| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily specify a color vision correction lens suited to a color vision defective. <P>SOLUTION: A color vision test device is used for displaying a standard color and a comparison color to be compared with the standard color, specifying an iso-color which is the comparison color that a subject feels that it is equal to the standard color while changing the comparison color, and specifying the color vision correction lens suited to the subject according to the iso-color. The color vision test device includes: a standard color display part 61 capable of displaying white as the standard color; a comparison color forming unit 7 which includes three light sources that are a red light source 7a, a green light source 7b and a blue light source 7c, and which mixes one, two or more of color light emitted by the respective light sources and forms the comparison color; a comparison color display part 81 which is adjacent to the standard color display part 61 and displays the comparison color; a luminous flux ratio varying unit for changing the comparison color by changing the ratio of the luminous fluxes of the three light sources; and a display unit for displaying the ratio of the luminous fluxes of the three light sources, or the ratio of illuminance by the three light sources in the comparison color display part 81. <P>COPYRIGHT: (C)2013,JPO&INPIT |
