Pan-STARRS is a highly cost-effective, modular and scalable approach to wide-field optical/NIR imaging. It uses 1.8m
telescopes with very large (7 square degree) field of view and revolutionary1.4 billion pixel CCD cameras with low
noise and rapid read-out to provide broad-band imaging from 400-1000nm wavelength. The first single telescope system,
PS1, has been deployed on Haleakala on Maui, and has been collecting science quality survey data for approximately six
months. PS1 will be joined by a second telescope PS2 in approximately 18 months. A four aperture system is planned to
become operational following the end of the PS1 mission. This will be able to scan the entire visible sky to
approximately 24th magnitude in less than a week, thereby meeting the goals set out by the NAS 2000 decadal review for
a "Large Synoptic Sky Telescope". Here we review the technical design, and give an update on the progress that has
been made with the PS1 system.
Pan-STARRS, the Panoramic Survey Telescope and Rapid Response System, is a project to first develop a single wide field synoptic survey telescope (Pan-STARRS-1) followed by a system of four such telescopes. It is designed to accomplish many of the science goals envisioned by the decadal review for LSST. The primary mission of Pan-STARRS is the detection of potentially hazardous asteroids (PHA), secondary science objectives are a (nearly) all-sky survey, a medium-deep survey, an ultra-deep survey, and studies of transients and variable objects. This paper presents the current status of the telescope design, with emphasis on the optics.