A VIDEO PROJECTOR AND OPTICAL ENGINE

摘要

The present invention relates to a video projector ( 10 ) including a housing ( 18 ) and an optical engine ( 40 ) located therein for projecting an image onto a distal surface. The optical engine ( 40 ) includes a liquid crystal display (LCD) projector and further includes an objective lens ( 38 ) to focus the image. Such a configuration makes the projector ( 10 ) ruggedised in that the optical engine ( 40 ) securely holds all of the components necessary to project an image, including the objective lens ( 38 ). Furthermore, there exists a channel ( 42 ) between the optical engine ( 40 ) and the housing ( 18 ) which, together with a fan ( 58 ) and two strategically positioned cooling vents, allows for the optical components located within the optical engine ( 40 ) to be sufficiently cooled. The projector ( 10 ) operates through the use of a cooled transformer located in a base ( 12 ) which converts mains input, typically 240/110 V, to 12 V.