Projection monitor having darkroom

Abstract

The present invention relates to a projection monitor, and in particular to a projection monitor having a darkroom casing capable of preventing a penetration of a foreign material and any leakage of light and easily assembling reflection mirrors which guide the image projected by the engine to a screen. The projection monitor having a darkroom casing according to the present invention includes a front casing having a screen installed on a front surface of the same, a rear casing engaged to the back of the front casing and forming a sealed space behind the front casing, a darkroom casing engaged to the back of the front casing in the rear casing and forming a darkroom by which a foreign material and light do not penetrate into the interior of the rear casing, an engine installed in the interior of the darkroom casing and generating and light in accordance with an input of an electrical video signal and projecting an image, and at least three reflection mirrors attached on an inner wall of the darkroom casing and sequentially reflecting the image projected by the engine and guiding the image to the screen and being inserted into fixing ribs installed parallel on the ceiling of the darkroom casing like a drawer. In the present invention, since the image projected by the engine is projected on the screen without any scattering and interference and leakage, the resolution is excellent. In addition, it is possible to easily assembly the reflection mirrors on the ceiling of the darkroom casing.

Dependencies are inferred from the claim text.