Patent ID: 9235112
Filing Date: 2016-01-12
CPC Classification: G03B,H04N

Claim Text:
1. A projector for emitting a plurality of pieces of optical image information, comprising: an optical module for alternately emitting first image information and second image information at intervals, the first image information and the second image information are alternately emitted from the optical module at a first frequency; and an optical path switch installed to be switched on or off from a traveling path of the first and second image information emitted from the optical module, the optical path switch operating at a second frequency, wherein the second frequency is tuned to the first frequency, wherein while the first image information is being emitted, the optical path switch is switched off from the traveling path of the first and second image information, whereby the first image information travels directly in an emission path of the optical module, the emission path being a first path, and while the second image information is being emitted, the optical path switch is switched on to the traveling path of the first and second image information, whereby the second image information travels in a second path by the optical path switch, and wherein the optical module does not emit image information during a dead time which is based on a time it takes for the optical path switch to move between a switched on configuration to a switched off configuration.