Photography by Infrared: Its Principles and Applications

By Walter Clark | Go to book overview

Appendix I
INFRARED MATERIALS AVAILABLE COMMERCIALLY

The following list includes all those infrared-sensitive materials known to the author to be on the market in November 1945. All of them are sensitive in the violet and blue. The data given relate to their approxihate sensitivity range in the infrared, and the position of maximum sensitivity in the infrared if it can be defined.

Sensitivity Sensitivity
Manufacturer and Name of MaterialRange in AMaximum in A
Eastman Kodak Co.
Kodak Infrared Sheet Film 6,800-8,600 8,300
Kodak Infrared Film (Miniature and
Roll) 6,800-8,600 8,300
Kodak Aerographic Infrared Film
(Reconnaissance)* 6,800-8,600 8,300
Eastman Infrared Negative Film
(35 mm) 6,800-8,600 8,300
Kodak Infrared-Sensitive Plates 6,800-8,600 8,300
Eastman Spectroscopic Plates (see
Figure 20, pp. 88, 89)
Eight classes of sensitizing cover
ing spectral regions out to 12,000 A
are available in up to five basic emul-
ion types.
Ilford, Ltd., England
Ilford Infra-red Process Plates 6,500-8,500 8,100
Kodak, Ltd., England
Kodak I.R.E.R. Extra Rapid Infra
red Plate 6,800-8,600 8,300
Kodak Scientific Plates
A series of infrared-sensitive plates
for scientific purposes corresponding
in general to the Eastman Spectro-
scopic Plates

Ansco, DuPont, and Ilford have stated that they have temporarily withdrawn their infrared products from the market. It is understood that during the war the German Agfa company made infrared plates and films and special infrared plates for scientific purposes, but presumably they will no longer be available. In some Russian articles, mention has been made of Russian infrared materials, but no details are available.

____________________
*
Earlier called Eastman Infrared Aero Film.

-445-

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