| 摘要 |
PROBLEM TO BE SOLVED: To dispense with chip jumper connection when a plurality of devices are mounted on a printed board by serial connection either with a wide pitch or narrow pitch. SOLUTION: Multiple devices 11 of a light receiving IC are arrayed for a light receiver installed opposed to a projector in which multiple light-emitting elements are arrayed. A plurality of devices 11 are mounted on a printed board 12 by serial connection either with a narrow pitch shown in Fig. 1 (A) or with a wide pitch shown in Fig. 1 (B). The printed board 12 is provided with a first print pattern 13 used for inter-device connection at wide-pitch mounting, and a second print pattern 14 used for inter-device connection at narrow-pitch mounting. According to the mounting pitch of the device 11, either the print pattern 13 or the print pattern 14 is connected to the device 11 by a bonding wire 15.
|
