OPTICAL SPOT SIZE STUDY FOR DATA EXTRACTION FROM A TRANSPARENCY.

Abstract

A breadboard model scanner using coherent light to generate a small optical spot for data extraction from a transparency was constructed. Using the technique developed, a capability of distinguishing 256 1p/mm and 30 shades of grey from light to dark was demonstrated. The system consists of a laser light source, a beam expander, a beam normalizer, a rotating optical scanning system to cover a 2 inch wide transparency, a transparency holder, a light collector and a photomultiplier assembly including video amplifier and high voltage power supply. These system components are basically 'off-the-shelf' items. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1965
Accession Number
AD0628588

Entities

People

  • H. A. Cubberly
  • L. L. Izzo

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accumulators
  • Amplifiers
  • Assembly
  • Breadboard Models
  • Extraction
  • High Voltage
  • Light Sources
  • Models
  • Optical Scanning
  • Power Supplies
  • Scanners
  • Scanning
  • Transparencies
  • Video
  • Video Amplifiers

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Image Processing and Computer Vision.
  • Logistics and Supply Chain Management.

Technology Areas

  • Directed Energy