公开(公告)号：EP3035112A1

公开(公告)日：2016-06-22

申请号：EP14833891.6

申请日：2014-08-01

申请人： Tokuyama Corporation

发明人： ASAHARA, Yoshihiro ,  MOMODA, Junji

IPC分类号： G02C7/10 ,  B05D1/40 ,  B05D7/00 ,  B05C9/12 ,  B05C11/08

CPC分类号： B29D11/00442 ,  B05D1/002 ,  B05D1/005 ,  B05D3/06 ,  B05D3/067 ,  B29D11/00423 ,  B29D11/00884 ,  B29D11/00951

摘要： To provide a photopolymerization device which can prevent sealability deterioration of a workpiece accomodation chamber, accomodating the workpiece, due to repeated operations. Provided is a photopolymerization device including: base 16 to which shaft insertion hole 16a is formed; workpiece retaining and rotating shaft section 20 which passes through the shaft insertion hole, relatively moves in an axial direction to the base, is rotatable about the axis, and holds workpiece W at an end part of the section; cover member 30 which has an opening 35 closable by the base and forms workpiece accomodation chamber R, accomodating the workpiece, by contacting the base with a peripheral part 36 of the opening; light irradiation device 40, which irradiates light to the workpiece placed in the workpiece accomodation chamber; and controller 60 which controls relative movement of the base and the cover member, relative movement of the base and the workpiece retaining and rotating shaft section in the axial direction, rotation of the workpiece retaining and rotating shaft section, and light irradiation of the light irradiation device, wherein the controller controls formation of the workpiece accomodation chamber by contacting the base with the peripheral part and rotation of the workpiece in a first region (R1) of the workpiece accomodation chamber, subsequently, the workpiece placement in a second region (R2), closer to the light irradiation device than the first region, by relative movement of the workpiece retaining and rotating shaft section to the base, and light irradiation toward the workpiece placed in the second region by the light irradiation device.

公开(公告)号：EP3173156A1

公开(公告)日：2017-05-31

申请号：EP15824910.2

申请日：2015-07-21

申请人： Tokuyama Corporation

发明人： ASAHARA, Yoshihiro ,  TAMUKAI, Takashi ,  TAKENAKA, Junji ,  MOMODA, Junji ,  MORI, Katsuhiro

IPC分类号： B05C9/12 ,  B05D3/06 ,  G02B5/23 ,  G02C7/10 ,  B05C11/08

CPC分类号： B29D11/00884 ,  B05D1/005 ,  B05D3/067 ,  B29D11/00442 ,  B29D11/00653 ,  G02B5/08 ,  G02B5/23 ,  G02C7/102

摘要： To provide a photopolymerization device and to provide a production method for a lens that has a photochromic coating layer, the device and the production method being capable of preventing the occurrence of wide liquid pool and of the wrinkle of an end part, even for a workpiece that has a refractive index that is close to that of the photochromic coating layer. A photopolymerization device (20) that has: a workpiece holding part (1) that holds a workpiece (W); and a photoirradiation device (6) that is arranged above the workpiece holding part (1) and that radiates light toward the workpiece (W). The photopolymerization device (20) is configured such that a reflecting plate (3) that has a reflecting surface that has a specular gloss at angles of 60° of 10-200 is arranged below the workpiece holding part (1) and such that light that arrives at the reflecting surface of the reflecting plate (3) is radiated toward the workpiece (W).

摘要翻译： 为了提供一种光聚合装置并提供一种用于具有光致变色涂层的透镜的制造方法，所述装置和制造方法能够防止产生宽的液体积聚和端部的褶皱，即使对于工件 其折射率接近于光致变色涂层的折射率。 一种光聚合装置（20），其具有：保持工件（W）的工件保持部（1）; 和配置在上述工件保持部（1）的上方且朝向上述工件（W）照射光的光照射装置（6）。 光聚合装置（20）构成为在工件保持部（1）的下方配置反射板（3），该反射板（3）具有10°〜60°的60°角镜面光泽的反射面， 到达反射板（3）的反射面的部分朝向工件（W）照射。

公开(公告)号：EP4000750A1

公开(公告)日：2022-05-25

申请号：EP20842982.9

申请日：2020-07-17

申请人： Tokuyama Corporation

发明人： HIRAREN, Toshimitsu ,  ASAHARA, Yoshihiro ,  TAMUKAI, Takashi

IPC分类号： B05D1/40 ,  B05D3/12 ,  B05D7/00 ,  C09D4/00 ,  C09D5/00 ,  C09D7/41 ,  C09D175/04 ,  G02B1/11 ,  G02B1/14 ,  G02B5/23 ,  G02C7/00

摘要： The present invention provides a coating method including: a step of supplying a coating agent to a surface of a lens base material; a spreading step of spreading the coating agent supplied to the surface by rotation of the lens base material; a first removal step of removing at least a part of a liquid pool of the coating agent generated on a peripheral edge portion and/or a side surface portion of the lens base material by rotation of the lens base material after the spreading step; and a second removal step of removing the liquid pool remaining on the peripheral edge portion and/or the side surface portion of the lens base material by bringing an adsorption member into contact with at least the side surface of the lens base material after the first removal step. According to the present invention, it is possible to provide a coating method capable of obtaining a base material having a coating layer excellent in uniformity of film thickness by reducing the liquid pool of the coating agent generated on the peripheral edge portion and/or the side surface portion of the lens base material when the coating layer is formed on the surface of the base material by spin coating the coating agent.

公开(公告)号：EP3770648A1

公开(公告)日：2021-01-27

申请号：EP19770844.9

申请日：2019-03-19

申请人： Tokuyama Corporation

发明人： TAKENAKA, Junji ,  MOMODA, Junji ,  ASAHARA, Yoshihiro ,  TAMUKAI, Takashi

IPC分类号： G02B1/10 ,  G02B5/23 ,  G02C7/10

摘要： A method of producing a plastic lens having a cured coating layer, comprising the steps of:
forming an uncured coating layer from a photocurable coating composition comprising at least a) a photochromic compound, b) a radically polymerizable monomer and c) a photopolymerization initiator on one surface of a plastic lens; and
irradiating the plastic lens having the uncured coating layer with light from an LED having an emission peak wavelength of 350 nm or more to less than 450 nm from above the outer surface of the uncured coating layer to cure the uncured coating layer.