| 摘要 |
<p>PURPOSE:To miniaturize a device, to improve the reliability, and to simplify the assembling process. CONSTITUTION:Light emitting and receiving elements 13, 14, 15, etc., for bar code read are sealed unitedly by a light-transmissive resin 18. After the resin is molded, optical assembling and adjustment are not necessary at all to assemble a bar code reader.</p> |
