Optical lighting device of image projection display and method of correcting error in turning on of electric discharge lamp

摘要

This invention over which the optical illumination device of the image projector , a light beam from a discharge of the reproduction room configuration that includes an actuator that generated by the discharge lamp which emits , by changing the outgoing light path provided around the lamp and reflector to give , according to the lighting state of the lamp by passing the optionally vibration to the lamp to swing so that the room is dispersed copying provide an optical illumination device that improves the reliability by applying the error protection capabilities of the lamp by light .