Abstract: A fan includes a frame, a stator, a rotor and a magnetic member. The frame comprises a base. The stator is connected to the frame. The rotor has a shaft. The magnetic member, corresponding to the shaft, is disposed on the base to attract the shaft. The magnetic member and the shaft are spaced apart with the base disposed therebetween. The magnetic member may be disposed outside or inside the frame or on the stator.

Abstract: A composite heat dissipating apparatus includes a heat pipe and at least two heat sinks. The heat sinks are connected to each other. A space for accommodating the heat pipe therein is formed at a connection between the heat sinks. Each of the heat sinks is integrally formed as a single piece.

Abstract: A multi-tube fluorescent discharge lamp, which is constructed of multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The Invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the Invention therefore has higher luminous flux.

Abstract: A fan housing for surrounding the rotor of a fan. The fan housing has a first frame and a second frame. The first frame includes at least one extending part with a first engaging member. The second frame includes a guide slot and a second engaging member corresponding to the first engaging member to enable the first and second frames to be detachably assembled together.

Abstract: An impeller is applied to a centrifugal fan and includes fan blades and a hub. Each fan blade includes a first portion and a second portion. The first portion is located relatively close to the hub and the first portion is coupled to the second portion. The first portion has a windward side and a leeward side, and the windward side is parallel to the leeward side. The second portion is located relatively far away from the hub. The second portion has a windward side and a leeward side, and the windward side and the leeward side are two curved surfaces with different specific curvatures.

Abstract: A method of manufacturing a multi-tube fluorescent discharge lamp which construct multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the invention therefore has higher luminous flux.

Abstract: A fan. The fan comprises a frame, a stator, a rotor and a magnetic member. The stator is connected to the frame. The rotor has a shaft. The magnetic member, attracting the shaft, is disposed corresponding to the shaft without making contact therewith. The magnetic member may be disposed outside or inside the frame or on the stator.

Abstract: An impeller is applied to a centrifugal fan and includes fan blades and a hub. Each fan blade includes a first portion and a second portion. The first portion is located relatively close to the hub and the first portion is coupled to the second portion. The first portion has a windward side and a leeward side, and the windward side is parallel to the leeward side. The second portion is located relatively far away from the hub. The second portion has a windward side and a leeward side, and the windward side and the leeward side are two curved surfaces with different specific curvatures.

Abstract: The present invention relates to a comparator of image. In a preferred aspect, the comparator of the invention includes an electronic image display, which shows a picture image for reference, a splitter mirror with a mirror forming an optical path, and making comparison between reference image and image of pattern selected, both images are projected to the same optical plan on the optical path, through overlapping process to achieve precise comparison.

Abstract: An optical seal comparator which uses the optic path formed by combination of splitter mirror with mirror, and other optic accessories, making comparison between pattern of compared seal and that of standard one by projection on the same optic plan, then through the overlapping process to achieve precise comparison. In order to speed up the process, the unit uses alternating electronic signals to control brightness of the two patterns, making display one after the other to pinpoint the inconsistent part from the overlap by showing flickered image.

Abstract: A multi-tube fluorescent discharge lamp, which is constructed of multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The Invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the Invention therefore has higher luminous flux.

Abstract: The Invention is an apparatus of eyedropper aiming which facilitates the user to adjust the position and angle of the eyedropper to drop the eye lotion accurately into the eye. A ray of light is projected and passes the eye lotion to the drop on the beak of the dropper. The light focuses on the drop and then is projected onto the user's eye. The user can easily see the light spot and adjust the position as well as the angle of the apparatus to have a clear round light spot will be imaged on the user's retina so that the user can drop the eye lotion accurately into the eye.

Abstract: A method of manufacturing a multi-tube fluorescent discharge lamp which construct multiple glass tubes of different caliber in coaxial structure, the both sides of the inner most tube are connected to a cathode respectively, by isolating, perforating and blocking the discharge path, forming a successive discharge path, and coating phosphor on surface of the discharge tubes. The Invention can then have more fluorescent area than a conventional fluorescent lamp of the similar size and higher lumen as well as power transfer factor. Compared with the power consumption of a conventional fluorescent discharge lamp, the Invention therefore has higher luminous flux.