Atago Co., Ltd.

Masanosuke Tanaka

Hideyuki Amamiya

Tomohiro Kiire

Junji Higuchi

A nondestructive measurement apparatus includes a casing including a grip portion capable of being held in hand and a measurement portion having a ring shaped abutting portion to be abutted to a measurement target such as fruit or vegetable; a light source group including a plurality of light sources arranged to be separated in a circumferential direction in an interior thereof; a ring lens arranged in a ring shape smaller than the abutting portion at an inner portion of the abutting portion, for emitting lights from the light source group to an external of the casing in a ring shape; and a light guide member having one end surface exposed to an inner side of the ring lens and another end surface positioned in the interior of the casing, for emitting lights incident from the one end surface to the external from the another end surface.

Nondestructive measurement apparatus

A device includes a sample chamber () configured to receive the object, a polarization degree measuring member () configured to measure the polarization degree of the object received in the sample chamber (), and a refractive index measuring member () configured to measure information corresponding to the refractive index of the object received in the sample chamber (). The polarization degree measuring member () includes a polarization modulation member () configured to perform polarization modulation on a light beam () for analyzing the object and allow the modulated light beam to enter the sample chamber (), an intensity detection member () configured to detect an intensity of the light beam () exiting from the sample chamber, and a polarization degree calculation member (). The refractive index measuring member () includes a position detection member () and a refractive index (concentration) calculation member ().

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Tokyo, Japan

Masanosuke Tanaka