| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem wherein a person having a difficulty in color vision hesitates to use correction spectacles for the person having the difficulty in color vision because the correction spectacles can be easily discriminated as special spectacles at a glance since deep coloring agent and a special reflecting film are used for the spectacles. SOLUTION: This filter for driving car for the person having the difficulty in color vision is located on an upper side of a driver's seat of the car, is movably mounted on a sun visor for shielding direct sunlight, and has a prescribed color vision correction spectrum to correct a color vision abnormality of the person having the difficulty in color vision. COPYRIGHT: (C)2004,JPO
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