Abstract: The present invention provides an assembling structure for replaceably assembling a lamp to an image output device. The image output device includes a housing and a lens. The housing includes a first surface having an opening. The lens is positioned on the first surface. The structure of the present invention includes a body being movably disposed within the housing via the opening and a cover corresponding to the opening. The cover is positioned at a first position for covering the opening, and, as the cover is moved to a second position, the opening is exposed allowing the body to move into or move out of the housing through the opening.

Abstract: An assembled housing of rear projection television comprising a foldable main framework and a foldable back cover is disclosed. The main framework is a flat structure as folded, while the main framework forms a ring structure as unfolded. The ring structure includes a front opening and a back opening, while the back cover is positioned in the back opening to form a chamber. The foldable design of the housing facilitates the users and the vendors to assemble the rear projection television, and also reduce the hardware space occupied by the housing, so as to reduce the cost of transportation compared to a traditional rear projection television.

Abstract: A projector has a housing, a light source positioned within the housing to generate light, a fan positioned beside the light source to dissipate heat generated by the light source, and an air vent positioned beside the fan to guide heat out of the housing. The air vent reduces turbulence, and thus noise, by the addition of at least one guiding rib. The guiding rib causes heat to flow fluently through the air vent and out of the housing.