TARGET DISPLAY DEVICE, TARGET DISPLAY METHOD, AND PROGRAM

• Main Authors: TANAKA YOSHIKI, ICHIKAWA KAZUO, YOKOYAMA SHO
• Format: Patent
• Language: English; Japanese
• Published: 02.03.2023
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

To provide a target display device or a target presentation method capable of sharply examining a vision function by cone in a device for displaying a target of a chromatic color, or in a method for presenting the target for examining a vision function on a color of a subject.SOLUTION: A target 8 of a chromatic color for examining a vision function on a color of a subject, and a background 9 in the surrounding are presented so that brightness of the background 9 becomes a value between a value 10% smaller than brightness of the target 8 and a value 10% larger than the brightness of the target, and so that the color of the target 8 and the color of the background 9 become a combination of colors in a relation of confusing colors in two color visions. The color of the background 9 is set to a chromatic color, for example. The color of the target 8 and the color of the background 9 are set, for example, to chromatic colors positioned on mutually opposite sides sandwiching an achromatic region on a same confusing color locus passing through an achromatic region in a chromaticity diagram. The color of the target 8 and the color of the background 9 are set, for example, to colors of same saturation.SELECTED DRAWING: Figure 1 【課題】被検者の色に関する視機能を検査するための有彩色の視標を表示する装置又は視標を提示する方法において、錐体別の視機能をより鋭敏に検査できる視標表示装置又は視標提示方法を提供する。【解決手段】被検者の色に関する視機能を検査するための有彩色の視標８とその周囲に背景９とを、背景９の輝度が視標８の輝度の１０％小さい数値と１０％大きい数値の間に属する数値となるように、かつ、視標８の色と背景９の色とが二色覚における混同色の関係にある色の組み合わせとなるように提示する。背景９の色は例えば有彩色に設定される。視標８の色と背景９の色とは、例えば、色度図における無彩色の領域を通る同一の混同色軌跡上の、無彩色の領域を挟んで互いに反対側に位置する有彩色に設定される。視標８の色と背景９の色とは、例えば、同一彩度の色に設定される。【選択図】図１