Abstract: A relay circuit board includes: a plurality of first pads arranged in parallel in a first direction; a plurality of second pads arranged in parallel in a second direction; and wirings connecting the plurality of first pads and the plurality of second pads, respectively. The second direction is inclined at a predetermined angle with respect to the first direction, and the predetermined angle is greater than 0 degree and smaller than 90 degrees.

Abstract: A wire and mold-member assembly (11, 12, 13) includes a plurality of differential transmission wires (20a to 20f) and a mold member (160, 260) situated at an end of the plurality of differential transmission wires and configured to bundle the plurality of differential transmission wires together. The mold member has a first face (160A, 260A) and a second face (160B, 260B) each intersecting with the plurality of differential transmission wires, and the second face is inclined at an angle greater than 0 degrees and less than 90 degrees relative to the first face.

Abstract: A wire and mold-member assembly (11, 12, 13) includes a plurality of differential transmission wires (20a to 20f) and a mold member (160, 260) situated at an end of the plurality of differential transmission wires and configured to bundle the plurality of differential transmission wires together. The mold member has a first face (160A, 260A) and a second face (160B, 260B) each intersecting with the plurality of differential transmission wires, and the second face is inclined at an angle greater than 0 degrees and less than 90 degrees relative to the first face.

Abstract: A relay circuit board includes: a plurality of first pads arranged in parallel in a first direction; a plurality of second pads arranged in parallel in a second direction; and wirings connecting the plurality of first pads and the plurality of second pads, respectively. The second direction is inclined at a predetermined angle with respect to the first direction, and the predetermined angle is greater than 0 degree and smaller than 90 degrees.

Abstract: A lens component of the present invention has an identification mark that can be formed without impairing the lens surface profile. The lens component includes: at least one set of lenses including, an element-side lens provided facing to a light emitting and receiving element; and a fiber-side lens provided facing to a transmitting and receiving optical fiber; an element-side lens forming surface formed on the element-side lens; and an identification mark provided on the element-side lens forming surface. The element-side lens and the identification mark are separated from each other by a distance that is at least the radius of the element-side lens.

Abstract: A lens component has a element-side lens portion 65 which is provided so as to face a light emitting and receiving element 52 mounted on a circuit substrate 24, a positioning portion 75 that protrudes such that the element-side lens portion 65 is separated from the circuit substrate 24 by a predetermined distance, and an adhesion portion 76 that forms an adhesive-agent filling space S, which is filled with an adhesive agent 77, between the circuit substrate 24 and the adhesion portion 26, in a state where the positioning portion 75 contacts with the circuit substrate 24 and the element-side lens portion 65 is fixed so as to face the light emitting and receiving element 52.

Abstract: A lens component has a element-side lens portion 65 which is provided so as to face a light emitting and receiving element 52 mounted on a circuit substrate 24, a positioning portion 75 that protrudes such that the element-side lens portion 65 is separated from the circuit substrate 24 by a predetermined distance, and an adhesion portion 76 that forms an adhesive-agent filling space S, which is filled with an adhesive agent 77, between the circuit substrate 24 and the adhesion portion 26, in a state where the positioning portion 75 contacts with the circuit substrate 24 and the element-side lens portion 65 is fixed so as to face the light emitting and receiving element 52.

Abstract: A lens component of the present invention has an identification mark that can be formed without impairing the lens surface profile. The lens component includes: at least one set of lenses including, an element-side lens provided facing to a light emitting and receiving element; and a fiber-side lens provided facing to a transmitting and receiving optical fiber; an element-side lens forming surface formed on the element-side lens; and an identification mark provided on the element-side lens forming surface. The element-side lens and the identification mark are separated from each other by a distance that is at least the radius of the element-side lens.

Abstract: An optical connecting member includes a board chip, an optical element mounted on the board chip, and a lens member including a lens part optically connected to the optical element. An accommodating space for accommodating the optical element is formed between the lens member and the board chip. The accommodating space communicates with the outside only through a very small communicating part.