Historical Perspective - Kodak DirectView CR 800 System Theory Manual

Historical Perspective

While curiosity and investigation of the phenomenon whereby phosphors release energy in the form of light, dates to the early 17th century, it wasn't until the late 19th
century that the concept of "optical de-excitation" was described. Since that time, the development of techniques to make use of the distinctive characteristics of
photostimulable phosphors, or storage phosphors, has moved from mere curiosity to modern uses such as in Computer Radiography Systems produced by Eastman
Kodak and its competitors.
1843
1881
1920
1926
1936
1941 - 1947
1947
1970 - 1972
1975 - today
1983
1992
1994
2000
1234563 – 12/12/94
A. E. Becquerel - investigated invisible regions of the solar spectrum
Draper - Published phosphorographs of the solar spectrum
G. T. Hooft - Created photographic prints using phosphor screen intermediates
Hirsch - Developed a device employing storage phosphors to record an image. Using heat, the image was
"revived" for viewing in a dark room. A red light erased the image and the phosphpro screen was reused.
J. Kunz and F. Urbach - First patent for creating images from stimulable phosphors (U.S. Pat. 2,074,226)
Research continued worldwide, including the U. S. Military, using different types of phosphors.
O. Berg and H. Kaiser - Created contact radiographs on film with stimulated screens.
G. Luckey / Eastman Kodak Co. - Developed and patented a storage phosphor scanning system for
radiography. (U.S. Pat. 3,859,527 in 1975).
Worldwide research in computed radiography led to developments in materials, scanning systems, image
processing capabilities, etc.
First computed radiography, storage phosphor-based system was commercialized.
Kodak installed the first Kodak Ektascan Imagelink Storage Phosphor Reader, Model 3110.
Kodak Ektascan Imagelink Storage Phosphor Reader, Model 5110 is introduced.
Kodak DirectView CR 800 System is introduced.
System Overview
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