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11. 发明专利

JP2002179428A METHOD FOR MANUFACTURING PATTERNED GLASSWARE ARTICLE 失效
公开(公告)号：JP2002179428A
公开(公告)日：2002-06-26
申请号：JP2000374713
申请日：2000-12-08
申请人： TOYO GLASS CO LTD
发明人： NAGASE RYOJI , HOZUKI EIJI , KUSAKABE NORITOKI , KAJIMA KAZUTOSHI
IPC分类号： C03B11/00 , C03B11/10 , C03B11/14
摘要： PROBLEM TO BE SOLVED: To enable distribution of color patterns and bubble patterns in a glassware article to be adjusted and to prevent remaining of bubbles due to air entrapment. SOLUTION: Distribution range of color patterns in the glassware article can be adjusted by changing weight ratio of a first gob to a second gob charged in a metallic mold. Further a surface of the first gob is made flat by melting colored glass frit planted on the first gob by heating with a burner or the like and thereby air involving around the frit is prevented when the second gob is superposed on the first gob.

12. 发明专利

JP2001100009A METHOD FOR MANUFACTURING LENS SET 失效
公开(公告)号：JP2001100009A
公开(公告)日：2001-04-13
申请号：JP25591599
申请日：1999-09-09
申请人： IND TECH RES INST
发明人： CHIN EIITSU , O SHUNKIN , GI SHUNBIN , SEI KAEI
IPC分类号： C03B11/14 , C03B23/22 , G02B1/00 , G02B3/00
摘要： PROBLEM TO BE SOLVED: To form a compound lens in multilayered structure by directly forming a preform on a lens, cementing it directly across a rough surface, and using a difference in transition temperature. SOLUTION: This method has a step for forming a 1st lens with an optical surface, a step for forming a rough surface at the periphery of the optical surface of the 1st lens, a step for forming a lens preform and arranging it on the optical surface, and a step for forming a 2nd lens (i.e., lens set) by using the 1st lens as a mold for the lens preform through a high-temperature process and cementing the 1st lens and the lens preform into one across the rough surface at the periphery of the optical surface; and the transition temperature of the 1st lens is made higher than that of the lens preform and when the high- temperature process is performed, the 1st lens as the mold is prevented from deforming.

13. 发明专利

JP3092964B2 失效
公开(公告)号：JP3092964B2
公开(公告)日：2000-09-25
申请号：JP10837591
申请日：1991-04-12
IPC分类号： B29C43/18 , B29L11/00 , C03B11/00 , C03B11/08 , C03B11/14 , C03B40/02 , C03C17/32

14. 发明专利

JPH1045419A GLASS LENS HAVING GLASS COATING LAYER AND ITS PRODUCTION 失效
公开(公告)号：JPH1045419A
公开(公告)日：1998-02-17
申请号：JP20069196
申请日：1996-07-30
申请人： HOYA CORP , HOOYA PRECISION KK
发明人： HIROTA SHINICHIRO , OGAMI YUTAKA
IPC分类号： G02B1/02 , C03B11/00 , C03B11/08 , C03B11/14 , C03B23/22 , C03C17/00 , C03C17/02 , G02B3/02
摘要： PROBLEM TO BE SOLVED: To provide a process capable of producing a large-sized glass lens having a glass coating layer without the occurrence of crack even if cooling time is shortened. SOLUTION: This process for producing the glass lens is composed of fusing and integrating at least one of the glass layer 3 formed by pressure coating at least one surface of a glass base material 1 with a glass piece 2 to the glass base material 1. The glass transition temp. of the glass constituting the glass layer 3 is lower by >=40 deg.C than the glass transition temp. of the glass constituting the glass base material 1. In such a case, the difference in the average coefft. of linear expansion between the glass constituting the glass layer 3 and the glass constituting the glass base material 1 and the thickness of the glass layer 3 are so selected that the distortion quantity of the glass base material 1 in the positions of 4mm on the side inner from the outer periphery of the lens and 0.5mm from the boundary between the glass layer 3 and the glass base material 1 attains

15. 发明专利

JPH08277125A FORMATION OF GLASS LENS 失效
公开(公告)号：JPH08277125A
公开(公告)日：1996-10-22
申请号：JP8113495
申请日：1995-04-06
申请人： MINOLTA CO LTD
发明人： NISHIKAWA SHINICHI
IPC分类号： C03B11/00 , C03B11/14
摘要： PURPOSE: To prevent a molding material from fusing to a mold surface and obtain a good glass lens without any cracking or clouding by press forming a material for forming the glass lens having a preformed specific film on the surface for forming a functional surface. CONSTITUTION: A material for forming glass having a metallic oxide film of group IIIa element of the periodic table preformed on a surface for forming a functional surface is press-formed. Although the oxide film of the group IIIa metal of the periodic table remains on the functional surface of the lens obtained by this method after the forming, the film is transparent in a visible region. Thereby, a step for removing the film is not always required. One or more films can be formed on the film after the press forming to thereby manifest performances as an antireflection and a band filters. When the glass lens, however, is incapable of manifesting required optical performances due to the presence of the film, the treatment, etc., can be carried out with an acid to remove the film.

