| 摘要 |
An optical module comprises a plastic package constituted by a package main body and a cover, sleeves formed integrally with the package main body, a circuit board held in the package main body, light-activated elements fixed at predetermined positions of the circuit board, three projections formed integrally with an inner surface of the package main body and brought into contact with a periphery of the circuit board to position the circuit board, springs formed integrally with an inner surface of the package to press the periphery of the circuit board against the projections. Since the sleeve and the package main body are integrally formed by plastic molding, the number of components is reduced, thereby simplifying the assembling steps. |
