公开(公告)号：JPH09150478A

公开(公告)日：1997-06-10

申请号：JP31072895

申请日：1995-11-29

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KAWAMOTO SATOSHI ,  FUKUDA SHIN ,  GOTOU YUMI ,  FUKUDA NOBUHIRO

IPC: B32B15/08 ,  B32B27/00

Abstract: PROBLEM TO BE SOLVED: To maintain a specific reflectance even though a reflecting body is allowed to stand continuously under high temperature environment by improving stability in the high temperature environment by a method wherein a side to a polymeric film composed of at least a transparent polymeric film and a silver thin film layer is made a reflecting surface. SOLUTION: A reflecting body is composed of at least one metal layer 20 selected from titanium, tungsten, or copper on a transparent polymeric film 10, and a silver thin film layer 30 on the metal layer 20. The metal layer 20 is between the transparent polymeric film 10 and the silver thin film layer 30. Such the reflecting body can improve stability of the silver thin film under the high temperature environment. Thereby, even after the reflecting body is heated in the air at 150 deg.C temperature for 500h, a reflectance of at least 90% can be obtained.

公开(公告)号：JPH0961295A

公开(公告)日：1997-03-07

申请号：JP21355595

申请日：1995-08-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KAWAMOTO SATOSHI ,  FUKUDA SHIN ,  FUKUDA NOBUHIRO

IPC: G01M11/00

Abstract: PROBLEM TO BE SOLVED: To reproduce light degradation occurring in back light unit lighting test of a silver reflector in a short time by radiating visible light obtained from pseudo solar light with ultraviolet rays removed to a reflector to be tested. SOLUTION: Light from a visible light source 10 for generating light in a visible range of wavelength of 380 to 780nm is passed through an ultraviolet ray removing filter 20 for removing ultraviolet light substantially having a wavelength of 360nm or less to remove ultraviolet rays, and light with radiated light intensity preferably of 100mW/cm -700mW/cm is radiated to a reflector 30 using silver. At this time the reflector 30 is heated by a temperature adjusting stage 30 to a predetermined temperature of 60 deg.C-150 deg.C for example and kept at this temperature. Thus light degradation caused in a lamp reflector for a back light unit of a liquid crystal display device can be reproduced in an extremely short time, so that light degradation of the reflector 30 can to efficiently studied.

公开(公告)号：JPH07227931A

公开(公告)日：1995-08-29

申请号：JP2081294

申请日：1994-02-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAZAKI FUMIHARU ,  KAWAMOTO SATOSHI ,  FUKUDA SHIN ,  FUKUDA NOBUHIRO

IPC: G03B15/02 ,  B32B7/02 ,  B32B15/08 ,  G02B5/08

Abstract: PURPOSE:To provide a silver reflective plate, which can favorably be used as the reflecting body of a stroboscope for photographing, and a reflector, in which the silver reflective plates are employed. CONSTITUTION:Reflective plate is produced by laminating a transparent polymer film 01, a thin silver film layer 02, a bonding layer 03 and a plate-like molded body 04 in the order named under the condition that the dielectric loss tangent to the high frequency of 100kHz-10MHz of the transparent polymer film 01 is 0.0025 or less.

公开(公告)号：JPH09281124A

公开(公告)日：1997-10-31

申请号：JP9118196

申请日：1996-04-12

Applicant: MITSUI TOATSU CHEMICALS

Inventor： FUKUDA SHIN ,  KAWAMOTO SATOSHI ,  YAMAMOTO SADAAKI ,  FUKUDA NOBUHIRO

IPC: G01B21/30 ,  G01N1/28 ,  G01N37/00 ,  G01Q10/00 ,  G01Q30/08 ,  G01Q30/20 ,  G01Q60/24 ,  G01Q70/00

Abstract: PROBLEM TO BE SOLVED: To observe state of a polymer surface in the air with an atomic force microscope(AFM), by treating the surface by means of plasma including a metal mainly composed of titanium. SOLUTION: In treating a polymer surface by means of plasma including a metal, for instance, titanium, vanadium or the like is used as the metal, but titanium is preferred because of its affinity to carbon and oxygen and availability. The polymer surface may be a film sheet or other kinds of bulk. The polymer is, e.g. polyethylene terephthalate or the like. Sputtering, etc. is employed as an example of a method of treating the polymer surface. It is not necessary to form a physical continuous film to the metal of the surface subjected to the surface treatment by plasma including the metal. Whether the metal actually adheres to the surface is checked, for example, by X-ray photo-electron spectroscopy or the like.

