HIGH-SPEED RECORDING ON INFRARED FILM WITH GALLIUM ARSENIDE LIGHT EMITTING DIODES,

Abstract

Optical recording on high-speed infrared film with two gallium arsenide intensity-modulated light emitting diodes (LED-10 and LED-11) was experimentally investigated to determine the maximum frequency of recording under the limitations of a system having the following components: (1) An Oscillo Record Camera Model F-246A at f/1.5 with the auxiliary optics of two identical lenses with diameters of 0.19 inch and focal lengths of 0.20 inch; (2) High-Speed Infrared Film; and (3) the LED-10 modulator. The optical system (light source, lens system, and film) limited the frequency of response to about 15 kHz at 295K and 1 MHz at 77K. However, the transport speed of the film (60 in./sec maximum) further limited the maximum detectable frequency to approximately 6 kHz. The optical system limited the spatial frequency to a maximum of about 10 lines/mm. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 17, 1967
Accession Number
AD0664653

Entities

People

  • Milton Green

Organizations

  • Navy Underwater Sound Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Cameras
  • Diameters
  • Diodes
  • Frequency
  • Gallium
  • Gallium Arsenides
  • Infrared Film
  • Intensity
  • Lasers
  • Light Emitting Diodes
  • Light Sources
  • Modulators
  • Optical Equipment
  • Photography
  • Transport Ships

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Optical Physics and Photonics.
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics