|Object Name||Test, Color-perception|
|Title||Color Vision Diagram|
Half -circle top, flat. Made of heavy plastic (?). A piece of thick fabric with an eyelet in it to hang the diagram from for display. The front has shadings of color--blue, green, yellow, etc. The back has a sticker "Dr. Gunkel" and writing "Colorblind Painting by Gay Glading, for Dr. Gunkel, 1981." Included are charts for a presentation about "Color Vision and the Circular Diagram." The carrying case is flowered fabric, zipper close, with a metal brace on the bottom.
89.0001.378.01 - Circular Painted Diagram of Color Vision (large, flat)
89.0001.378.02 - Circle of White Cardboard
89.0001.378.03 - Punched Metal Support Panel
89.0001.378.04 - Flowered Fabric Carrying Case
|Caption||Color Vision Diagram|
|Provenance||Dr. Gunkel developed this color diagram to plot a person’s color vision thresholds to help identify the kind of defect leading to color blindness. Sir Isaac Newton’s chart had saturated colors around the periphery diminishing into white in the center. Any color is then represented by a unique point in the circle described by polar coordinates. But pigment colors may not be an adequate test of basic color sense, so Gunkel developed this color diagram.|
|Number of images||1|
|Organizations||NIH; NEI (National Eye Institute)|
|Buildings||Building 10 ("CC" Warren Grant Magnuson Clinical Center)|
|NIH Property #||none|
|Old NIH Property #||none|
Gunkel, Ralph D.