Abstract

A method for making long focal length galvanometer mirrors is described, together with a scheme utilizing a multiple light source for extending the range of the galvanometer deflection recorder. The use of three-meter focal length mirrors and the multiple light source is described for a double galvanometer recorder placed at four meters from the recorder. The traces of the second galvanometer are made distinguishable from those of the first by recording dotted lines produced by a rotating vane in the light path of the second galvanometer. A trace of the ultraviolet continuum from a hydrogen emission spectrum is given on single and multiple range recordings to illustrate the use of this particular recorder.

© 1942 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Photoelectric Detection and Intensity Measurement in Raman Spectra

D. H. Rank, R. J. Pfister, and P. D. Coleman
J. Opt. Soc. Am. 32(7) 390-396 (1942)

A Long Optical Path in a Restricted Space

H. R. Kratz and J. E. Mack
J. Opt. Soc. Am. 32(8) 457-464 (1942)

The Fatigue Effect in Luminescent Materials

N. C. Beese and J. W. Marden
J. Opt. Soc. Am. 32(6) 317-318 (1942)

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 (2)

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