Abstract: A projector includes a housing, an optical unit, and a heat transfer module. The housing is made of a material with high thermal conductivity having a window. The optical unit is accommodated in the housing and further includes a light source, a panel, and a projection lens. The light source provides a light. The panel modulates the light. The projection lens projects the modulated light to leave the window. The heat transfer module is accommodated in the housing and connected the optical unit and the housing to transfer heat from the optical unit to the housing. Particularly, the projector is a cooling-fan saved projector. In addition, the projector further comprises a computer card adapter and a computer card inserted into the computer card adapter.

Abstract: A multi-functional sticker device for a compact disk is composed of a base and a lid. The lid at two opposite lateral sides thereof is formed a locating recess to engage with a guide plate respectively. A spring is provided between the base and the lid and a movable seat is disposed at the top of the spring with a central cylinder to extend upward through a central hole of a fixing disk on the lid. The fixing disk is provided with two opposite elongated slots with respect to the central hole and the central cylinder is provided with two engaging frames extending outward oppositely with slits corresponding to these two slots. The sticker is laid on the fixing disk to be attached to a circular compact disk being pressed to move downward.