Abstract: An optical fiber module is provided and includes an optical fiber structure, a light-absorbing area and a photoelectric sensor in a housing. The optical fiber structure collectively arranges a plurality of first optical fibers to form at least one optical fiber bundle with a tapered end, and a second optical fiber is connected to the tapered end of the optical fiber bundle to converge the optical fiber bundle to the second optical fiber. The light-absorbing area corresponds to an end of the second optical fiber, such that the light-absorbing area absorbs scattering signals escaped and scattered when signals are transmitted from the plurality of first optical fibers to the second optical fiber. The photoelectric sensor is arranged corresponding to the plurality of first optical fibers to receive target signals escaped and refracted when the signals are transmitted from the second optical fiber to the plurality of first optical fibers.

Abstract: A socket tool includes a handle, a pivot member connected with the handle, a threaded rod connecting the pivot member and the handle, and a quick release member mounted in the pivot member. The handle has a first end provided with a grip portion and a second end provided with a mounting portion. The mounting portion of the handle has an outer periphery provided with a plurality of retaining grooves and a pressing block. The pivot member has a connector provided with a channel for mounting the quick release member. Thus, the quick release member is locked in any one of the retaining grooves of the handle so that the angle between the handle and the pivot member can be adjusted freely to adjust the angle between the handle and the driving socket in a multi-stage manner.

Abstract: A drive tool device includes a drive shaft having a handle member, and having two stems secured together, the handle member is formed on one of the stems and includes a non-circular cross section and includes a density gradually increased from the one end portion toward the other end portion of the handle member, and includes a center of gravity located closer to the other end portion of the handle member. The drive shaft includes a narrowed neck portion and an inclined surface, and the handle member is formed and located between the narrowed neck portion and the inclined surface of the drive shaft and includes a relatively swelled or protruded or expanded structure.