Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer Usage Conditions May Apply Usage Conditions Apply There are restrictions for re-using this media. For more information, visit the Smithsonian's Terms of Use page. IIIF provides researchers rich metadata and image viewing options for comparison of works across cultural heritage collections. More - https://iiif.si.edu View Manifest View in Mirador Viewer

This circular silicon wafer holds two charge coupled devices (CCD). Silicon is the substrate for all CCDs, and usually the silicon is "doped" (infused) to become photoreactive. These devices consist of two dimensional arrays of large numbers of tiny silicon diodes etched into the silicon. Those diodes convert light photons directly to electical signals which are then processed digitally to produce images. Each of the CCD's on surface of this wafer contains an array of 2048 by 4096 pixels for a total of over eight million elements. Because of their enhanced sensitivity CCD's have become favored as detectors for low light level astronomical applications.

This example was manufactured by Scientific Imaging Technologies Inc. and donated by them to NASM in 2000.

 Display Status

This object is not on display at the National Air and Space Museum. It is either on loan or in storage.
Object Details
Country of Origin United States of America Type INSTRUMENTS-Scientific Manufacturer Scientific Imaging Technologies, Inc.
 Dimensions 3-D: 1.3 × 10.2cm (1/2 × 4 in.)
 Materials Silicon
Plastic
White Metal
Paper
Adhesive
Ink
 Inventory Number A20000696000 Credit Line Gift of Scientific Imaging Technologies Inc. Data Source National Air and Space Museum Restrictions & Rights Usage conditions apply
For more information, visit the Smithsonians Terms of Use.