A spectrocolorimeter is a form of spectrophotometer that can calculate tristimulus values, or the the light intensity of primary color values in a sample.

Klett Bio Colorimeter, a device used in colorimetry to measure the absorbance of particular wavelengths of light by a specific solution. Colorimeters are commonly used to determine the concentration of a known solute in…

Electric-powered meter with instructions housed in wooden box. Movable components within box: two (2) slide glass filters (1 with red, green, and blue slides; 1 with orange, green, and blue slides); one (1) encasing to…

Spectroscope is in the style of the original Bunsen-Kirchhoff design. Triangular glass prism sits on a round, brass dias and is held in place by a metal arm attached to the dias; prism is coated in black paint with only…

A: Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, plungers, and a mechanism for raising and lowering the sample cups; two metal knobs control the height of the sample…

A: Duboscq type colorimeter, biological, with electric illuminator. Hollow black cast iron base attached to a sloping cast iron upright supporting the reader, prisms, and sample cups; reader detaches with two metal…

Cast iron base attached to a sloping cast iron upright supporting the reader, prisms, sample cups, and a mechanism for raising and lowering the sample cups on a focusing rail; metal knobs on each side control the height…

Wooden box with metal instrument panel on top; four small black rubber feet on bottom; front of wooden box contains printed instructions and folds down to show inside of instrument; rectangular wooden area attached to…