PROBLEM TO BE SOLVED: To provide an optical device in which the flexibility of arrangement of a light emitting element and a light receiving element is wide and which can deal with various use with high versatility and to provide an optical connector and an electronic apparatus using it.
SOLUTION: The light emitting element 2 and the light receiving element 3 are operated in both sides of the body part 1a of a flexible board 1, and a predetermined interval is opened and carried. The sealing of the translucency is performed for the light emitting element 2 and the light receiving element 3 by the first and second molded resin parts (6a, 6b, 6c and 6d). Thereby, the direction of the position of the light emitting element 2 and the light receiving element 3 and the luminescence side of the light emitting element 2 and the light receiving surface of the light receiving element 3 can be arbitrarily set by utilizing the flexibility of the flexible board 1. The IC 4 for the communication is carried on the flexible board 1 and between the light emitting element 2 and the light receiving element 3, and the IC 4 for the communication is sealed in a third molded resin part (6e, 6f). An extension part 1b extended from the approximate center of the body part 1a of the flexible board 1 and having an external connection terminal 11 is provided at the tip side.
COPYRIGHT: (C)2006,JPO&NCIPI
PROBLEM TO BE SOLVED: To suppress the dropping of a needle thread from a sewing needle at the time of the starting of sewing.
SOLUTION: This sewing machine 10 is equipped with a rotary needle thread take up member 20 which is arranged on the upstream side of the sewing needle 101 on a thread needle pathway, and at the same time, imparts a tension which periodically changes by the same cycle as the vertical movement of the sewing needle 101 to the needle thread. The rotary needle thread take up member 20 is equipped with a base section 21 which becomes the pivot side, and an arm section 22 which makes the needle thread T reciprocate in the longitudinal direction by rotating as it remains spanned with the needle thread T. A recess section 23 in which the needle thread T drops from the needle take up upper dead point position 26 of the needle thread T is provided on the arm section 22. The rotary needle thread take up member 20 is constituted by having a needle thread position changing means 30 which moves the needle thread T to the recess section 23 before a first stitch is formed.
COPYRIGHT: (C)2005,JPO&NCIPI
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