Abstract: A projection lamp is provided, which includes a first shell assembly, a projection assembly and a light shielding member. The first shell assembly includes a transparent mask. The projection assembly includes an optical lens, an optical element, a light source and a driving source for driving the optical element to move. The optical element is positioned to direct light from the light source to the optical lens when the light source is powered. At least part of the light shielding member is disposed between the peripheral region of the transparent mask and the peripheral region of the optical lens. The light shielding member has a first opening, and the light from the light source only passes through the first opening of the light shielding member to emit out from the transparent mask after passing through the optical lens.

Abstract: Value added service integrated settlement methods: (1) Firstly setup the transaction model of the integration settlement, that is put the settlement participants as the attribute main body of interface layer: provide data interaction between the inside and the outside of the system; service logical layer: complete the data collection, pretreatment, rule generation application, settlement process operation and settlement result management during the settlement process; data layer: data store based on database technology. (2) The settlement functions of the whole value added services are divided into different settlement processes, according to different models of service operation, different service process various types (short message, downloading, and movies), and different billing elements and settlement references. The same participants will take part in several services. The settlement elements will be put into different settlement processes.