National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




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A New Method of Producing Continuously Variable Magnification with an Optical System.


AD006353

Publication Date 1952
Personal Author FRY, G. A.
Page Count 10
Abstract No abstract available.
Keywords
  • Optical equipment
  • Focusing
  • Measurement
  • Visual acuity
Source Agency
  • Non Paid Delimited ADS
  • Invalid Source Agency Code
Corporate Authors Ohio State Univ. Research Foundation, Columbus.
Document Type Technical Report
NTIS Issue Number 198107
Contract Number
  • AF33 038 15630
A New Method of Producing Continuously Variable Magnification with an Optical System.
A New Method of Producing Continuously Variable Magnification with an Optical System.
AD006353

  • Optical equipment
  • Focusing
  • Measurement
  • Visual acuity
  • Non Paid Delimited ADS
  • Invalid Source Agency Code
  • AF33 038 15630
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