Abstract: An optical inspection device (1) that detects holes in an object to be inspected (11), comprising: a light source (41) that illuminates the object to be inspected by emitting illumination light from light-emitting points (41a) that are arranged in a linear or planar pattern; a fluorescent member (61), disposed on the opposite side from the light sources across the object to be inspected, having an incident surface (61A) on which the part of the illumination light emitted from the light source that passes through the holes in the object to be inspected falls incident, and a detection surface (61B) from which fluorescent light that is generated according to the incidence of the illumination light is emitted; and a photodetector (71) that detects fluorescent light that is emitted from the detection surface of the fluorescent member.

Abstract: A method and an apparatus for passing a warp wound around a warp beam through a warp-passing hole of a dropper, a mail of a heald, and a reed eye includes the steps of disposing the warp-passing hole and the mail in a warp conveying passage provided between a warp beam and the reed. A tip portion of the warp is subjected to a vacuum suction and drawn through the warp conveying passage toward the reed. As the warp is drawn through the warp conveying passage, the warp passes through the mail and the warp-passing hole.