| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thin optical coupler which can be practicallly produced stably. SOLUTION: This optical coupler is made thin enabling practically stable production by providing a resin plate 1 which is trapezoidal when viewed from above as an insulating member continuously on the flank of a rectangular flat plate type tip part of a photodetecting-element side lead frame 3 which faces a light-emitting-element side lead frame and a gap 8 between the resin plate 1 and light-emitting-element lead frame 2 and preventing a potting part 6 from projecting.</p> |
