a musical instrument which through a prism of a peculiar type or an arrangement of mirrors causes an apparent picture of an external object or things to seem like projected upon an airplane surface since paper or canvas so the outlines may easily traced it's typically combined with the microscope
- an optical device comprising an attachment that allows an observer to view simultaneously the image and a drawing surface for sketching it
- An instrument which by way of a prism of a peculiar kind, or an arrangement of mirrors, causes an apparent picture of an additional object or items to look as though projected upon a plane area, as of report or fabric, so your outlines may easily tracked. Its generally combined with the microscope.
digital camera lucida
About the beginning of the 19th century Dr Wollaston invented a simple form of the camera lucida which gives bright and erect images.