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全球投影仪市场(2024-2028年)
Global Projector Market 2024-2028
A projector is an optical device that projects an image or a series of moving images onto a surface, typically a projection screen. Lasers are used in some modern types of projectors to project the image directly. Instead of using an external projection screen, a virtual retinal display or retinal projector projects an image directly onto the retina. Video projectors are the most common type of projector used at present.