Abstract: A concentration photovoltaic cell system with light guide includes a concentrator for focusing sunlight; a light guide located at where the sunlight is focused by the concentrator, so that the focused light is fully coupled to an input end of the light guide and propagates to an output end of the light guide; and a solar energy converter arranged at the output end of the light guide for receiving and converting the light projected from the light guide into electric energy. With the above arrangements, the solar converter may be located at a place not exposed to sunlight to avoid lowered energy conversion efficiency caused by temperature rising at photovoltaic cell chips thereof, and the use of the light guide enables increased GCR and light concentrating efficiency to enable reduced number of expensive photovoltaic cells.

Abstract: A headset includes two sound output units and a connector connecting the two sound output units. Each of the two sound output units includes a limiting part arranged thereon. The connector is made of an elastic material and capable of being flexibly mounted to each of the limiting parts so as to improve the convenience of using the headset by making it easy to wear, adjust and collect.

Abstract: A cable of easy collection includes multiple hardened sections and multiple soft sections. Each of the soft sections is disposed between each two hardened sections so that the hardened sections can overlap with each other.

Abstract: The invention relates to a computer system capable of automatically duplicating data into discs with automatically blank-disc-supplying. The invention can be implemented by software, hardware, or any of the combinations. Since the invention does not utilize a mechanical arm to move the discs, the structure of the invention saves space compared with a traditional disc duplicating machine; moreover, the cost is less than that of the prior art.

Abstract: A storage container having a cover and a disc base is disclosed. The storage container is used for storing information storage media. The cover of the storage container has a locking element used to wrappedly engage a locking mechanism positioned on the disc base. When the locking mechanism is engaged in the locking element, the storage container is securely locked. In order to separate the cover and the disc base, the connecting part has to be broken. Accordingly, the storage container is lockable and prevents the information storage media disposed therein from being stolen.

Abstract: A freeze safe valve includes a housing coupled between an upstream tube and a downstream tube of a water flowing or supplying line for shutting off the water flowing or supplying line and for opening a drain port in response to the formation of ice on the downstream side of water flowing or supplying line, and thus for alleviating the pressure on the downstream side and for precluding or eliminating water damage from frozen, broken pipes, etc. A flexible valve member is disposed in the housing for selectively blocking the drain port of the housing by the fluid flowing into the housing and for selectively blocking the an orifice of a plate by a spring member.

Abstract: A remote vehicle diagnosis system comprises an electronic control unit, a signal transmitter, a first network communicator, a second network communicator, a signal reproducer/learner and a diagnosis instrument. The electronic control unit, the signal transmitter and the first network communicator are connected to each other by line. The first network communicator and the second network communicator are connected to each other via signals. The second network communicator, the signal reproducer/learner and the diagnosis instrument are connected to each other by line. By such arrangements, the diagnosis instrument can directly and remotely control the signal parameter adjustment of the electronic control unit, thus improving the working efficiency of the electronic control unit.

Abstract: A sub-wavelength grating structure that has a very broad reflection spectrum and very high reflectivity comprising segments made of high refractive index material disposed on a layer of low refractive index material and a low refractive index material disposed above and between the segments. The index differential between the high and low index materials determines the bandwidth and modulation depth. The larger difference in refractive indices gives rise to wider reflection bands. The reflection is sensitive to parameters such as the grating period, the grating thickness, the duty cycle of the grating, the refractive index and the thickness of the low index layer underneath the grating. The design is scalable for different wavelengths, and facilitates monolithic integration of optoelectronic devices at a wide range of wavelengths from visible to far infrared.