专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4798445A Plastic optical fiber and process for producing the same 失效
标题翻译：塑料光纤及其制造方法
公开(公告)号：US4798445A
公开(公告)日：1989-01-17
申请号：US847515
申请日：1986-04-03
申请人： Takashi Yamamoto , Katsuhiko Shimada , Ryuji Murata , Yasuteru Tahara , Hiromu Terada , Kenichi Sakunaga
发明人： Takashi Yamamoto , Katsuhiko Shimada , Ryuji Murata , Yasuteru Tahara , Hiromu Terada , Kenichi Sakunaga
IPC分类号： G02B6/00 , B29C47/00 , D01D5/34 , D01F8/16 , G02B1/04 , G02B6/02 , G02B6/16
CPC分类号： G02B6/02033 , B29C47/0014 , D01D5/34 , D01F8/16 , G02B1/046 , B29C47/00
摘要： A plastic optical fiber which is superior in the light transmission characteristics, particularly in those within a visible light region and also superior in heat resistance, and a process for producing the same are provided, which plastic optical fiber comprises a polycarbonate as its core material and a polymer as its cladding material having a refractive index lower than that of the core material, wherein the relationship between the light transmission loss L.sub.500 (dB/km) of the fiber as measured at a wavelength of 500 nm and that as measured at 660 nm being expressed by the following inequality:L.sub.500
摘要翻译：提供了一种塑料光纤，其光传输特性优异，特别是在可见光区域内，并且耐热性优异的塑料光纤及其制造方法，该塑料光纤包含聚碳酸酯作为芯材，作为其包层材料的聚合物，其折射率低于芯材料的折射率，其中在波长500nm测量的光纤的光传输损耗L500（dB / km）与在660nm测量的光传输损耗之间的关系由以下不等式表示：L500

2. 发明授权

US4762392A Plastic optical fibers 失效
标题翻译：塑料光纤
公开(公告)号：US4762392A
公开(公告)日：1988-08-09
申请号：US830584
申请日：1986-01-28
申请人： Takashi Yamamoto , Ryuji Murata , Yasuteru Tahara , Hiromu Terada , Kenichi Sakunaga
发明人： Takashi Yamamoto , Ryuji Murata , Yasuteru Tahara , Hiromu Terada , Kenichi Sakunaga
IPC分类号： B29C47/00 , G02B6/44 , G02B6/10 , B05D5/06 , B32B27/00 , C08F120/18
CPC分类号： G02B6/443 , G02B6/02033 , G02B6/4436 , B29C47/00 , B29C47/0014 , Y10T428/2938 , Y10T428/2962 , Y10T428/2967
摘要： There is provided a plastic optical fiber capable of exhibiting good light transmitting characteristics even at high temperatures, which comprises a core layer, a cladding layer, and a protective layer as basic consititutional units, wherein the protective layer has a heat distortion temperature [HDT] of at least 120.degree. C., a thickness of at least 10 .mu.m, and a cross-sectional area of at least 0.07 times the sum of cross-sectional areas of the core and cladding layers. There is also provided such a plastic optical fiber good in high-temperature light transmitting characteristics, which comprises a core layer, a cladding layer, and a protective layer as basic constitutional units and has a plastic coating layer having a silane-crosslinked structure provided as an outer layer thereof, wherein the protective layer has a heat distortion temperature [HDT] of at least 120.degree. C., a thickness of at least 10 .mu.m, and a cross-sectional area of at least 0.07 times the sum of cross-sectional areas of the core and cladding layers.
摘要翻译： PCT No.PCT / JP85 / 00294 Sec。 371日期1986年1月28日 102（e）日期1986年1月28日PCT提交1985年5月29日PCT公布。第WO85 / 05699号公报日期为1985年12月19日。提供了即使在高温下也能表现出良好的透光特性的塑料光纤，其包括芯层，包覆层和作为基本单位的保护层，其中保护层具有至少120℃的热变形温度[HDT]，至少10μm的厚度，以及至少为芯和包层的横截面面积的总和的0.07倍的横截面积。还提供了这样一种具有高温透光特性的塑料光纤，其特征在于，包括芯层，包覆层和保护层作为基本结构单元，并且具有硅烷交联结构的塑料涂层，其设置为其外层，其中所述保护层的热变形温度[HDT]为至少120℃，厚度为至少10μm，横截面积为交联总和的至少0.07倍，芯层和包层的截面积。

