Night Vision Devices and Characteristics

Abstract

Night vision goggles (NVGs) are widely used to enhance visual capability during night operations. NVGs are basically composed of an objective lens which focuses an image onto the photo-cathode of an image intensifier tube which in turn produces an amplified image that is viewed through an eyepiece lens. There are several versions of NVGs in use and in development. These include the AN/PVS-5,AN/AVS-6, PVS-7, Cat's Eyes, Nite-Op, Eagle Eyes, Merlin, and others. The first section of this paper provides a brief description and characterization of each of these NVGs. There are several parameters that are used to characterize the image quality and capability of the NVGs. These parameters include field-of-view (FOV), resolution, spectral sensitivity, brightness gain, distortion, magnification, optical axes alignment, image rotation, overlap, beamsplitter ratio, exit pupil diameter, eye relief, and others. Each of these is discussed in the second section of this paper.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1992
Accession Number
ADA430650

Entities

People

  • H. L. Task

Organizations

  • Armstrong Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Asthenopia
  • Binoculars
  • Brightness
  • Distortion
  • Fiber Optics
  • Flight Instruments
  • Frequency
  • Helmet Mounted Displays
  • Military Applications
  • Night Vision
  • Night Vision Devices
  • Optics
  • Sensation
  • Standards
  • Test And Evaluation
  • Visual Acuity

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Human-Computer Interaction (HCI).
  • Personnel Management and Statistics in the Military and Department of Defense