Optical assembly for rear projection television

Abstract

The present invention comprises a carrier, an optical engine disposed on the carrier, and a hood member coupled to the carrier at the front end of the optical engine. The hood member has an inlet coupled to the optical engine and an outlet sealed with a screen. At least one mirror is placed in an optical path between the optical engine and the screen for reflecting a beam from the optical engine, and is disposed with an adjusting bolt at its backside for adjusting. The hood member wraps the optical path from the optical engine to the screen for keeping the optical engine outside and preventing the external dust, moisture, and temperature.

Dependencies are inferred from the claim text.