Definitions for "Camera lucida"
An instrument which by means of a prism of a peculiar form, or an arrangement of mirrors, causes an apparent image of an external object or objects to appear as if projected upon a plane surface, as of paper or canvas, so that the outlines may conveniently traced. It is generally used with the microscope.
An art tool that uses a prism to concentrate and project light onto paper (or some other surface) so you can trace the resulting image.
an optical device consisting of an attachment that enables an observer to view simultaneously the image and a drawing surface for sketching it