摘要:
An optical fiber cable comprises optical fiber tapes, each of which is composed of a plurality of optical fiber cores disposed in parallel and connected by a joint member, and two or more pieces of the optical fiber tapes are layered and accommodated in a sheath. The optical fiber tape is provided with a concave portion between adjacent optical fiber cores and a convex portion, and the two or more pieces of the optical fiber tapes are layered by engaging the concave portion and convex portion to be accommodated in the sheath.
摘要:
An optical fiber tape unit comprising an optical fiber core having an outer diameter of 0.4 mm or more consisting of an optical fiber strand composed of an optical fiber, a primary coating layer and a secondary coating layer, and an overcoat layer formed around the outer circumference of the optical fiber strand, and a member for coupling a plurality of optical fiber cores arranged in parallel. Assuming that the overcoat layer has a Young's modulus E1, a cross-sectional area A1, a tensile strength TS1 and a tensile elongation TE1 and the coupling member has a Young's modulus E2, a cross-sectional area A2, a tensile strength TS2 and a tensile elongation TE2, following relations are satisfied: following relations are satisfied: E1·A1≧E2·A2, TS1≧TS2, TE1≧TE2, E1≧100 (MPa), 20≦E2≦300 (MPa), TS1≧10 (MPa), TS2≦40 (MPa), TE1≧30(%), and TE2≦40(%).
摘要:
An optical fiber cable in which an optical fiber tape unit can be taken out easily from a sheath is disclosed. An optical fiber cable having a substantially rectangular cross section has one or more optical fiber tape units, a sheath for accommodating the optical fiber tape units, the sheath being of a substantially rectangular cross section, a first pair of notches formed at long sides of the cross section of the sheath, a first line connecting the first pair of notches being across the optical fiber tape units, and second and third pairs of notches formed at the long sides and above and below the first pair of notches, second and third lines connecting the second and third pairs of notches not being across the optical fiber tape units.
摘要:
A boot for an MT connector used for installing a multicore optical fiber tape unit into the MT connector. The boot has a taper part that converts an array pitch in a plurality of optical fiber cores bundled in the optical fiber tape unit.
摘要:
An optical fiber tape unit comprising an optical fiber core having an outer diameter of 0.4 mm or more consisting of an optical fiber strand composed of an optical fiber, a primary coating layer and a secondary coating layer, and an overcoat layer formed around the outer circumference of the optical fiber strand, and a member for coupling a plurality of optical fiber cores arranged in parallel. Assuming that the overcoat layer has a Young's modulus E1 and a cross-sectional area A1 and the coupling member has a Young's modulus E2 and a cross-sectional area A2, following relations are satisfied: E1≦E2 and E1 A1≧E2 A2.
摘要翻译:一种光纤带单元,包括由光纤,初级涂层和第二涂层组成的光纤线组成的外径为0.4mm以上的光纤芯,以及外周层 的光纤束,以及用于联接并列布置的多个光纤芯的部件。 假设外涂层具有杨氏模量E 1和横截面积A 1,并且联接构件具有杨氏模量E 2和横截面积A 2,满足以下关系:E 1 <= E 2和 E 1 A 1> = E 2 A 2。
摘要:
A core detaching tool for an optical fiber cable detaches one or more optical fiber tape units accommodated in a sheath of the optical fiber cable by tearing the sheath. The core detaching tool for an optical fiber cable is provided with a pair of cable holding parts, and a moving mechanism for moving the cable holding parts. A pair of projected parts are formed inside the cable holding parts, and a distance between the projected parts is greater than a long side face of a cross section of the optical fiber tape unit. The optical fiber tape unit can be separated and detached from the sheath in intermediate post-branching of the optical fiber cable without increasing a transmission loss.
摘要:
A local air cleaning apparatus (1) is provided with a push hood (2) having an air flow opening face (23) for blowing out a cleaned uniform air flow and a guide (3) provided on a side of the push hood (2) having the air flow opening face (23), the guide (3) extending from the side thereof having the air flow opening face (23) toward a downstream side of the uniform air flow to form an opening face (31) at a downstream end portion thereof. The push hood (2) is arranged such that the uniform air flow blown out from the air flow opening face (23) passes through the inside of the guide (3) and then collides with an air collision face (W) on a downstream side of the opening face (31). The opening face (31) of the guide (3) is spaced apart from and opposed to the air collision face (W) to form an open region between the opening face (3) and the air collision face (W). The cleaned uniform air flow blown out from the air flow opening face (23) collides with the air collision face (W) and flows out of the opening region, thereby allowing the inside of the guide (3) and the inside of the open region to have higher cleanliness than other regions.
摘要:
Disclosed is an exhaust gas purification catalyst carrier which includes a phosphate salt represented by formula: MPO4 (wherein M represents Y, La, or Al) or a zirconium phosphate represented by formula ZrP2O7; an exhaust gas purification catalyst containing a noble metal at least containing Rh and supported on the carrier; and an exhaust gas purification catalyst product having a catalyst support made of a ceramic or metallic material, and a layer of the exhaust gas purification catalyst, the layer being supported on the catalyst support.
摘要:
According to one embodiment, the luminescent material shows a luminescence peak in a wavelength range of 570 to 670 nm when excited with light having an emission peak in a wavelength range of 250 to 520 nm. The luminescent material includes a host material having a crystal structure substantially same as the crystal structure of Sr2Si7Al3ON13. The host material is activated by Eu, and includes Sr and Ca to satisfy a relationship of 0.008≦MCa/(MSr+MCa)≦0.114, where MCa is a number of moles of Ca and MSr is a number of moles of Sr.
摘要翻译:根据一个实施方案,发光材料在具有在250至520nm的波长范围内的发光峰的光激发时,显示在570至670nm的波长范围内的发光峰。 发光材料包括具有与Sr 2 Si 7 Al 3 ON 13的晶体结构基本相同的晶体结构的主体材料。 主体材料由Eu活化,包括Sr和Ca,以满足0.008&nlE的关系; MCa /(MSr + MCa)&nlE; 0.114,其中MCa是Ca的摩尔数,MSr是Sr的摩尔数 。
摘要:
According to one embodiment, a light emitting device includes a base substrate, first and second substrates, first and second semiconductor light emitting elements. The first and second substrates are provided on a major surface of the base substrate and include first and second reflection regions, respectively. The first and second semiconductor light emitting elements include first and second structural bodies including first and second light emitting layers, respectively. Each of the first and second semiconductor light emitting elements is inputted with a power not less than 1 Watt. An area of a face of the first semiconductor light emitting element is S1, and a gap between the first light emitting layer and the first substrate is t1. An area R1 of the first reflection region satisfies a relationship (S1+100t12)≦R1≦(S1+10000t12). A gap L between the first and the second semiconductor light emitting elements satisfies the relationships 100t1≦L≦10000t1.