Projecting Apparatus and Projecting Method

Abstract

A projecting apparatus and a projecting method, relates to the field of projecting technologies. The projecting apparatus includes: a light source (1), a projection film (2) and a lens (3), wherein the projection film (2) and the lens (3) are both located in a light path of the light source (1), a focal length of the lens (3) is greater than 0, and a positional relationship between the light source (1) and the lens (3) satisfies a formula: 0 ≤ E ≤ ( 2  1  6 D ) 0 . 8 , wherein E is a distance between the light source and the lens in centimeters; D is the focal length of the lens in centimeters, which solves the technical problem of high costs of 3D protection in the prior art, and can project a pattern on the projection film into a three-dimensional stereo image.

Dependencies are inferred from the claim text.