Multipurpose projector with detachable projecting unit
 Multipurpose projector having a detachable projecting unit including a body having a sheet of transparent glass disposed in the top part thereof and an attaching recess at one side of an optical system region therein; a projecting unit attachable into the attaching recess or disposable right over the transparent glass by means of rotatable post attached to the body at the user's option; a liquid crystal display projector part having a light source disposed movably in a vertical direction in rear part of the optical system in the body, a first focusing lens for focusing the light emitted from the light source, a liquid crystal panel for receiving light focused by the first focusing lens, and a zoom lens; an overhead projector part disposed in the optical system in the body having a second focusing lens, a plurality of total reflection mirrors for deflecting a path of the light focused by the second focusing lens at a right angle from a horizontal direction to a vertical direction, and a Fresnel lens detachably disposed in the body for focusing the light deflected into the vertical direction at the total reflection mirrors; and an image sensor disposed in the rear part of a projecting lens in the liquid crystal display part. Such a projector allows still image projection, moving picture projection, print copying and image copying, at the user's option. 
LG Electronics Inc.
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Seung G.
Lee