Antiques - Art - Ceramics - Murals - Paint
Aug. 08, 1972 - What Is It? It's a composite photo of a conical antenna used in Lockheed Missiles and Space Co. Spacecraft. Lockheed photographer Randy Adams shot one of the cones then arranged various size prints of it this way. The antenna consisting of a thin strip of copper spiralled on plastic is produced by a photo-etching method. The plastic cone is coated with copper and covered with an emulsion then a computer made negative of the spiral pattern is wrapped around the cone. The negative is exposed and the spiral printed on the cone. The unexposed copper in the space between the spiral lines is etched away leaving a thin spiral of copper which acts as the antenna
Picture No
13283785
Media ID
47062892
Size
3945px x 5199px
(1.3MB)
Credit
(c) Keystone Pictures USA/ZUMAPRESS.com/Mary Evans
Usage Restrictions
Editorial Use Only - No Property or Model Releases. For any non-editorial use, please contact Mary Evans direct
Source
Keystone Pictures USA
