Patent ID: 9438871
Filing Date: 2016-09-06
CPC Classification: G01S,G02B,H04N

Claim Text:
1. A laser projection apparatus with bundled fibers comprising: a laser light source which emits infrared laser light, and red, green, and blue laser lights; a fixing device which fixes an exit end portion of an infrared light radiating fiber used to transmit the infrared laser light and exit end portions of colored light radiating fibers used to transmit the red, green, and blue laser lights, respectively; a scanning unit which projects an image on a projection surface by scanning the projection surface with the red, green, and blue laser lights emitted from the exit end portions of the colored light radiating fibers without combining the red, green, and blue laser lights with each other; a detection unit which detects a reflected light of the infrared laser light emitted from the exit end portion of the infrared light radiating fiber; and a control unit which controls emission of the red, green, and blue laser lights from the laser light source, based on information detected by the detection unit, so as to correct positional displacement occurring between projection points of the red, green, and blue laser lights on the projection surface, wherein the control unit shifts emission timings of the red, green, and blue laser lights with respect to each other, based on an amount of positional displacement occurring between projection points of the red, green, and blue laser lights on the projection surface due to a positional relationship between the colored light radiating fibers fixed by the fixing device.