Nippon Steel Corporation

Bridgestone Sports Co., Ltd.

Shinichi Oshima

Yoshito Isei

Takanori Tanaka

Tatsuro Honda

Takenori Kuramoto

Kenshiro Oie

The present invention provides a measuring apparatus and a measuring method in which a relative moving velocity of a target to be measured or a separation displacement of the target to be measured can be accurately measured even in a case where the target to be measured is moved. In a measuring apparatus, a relative moving velocity of a target to be measured and a separation displacement of the target to be measured can be measured in consideration of the influence of Doppler shift that occurs due to the movement of the target to be measured in an in-plane direction, and thus, even in a case where the target to be measured is moved in the in-plane direction, the relative moving velocity of the target to be measured and the separation displacement of the target to be measured can be accurately measured.

Measuring device and measuring method

A thread shape measuring apparatus includes: a first illuminating unit that has an optical axis orthogonal to a cross section including a thread axis, and illuminates the thread portion; a second illuminating unit that has an optical axis that forms an angle &#x3b8; larger than a lead angle &#x3b3; of the thread portion with respect to the direction orthogonal to the cross section and illuminates the thread portion; an image-capturing unit that has a visual axis parallel to the optical axis of the first illuminating unit, includes a telecentric lens, has a focusing position matching the cross section, and detects, out of the light emitted from the first illuminating unit or the second illuminating unit, light that has not been blocked by the thread portion to capture an image of the detected light; and an operation unit that calculates a shape of the thread portion based on the captured image.

Thread shape measuring apparatus and measuring method

On a golf ball--containing package, a rectangular indication section (4) is defined for indicating the performance of a golf ball. The section (4) is divided into rows of longitudinally arranged sub-sections (7). Marks (8) are formed on selected ones of the sub-sections (7) for indicating a golf ball structure, recommended head speed, feel, spin, green targeting, and trajectory.

Growing community of inventors

Tokyo, Japan

Shinichi Oshima