Patent ID: 9033521
Filing Date: 2015-05-19
Classification: G03B,H04N

Abstract:
1. A projection device having an image beam and an off-state light, comprising: a light source configured to emit a light beam; a color filter configured to enable the light beam to pass therethrough; an integrator configured to unify the light beam after the light beam passes through the color filter; a camera module; a condensing element configured to condense the light beam after the light beam is unified by the integrator; an image beam providing device configured to receive the condensed light beam and provide the image beam to enter the camera module; and a first shading element being not located in a path of the image beam to enter the camera module and configured at one of a first position between the camera module and the condensing element, and a second position between the image beam providing device and the condensing element to block the off-state light.