POSITION MEASUREMENT APPARATUS

摘要

A position measurement apparatus includes a measurement head, a controller and a light transmission section. The measurement head includes a light projecting lens and a light receiving lens. The controller includes a light emitting section, a light emission circuit controlling the light emitting section, a light receiving section, and a pixel data processing circuit detecting a position of light received in the light receiving section, and outputting positional information to a calculation section calculating a position of an object to be measured. The light transmission section includes an optical fiber transmitting light from the light emitting section to the light projecting lens, and an image fiber with incidence and emission end faces, in which end faces of plural cores are two-dimensionally arrayed in the incidence end face and the emission end face, the image fiber transmitting light converged by the light receiving lens to the light receiving section.

主权项

1. A position measurement apparatus comprising:
a measurement head; a controller provided being apart from the measurement head; and a light transmission section provided between the measurement head and the controller, wherein the measurement head includes: a light projecting lens that causes light toward an object to be measured to be converged; and a light receiving lens that causes light from the object to be measured toward the measurement head to be converged, the controller includes: a light emitting section; a light emission circuit that controls the light emitting section; a light receiving section; and a pixel data processing circuit that detects a position of light received in the light receiving section, and outputs positional information to a calculation section that calculates the position of the object to be measured, and the light transmission section includes: an optical fiber that transmits light emitted from the light emitting section to the light projecting lens; and an image fiber with an incidence end face and an emission end face, in which end faces of a plurality of cores are two-dimensionally arrayed in the incidence end face and the emission end face, the image fiber that transmits light converged by the light receiving lens to the light receiving section.