Abstract

A method of modulating the light beams of the G.E. recording spectrophotometer is described, which does not involve the use of a polarizing prism, thus obviating de-cementing faults in the prism due to heating during prolonged operational periods. The performance of the modified instrument and its use in measurements of dichroism of dyed films are discussed.

© 1955 Optical Society of America

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References

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  1. A. C. Hardy, J. Opt. Soc. Am. 28, 360 (1938).
    [Crossref]
  2. J. L. Michaelson, J. Opt. Soc. Am. 28, 365 (1938).
    [Crossref]
  3. Sumner, Vickerstaff, and Waters, J. Soc. Dyers Col. 69, 181 (1953).
    [Crossref]

1953 (1)

Sumner, Vickerstaff, and Waters, J. Soc. Dyers Col. 69, 181 (1953).
[Crossref]

1938 (2)

Hardy, A. C.

Michaelson, J. L.

Sumner,

Sumner, Vickerstaff, and Waters, J. Soc. Dyers Col. 69, 181 (1953).
[Crossref]

Vickerstaff,

Sumner, Vickerstaff, and Waters, J. Soc. Dyers Col. 69, 181 (1953).
[Crossref]

Waters,

Sumner, Vickerstaff, and Waters, J. Soc. Dyers Col. 69, 181 (1953).
[Crossref]

J. Opt. Soc. Am. (2)

J. Soc. Dyers Col. (1)

Sumner, Vickerstaff, and Waters, J. Soc. Dyers Col. 69, 181 (1953).
[Crossref]

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Figures (3)

Fig. 1
Fig. 1

Experimental modulator disk.

Fig. 2
Fig. 2

Final optical arrangement.

Fig. 3
Fig. 3

Dichroism of viscose film dyed with Caledon Pink R L measured with new modulator.