Projection apparatus and operation method thereof

Abstract

The present invention provides a projection apparatus and an operation method thereof. The projection apparatus comprises a projector and an image capturing device electrically connected to the projector. The projector provides a projection space, and the image capturing device provides an image capturing space. The projection space is located in the image capturing space. The image capturing device is configured to identify a boundary of the projection space in the image capturing space and is configured to detect a biological part located in the projection space. The image capturing device is configured to calculate a position of the biological part in the projection space, and the projector projects a mask block corresponding to the position of the biological part in the projection space. The present invention may prevent the light beam from interfering with a user.

Dependencies are inferred from the claim text.