公开(公告)号：JPH09262927A

公开(公告)日：1997-10-07

申请号：JP7419496

申请日：1996-03-28

Applicant: MITSUI TOATSU CHEMICALS

Inventor： GOTOU MASAMI ,  OKAMURA TOMOYUKI ,  YAMAZAKI FUMIHARU ,  KAWAMOTO SATOSHI ,  FUKUDA SHIN ,  FUKUDA NOBUHIRO

IPC: B32B7/02 ,  B32B7/10 ,  B32B9/00 ,  B32B15/04 ,  B32B15/08 ,  B32B27/00 ,  C23C14/08 ,  G02B5/08 ,  G02B5/26

Abstract: PROBLEM TO BE SOLVED: To remarkably improve the heat resistance of a reflecting body with the use of silver by using an amorphous oxide layer which is formed by a spattering method in a high oxygen concentration atmosphere and composed mainly of indium and tin between a transparent polymer film and a silver thin film layer. SOLUTION: A reflecting body is formed by a method in which an oxide (ITO) layer 20 which is made mainly from indium and tin, a silver thin film layer 30, an adhesive layer 40, and a support 50 are laminated on a transparent polymer film 10. With regard to the polymer film 10, films of poly(ether sulphone), poly(ether ether ketone), polyimide, polycarbonate, and polyarylate which are transparent and can stand continuous service at not less than 150 deg.C. are used. As for the ITO film 20, in a spattering method, the partial pressure ratio of argon/oxygen which are spattering gas is adjusted so that oxygen is made greater than an argon/oxygen partial pressure ratio where specific resistance is made minimum, and it is preferable that the ITO film of at least 1×10 Ω.cm specific resistance is formed.

公开(公告)号：JPH08262209A

公开(公告)日：1996-10-11

申请号：JP6731095

申请日：1995-03-27

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KAWAMOTO SATOSHI ,  TAKASE MITSUO ,  FUKUDA SHIN ,  FUKUDA NOBUHIRO

IPC: G02B5/08 ,  B32B7/12 ,  B32B15/08 ,  B32B27/36 ,  G02F1/1335 ,  G02F1/13357

Abstract: PURPOSE: To obtain a back light having high efficiency and little fluctuation of luminance in the plane by using a reflecting member made of a reflecting body comprising a transparent polymer film, silver thin film layer, adhesive layer and thermoplastic polymer substrate which has a shape keeping property. CONSTITUTION: The reflecting body consists of a transparent polymer film 10, silver thin film layer 20, adhesive layer 30, and polymer substrate 40 successively formed in this order. The polymer substrate 40 has a shape keeping property. The reflecting body in this case has an effect to reflect light which enters the body to the original medium and to reflect 80% or more of light in the visible ray region to the original medium and has a shape keeping property. When light enters through the transparent polymer film 10, most of the light is transmitted through the transparent polymer film 10 to the silver thin film layer 20, then reflected on the silver thin film layer 20, transmitted through the transparent polymer film 10 and returned to the original medium.

公开(公告)号：JPH08216326A

公开(公告)日：1996-08-27

申请号：JP2830495

申请日：1995-02-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： FUKUDA SHIN ,  KAWAMOTO SATOSHI ,  FUKUDA NOBUHIRO

IPC: G02B5/08 ,  B32B7/02 ,  B32B7/12 ,  B32B9/00 ,  B32B15/08 ,  B32B15/09 ,  B32B15/18 ,  B32B27/00 ,  C23C14/20

Abstract: PURPOSE: To obtain a reflecting plate exhibiting superior stain-decomposition properties in the application to a reflecting plate for a fluorescent tube. CONSTITUTION: In a reflecting body at least composed of a titanium oxide film layer (A) 50, a transparent polymer film (B) 10, a silver film layer (C) 20, an adhesive layer (D) 30, and a molded planar body (E) 40 in the order of A, B, C, D, and E, the transparent polymer film (B) 10 is made of a polyethylene terephthalate, and the molded planar body (E) 40 is made of a steel sheet. A reflecting plate for a fluorescent tube is formed using the reflecting body.

