Abstract: An apparatus is provided for machining workpieces that, when in use, functionally cooperate with each other. The apparatus includes a frame for mounting each of the workpieces, and a machining tool mountable to the frame such that the tool is capable of defined relative movement with respect to the frame. The frame includes one or more adjustable supports for adjusting the position of the workpieces relative to the frame for operative engagement between the tool and the workpieces. The adjustable supports are fixable to maintain the position of one of the workpieces relative to the frame for machining in accordance with the defined relative movement, and the apparatus is adapted to permit the workpiece to be removed and replaced with one of the other workpieces, for machining in accordance with the defined relative movement. A method is also provided.

Abstract: An apparatus is provided for machining workpieces that, when in use, functionally cooperate with each other. The apparatus includes a frame for mounting each of the workpieces, and a machining tool mountable to the frame such that the tool is capable of defined relative movement with respect to the frame. The frame includes one or more adjustable supports for adjusting the position of the workpieces relative to the frame for operative engagement between the tool and the workpieces. The adjustable supports are fixable to maintain the position of one of the workpieces relative to the frame for machining in accordance with the defined relative movement, and the apparatus is adapted to permit the workpiece to be removed and replaced with one of the other workpieces, for machining in accordance with the defined relative movement. A method is also provided.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. In one aspect, the reflector assembly defines a plurality of air slots.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. In one example, the lens includes a curved prismatic surface that can be oriented toward or away from the underlying light source.

Abstract: A replacement light fixture for directing light emitted from a light source toward an area to be illuminated, including a base member upon with the light source is positioned and a reflector assembly detachably secured to a first and second mounting brackets that are mounted to a portion of the preexisting light fixture housing such that a lens portion of the reflector assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens portion

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned, a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies a portion of the light source, and a plurality of end caps secured to a housing of the light fixture and overlying a portion of the light source such that substantially all of the light emitted from the light source passes through the lens assembly and the end caps.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned; a housing defining at least one selectively enclosable ballast enclosure; and a ballast that is positionable in the at least one ballast enclosure.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. The reflector assembly including at least one longitudinally extending hollow that extends inwardly to a central portion between respective first and second hollow edges. Each hollow has a plurality of longitudinally extending male ridges.

Abstract: The present invention is a thermal dissipation system for a ballast of a lighting system. The thermal dissipation system comprises a ballast housing that is adapted for engagement with an elongate support of a common lighting system. The ballast housing comprises a thermally conductive material and is made to substantially house a ballast therein. The ballast housing has a body and thermal transfer surfaces that are shaped to substantially conform to portions of the inner surface of the support. In one aspect, the thermal transfer surfaces of the ballast housing are integral with the body of the housing. In another aspect, the ballast is housed within the body.

Abstract: Systems, methodologies, media, and other embodiments associated with performing a manipulation of a persistent memory using an extensible firmware interface are described. One exemplary method embodiment includes selectively refreshing a persistent memory from an EFI level application and providing to a user level application a signal concerning the persistent memory refreshing.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. In one example, the lens includes a curved prismatic surface that can be oriented toward or away from the underlying light source.

Abstract: A light fixture or troffer for directing light emitted from a light source toward an area to be illuminated, including a reflector assembly within which the light source is positioned and a lens assembly detachably secured to a portion of the reflector assembly such that a lens of the lens assembly overlies the light source and such that substantially all of the light emitted from the light source passes through the lens assembly. In one example, the lens includes a curved prismatic surface that can be oriented toward or away from the underlying light source.