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21. 发明专利

JPH06174944A METHOD FOR GRINDING OUTER PERIPHERAL PART OF PLASTIC FIBER 失效
公开(公告)号：JPH06174944A
公开(公告)日：1994-06-24
申请号：JP33189492
申请日：1992-12-11
申请人： MITSUBISHI RAYON CO
发明人： UOZU YOSHIHIRO , IEDA YOSHIHIRO
IPC分类号： G02B6/00 , G02B6/028 , G02B6/18
摘要： PURPOSE:To provide the grinding method of the outer peripheral part of a plastic fiber for removing the outer peripheral part only by desired thickness so as it does not contribute to optical transmission without causing the problem of the degradation in the optical fiber itself. CONSTITUTION:The plastic fiber is immersed in a first solvent capable of dissolving or swelling the fiber in a prescribed time to swell the outer peripheral part of the fiber, then the plastic fiber passes through the hole of an elastic member having the hole of sufficiently small inside diameter compared with an outside diameter to remove the outer periphery part of the swelled plastic fiber, moreover, the fiber passes through a second solvent which is hardly dissolve the plastic fiber and easily dissolve the first solvent.

22. 发明专利

JPH06160609A BICONCAVE FACED CYLINDRICAL LENS MADE OF PLASTIC AND ITS PRODUCTION 失效
公开(公告)号：JPH06160609A
公开(公告)日：1994-06-07
申请号：JP33682492
申请日：1992-11-25
申请人： MITSUBISHI RAYON CO
发明人： UOZU YOSHIHIRO , KAWARADA YASUSHI
IPC分类号： G02B3/06
摘要： PURPOSE:To provide the cylindrical lens made of plastic having a lined concave faced lens part. CONSTITUTION:A photomask having a cylindrical lens pattern is pressed to a flat planar material formed by molding a mixture composed of a polymer (A) and a monomer (B) which can form a polymer varying in refractive index from this polymer (A) and this material is irradiated with parallel rays of light from the photomask surface; thereafter, the photomask is removed and further, the material is irradiated with diffused light in this state, by which the flat planar resin compsn. is cured and the biconcave lens-shaped cylindrical lens part 1 is formed within the flat planar surface.

23. 发明专利

JPH06160608A ASPHERICAL MICROLENS MADE OF PLASTIC AND ITS PRODUCTION 失效
公开(公告)号：JPH06160608A
公开(公告)日：1994-06-07
申请号：JP33680492
申请日：1992-11-25
申请人： MITSUBISHI RAYON CO
发明人： UOZU YOSHIHIRO , KAWARADA YASUSHI
IPC分类号： G02B1/04 , G02B3/00 , G02B13/18
摘要： PURPOSE:To provide the aspherical microlens provided with a microlens of a concave lens within a flat plate made of plastic. CONSTITUTION:A photomask having a circular light opaque part is brought into tight contact with a molded flat plate surface consisting of a transparent mixture composed of a transparent org. polymer (A) and a photopolymerizable vinyl monomer (B) and is irradiated in this state with parallel light rays; thereafter, the photomask is removed and the mixture is irradiated with diffused light to cure the entire part, by which the biconcave lens part having optical axisymmetry is formed in the mask part and opaque parts are formed in the other part.

24. 发明专利

JPH06128313A PRODUCTION OF CURED RESIN 失效
公开(公告)号：JPH06128313A
公开(公告)日：1994-05-10
申请号：JP30449392
申请日：1992-10-19
申请人： MITSUBISHI RAYON CO
发明人： KAWARADA YASUSHI , UOZU YOSHIHIRO
IPC分类号： C08F2/44 , C08F2/48 , C08F2/50 , C08F20/30 , C08F220/10
摘要： PURPOSE:To obtain a cured resin which has a multi-phase structure and is effectively utilizable as a display, etc., by, irradiating a molding comprising a polymer having a specific refractive index, a monomer having a specific refractive index, and a photopolymerization initiator with parallel beams of light to conduct photopolymerization. CONSTITUTION:A molding is produced from a composition which comprises a polymer having a refractive index n1, a monomer capable of dissolving the polymer therein and forming a polymer having a refractive index no (n1not equal to n2), and a photopolymerization initiator. The molding is irradiated with parallel beams of light to photopolymerize the monomer to thereby obtain the desired resin. The beams can be obtained, for example, with an apparatus comprising an ultraviolet lamp 1, a condensing mirror 2 for reflecting the light emitted from the lamp 1, a reflecting mirror 3 for diverting the reflected light, an optical integrator 4 for diffusing the diverted and concentrated light, and a collimator lens 5 for converting the resulting light into parallel beams 6. The title resin can have varying degrees of light transmittance depending on view angle, and is utilizable as a display, light modulator, etc.