3. 发明授权

US4732716A Process for preparation of multifilament optical fibers 失效
标题翻译：复丝光纤的制备工艺
公开(公告)号：US4732716A
公开(公告)日：1988-03-22
申请号：US879942
申请日：1986-06-30
申请人： Kenichi Sakunaga , Hiroshi Terada , Takashi Yamamoto , Yasuteru Tahara
发明人： Kenichi Sakunaga , Hiroshi Terada , Takashi Yamamoto , Yasuteru Tahara
IPC分类号： C03B37/083 , C03B37/08 , D01D5/36 , D01F8/04 , G02B6/04 , G02B6/06 , G02B6/44 , B29D11/00 , G02B6/00
CPC分类号： D01D5/36 , D01F8/04 , G02B6/06 , G02B6/448
摘要： A process for the preparation of a multifilament optical fiber having 1,000 to 10,000 islands as optical filaments, which comprises using a composite spinning spinneret for the preparation of an islands-in-a-sea type multifilament fiber, which comprises at least three piled orifice plates including an orifice plate having many island-forming nozzle holes, an orifice plate having a sea-forming nozzle hole and an orifice plate having a filament-gathering nozzle hole, the nozzle hole of the orifice plate arranged just above the lowermost orifice plate having a trumpet-shaped opening extending toward the lower end face thereof and a sea component flow passage being formed between two orifice plates arranged just above the lowermost orifice plate, and supplying a thermoplastic polymer for forming cores of optical filaments from the island-forming nozzle holes and a sea-forming thermoplastic polymer from the sea-forming nozzle hole to effect composite spinning and gathering many filaments in the gathering nozzle hole.
摘要翻译：一种制备具有1000至10,000个岛状光纤的复丝光纤的方法，其包括使用复合纺丝喷丝头制备海岛型复丝纤维，其包括至少三个堆积的孔板包括具有许多岛形喷嘴孔的孔板，具有海成形喷嘴孔的孔板和具有丝聚集喷嘴孔的孔板，所述孔板的喷嘴孔布置在最下面的孔板的正上方，喇叭形开口朝向其下端面延伸，海流部分流路形成在布置在最下面的孔板正上方的两个孔板之间，并从岛成形喷嘴孔供给用于形成光纤芯的热塑性聚合物，海成形热塑性聚合物从海成形喷嘴孔到复合纺丝和收集许多细丝聚集喷嘴孔。

4. 发明授权

US4872740A Endoscope 失效
标题翻译：内窥镜
公开(公告)号：US4872740A
公开(公告)日：1989-10-10
申请号：US152492
申请日：1988-02-05
申请人： Hiromu Terada , Naoyuki Fukahori , Kenichi Sakunaga
发明人： Hiromu Terada , Naoyuki Fukahori , Kenichi Sakunaga
IPC分类号： A61B1/00 , G02B23/26
CPC分类号： G02B23/26 , A61B1/00165
摘要： An endoscope comprising as an image-transmitting member a multifilament type plastic optical fiber, an object lens arranged on one end of the optical fiber and a device for guiding an image of an object transmitted to the other end of the optical fiber to an image-receiving portion, wherein the multifilament type plastic optical fiber has an islands-in-sea structure in which 50 to 10,000 light-transmitting core-sheath structure islands having a diameter of 5 to 200 .mu. are arranged in the sea so that the same positional relationship of the islands is maintained on both ends of the optical fiber, and the core occupancy ratio in the total cross-section of the optical fiber is at least 50%.

5. 发明授权

US4812012A Optical fiber array having fiber islands in a polymer sea 失效
标题翻译：在聚合物海中具有纤维岛的光纤阵列
公开(公告)号：US4812012A
公开(公告)日：1989-03-14
申请号：US127415
申请日：1987-12-02
申请人： Hiromu Terada , Kenichi Sakunaga , Naoyuki Fukahori
发明人： Hiromu Terada , Kenichi Sakunaga , Naoyuki Fukahori
IPC分类号： G02B6/06
CPC分类号： G02B6/06
摘要： An optical fiber array comprising a great number of multifilament type plastic optical fibers having a substantially rectangular peripheral sectional shape and including 10 to 10000 light-transmitting islands having a diameter of 5 to 200 .mu.m, which are densely arranged in the sea, wherein one ends of the multifilament type plastic optical fibers are arranged in one line or a plurality of lines and the other ends thereof are integrated in a substantially rectangular or substantially circular shape.

