| 摘要 |
A line type beam projector is provided to minimize a surrounding environment restriction due to a projection distance and an image-covering effect due to a man and an object by excluding a regular projection interval required to an existing beam projector. A square image of an X a size outputted from an image output part(B) as a ling type beam projector passes through a Fresnel lens(9) for collecting light. The square image is reflected on a plane total-reflecting mirror(10) and a curved total-reflecting mirror(4). The image reflected by the curved total-reflecting mirror is outputted by a curved total-reflecting mirror(3). The image enlarged by the curved total-reflecting mirror is outputted into a Fresnel lens(2). The enlarged image is changed to the parallel image by using the Fresnel lens. The parallel image passes through a custom-made Fresnel lens(1). The final image is displayed on a screen.
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