Projector and image shielding system provided with projector

Abstract

The invention discloses a projector and an image shielding system provided with the projector. The image shielding system comprises the projector and a machine vision system. The projector comprises amain body, a lens assembled on the main body, and an electrochromic displayer, wherein the front end of the lens is exposed out of the front end of the main body, and the electrochromic displayer isfixedly connected to the front end of the lens; the electrochromic displayer comprises a shell and an electrochromic display screen fixedly connected to the middle of the shell. The machine vision system comprises a PC and a camera connected to the front end of the main body of the projector, the output end of the camera is connected with the PC, and the output end of the PC is connected with theelectrochromic displayer; the electrochromic display screen can achieve static shielding and can also achieve dynamic shielding. The shape of a shielding boundary can also be changed according to needs; the machine vision system can achieve synchronization of signals input by the electrochromic display screen and video signals input by the projector, and it is guaranteed that position errors of shielding of images can be avoided.

Description

technical field [0001] The invention relates to the field of projection equipment, in particular to a projector and an image shielding system provided with the projector. Background technique [0002] The projector projects the image onto the screen. According to the imaging principle of the projector, the light source is projected onto the imaging chip, and then projected through the lens into a square 16:9 or 4:3 picture. Sometimes in order to adapt to the projection environment or to achieve a better viewing effect, it is required to only display a part of the picture, and the rest of the picture needs to be blocked and cannot be projected on the screen. [0003] The current solution is generally to add a black shielding sheet to the front end of the projector lens by fastening screws to shield the image that needs to be shielded. In this solution, due to the way of screw fastening, the shading piece is fixed, so the position of its shading is also fixed, so that only ...

AI Technical Summary

Problems solved by technology

In this solution, due to the way of screw fastening, the shading piece is fixed, so the position of its shading is also fixed, so it can only achieve static shading, not dynamic shading

For example, in a picture, it is necessary to block other scenes except the characters. When the characters move from the leftmost end of the screen to the rightmost end, this kind of occlusion sheet with a fixed position cannot meet the requirements.

At the same time, because the shape of this occlusion film is fixed, the occluded boundary of the projected picture is also fixed, and it does not meet the requirements of the boundary transformation of the occlusion picture.

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