Optical imaging system and device for floating display, and surround-view display device

Abstract

The invention relates to an optical imaging system () and a device for floating display, and a surround-view display device (). The optical imaging system () sequentially defines, along the optical axis thereof, an object plane (), a first image plane () and a second image plane (), and the optical imaging system () comprises at least one imaging unit () arranged between the object plane () and the first image plane () on the optical axis, with the at least one imaging unit () having different light converging capabilities in a first direction and in a second direction, and the first direction and the second direction being orthogonal to the optical axis, respectively; and a main diffusion screen () diverging light in the second direction, the optical imaging system () being configured such that a light beam from a point on the object plane () forms a line image in the first direction on the first image plane (), and the light beam from a point on the object plane () forms a line image in the second direction on the second image plane (), with the second image plane () being a floating image plane.