6. 发明授权

US4842365A Multifilament type plastic optical fiber and process for preparation thereof 失效
标题翻译：多丝型塑料光纤及其制备方法
公开(公告)号：US4842365A
公开(公告)日：1989-06-27
申请号：US61346
申请日：1987-06-15
申请人： Hiromu Terada , Kenichi Sakunaga , Naoyuki Fukahori
发明人： Hiromu Terada , Kenichi Sakunaga , Naoyuki Fukahori
IPC分类号： B29D11/00 , D01D5/36 , D01F8/04 , G02B6/06
CPC分类号： D01F8/04 , B29D11/00663 , D01D5/36 , G02B6/06
摘要： A multifilament type plastic optical fiber having a substantially rectangular cross-section and an islands-in-the-sea structure in which 100 to 10,000 islands are arranged in the sea, wherein the respective islands have a substantially circular cross-section and a core-sheath structure, the islands are arranged in a sigzag-stacked structure, the core occupancy ratio in the multifilament type optical fiber cores section is at least 50% and the brightness index value I which is defined by the following (1), is at least 4.5.times.10.sup.-2 :I=S.multidot.NA.sup.2 .multidot.10.sup.-(.alpha.L/10) (1)wherein S stands for the core occupancy ratio in the multifilament type optical fiber, .alpha. stands for the transmission loss (db/m) per meter of the multifilament type optical fiber, NA stands for the numeral apertures, and L stands for the length (m) of the used optical fiber.

7. 发明授权

US5039457A Multifilament type plastic optical fiber and process for preparation thereof 失效
标题翻译：多丝型塑料光纤及其制备方法
公开(公告)号：US5039457A
公开(公告)日：1991-08-13
申请号：US320505
申请日：1989-03-08
申请人： Hiromu Terada , Kenichi Sakunaga , Naoyuki Fukahori
发明人： Hiromu Terada , Kenichi Sakunaga , Naoyuki Fukahori
IPC分类号： B29D11/00 , D01D5/36 , D01F8/04 , G02B6/06
CPC分类号： D01F8/04 , B29D11/00663 , D01D5/36 , G02B6/06
摘要： A multifilament type plastic optical fiber having a substantially rectangular cross-section and an islands-in-the-sea structure in which 100 to 10,000 islands are arranged in the sea, wherein the respective islands have a substantially circular cross-section and a core-sheath structure, the islands are arranged in a zigzag-stacked structure, the core occupaney ratio in the multifilament type optical fiber cores section is at least 50% and the brightness index value I which is defined by the following (1), is at least 4.5.times.10.sup.-2 : ##EQU1## wherein S stands for the core occupancy ratio in the multifilament type optical fiber, .alpha. stands for the transmission loss (dB/m) per meter of the multifilament type optical fiber, NA stands for the numeral apertures, and L stands for the length (m) of the used optical fiber.

8. 发明授权

US4768857A Multifilament type plastic optical fiber 失效
标题翻译：多丝型塑料光纤
公开(公告)号：US4768857A
公开(公告)日：1988-09-06
申请号：US99766
申请日：1987-09-22
申请人： Kenichi Sakunaga , Hiromu Terada , Yoshiro Nieda , Naoyuki Fukahori
发明人： Kenichi Sakunaga , Hiromu Terada , Yoshiro Nieda , Naoyuki Fukahori
IPC分类号： B29D11/00 , D01D5/36 , D01F8/04 , G02B6/06 , G02B6/04
CPC分类号： D01F8/04 , B29D11/00663 , D01D5/36 , G02B6/06
摘要： A multifilament type plastic optical fiber having a substantially uniform cross-section and an islands-in-sea structure, in which 10 to 10,000 islands are arranged in the sea, the respective islands have a substantially uniform cross-section having a diameter of 10 to 200.mu. and the sea occupancy ratio in the cross-section of the optical fiber is 5 to 40%, said optical fiber being prepared by constructing a true conjugate spinning spinneret by (a) an orifice plate having 10 to 10,000 core-forming holes, (b) an orifice plate having 10 to 10,000 sheath-forming holes and (c) an orifice plate having 10 to 10,000 sea-forming holes having an opening expanded downward, the lower ends of every two adjacent sea-forming holes having contacted with each other on the lower end face of said orifice plate, so that a fiber comprising the sea and islands having a core-sheath structure is formed by true conjugate spinning without using a filament-gathering orifice plate, supplying a core-forming polymer, a sheath-forming polymer and a sea-forming polymer to respective spinning holes, melt-spinning the polymers under such conditions that the spinning draft D defined by the following formula [I]:D=(hole diameter of core-forming orifice plate).sup.2 /(corediameter of multifilament optical fiber).sup.2 . . . [I] is 20 to 50,000, fusion-bonding the spun filaments on the lower end face of the spinneret, and taking up the formed fiber.
摘要翻译：一种具有基本均匀的横截面和海岛结构的复丝型塑料光纤，其中在海中布置有10至10,000个岛，各个岛具有基本上均匀的横截面，其直径为10至 200微米，光纤横截面的占有率为5〜40％，所述光纤通过（a）具有10〜10000个芯形成孔的孔板构成真正的共轭纺丝喷丝头，（b）具有10至10,000个鞘形成孔的孔板和（c）具有10至10,000个海孔形成孔的孔板，其具有向下扩展的开口，每两个相邻海成孔的下端与每个另一方面在所述孔板的下端面上，使得通过真正的共轭纺丝形成包含海岛和具有芯鞘结构的岛的纤维，而不使用丝聚集孔板，提供芯形聚合物 r，成鞘聚合物和形成海藻的聚合物分散到相应的纺丝孔中，在由下式[I]定义的纺丝线D的条件下熔融纺丝聚合物：D =（芯形成孔的孔直径板）2 /（复丝光纤的纤芯直径）2。。。 [I]为20〜50,000，在喷丝头的下端面上熔融纺丝，并卷取成形纤维。

