Measuring Collimator Infrared (IR) Spectral Transmission

Abstract

Several Infrared (IR) imaging systems have been measured looking down a collimator and a standalone large surface blackbody. They were both focused and had the same total atmospheric path length between source and sensor, yet discrepancies were noticed in that the standalone blackbody measurements were providing more perceived flux even when compensating for vendor provided collimator transmission losses. This report provides the background and discusses the methodology used to measure the actual losses in a collimator.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2016
Accession Number
AD1009521

Entities

People

  • Christopher L Dobbins

Tags

Communities of Interest

  • Advanced Electronics
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Coatings
  • Collimators
  • Data Sets
  • Detectors
  • Emissivity
  • Indium Antimonides
  • Information Security
  • Long-Wavelength Infrared Radiation
  • Losses
  • Measurement
  • Optical Equipment
  • Radiance
  • Security
  • Standards
  • Test Equipment
  • Transmission Loss
  • Urban Areas

Fields of Study

  • Physics

Readers

  • Economics
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Image Processing and Computer Vision.