Abstract

Digital recording of spectra on magnetic tape in computer format is described and illustrated. The density of points required and the resulting volume of data are considered both as to the needs for computation and for spectral representation. For maximum resolution in wavelength or frequency, digital discrimination should recognize intervals of less than one-tenth the spectral slit width. At least five points for each interval is suggested. Noise reduction by computer averaging of points within each interval is shown.

© 1960 Optical Society of America

Use of a Digital Readout Unit in Converting Spectrophotometric Data to Color Coordinates

Fred W. Billmeyer
J. Opt. Soc. Am. 50(2) 137-143 (1960)

Absorptivity Recorder

D. D. Tunnicliff and Roland C. Hawes
J. Opt. Soc. Am. 50(11) 1039-1042 (1960)

Eye Movement and Stimulus Movement; New Photoelectric Electromechanical System for Recording and Measuring Tracking Motions of the Eye*

William M. Smith and Peter J. Warter
J. Opt. Soc. Am. 50(3) 245-250 (1960)

Automatic Slit Drive for Infrared Spectrometers*

D. F. Eggers and M. T. Emerson
J. Opt. Soc. Am. 50(1) 11-13 (1960)

Formulation of Transparent Colors with a Digital Computer

F. W. Billmeyer, J. K. Beasley, and J. A. Sheldon
J. Opt. Soc. Am. 50(1) 70-72 (1960)