Abstract: A luminaire with reflector of negative focal length is disclosed, which comprises a light source and a luminaire screen having a reflector of negative focal length, a side screen and a plate; wherein the reflector of negative focal length is capable of reflecting the upward-incident rays emitting from the light source; and the side screen is capable of reflecting the sideward-incident rays emitting from the light source and the reflected rays of the reflector; and the plate being disposed at the lower portion of the luminaire screen beneath the light source has a plurality of micro-structures arrange thereon and is capable of accepting the rays of the downward incident area along with both the reflected rays of the reflector and the side screen so as to diffuse the same for discharging.

Abstract: An electronic device having a multi-functional pointing device of a track ball in which a connecting part is arranged through which a shaft is connected so that the shaft is connected to the pointing device of track ball. When the shaft moves and pushes, the pointing device of the track ball swings correspondingly . So the track ball provides different operating interfaces so to alleviate the problem that a user needs to have a different pointing device of a track ball with a different control condition.

Abstract: A light guide apparatus for enhancing light source utilization efficiency includes a light guide sheet, a light coupling structure and a light emerging structure. The light coupling structure is arranged on a surface of the light guide sheet and opposite to a light source. The light emerging structure is disposed on a surface of light guide sheet. Lights emitted by the light source enters into the light guide sheet via the light coupling structure and evenly emitted to outer environment via said light emerging structure, thereby enhancing light source utilization efficiency.

Abstract: The present invention is to disclose a SIL near-field flying head flying state control structure in which the SIL is installed in a lens holder that can be biased. The lens holder includes three detection points spaced around the SIL for detecting the distance between each detection point and an optical disk, and a number of single-axis displacement devices for controlling the corresponding lateral side of the lens holder to move axially relative to the optical disk. A server can control the single-axis displacement devices to adjust the posture of the lens holder subject to the distance between each detection point and the optical disk measured, keeping the parallelism between the SIL and the optical disk within a predetermined level.

Abstract: A bra includes two cups and each cup is connected with a side wrap and has a connection portion for connecting a shoulder strap which is connected to the side wrap. Each cup has a protrusion protruding from a top edge thereof so as to cover the nipple of the wearer and at least one concave portion is defined between the protrusion the connection portion. The concave portion eliminates the stress on the top edge of each cup so as to reduce the pressing force to the breast.

Abstract: A light guide apparatus for enhancing light source utilization efficiency includes a light guide sheet, a light coupling structure and a light emerging structure. The light coupling structure is arranged on a surface of the light guide sheet and opposite to a light source. The light emerging structure is disposed on a surface of light guide sheet. Lights emitted by the light source enters into the light guide sheet via the light coupling structure and evenly emitted to outer environment via said light emerging structure, thereby enhancing light source utilization efficiency.

Abstract: A coding method with dynamic positioning is used in a die pick-up process. The steps include picking up one of the dies and examining the dies for classifying the grade of the dies for deposit in their exclusive bin. In the meantime, the method classifies the excusive bin for each grade of die during the process, and continues to perform the die pick-up process until all the dies are picked-up.

Abstract: The present invention is to disclose a SIL near-field flying head flying state control structure in which the SIL is installed in a lens holder that can be biased. The lens holder includes three detection points spaced around the SIL for detecting the distance between each detection point and an optical disk, and a number of single-axis displacement devices for controlling the corresponding lateral side of the lens holder to move axially relative to the optical disk. A server can control the single-axis displacement devices to adjust the posture of the lens holder subject to the distance between each detection point and the optical disk measured, keeping the parallelism between the SIL and the optical disk within a predetermined level.

Abstract: The invention relates to a process of producing polybutylene terephthalate by direct esterification and then melt polycondensation, characterized in that a specific catalyst composition is used, said catalyst composition comprising an organotitanium compound as primary catalyst in an amount of 0.01 to 1.0% by weight of terephthalic acid; and an alkaline metal salt of borate, pyroborate or metaborate as secondary catalyst in an amount of 0.001 to 1.0% by weight of terephthalic acid. By using said catalyt composition, amount of THF by-product generated can be reduced more than 30%, and the reaction rate of esterification can be increased over 20%.(FIG.