Abstract: A light string has a pair of wires and a plurality of alternating current light-emitting diodes (AC LEDs). The pair of wires is arranged to provide an AC voltage. Each of the AC LEDs is electrically connected in parallel between the pair of wires. The light string can decrease the manufacturing cost, reduce the space occupied by additional circuitry, and lower heat produced thereby for enhancing the operational safety of long-term use.

Abstract: The present invention discloses an optical fiber twig tree, which comprises a plurality of plastic optical fiber bundles and a stand structure; wherein the plastic optical fiber bundles are designed in a shape corresponding to the branches of the optical fiber twig tree and tied into a fixed position by a tie. The plastic optical fiber bundles are disposed at the bottom of the stand, and coupled with an illuminating structure. A hook at one end of a main branch of the stand is latched into a screw of a branch base, such that the whole stand with the plastic optical fiber bundles can swing up and down freely to adjust their position at an angle. Further, the main stand comprises a plurality of branch bases to constitute the optical fiber twig tree, and such product can be used as a decoration for festivals or Christmas.

Abstract: A decorative light-transmission device includes a light source and a flexible light-transmission structure positioned adjacent to the light source and combined with an object to be decorated. The light-transmission structure receives and radiates the light from the light source, and the radiation of the light-transmission structure illuminates the object to be decorated.

Abstract: The present invention is related to a plastic optical fiber bundle with pitched illumination decorations. A single plastic optical fiber is reeled off and spun through a spinning nozzle. The surface of the plastic optical filer is then destructed in a pitched manner based on an appropriate pitched unit before the plastic optical fiber is cooled in a cooling area. When destructing the plastic optical fiber, only the outer layer is destructed without affecting the inner layer to produce a pitched destruction and illumination effect on the surface of the plastic optical fiber. A plastic optical fiber bundle is formed by individual plastic optical fibers with spaced illumination decorations. An illumination structure is installed on each end of the plastic optical fiber bundle with pitched illumination decorations and a luminary or a spotlight bulb is installed in each illumination structure of the plastic optical fiber bundle with illumination decorations.

Abstract: The present invention discloses an optical fiber twig tree, which comprises a plurality of plastic optical fiber bundles and a stand structure; wherein the plastic optical fiber bundles are designed in a shape corresponding to the branches of the optical fiber twig tree and tied into a fixed position by a tie. The plastic optical fiber bundles are disposed at the bottom of the stand, and coupled with an illuminating structure. A hook at one end of a main branch of the stand is latched into a screw of a branch base, such that the whole stand with the plastic optical fiber bundles can swing up and down freely to adjust their position at an angle. Further, the main stand comprises a plurality of branch bases to constitute the optical fiber twig tree, and such product can be used as a decoration for festivals or Christmas.