Disclosed is a network camera data management system for managing camera data of a network camera, including: a data importing device, a splitting and storing device, and a data retrieving device. An upper rail is formed by a main body portion and a vertical wall protruding upward from a center of an upper wall and protruding upward from an opening portion. The status of the game play are provided a game world engine that determines when gambling events should be provided based on the status of game play and a real world engine resolves the gambling event and associated wagers. Various embodiments comprising multiple arrays of ridges andor grooves can enhance uniformity of illumination of the pixels in the spatial light modulator and reduce Moir\xe9 effects. The invention also extends to HIV vaccines comprising the same and use in treatmentprevention of HIV.