(Farbige Papiere)
Description: These papers come in "all" colors of the spectrum in
16 levels, usable for equations/equivalences. Color circles are
made from intense pure hue papers without any glossiness. Such
papers are delivered as sheets (the image shows 18 disks). The
colors can be delivered as sheets, disks of 12 or 20 cm, and also
as gray or black sheets. There are also colored gelatine
(transparent) disks in 9 colors and partial disks which can be
cut to sector shapes. There are also a brightness scale with 25
levels from white to black printed on platinum paper. (Expanded
caption Copyright 1998, Edward J. Haupt)
(Source: None given.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate
(p. 9). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: component
Stimulus: color/hue
System: vision
Output: N/A