Optical module
AssigneeFurukawa Electric Co., Ltd.
InventorsYozo ISHIKAWA, Hideyuki NASU
Life of this patent
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Abstract
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.
Claims10
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.
Dependencies are inferred from the claim text.