Drawing aid
OwnerMarcel Gosselininventor
Life of this patent
Estimating the term…
Abstract
An artist's drawing aid comprises a screen through which a three dimensional object can be observed. The screen is transparent allowing the object to be traced onto the screen using an eye piece to hold the eye position stationary. When traced, the object can be transferred to a translucent sheet of paper by placing the paper over the screen and by illuminating the screen through one edge so as to illuminate the traced lines. The screen is mounted on a easel construction with a shield above the screen. Edge illumination can be effected by a light bulb or by a cylindrical lens mounted on the edge of the screen and movable transversely of the edge to properly direct ambient light into the screen.
Claims16
A method for assisting drawing on a translucent sheet material of a three dimensional object comprising viewing the object through a substantially transparent flat plastics screen having a front surface, a rear surface and at least one edge, supporting the screen such that the object can be viewed therethrough from the front surface through the rear surface with the object behind the rear surface, marking on the front surface of the screen using a marker to form lines on the front surface tracing an outline of the object as viewed, placing the sheet of translucent material on the front surface of the screen to cover said marked lines, supplying light through said edge of the screen, the marker having the characteristic that when the screen is illuminated by light supplied through said edge the marked lines formed by the marker are illuminated by causing extraction is light through the front surface of the screen at the lines and tracing the illuminated marked lines onto the translucent sheet.
Apparatus for assisting drawing of a three dimensional object comprising a substantially transparent flat plastic screen having a front surface, a rear surface and at least one edge, means for mounting the screen for viewing of the object through the screen means for supplying light through said edge of the screen for illuminating marked lines applied to the front surface of the screen, and a stationary eye piece mounted forwardly of the front surface of the screen, the eye piece being adjustable in position relative to the front surface, the eye piece comprising a surface arranged to be brought to a position adjacent the eye and a hole through the surface through which the object can be observed, and the eye piece being mounted upon an arm connected to the screen and movable relative to the screen.
Apparatus for assisting drawing of a three dimensional object comprising a substantially transparent flat plastic screen having a front surface, a rear surface and at least one edge, means for mounting the screen for viewing of the object through the screen means for supplying light through said edge of the screen for illuminating marked lines applied to the front surface of the screen and shade member mounted relative to the screen so as to be movable from a folded position substantially flat against the screen to an outwardly projecting position extending substantially at right angles to the screen so as to shade the front surface of the screen from ambient illumination.
Apparatus for use in drawing comprising a substantially transparent flat plastic screen having a front surface, a rear surface and at least one edge, and means for supplying light through said edge of the screen for illuminating marked lines applied to the front surface of the screen, the source of light comprising an elongate cylindrical lens member extending substantially along the full length of the edge and arranged to concentrate light from ambient light into the edge and means mounting the lens member immediately adjacent the edge for movement transversely of the screen relative to the edge for directional control of the illumination from the ambient light.
Dependencies are inferred from the claim text.