| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of making the visual recognition of a colorimetry object easy in a portable colorimetric system.SOLUTION: The portable colorimetric system includes a colorimetric device and a mask member. At this time, the colorimetric device includes a first window part, a light source part irradiating an object with light through the first window part, and a sensor part receiving the light from the object through the first window part. Further, the mask member can be attached to and detached from the colorimetric device and includes a second window part optically communicating with the first window part in an attachment state where the mask member is attached to the colorimetric device. In a plan view of the mask member in a direction along the normal of the second window part, the first width of the mask member in a first direction is shorter than the second width of the mask member in a second direction crossing the first direction. |
