruction is determined and compared to a distance to a point not on the obstruction. Gestures are recognized as a function of movement of the obstruction and the determined distances.

Abstract: A display (200) includes a slanted fringe volume hologram (206) or other optical element that steers light that passes into and out of the display (200) so as to provide angular separation between unmodulated scattered light and modulated reflected light. As a result of the angular separation the effective contrast of the display (200) is improved. By placing the slanted fringe volume hologram (206) below a front polarizer of the display a further reduction in the amount of unmodulated scatter light is achieved. The slanted fringe volume hologram is preferably a hologram of a diffusive object (328), and consequently exhibits a degree of light diffusion that results in a viewing zone of an appreciable angular extent.

Abstract: A display (200) includes a slanted fringe volume hologram (206) or other optical element that steers light that passes into and out of the display (200) so as to provide angular separation between unmodulated scattered light and modulated reflected light. As a result of the angular separation the effective contrast of the display (200) is improved. By placing the slanted fringe volume hologram (206) below a front polarizer of the display a further reduction in the amount of unmodulated scatter light is achieved. The slanted fringe volume hologram is preferably a hologram of a diffusive object (328), and consequently exhibits a degree of light diffusion that results in a viewing zone of an appreciable angular extent.

Abstract: A ridged reflector (10) for use in an optical display (12) comprises a polymeric layer (70) having a ridged surface (32) and an opposite surface (34) opposite the ridged surface (32). The ridged surface (32) includes a series of ridges (36). Each of said ridges (36) has a first face (42) and a second face (44) intersecting the first face (42). The first face (42) is oriented at a first angle (56) relative to a plane parallel to the opposite surface (34). A reflective metallic layer (68) overlies at least the first faces (42) of the polymeric layer (70). The first angle (56) is adapted to reflect and biasedly focus light obliquely intercepting the first face (56) into a radiation pattern about a normal axis (38) extending orthogonally from the opposite surface (34). The first face (42) may be curved to tailor a shape of the radiation pattern.

Abstract: A ridged reflector (10) permits operation of an optical display device (12) in ambient light, which may be supplemented by artificial back-lighting. The ridged reflector (10) for use in an optical display (12) includes a transparent polymeric layer (70) having a ridged surface (32). The ridged surface (32) includes a series of ridges (36). Each of the ridges (36) has a first face (42) and a second face (44) preferably intersecting the first face (42). A reflective layer (68) overlies the first face (42) of each of the ridges (36). The second face 44 (44) is generally light-transmissive and substantially free of a reflective layer (68). The ridged surface (32) has an opposite surface (34) opposite the ridged surface (32). The second face (44) of each of said ridges (36) allows optical communication with the opposite surface (34) for optional back-lighting of the optical display device.

Abstract: The display device includes an optical cell having a cell front with at least one cell region being capable of an optically transmissive mode and an optically nontransmissive mode with reference to the cell front. The optical cell contains an optically active material responsive to an applied electrical field such that optical properties of the material are controllably changeable. A reflector may be optically coupled to the cell. A prismatic film including a prismatic surface is optically coupled to the optical cell. The prismatic surface preferably comprises a series of prisms. The prisms have first faces and second faces intersecting the first faces. The first faces are oriented to refract light obliquely intercepting the first faces and the second faces are oriented to minimize refractive, reflective, and optical interactions of the light with the second faces.