Abstract:
A display system includes a display alignment tracker configured to track the position of a first signal and the position of a second signal. The display alignment tracker optically multiplexes a portion of a first signal and of the second signal into a combined optical signal and measures a differential between the first signal and the second signal. A system for rendering optical signals on a head-mounted display, comprising: a first waveguide configured to guide a first signal therethrough; a second waveguide configured to guide a second signal therethrough; an optical multiplexer in optical communication with the first and second waveguides and configured to combine at least a portion of the first signal and of the second signal; and an optical sensor in optical communication with the optical multiplexer and configured to receive a combined optical signal including at least a portion of the first and of the second signal.
Abstract:
A lighting assembly (100) includes a light guide (102) having opposed major surfaces (106, 108), a light input edge extending between the major surfaces (106, 108) and including first and second input regions (110A, HOB), a first light guide region (102A) associated with the first input region (110A) and including first light extracting elements (124), and a second light guide region (102B) associated with the second input region (HOB) and including second light extracting elements (124). A first light source segment (104A) is arranged to input light through the first input region (110A) and into the first light guide region (102A), and a second light source segment (104B) is arranged to input light through the second input region (HOB) and into the second light guide region (102B). The first light source segment (104A) and the second light source segment (104B) are independently controllable to control an illumination state of the solid- state light emitters (104).
Abstract:
A light emitting device (1) comprising at least one first LED (21) adapted for, in operation, emitting light with a first spectral distribution, at least one second LED (22) adapted for, in operation, emitting light with a second spectral distribution, and an optical element (3) comprising a first light input surface (31a), a second light input surface (31b), a light exit surface (32), at least one first through light guiding element (41) extending from the first light input surface towards the light exit surface, and at least one second through light guiding element (42) extending from the second light input surface towards the light exit surface, the at least one first through light guiding element (41) comprising a first end surface (414) at the first light input surface (31a) and a second end surface (415) facing the light exit surface (32), the at least one second through light guiding element (42) comprising a first end surface (424) at the second light input surface (31b) and a second end surface (425) facing the light exit surface (32), the optical element (3) being adapted for receiving the light with the first spectral distribution from the at least one first LED at the first light input surface, receiving the light with the second spectral distribution from the at least one second LED at the second light input surface, redistributing at least a part of the light with the first spectral distribution by guiding it through the at least one first through light guiding element, redistributing at least a part of the light with the second spectral distribution by guiding it through the at least one second through light guiding element, mixing the redistributed light to obtain mixed light with a third spectral distribution, and coupling the mixed light with the third spectral distribution out of the light exit surface.
Abstract:
A photobioreactor system and a process for its use is illustrated, whereby water and nutrients from multiple sources are balanced (mixed using aeration) to the specific requirements of the particular photosynthetic organism strain used, sterilized, further mixed to balance the system and seeded with the photosynthetic microorganism, e.g. microalgae (dilution of a concentrated stock or added to an existing algal biomass). In accordance with such an embodiment, the algal biomass is then grown for a most efficient number of hours in a totally controlled environment where temperature (using aeration, an internal coil cooling system, or a combination thereof), pH (via CO 2 delivery) and light delivery (using internal lighting directly inside the algal biomass) are optimized to the algal strain grown.
Abstract:
Described herein is a glass article, for example a light guide plate, for illuminating a display panel, and in particular a light guide plate comprising a glass substrate formed by a plurality of individual segments, the plurality of glass segments arranged edge-to-edge in a two dimensional array and laminated between at least two polymer films. A display device incorporating the glass article is also described.
Abstract:
A light guide assembly includes light guide segments, each including opposed major surfaces and a light input edge extending in the thickness direction therebetween. One of the light guide segments includes a first side edge surface including one or more side edge surface sections, at least a portion thereof oriented non-parallel to the thickness direction. Another of the light guide segments includes a second side edge surface complimentary to the first side edge surface. The one of the light guide segments is arranged adjacent the another of the light guide segments and abuts the complimentary second side edge surface, the one of the light guide segments variably positionable relative to the another of the light guide segments about an axis parallel to the length direction. A lighting assembly includes the light guide assembly and a housing assembly having housing segments, each associated with one of the respective light guide segments.
Abstract:
Techniques are provided for a high dynamic range panel that includes an array of light sources (202,203) illuminating a corresponding array of light guides (204, 206). A light source (202) of the array illuminates a first light guide (204). The light source directly underlies, such as in a cavity (208), a second light guide (206) that is adjacent to the first light guide. The light source (202) does not extend below a bottom side (214) of either the first light guide or the second light guide to reduce thickness of the panel. The light source (202) and the first light guide (204) can be integrated as a tile assembly. Alternatively, the light source (202) and the second light guide (206) can be an integrated tile assembly. In a specific embodiment, the light source emits a blue or ultraviolet light, which is converted by quantum dots to a different color.