| 摘要 |
<p>A thermographic drawing device (10) includes a molded plastic generally planar housing (11) which in turn defines a recessed generally planar palette surface (20). The palette surface supports a layer of preferably colorful material (21) upon which a covering layer (22) of thermochromic or thermographic material is formed. In its preferred form, thermographic material is generally dark colored and opaque at cooler temperatures and is changed to a light transmissive or clear configuration when heated to higher temperatures. To provide the appearance of drawing upon drawing device, a heated pen (50) is provided which permits the user to locally heat portions of the thermographic coating causing it to convert to a clear or light transmissive characteristic thereby exposing the underlying colored layer and providing the appearance of colorful drawn objects. In addition, an eraser (70) having an interior cavity (75) for receiving cool liquid provides an 'eraser' action by cooling the thermographic layer and restoring the thermographic material to its darkened characteristic which obscures the underlying colored area.</p> |
