Abstract

The calibration of the response of photographic emulsions using rotating step-sectors may lead to erroneous results when intermittent spectrographic light sources are used. These errors arise through partial synchronization between the periodicity of the light pulses and the passage of sector apertures in front of the spectrograph slit. A design for a rotating step-sector which should overcome synchronization possibilities has been conceived and some actual sectors have been tested. This sector essentially consists of a series of stepped apertures randomly spaced about the periphery of a rotating disk. Data are presented to show that the random spacing of the sector apertures eliminates the possibilities of introducing errors through synchronization effects when conventional intermittent discharges are used.

© 1955 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
A Step-Sector for the Astigmatic Spectrograph

Ralph E. Thiers
J. Opt. Soc. Am. 40(12) 849-851 (1950)

Homochromatic Spectrophotometry in the Extreme Ultraviolet

George R. Harrison and Philip A. Leighton
J. Opt. Soc. Am. 20(6) 313-330 (1930)

The Intermittency Effect in Photographic Exposure

Clarence E. Weinland
J. Opt. Soc. Am. 15(6) 337-353 (1927)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (1)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription