Progress and future prospect of the CRAFFT project for the next generation UHECR observatory

The next generation of ultra-high energy cosmic ray observations will require large detector arrays to achieve statistics. In order realize next-generation large-scale arrays, the Cosmic Ray Air Fluorescence Fresnel lens Telescope (CRAFFT) project is developing a low-cost simple fluorescence (FD). structure CRAFFT reduce cost about 1/10 current FD. We also aim fully automated observation system. A prototype has been successfully used detect air showers. Since spatial resolution FD rougher than that FD, we are new shower reconstruction method using waveform fitting method. this presentation, report performance detector, optimization, and future prospect.