25. 发明专利

JPH0553017A LINEAR LIGHT EMITTING BODY 失效
公开(公告)号：JPH0553017A
公开(公告)日：1993-03-05
申请号：JP24017491
申请日：1991-08-28
申请人： MITSUBISHI RAYON CO
发明人： UOZU YOSHIHIRO , ODA MASAAKI
IPC分类号： G02B6/00 , G02B6/028 , G03B27/54 , H04N1/04
摘要： PURPOSE:To obtain the light emitting body which can emit light uniformly, is light in weight, can be easily assembled, is small in size, and can be utilized as a light source of an image sensor by disposing a light source at the end face of a photoconductor which consists of a transparent strand-like photoconductor and has the refractive index continuously decreasing from the outer peripheral surface of the photoconductor toward the central axis. CONSTITUTION:The light source is disposed at one end of the photoconductor having the refractive index continuously decreasing from the outer peripheral surface of the photoconductor having a circular shape in section toward the central axis. N-kinds of uncured materials which have 10 to 10 poise viscosity in an uncured state so as to facilitate the characteristic control of the linear light emitting body in the uncured state and have the refractive index n of the cured materials formed by curing the uncured materials satisfying the relations n1

26. 发明专利

JPH04251805A REFRACTIVE INDEX DISTRIBUTION TYPE PLASTIC OPTICAL TRANSMISSION BODY 失效
公开(公告)号：JPH04251805A
公开(公告)日：1992-09-08
申请号：JP2522491
申请日：1991-01-28
申请人： MITSUBISHI RAYON CO
发明人： TOYODA NOBUHIKO , UOZU YOSHIHIRO
IPC分类号： G02B3/00 , G02B6/00 , G02B6/028
摘要： PURPOSE:To make the distribution of the transmitted light quantity more uniform within the optical transmission body. CONSTITUTION:This refractive index distribution type optical transmission body has a circular section of a radius ro and the distribution of the light quantity within this optical transmission body is uniformized by continuously changing the concn. distribution of a light absorptive material from the center toward the outer peripheral part. For example, >=2 kinds of mixtures which are polymerizable materials consisting of polymers and monomers liquid at ordinary temp. and vary in refractive index are made into >=2 layers of laminated structural bodies by using a concentrical composite spinning nozzle, etc., and are molded to a prescribed shape. The molding is polymerized and cured while or after a smooth refractive index distribution is provided thereon by the interdiffusion transfer of the monomers in the polymerizable mixtures between the respective layers. Dyes, such as azo dyes and anthraquinone dyes, are exemplified as the light absorptive material. The adjustment of the refractive index of the polymerizable mixtures varying in the refractive index is executed by specifying the polymers and changing the kinds, compounding ratios, etc., of the monomers and light absorptive materials to be added to these polymers.

27. 发明专利

JPH04141602A PRODUCTION OF OPTICAL TRANSMISSION BODY ARRAY 失效
公开(公告)号：JPH04141602A
公开(公告)日：1992-05-15
申请号：JP26375790
申请日：1990-10-03
申请人： MITSUBISHI RAYON CO
发明人： MISHINA YOSHIHIKO , UOZU YOSHIHIRO , HOSHIIDE YOSHIHIKO , HABARA HIDEAKI
IPC分类号： G02B3/00
摘要： PURPOSE:To allow the efficient production of the optical transmission body array to the nearly uniform lengths for the widths of substrates by arraying plastic distributed index bar-shaped lenses nearly equal to the lengths of the widths of the substrates between the original substrates and adhering the lens via adhesives, then cutting the original plate of the optical transmission body array formed in such a manner at the prescribed width of the bar-shaped lenses. CONSTITUTION:Long-sized bodies of the distributed index bar-shaped lenses which can be easily cut and have nearly uniform conjugation lengths are used. Namely, the original plate of the optical transmission body arrays formed by parallel arranging the plastic distributed index bar-shaped lenses of the lengths nearly equal to the lengths of the widths of the substrates between two sheets of the substrates having the width of 2 to n times the prescribed length for obtaining the desired conjugation length of the distributed index bar-shaped lenses and adhering these lenses via the adhesives is cut at the width equal to the prescribed lens length of the distributed index bar-shaped lenses to form n-sheets of the optical transmission body arrays. The optical transmission body arrays having the nearly uniform lengths of the widths of the substrates are efficiently produced in this way.