9. 发明授权

US4547040A Optical fiber assembly and process for preparing same 失效
标题翻译：光纤组装及其制备方法
公开(公告)号：US4547040A
公开(公告)日：1985-10-15
申请号：US506411
申请日：1983-06-21
申请人： Takashi Yamamoto , Kenichi Sakunaga
发明人： Takashi Yamamoto , Kenichi Sakunaga
IPC分类号： B29C47/00 , B29D11/00 , G02B6/06 , G02B6/44 , D02G3/00
CPC分类号： G02B6/06 , B29C47/0016 , B29C47/0028 , B29D11/00663 , G02B6/02033 , G02B6/4403 , B29C47/00
摘要： An optical fiber assembly comprising at least two plastic optical fibers and an embedding material, said plastic optical fibers being arranged substantially in parallel to each other and embedded in said embedding material, wherein each plastic optical fiber comprises a core of polymer having a refractive index, n.sub.1, and a cladding of a polymer having a refractive index, n.sub.2, wherein the refractive indices n.sub.1 and n.sub.2 satisfy the following relationship [I]n.sub.1 -n.sub.2 >0.01 [I]The optical fiber assembly is prepared by extruding from a spinneret a plurality of optical fibers having a core-cladding structure and an embedding material of a polymer in three layers of core, cladding and embedding material, according to a melt-spinning method; arranging the optical fibers in parallel to each other before solidification thereof; and bonding the optical fibers together through the embedding material.
摘要翻译：一种包括至少两个塑料光纤和嵌入材料的光纤组件，所述塑料光纤基本上彼此平行地布置并嵌入在所述嵌入材料中，其中每个塑料光纤包括具有折射率的聚合物芯， n1和具有折射率n2的聚合物的包层，其中折射率n1和n2满足以下关系式[I] n1-n2> 0.01 [I]光纤组件通过从喷丝头挤出多个根据熔融纺丝法，将具有芯包层结构的光纤和聚合物的包埋材料分成三层芯，包层和包埋材料; 在凝固之前彼此平行地布置光纤; 并通过嵌入材料将光纤粘合在一起。

10. 发明授权

US5058989A Transmission type screen and method of manufacturing the same 失效
标题翻译：传输类型屏幕及其制造方法
公开(公告)号：US5058989A
公开(公告)日：1991-10-22
申请号：US676789
申请日：1991-03-28
申请人： Kenichi Sakunaga , Mizuo Okada
发明人： Kenichi Sakunaga , Mizuo Okada
IPC分类号： G03B21/62
CPC分类号： G03B21/625
摘要： A transmission type screen having a screen body constituted by at least one plastic sheet formed of a multiplicity of transparent plastic strands arranged in the shape of a sheet, each the strands being welded together at outer surfaces thereof. Each of the transparent strand may have a main portion and another portion different from the main portion in terms of optical effects. This transmission type screen is manfactured by spinning off the transparent strands from a spinning nozzle while aligning the strands; welding each adjacent over of the strands to form a sheet; and forming a screen body from at least one sheet obtained in this manner.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式