Hahn Double Hue Test                                                                            View Shopping Cart

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Double 15 Hue Test

Provides the functionality of both Farnsworth D 15 and Lanthony Desaturated 15 Hue Test, but it is much quicker to administer. The Hahn test provides superior color matching and has the same efficiency as an anomaloscope in classifying the type and estimating the degree if all color vision deficiencies. 

The Hahn product consists of a thin black case containing two sets of 15 movable color chips. Test A uses the high chroma and Test B use the low chroma colors. At the center of the case is a transparent circular space for arranging the color chips. A white disk to record the test result which has 15 numbered dots and index lines P, D and T for classifying type as Protan, Deutan or Tritan.

The 15 hues were taken from the C.I.E. chromaticity diagram spaced at nearly equal intervals, using the Standard color paper of Japan (JIS Z8721-1964). 

Daylight Illuminator

Arrangement: Clockwise from chip No 1 chip in order of similar colors.

Recording: Counterclockwise from No 1 shown on the back of the case

(Includes case and stamp for recording scores)

4512C   Hahn Color Vision Double 15 Hue Test .......... Call

Farnsworth 100 Hue Test

Roth 28 Hue Test

Lanthony 40 Hue Test

 

Disc Arrangement Test Comparison Chart

Color Vision Test Comparison Chart

Color Vision Test Index

 

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