Abstract: A lithographic apparatus has an alignment system including a radiation source configured to convert narrow-band radiation into continuous, flat and broad-band radiation. An acoustically tunable narrow pass-band filter filters the broad-band radiation into narrow-band linearly polarized radiation. The narrow-band radiation may be focused on alignment targets of a wafer so as to enable alignment of the wafer. In an embodiment, the filter is configured to modulate an intensity and wavelength of radiation produced by the radiation source and to have multiple simultaneous pass-bands. The radiation source generates radiation that has high spatial coherence and low temporal coherence.

Abstract: A retractable pin injection molding assembly includes a cartridge comprising a mold cavity, a cavity sleeve to accept water and vacuum lines at the back of the mold, an ejector assembly, and a pin connection block with a groove for a locking slide, so that the cartridge may be changed rapidly without disassembling the injection molding assembly. Also provided is a mechanism for continuously adjusting the length of the ejector pins within the mold cavity.

Abstract: The present invention describes an injection molding process for manufacturing golf balls using thermoplastic materials. The injection mold is provided with a heating source and one or more valve gates. The heating source maintains the temperature of the molten thermoplastic material in the conduits through which it is delivered to the mold cavity, and the valve gate shuts off the flow of molten thermoplastic material to the mold cavity. Advantageously, this process reduces or eliminates “trim” or waste material, and thus also minimizes the necessity to recycle thermoplastic material.