16. 发明专利

JPH06115950A OPTICAL ELEMENT WITH LENS TUBE AND ITS PRODUCTION 失效
公开(公告)号：JPH06115950A
公开(公告)日：1994-04-26
申请号：JP26693792
申请日：1992-10-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HARUHARA MASAAKI , NAKAMURA SHOJI
IPC分类号： C03B11/00 , C03B11/14 , G02B3/00 , G02B7/02
摘要： PURPOSE:To obtain an optical element improved in accuracy by feeding a glass material into a cavity made up of a glass lens tube and a pair of top and bottom molds followed by pressing at a moldable temperature to effect integration of the product with the glass lens tube. CONSTITUTION:Firstly, a lens tube 13 with moderate porosity is molded with a specified mold using a ground glass material. Second, a pair of top and bottom molds 21a, 21b regulated to a specified design are engaged with the inner face of the lens tube 13, and the resultant cavity as the space between the top and bottom molds is fed with an optical element material having equal linear expansion coefficient to that of the material for the lens tube 13 (e.g. lens glass). Third, the cavity is heated to a moldable temperature using a heating device to conduct pressure molding from a pair of relevant pressurization blocks 22a, 22b to effect integration of the resulting lens 14 with the lens tube 13 through melt bonding simultaneously with the molding. Then, the whole system is fully cooled and the product is taken out, thus obtaining the objective optical element with lens tube in high accuracy.

17. 发明专利

JPH05139769A METHOD FOR ASSEMBLING OPTICAL PARTS 失效
公开(公告)号：JPH05139769A
公开(公告)日：1993-06-08
申请号：JP32688191
申请日：1991-11-15
申请人： OLYMPUS OPTICAL CO
发明人： TATSUYAMA MASANOBU
IPC分类号： C03B11/14 , C03B23/22
摘要： PURPOSE:To provide a compact optical part set by integrally molding a cylindrical flask together with molding of a 1st lens with a pair of molds, then molding a 2nd lens with this cylindrical flask, thereby successively molding the lenses in multiple stages. CONSTITUTION:An optical material is heated to about 700 deg.C and inserted between an upper mold consisting of a stainless steel and a lower mold 4b and a lower mold 4a consisting of a cemented carbide. The optical material is then pressed by the upper mold and the lower molds 4a, 4b from the 1st optical part 1 and thereafter, upper mold is parted by slow cooling. The optical material having the transition point temp. lower than the transition point temp. of the part 1 is inserted into the flask formed of the optical part 1 and is press formed by the internal optical surface of the part 1 and the desired upper mold to form the optical part 2. After this upper mold is parted by slow cooling, the optical part is inserted into the flask formed by the part 2 and is pressed by the upper mold 7 to form the optical parts 1, 2, 3; thereafter, the upper mold 7 and the lower molds 4a, 4b are parted. These optical parts 1, 2, 3, are press welded and stuck to each other. The assembled optical parts are thus produced.

18. 发明专利

JPH0530778B2 失效
公开(公告)号：JPH0530778B2
公开(公告)日：1993-05-10
申请号：JP18956488
申请日：1988-07-28
申请人： YUNAITETSUDO TEKUNOROJIIZU CORP
发明人： DEBITSUDO KAAPENTAA JAAMON , ERITSUKU MAINFUOODO
IPC分类号： C03B11/14 , C03C14/00

19. 发明专利

JPH04224119A METHOD FOR FORMING OPTICAL ELEMENT 失效
公开(公告)号：JPH04224119A
公开(公告)日：1992-08-13
申请号：JP41386790
申请日：1990-12-20
申请人： OLYMPUS OPTICAL CO
发明人： KAWAMURA EIJI
IPC分类号： C03B11/00 , C03B11/08 , C03B11/14 , C03B21/00 , C03B23/00
摘要： PURPOSE:To offer a simple and efficient method for forming optical stock by heating flat glass 12 to a prescribed temp., softening it, flowing out and mounting molten glass 9 on its upper face, cooling it in the process of forming by a pair of dies 13 and 14, generating cracks and obtaining an optical element. CONSTITUTION:This is a method for forming an optical element in which, in the process of transferring flat glass 12 held to a carrier arm to a pair of dies 13 and 14, it is heated to a prescribed temp. and is reheated; on its upper face, a prescribed amt. of molten glass 9 is placed and is interposingly transferred into the space between the above a pair of dies 13 and 14 ; the flat glass 12 is cooled together with the upper die 13 and the lower die 14 in the process of press forming by the upper die 13 and the lower die 14 from the upper face of the above molten glass 9 to generate strains on the peripheral part of the pressing in the flat glass 12 by the upper and lower dies 13 and 14; by the above strains, cracks are generated; and so that the separation of an optical element as well as the distancing between the upper die 13 and the lower die 14 can be executed.

20. 发明专利

JPH0146453B2 失效
公开(公告)号：JPH0146453B2
公开(公告)日：1989-10-09
申请号：JP12996785
申请日：1985-06-17
申请人： HOYA CORP
发明人： ISHIBAI ISAO , HIROTA SHINICHIRO , IZUMITANI TETSUO
IPC分类号： C03B23/22 , C03B11/00 , C03B11/14

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