Patent ID: 7378631

Claim:
An image projection apparatus comprising: a light source unit for sequentially emitting lights generated by a red (R)-light emitting element, a green (G)-light emitting element, and a blue (B)-light emitting element; an image generation unit for generating an image using the lights sequentially emitted from the light source unit and projecting the image; a driving unit for driving the light source unit and the image generation unit, comprising an image generation driving unit for generating reflection angle adjustment signals to adjust reflection angles for the lights sequentially entering the image generation unit from the light source for each pixel and supplying the reflection angle adjustment signals to the image generation unit such that the image generation unit generates and projects the image; a light sensor for measuring levels of lights generated by the R-light emitting element, the G-light emitting element, and the B-light emitting element; and a controller for controlling a driving operation of the driving unit based on the levels of lights measured by the light sensor to adjust a white balance of the image projected from the image generation unit; wherein the controller determines levels of the reflection angle adjustment signals based on the levels of lights measured by the light sensor and controls the image generation driving unit to generate reflection angle adjustment signals according to the determined levels of reflection angle adjustment signals.