Sayed Amr El-Hamamsy

Title: Sayed Amr El-Hamamsy: Innovator in Electrodeless Discharge Lamp Technology

Introduction

Sayed Amr El-Hamamsy is a notable inventor based in Schenectady, NY (US). He has made significant contributions to the field of electrodeless discharge lamps, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and functionality of lighting technologies.

Latest Patents

One of his latest patents is for a "Luminaire configuration for electrodeless high intensity discharge lamp." This invention features a segmented excitation coil and capacitor configuration that minimizes light obstruction and RF losses. It provides maximum impedance matching and heat transfer from the coil to a heat sink. The excitation coil consists of at least two pairs of interconnected windings, each arranged concentrically in its own plane. The windings are designed in a toroidal shape, surrounding the arc envelope of a high intensity discharge lamp containing an ionizable gas activatable by RF energy. The design includes large cross-sectional area windings and short leads for capacitors, which help minimize EMI and power losses while facilitating heat transfer to the heat sink.

Another significant patent is the "Electrodeless panel discharge lamp liquid crystal display." This invention involves a light transmissive liquid crystal display illuminated from its rear surface by a juxtaposed flat electrodeless discharge lamp. The lamp consists of a pair of glass plates that seal a fill gas. The front plate has a phosphor coating on its interior surface, while the rear plate features both a phosphor coating and a reflective film. A rectangular array of RF coils behind the rear plate excites a plasma arc discharge within the fill gas, creating adjacent discharge current paths that counter-rotate. The ultraviolet radiation emitted by the plasma arc discharge excites the phosphor, producing visible light of uniform brightness that can be varied by adjusting the RF current amplitude in the coils.

Career Highlights

Sayed Amr El-Hamamsy is currently employed at General Electric Company, where he continues to innovate in the field of lighting technology. His work has contributed to advancements in energy-efficient lighting solutions.

Collaborations

He has collaborated with notable coworkers such as John M Anderson and James T Dakin, further enhancing the innovative efforts within his team.

Conclusion

Sayed Amr El-Hamamsy is a distinguished