公开(公告)号：US5804267A

公开(公告)日：1998-09-08

申请号：US944898

申请日：1997-10-06

申请人： Yasuhiro Harada ,  Shinichiro Mori ,  Kayo Hasegawa ,  Junichi Kitagawa ,  Yoichiro Inoue ,  Eiichi Kai ,  Shinichi Sekine ,  Yuuzou Fukawa ,  Takashi Shirane ,  Kazuhiro Hamauji

发明人： Yasuhiro Harada ,  Shinichiro Mori ,  Kayo Hasegawa ,  Junichi Kitagawa ,  Yoichiro Inoue ,  Eiichi Kai ,  Shinichi Sekine ,  Yuuzou Fukawa ,  Takashi Shirane ,  Kazuhiro Hamauji

IPC分类号： B65D65/38 ,  C08G63/189 ,  C08G63/199 ,  C08L67/02 ,  B29D22/00 ,  B32B1/08 ,  C08F20/00

CPC分类号： C08G63/199 ,  B65D65/38 ,  C08G63/189 ,  C08L67/02 ,  Y10T428/1352 ,  Y10T428/1355 ,  Y10T428/1397 ,  Y10T428/24

摘要： 1. An ester copolymer resin having a general formula �I!. HO.paren open-st.COArCOORO.paren close-st..sub.n H �I! wherein Ar represents 2,6-naphthalene group or phenylene group, R represents ethylene group or 1,4-cyclohexylene group, and n is a number of 100 to 1000 and a polymer alloy having a solubility parameter of 10.8 to 11.9 consisting essentialy of the ester copolymer and a polycarbonate resin are provided. The ester resin and the alloy are transparent and has a heat resistance and a hot water resistance (resistance to whitening) resisting sterilization of food, a good heat sealebility to aluminum closure, and recycling ability with PET resin.

摘要翻译： 1.具有通式[I] .HO + 545 COArCOORO + 546nH [I]的酯共聚物树脂，其中Ar表示2,6-萘基或亚苯基，R表示亚乙基或1,4-亚环己基， n为数为100〜1000，聚合物的溶解度参数为10.8〜11.9的聚合物组合物，由聚酯树脂组成。 酯树脂和合金是透明的，具有抵抗食品灭菌的耐热性和耐热水性（耐白化性），铝封闭性好的热封性和PET树脂的回收能力。

公开(公告)号：US5604591A

公开(公告)日：1997-02-18

申请号：US420837

申请日：1995-04-11

申请人： Junichi Kitagawa

发明人： Junichi Kitagawa

IPC分类号： G01J9/02 ,  G01B9/02

CPC分类号： G01J9/02

摘要： A phase difference introduced by a half-tone mask including transparent portions and phase shift portions is measured by projecting two light fluxes onto these portions and forming an interference image by combining the two light fluxes. A light flux emitted by a light source is converted by a rotatable polarizer into a linearly polarized light flux having a polarizing direction which can be adjusted at will by rotating the polarizer, and then the linearly polarized light flux is transmitted through a birefringent prism to obtain two light fluxes polarized in different directions. Intensities of these light fluxes can be adjusted in opposite senses by rotating the polarized such that intensities of light fluxes emanating from the photomask become substantially identical with each other. One of the two light fluxes is made incident upon the transparent portion and the other light flux is made incident upon the phase shift portion. The two light fluxes transmitted through the photomask are combined by a birefringent prism and a phase compensating plate to obtain an interference image. By detecting an intensity of the interference image, the phase difference introduced by the photomask can be measured.

摘要翻译： 由包括透明部分和相移部分的半色调掩模引入的相位差通过将两个光束投射到这些部分上并通过组合两个光束而形成干涉图像来测量。 由光源发射的光束通过可旋转的偏振器转换成具有偏振方向的线偏振光束，该偏振方向可以通过旋转偏振器而随意调节，然后线偏振光束透射通过双折射棱镜，以获得 两个光束在不同方向上极化。 这些光通量的强度可以通过旋转极化而以相反的方式进行调节，使得从光掩模发出的光通量的强度彼此基本相同。 两个光束中的一个入射到透明部分上，另一个光束入射到相移部分上。 通过光掩模传输的两个光束通过双折射棱镜和相位补偿板组合以获得干涉图像。 通过检测干涉图像的强度，可以测量由光掩模引入的相位差。