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Infrared photography revisited

J W Henderson¹

¹Department of Veterans Affairs Medical Center, Portland, Oregon 97201-1034.

The Journal of Audiovisual Media in Medicine

|October 1, 1993

Summary

Infrared photography has evolved over 40 years, with medical uses declining but overall applications rising. Understanding the electromagnetic spectrum enhances appreciation for its modern potential and educational uses.

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Area of Science:

Optics and Imaging
Electromagnetic Spectrum Applications

Background:

Infrared photography has undergone significant evolution over the past four decades.
While its medical applications have decreased, its general usage has markedly increased.

Purpose of the Study:

To explore the evolution of applied infrared photography.
To highlight the importance of understanding the electromagnetic spectrum for appreciating infrared film's potential.
To discuss advancements in film processing and their impact.

Main Methods:

Analysis of historical trends in infrared photography applications.
Review of the principles of the electromagnetic spectrum and human vision.
Examination of advancements in film processing techniques.

Main Results:

A decline in medical applications contrasted with a substantial rise in overall use.
Improved film processing has led to enhanced film speed and direct positive transparencies.
The development of direct positive transparencies offers benefits for educational purposes.

Conclusions:

Understanding the electromagnetic spectrum is key to recognizing the expanded potential of infrared photography.
Technological improvements in film processing have broadened its utility.
Infrared photography remains a valuable tool, particularly as an educational aid.

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