28. 发明专利

JPH04141310A METHOD FOR CUTTING OFF TWO END FACES OF PLASTIC MOLDING 失效
公开(公告)号：JPH04141310A
公开(公告)日：1992-05-14
申请号：JP26375590
申请日：1990-10-03
申请人： MITSUBISHI RAYON CO
发明人： KOIKE KAZUNORI , UOZU YOSHIHIRO , ODA MASAAKI , YAMAMOTO YUTAKA
IPC分类号： G02B3/00 , B23C3/13
摘要： PURPOSE:To give high accuracy smooth parallel surfaces to lens array in cutting off two end faces of plastic moldings such as light transmitting body array by working opposite surfaces of the plastic moldings with a pair of opposite cutting edges. CONSTITUTION:While a plastic molding 4 is held by clamps 11, 12 and cutting edges 5, 6(5', 6') are rotated, the transfer of the plastic molding 4 is started by a clamp transferring means 21. Then, the plastic molding 4 is cut off on the upper and lower surfaces with rotating cutting edges 5, 6(5', 6'). Then, rotary shafts for a pair of rotary cutting edge 5, 6(5', 6') are disposed parallel to each other and the positional relationship between the longitudinal direction of the plastic molding 4 and the direction of arranging the cutting edges 5, 6(5', 6') is held such that both directions are orthogonal to each other. Thus, the plastic molding 4 is formed on the upper and lower surfaces with high accuracy cut surfaces 7, 8.

29. 发明专利

JPH0450244A SURFACE CURE-TREATING AGENT FOR PLASTIC OPTICAL TRANSMISSION OBJECT 失效
公开(公告)号：JPH0450244A
公开(公告)日：1992-02-19
申请号：JP15867790
申请日：1990-06-19
申请人： MITSUBISHI RAYON CO
发明人： SUGIMORI TERUHIKO , UOZU YOSHIHIRO , YAMAMOTO YUTAKA , TANAKA TAKAYUKI , YOSHIDA HARUHIKO
IPC分类号： G02B6/00 , C08J7/04 , G02B1/04 , G02B1/10 , G02B1/14 , G02B3/00 , G02B6/02
摘要： PURPOSE:To provide the title agent capable of surface curing treatment without causing the erosion of the surface of the title optical transmission object, thus not deteriorating lens performance and its surface characteristics, comprising a crosslink-curable resin material and a solvent of specific boiling point insoluble for said optical transmission object at normal temperatures. CONSTITUTION:The objective treating agent comprising e.g. (A) a solvent =30wt.% of at least one polyfunctional monomer having in one molecule three or more (meth)acryloyloxy groups [e.g. dipentaerythritol tri(meth)acrylate] and (2)

30. 发明专利

JPH03256008A SURFACE HARDENING TREATMENT OF OPTICAL TRANSMITTER ARRAY 失效
公开(公告)号：JPH03256008A
公开(公告)日：1991-11-14
申请号：JP5358290
申请日：1990-03-07
申请人： MITSUBISHI RAYON CO
发明人： MISHINA YOSHIHIKO , MURATA RYUJI , KOIKE KAZUNORI , UOZU YOSHIHIRO , ISHIMARU TERUHIRO , ODA MASAAKI , KAMIYAMA SHINICHI
IPC分类号： G02B6/06
摘要： PURPOSE:To form a surface hardened protective layer which is free from burrs by holding an optical transmitter array coated with a surface treating agent of a UV curing type on its light entering and exiting end face in the major axis direction, then irradiating the end faces with UV rays after holding the array in a rotating state or while rotating the array, thereby subjecting the surface treating agent to a curing treatment. CONSTITUTION:The surface treating agent of the UV curing type is applied on the light entering and exiting end face of the optical transmitter array 11 formed by joining and crimping the arranging body of distributed index rod-shaped lenses with two sheets of plate members 12. Such optical transmission body array 11 is held in its major axis direction and is irradiated with the UV rays after the array is held in the rotating state or while the array is kept rotated, by which the surface treating agent is subjected to the curing treatment. The surface treating agent essentially composed of polyfunctional acrylate having >=2 pieces of acryloyloxy groups in one molecule is preferably used as the surface treating agent of the UV curing type to be applied. The cured protective film which has a high hardness, has a uniform thickness and is free from the burrs is formed in this way.

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