This invention presents light maximization method for LED systems. Derived from a general theory that links the photometric, electric and thermal behaviours of LED systems together, the method provides the rules to design LED systems with maximum light output. Its main contribution is to provide cle.....
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An economical and versatile approach is developed to construct photonic structures using well-established solution-based deposition and post-deposition modification techniques. Without sophisticated and expensive vacuum equipment or control systems, such an approach can achieve elaborate periodic mi.....
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The invention concerns a method and apparatus for controlling the output phase of a voltage controlled oscillator (VCO) for use in antenna arrays for receiving radio signals. Such arrays can converge energy, receive signals, and reject interference. Beam-forming techniques using phase shifters are u.....
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Conventional digital holography involves a high amount of computation to generate an object scene, imposing a significant bottleneck to practical applications. The invention presents techniques for efficiently generating full parallel 3D holographic images of a 3D real or synthetic object scene. The.....
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To isolate micro-particles, CityU researchers have developed a method that makes use of moving optical tweezers in the microfluidic chip. The design of the sorter is based on dynamic fluid and light patterns, which enable the sorting of micro-particles, such as cells, from a small amount of samples .....
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