Accession Number : AD0164051

Title :   Illuminated Grid for Backlighted Plotting Boards.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Cotton,Simeon H. , Jr. ; Cagna,Bruno A.

Report Date : 10 MAR 1970

Pagination or Media Count : 3

Abstract : The patent relates to a backlighted plotting board or other display covered with a translucent material having information inscribed thereon in paints which are sensitive to different frequencies of light. When the plotting board is backlighted with natural light the information thereon is visible through the translucent material and paints which are not sensitive to natural light. When the backlighting is removed and light of different frequency, for example in the ultra violet range of frequencies, is directed to the front of the display the information on the plotting board disappears and that on the translucent material becomes visible.

Descriptors :   (*DISPLAY SYSTEMS, *PATENTS), LIGHTING EQUIPMENT, PANELS, LAMINATES, ILLUMINATION

Subject Categories : Cartography and Aerial Photography
      Air Condition, Heating, Lighting & Ventilating

Distribution Statement : APPROVED FOR PUBLIC RELEASE