公开(公告)号：JPH085806A

公开(公告)日：1996-01-12

申请号：JP13477694

申请日：1994-06-17

Applicant: MITSUI TOATSU CHEMICALS

Inventor： FUKUDA SHIN ,  KAWAMOTO SATOSHI ,  GOTOU MASAMI ,  FUKUDA NOBUHIRO

IPC: G02B5/08 ,  B32B7/02 ,  B32B7/12 ,  B32B15/08 ,  G02F1/1335 ,  G02F1/13357

Abstract: PURPOSE:To provide a reflection plate having remarkbly improved light resis tance and to provide a backlight lampareflector having-extremely high reliability for a liquid crystal display. CONSTITUTION:This reflection plate consists of a transparent polymer film 10 (A), alloy thin film layer 20 (B) of 70-300nm film thickness essentially comprising silver, adhesive layer 30 (C), and molded body 40 (D) successively formed in the order of (A)(B)(C)(D). The alloy thin film layer 20 essentially comprising silver consists of silver-gold alloy, silver-platinum alloy, or silver-palladium alloy layer. The transparent polymer film 10 is polyethylene terephthalate, aluminum plate or the like. The backlight lamp reflector for a liquid crystal display uses this reflection plate.

公开(公告)号：JPH07108643A

公开(公告)日：1995-04-25

申请号：JP25298793

申请日：1993-10-08

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KAWAMOTO SATOSHI ,  FUKUDA SHIN ,  FUKUDA NOBUHIRO

IPC: F21V7/22 ,  B32B15/08 ,  G02B5/08

Abstract: PURPOSE:To provide a light resistant matte reflector by regulating total reflectivity measured from a main surface on which a silver thin film layer is not formed to at least specified value and regulating diffusion reflectivity to a range of specified value in a film in which the silver thin film layer has been formed on one of the main surfaces of one side of a polymer film having ray transmittance not exceeding at most specified value in specified wavelength and substantially interrupting ultraviolet rays. CONSTITUTION:The optical characteristics of a polymer film 10 in which a silver thin film layer 20 has been formed on one of the main surface by a vacuum deposition method are so regulated that the ray transmittance in 380-300nm wave length is =85% and the cloudness value is in a range within 2-7%. Interruption characteristics of ultraviolet rays and optical characteistics are controlled by adding solid material having a suitable ultraviolet ray absorptivity into the polymer film 10 and adding an additive when the cloudness value is insufficient. The total reflectivity measured from the other main surface on which the silver thin film layer 20 is not formed is >=93% and the diffusion reflectivity is 4-14%. In the case of using a matte reflective film by bonding it to a molding, an adhesive sticky layer is provided on the surface of the silver thin film layer 20.

公开(公告)号：JPH09174752A

公开(公告)日：1997-07-08

申请号：JP33485295

申请日：1995-12-22

Applicant: MITSUI TOATSU CHEMICALS

Inventor： GOTOU MASAMI ,  KAWAMOTO SATOSHI ,  FUKUDA SHIN ,  FUKUDA NOBUHIRO

IPC: G02B5/08 ,  B32B15/08 ,  G02B5/26

Abstract: PROBLEM TO BE SOLVED: To improve the stability of a reflecting plate in a high temperature environment using silver by using the reflecting plate. SOLUTION: This reflecting plate comprises a transparent polymer film 10, at least one metal layer 20 selected from titanium, tungsten and copper, a silver thin film layer 30, an adhesive layer 40 and a support 50, wherein the reflectivity measured from the polymer film side even after heating at 150 deg.C for 500 hours in the atmosphere is 90% or more.