Abstract: A display apparatus adapted to be mounted on an audio/video player or the like comprises a housing having a window. A backlight unit having a plate mounted in said housing and made of transparent materials which has a front surface and a back surface, and a plurality of reflecting pieces disposed on the back surface of said plate and being gradually enlarged by distance. A light set has a LED arranged beside the plate of the backlight unit nearby said the reflecting pieces of smaller sizes to emit light to the backlight unit and reflected by the reflecting pieces to the front surface of the plate. A screen is mounted in the housing and disposed in front of the front surface of the backlight unit corresponding in location to the window of the housing, the screen is capable of passing the light reflected by said backlight unit.

Abstract: A display apparatus adapted to be mounted on an audio/video player or the like comprises a housing having a window. A backlight unit having a plate mounted in said housing and made of transparent materials which has a front surface and a back surface, and a plurality of reflecting pieces disposed on the back surface of said plate and being gradually enlarged by distance. A light set has a LED arranged beside the plate of the backlight unit nearby said the reflecting pieces of smaller sizes to emit light to the backlight unit and reflected by the reflecting pieces to the front surface of the plate. A screen is mounted in the housing and disposed in front of the front surface of the backlight unit corresponding in location to the window of the housing, the screen is capable of passing the light reflected by said backlight unit.

Abstract: The uniformity of material removal, as well as contamination due to deposited particulate matter, has been reduced in single wafer sputter-etchers by providing an improved gas baffle. Said gas baffle presents a smooth surface to the incoming sputtering gas so that it disperses uniformly throughout the sputtering chamber, thereby avoiding local fluctuations in pressure which, in turn, can lead to local differences in material removal rate as well as to particulate contamination of the surface that is being etched. The design of the baffle is described along with a method for attaching it to the inside of the sputtering shield.

Abstract: A rainproof and omnidirectional loudspeaker system comprises a base set, a plurality of fitting ring sets, at least one speaker, and an upper cover set. The fitting ring sets are stacked together on the base set. The fitting ring sets have a ring cover, which is provided with a through hole and a ring portion. The two adjoining ring covers are provided with a plurality of partitions disposed therebetween. Two partitions are provided with an empty portion located therebetween. The empty portion is shielded by the ring portion of the ring cover. The speaker is mounted in one of the fitting ring sets. The upper cover set is disposed on the topmost fitting ring set. The sound waves produced by the speaker are radiated into air in all directions via the through holes of the fitting ring sets and the empty portions. The ring covers serve to prevent intrusion of rain or foreign objects.

Abstract: A clip-type microphone comprises a main rod, a first clip set fastened with the main rod, a second clip set fastened with the main rod, an extension rod fastened with one end of the main rod, and a head fastened with one end of the extension rod. The head of the microphone is located in proximity of the mouth of a user of the microphone. The main rod is fastened to the garment of the user of the microphone such that the clip sets hold a specific part of the garment of the microphone user.