Bryan <i>(1)</i> and Bryan and Runge <i>(2)</i> have applied the Polaroid emulsion to emission spectroscopy. Although no details of construction are given in these applications, it is apparent that no provision is made for the location of the film in the oblique angle, curved field of the medium quartz spectrograph. Therefore, a commercially available Polaroid Land camera back was modified so that it could be used interchangeably with conventional 4"x10" spectroscopic plates without any alteration of the optics of such a spectrograph.
J. B. Lombardo, "A Polaroid Attachment For A Medium Quartz Spectrograph," Appl. Spectrosc. 15, 181-183 (1961)