BigPatents India

A portable micro projector and microscope very much affordably exposes the invisible biological objects. The device comprises two tiny, hemispherical lenses of high magnifying power made using surface tension of liquid for observation of a biological slide inside a slide holder (6). The slide is enlightened from bellow by a white light emitting diode (22) with a tiny condenser lens (19) inside a cover (12). A potentiometer controls the light intensity. A threaded pipe (5) with the objective lens made of transparent polymer at the centre of its bottom focuses the image through the roof (6) of the slide holder. A cap (2) of the threaded pipe (5) contains the eye piece made from drops of d.p.x. mountant (glass fixer) confined between two g1ass plates (3, 4). Projection is made and Lower magnification is also observed removing the eye piece (2). Higher magnification is observed using the eyepiece. (FIG.1).