| 摘要 |
A photointerrupter is provided which comprises a resinous hollow holder case including an opposed pair of housing portions separated by an intermediate wall portion for accommodating a light emitting element and a light receiving element, respectively. The photointerrupter further comprises a resinous presser member having an intermediate bonding portion heat-bonded to the intermediate wall portion of the holder case. The presser member has a pair of end support portions held in supporting contact with the light emitting element and the light receiving element, respectively.
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