Reflection Characteristic Measurement System

A reflection characteristic measurement system comprising:

• a hand-held reflection characteristic measurement apparatus including, on a bottom part, a light receiver that receives reflected light obtained by emitting illumination light to a measurement target;
• and
• a guide member that supports the reflection characteristic measurement apparatus in a state of covering the measurement target so as to allow the light receiver to face the measurement target,
• wherein the guide member includes:
• a plate-shaped support part having a support surface to support the reflection characteristic measurement apparatus so as to enable the reflection characteristic measurement apparatus to move;
• and
• a white calibration plate provided on the guide member and applicable to white calibration of the reflection characteristic measurement apparatus,
• the support part includes:
• an elongated hole extending in one direction along the support surface to penetrate through the support part;
• and
• a guide structure provided to guide the reflection characteristic measurement apparatus so as to enable the apparatus to move along the one direction while being supported by the supporting surface,
• the light receiver is provided on the reflection characteristic measurement apparatus so as to move along a predetermined moving path by movement of the reflection characteristic measurement apparatus guided by the guide structure,
• the moving path of the light receiver extends in the one direction including a path of the light receiver to move in the one direction while facing the elongated hole, and
• the white calibration plate is provided on the moving path in plan view of the support part such that the light receiver faces a measurement surface of the white calibration plate when the light receiver moves along a part of the moving path.