Abstract: A compound having the following formula is disclosed. The compound is useful as an emitter in OLED applications.

Abstract: A compound of Formula I, is provided. In Formula I, one of Z1, Z2, and Z3 is N and the remainder are C; each of L1 and L2 is independently selected from a direct bond and a linking group; at least one of R1, R2, RA, RB, RC, RD, and RE comprises a group R* having a structure selected form the group consisting of Formula II, -Q(R3)(R4)a(R5)b, Formula III, and Formula IV, Each R, R?, R?, R1, R2, R3, R4, R5, RA, RB, RC, RD, RE, RF, RG, and RH is independently hydrogen or a General Substituent, with the proviso that group R* is not adamantyl. Formulations, OLEDs, and consumer products containing the compound are also provided.

Abstract: A solid state laser system having at least one gas injector is disclosed. The gas injector may be configured to so as cause gas flow in a path of the laser beam in order to mitigate distortion of the laser beam due to optical path difference. Each gas injector may be configured so as to cause gas flow proximate at least one optical surface of a solid state gain element of the laser beam system. In this manner gain uniformity may be enhanced so as to facilitate use of the laser system in a variety of military and commercial applications.

Abstract: An embodiment of the laser centering tool is comprised of a plurality of integrally formed, flat, concentric cylinders, wherein the concentric cylinders form an aperture that accepts a means to low power laser beam. The aperture is formed along the centerline of the concentric cylinders. The plurality of integrally formed, flat, concentric cylinders are arranged in increasing diameter wherein the largest diameter cylinder is on one side of the laser centering tool and the cylinder with the smallest diameter is on the other side of the laser centering tool. The embodiment is further comprised of a low power laser beam generating means that is inserted in the centerline aperture. The low power laser beam generating means is a low-power, battery operated laser and is held in place in the aperture through a resistance fit, a threaded connection, or a glued connection.

Abstract: A solid state laser system having at least one gas injector is disclosed. The gas injector may be configured to so as cause gas flow in a path of the laser beam in order to mitigate distortion of the laser beam due to optical path difference. Each gas injector may be configured so as to cause gas flow proximate at least one optical surface of a solid state gain element of the laser beam system. In this manner gain uniformity may be enhanced so as to facilitate use of the laser system in a variety of military and commercial applications.

Abstract: A process and apparatus for simulated color reproduction as applied to dental prosthesis, viz.: crown bridge restoration, including the charting of hue, chroma, value and translucency wherein there is implemented a three part shade guide consisting of forty-two pieces representing respectively opacity, body and enamel laminates, selectively interacted to present chromatic combinations.

Abstract: A mirror arrangement includes a flexible faceplate having a reflective surface and a flexible backing plate which are so mounted on a support that the backing plate is situated behind the faceplate with a gap in between. An array of elongated actuators is arranged on the support rearwardly of and perpendicularly to the backing plate. Each actuator includes an actuating member which is movable in the longitudinal direction of the actuator and exerts a selected force on the backing member at least when the respective actuator is energized. This force is transmitted to the faceplate through respective actuator posts. The gap is sealed with respect to the exterior of the mirror arrangement to form an enclosed cooling chamber.

Abstract: A cooled laser mirror (10) with mirror surface (12), forced-convective cooling heat exchanger (14), and substrate (18), includes a monolithic substrate isolator (50) of porous isotropic material having transpiration flow paths (74) therethrough for providing transpiration cooling of the isolator.

Abstract: A novel cooled mirror for use with high energy lasers includes an optical coating for reflection a laser signal. A heat exchanger having internal passages with flowing coolant is adjacent to the optical coating and removes the heat therefrom. The heat exchanger is affixed to a substrate having supply and return ports for the coolant. The substrate is constructed of porous material so a fraction of the supply coolant bleeds through the substrate to the return coolant. The transpiration flow produces thermal isolation and maximizes the utilization of available coolant heat capacity.

Abstract: A calorimeter for measuring the energy in a particle beam employs a right circular cylinder rotating about its axis through which a coolant passes along an axial pipe through the skin of the cylinder and then out the axial pipe.

Abstract: An apparatus is set forth for the continuous production of highly cooled metal splats. Melted metal is poured onto a spinning atomization disc means whereby liquid metal droplets leave the disc means in a horizontal plane. An annular cooling gas jet flowing normal to the particle plane around the disc deflects the heavier liquid droplets to a conical splat plate which is fixed to rotate with said disc, where the droplets splat and cool, and are ejected by centrifugal force. An annular space is located between said conical splat plate and said rotary atomization means for permitting the gas and other solidified particles to pass downwardly to a shield which directs the particles to a collection area.

Abstract: In apparatus for producing metal powder by rapid solidification of molten metal particles flung into a quenching chamber from a rotating disk through vertical zones of cooling fluid, improved cooling fluid flow, improved operating efficiency and low pressure losses are provided by having the cooling fluid introduced into the quenching chamber via a plurality of cylindrical tubes each having an inlet within a coolant fluid manifold and an outlet opening into the quenching chamber. Each tube including means for creating a cooling fluid vortex flow therein which exits from the tube outlet into the quenching chamber as an expanding cone of swirling fluid. A plurality of these tubes are appropriately located around the rotating disk to create a desired pattern of cooling fluid flow around the disk and through which the molten metal particles will pass as they solidify into the powder.

Abstract: A rotary liquid metal atomizer is positioned to receive a stream of molten metal on the top thereof. The atomizer is formed as a hollow disc means having a concave top surface and mounted for rotation at high RPM's on the top of a hollow drive shaft. A circular coolant baffle is located in the hollow disc means having radial passageways on the top and bottom thereof and connected at the outer periphery for cooling fluid to flow around, and is mounted on the top of an inlet cooling tube located within the drive shaft. Cooling fluid is directed through the inlet cooling tube to the top of the water baffle wherein it flows through a hole in the center thereof and through the passageways between the baffle and the interior of the hollow disc means and down between the inlet cooling tube and drive shaft. A pin fixes the baffle to the disc means. The top of the disc means over the coolant baffle is formed of copper.