摘要:
A method of modifying polarity of light is provided. The light propagates through a first transverse plane and has known polarization states in respective cells of the first transverse plane. A first retardation compensator having respective waveplates matching the cells then changes the polarity of the light so that light propagating through a second transverse plane is circularly polarized across the entire second transverse plane. A second retardation compensator includes a plurality of quarter waveplates that change the polarization of the circularly polarized light, so that light passing through a third transverse plane is linearly polarized. The crystal alignment of the quarter waveplates and their shape and configuration are selected so that the direction of the polarization is normal to a radius from a single point.
摘要:
According to one aspect of the invention, a method and apparatus for polarizing electromagnetic radiation is provided. The electromagnetic radiation may be divided into first and second portions, substantially all of the first portion may be linearly polarized in a first direction and substantially all of the second portion may be linearly polarized in a second direction, the first direction being substantially orthogonal to the second direction. The linear polarization of at least one of the first and second portions may be changed such that substantially all of both of the first and second portions are linearly polarized in a third direction. At least one of the first and second portions may be redirected such that substantially all of both the first and second portions are propagating in a fourth direction.
摘要:
According to one aspect of the invention, a method and apparatus for polarizing electromagnetic radiation is provided. The electromagnetic radiation may be divided into first and second portions, substantially all of the first portion may be linearly polarized in a first direction and substantially all of the second portion may be linearly polarized in a second direction, the first direction being substantially orthogonal to the second direction. The linear polarization of at least one of the first and second portions may be changed such that substantially all of both of the first and second portions are linearly polarized in a third direction. At least one of the first and second portions may be redirected such that substantially all of both the first and second portions are propagating in a fourth direction.
摘要:
According to one aspect of the invention, a method and apparatus for polarizing electromagnetic radiation is provided. The electromagnetic radiation may be divided into first and second portions, substantially all of the first portion may be linearly polarized in a first direction and substantially all of the second portion may be linearly polarized in a second direction, the first direction being substantially orthogonal to the second direction. The linear polarization of at least one of the first and second portions may be changed such that substantially all of both of the first and second portions are linearly polarized in a third direction. At least one of the first and second portions may be redirected such that substantially all of both the first and second portions are propagating in a fourth direction.
摘要:
Techniques that may be utilized in reduction of snoop accesses are described. In one embodiment, a method includes receiving a page snoop command that identifies a page address corresponding to a memory access request by an input/output (I/O) device. One or more cache lines that match the page address may be evicted. Furthermore, memory access by a processor core may be monitored to determine whether the processor core memory access is within the page address.
摘要:
Apparatus and systems, as well as methods and articles, may operate to update video display pixels. A video display bus can communicate data to a video display according to specified clock frequencies and a refresh time period. Power conservation can be enhanced by adjusting the specified clock frequencies and/or refresh time period to provide idle time on the video display bus.
摘要:
Systems and methods of power management provide for controlling the idleness of a processor based on an operating system schedule. The idleness of at least one device is synchronized with the idleness of the processor. Idleness synchronization may involve deferring bus transactions, suspending memory refresh, turning off power to clock sources and turning off power to combinatorial logic during an idle window in the OS schedule.
摘要:
A reconfigurable zone plate lens is disclosed. Some embodiments may include a central annular element having a first a first circumference centered about a central axis. Embodiments may also include a plurality of concentric annular elements of increasing circumference centered about the central axis and the central annular element, where each annular element is positioned around an annular element having a smaller circumference. The annular elements of some embodiments may each be adapted to be in either an active or inactive state where the active and inactive annular elements form a plurality of alternating active rings and inactive rings. Each active ring may include one or more annular elements in an active state and each inactive ring may include one or more annular elements in an inactive state. Each annular element may include one or more liquid crystal display (LCD) elements or micromirrors. Other embodiments are disclosed and claimed.
摘要:
For at least one disclosed embodiment, a die may be provided that includes a transmission line (or waveguide) and a signal-generating device to generate a pulse on the transmission line and to receive a pulse from the transmission line. A plurality of transistors may be provided along a length of the transmission line to change an impedance of the transmission line. This may change a speed of the pulse along the transmission line or change an effective length of the transmission line. A control device may also control the plurality of transistors based on a sensed temperature of a thermistor device.
摘要:
A method and system to show information on a display while reducing power consumption of the display includes using a color cylinder to filter light from a light source. The color cylinder is to rotate around the light source to enable different primary color light to be delivered to a display system in a time-domain sequence. Frames are shown on the display in multiple sub-frames. Each sub-frame is associated with a primary color and is shown in synchronization with the same primary color being displayed.