Abstract: The present invention provides a laser module that can maintain weldability of a lens holder and improve machinability, and it protects a burr from being induced, and thereby improves optical accuracy, improves a reading accuracy of a bar code, improves mass productivity and reduces a manufacturing cost. In a laser module for a bar code reader, which has a packaged structure including a light emitting element and a light projection lens, for collecting a beam emitted from the light emitting element through the light projection lens and irradiating to an irradiation target, it includes: a cylindrical housing, in which the light emitting element is engaged with one end side; and a cylindrical lens holder, which is engaged with the other end side of the housing, for holding therein the light projection lens.

Abstract: The present invention provides a laser module that can maintain weldability of a lens holder and improve machinability, and it protects a burr from being induced, and thereby improves optical accuracy, improves a reading accuracy of a bar code, improves mass productivity and reduces a manufacturing cost. In a laser module for a bar code reader, which has a packaged structure including a light emitting element and a light projection lens, for collecting a beam emitted from the light emitting element through the light projection lens and irradiating to an irradiation target, it includes: a cylindrical housing, in which the light emitting element is engaged with one end side; and a cylindrical lens holder, which is engaged with the other end side of the housing, for holding therein the light projection lens.

Abstract: Disclosed is a movable mirror driving mechanism for bar code reader capable of optimizing the coil as a whole as compared to a conventional single coil commonly used for driving and electromotive force detection purposes. The movable mirror driving mechanism for bar code reader is a type in which the laser beam emitted from the light emitting element is reflected by the movable mirror, the movable mirror is oscillated to make the laser beam scan across the object to be scanned and ight returned from the object to be scanned is reflected off the movable mirror to be received by the light receiving element. The movable mirror driving mechanism for bar code reader comprises the movable mirror supported to oscillated about the pivot, the magnetic member firmly attached to the movable mirror and the coil interlinking with magnetic flux of the magnetic member.