Optical module

摘要

A prism/lens array (25) in the present invention is a grass prism having an approximately 45 degrees tapered part. A plurality of lenses (31) are provided side by side on the front surface of the prism/lens array (25). A pair of protrusions (33) are formed on both sides of lenses (31) on the surface on which the lenses (31) are provided. The protrusions (33) are formed in the top-bottom direction of the prism/lens array (25) and roughly V-shaped cross sections. Grooves (35) are provided in an inside surface of a prism-securing part (19), in areas corresponding to the protrusions (33). The grooves (35) are shaped such that the protrusions (33) can fit into the grooves; for example, the grooves could have roughly V-shaped cross sections.

主权项

1. An optical module, comprising:
a circuit board mounting an optical element array thereon; a resin molded body disposed on the circuit board; and a prism/lens array having lenses lined in its width direction, which can reflect light and is glass-made, wherein the resin molded body has a prism-securing part which is provided on a part corresponding to the optical element array and can fix the prism/lens array therein, an opening part provided in the prism-securing part and formed toward an optical connector connected thereto, and a guiding part which conducts positioning of the optical connector, a fitting structure for positioning the prism/lens array in its width direction is formed on a contact surface of the prism/lens array and the prism-securing part, and a front-back direction and a height direction of the prism/lens array is positioned by a contact of the prism/lens array and the prism-securing part, the fitting structure comprising a first fitting part formed integrally in a surface of the prism/lens array in a direction perpendicular to the lined direction of the lenses, and a second fitting part formed in a portion of prism-securing part corresponding to the first fitting part, and the second fitting part is configured to fit together with the first fitting part.