公开(公告)号：JPH0316933A

公开(公告)日：1991-01-24

申请号：JP15291389

申请日：1989-06-15

Applicant: SUMITA OPTICAL GLASS

Inventor： HASHIMOTO HITOSHI ,  SAWANOBORI SHIGETO ,  NAGAHAMA SHINOBU

IPC: G02B5/22 ,  C03C3/17 ,  C03C3/19 ,  C03C4/08 ,  F21V9/04

Abstract: PURPOSE:To obtain a glass for near infrared absorption filter, exhibiting water- resistance and weather-resistance durable to long-term use and having high absorption coefficient in near infrared region and high transmission in visible range by using a CuO-doped phosphate glass as a matrix. CONSTITUTION:The objective glass for near infrared absorption filter useful for the sensitivity correction of a light receiving element of a color image pickup device is a CuO-containing phosphate glass having a composition of (A) 65.0-75.0wt.% of P2O5, (B) 11.0-14.0wt.% of Al2O3, (C) 0-4.0wt.% of B2O3, (D) 3.0-9.0wt.% of K2O, (E) 2.0-6.0wt.% of MgO, (F) 0-4.0wt.% of ZnO and (G) 1.5-4.0wt.% of CuO.

公开(公告)号：JPH0316932A

公开(公告)日：1991-01-24

申请号：JP14999589

申请日：1989-06-13

Applicant: SUMITA OPTICAL GLASS

Inventor： BABA NOBUYOSHI ,  NAGAHAMA SHINOBU

IPC: C03C3/068 ,  C03C3/15 ,  C03C3/155 ,  C03C4/00

Abstract: PURPOSE:To provide an optical glass for precision press-molding, having a specific oxide composition, a yield temperature of

公开(公告)号：JPH02283635A

公开(公告)日：1990-11-21

申请号：JP32398688

申请日：1988-12-22

Applicant: SUMITA OPTICAL GLASS

Inventor： KOMIYA MASAYUKI ,  OTSUKA MASAAKI ,  SAWANOBORI SHIGETO ,  NAGAHAMA SHINOBU

IPC: C03C3/247 ,  C03C4/00

Abstract: PURPOSE:To provide the title glass having high light transmissivity in short wavelength region, easy to produce, made up of P2O5, Al2O3, BaO, AlF3, MgF2, CaF2, SrF2, BaCl2, BaF2 and NaF at a specified molar ratio. CONSTITUTION:The objective glass made up of (A) 0.5-8mol% of P2O5, (B) 0.1-2mol% of Al2O3, (C) 0.5-7mol% of BaO, (D) 29-42mol% of AlF3, (E) 5-13mol% of MgF2, (F) 15-30.5mol% of CaF2, (G) 10-22mol% of SrF2, (H) 0.5-16.5mol% of BaCl2, (I) 0-11mol% of BaF2 and (J) 0-7.5mol% of NaF. To produce the present glass, the above raw materials are mixed at a specified ratio and melted at ca. 900-1100 deg.C followed by casting in a conventional way. The present glass has high light transmissivity over a short wavelength region of 200 to 300nm, thus being suitably used for various kinds of optical instruments, etc., to be used over said short wavelength region.

公开(公告)号：JPH01294550A

公开(公告)日：1989-11-28

申请号：JP12537588

申请日：1988-05-23

Applicant: SUMITA OPTICAL GLASS

Inventor： SAWANOBORI SHIGETO ,  YAMAUCHI JUNYA ,  BABA NOBUYOSHI ,  NAGAHAMA SHINOBU

IPC: C03C3/32 ,  C03C4/10

Abstract: PURPOSE:To provide the stable title glass capable of transmitting light from visible area to wide infrared ray area and having excellent infrared ray transmission by constituting a glass of ZrF4, BaCl2, LiF and NaF having a specific molar ratio. CONSTITUTION:The aimed infrared ray transmitting glass has a composition consisting of 35-65mol% ZrF4, 5-30mol% BaCl2, 5-30mol% LiF, 5-30mol% NaF and 10-60mol% total amount of LiF and NaF. Ionization tendency can be lessen by furthermore adding at least one kind selected from AlF3, GaF3, YF3, LaF3 and GdF3 to the above-mentioned composition at an amount of 1-15%. Stability can be further improved by moreover adding at least one kind selected from CaF2, SrF2 and BaF2 thereto at an amount of 3-30%. The resultant infrared ray-transmitting glass is useful as a lens, etc., used in infrared ray area.

公开(公告)号：JPH01286934A

公开(公告)日：1989-11-17

申请号：JP11315288

申请日：1988-05-10

Applicant: SUMITA OPTICAL GLASS

Inventor： BABA NOBUYOSHI ,  KOMIYA MASAYUKI ,  NAGAHAMA SHINOBU

IPC: C03C3/068

Abstract: PURPOSE:To produce the subject glass having low softening point, high refractive index and low dispersion, at a relatively low temperature, by compounding B2O3, SiO2, La2O3, Gd2O3, Li2O, CaO and BaO at specific ratios. CONSTITUTION:A mixture is produced by compounding 10-35wt.% of B2O3, 5-30wt.% of SiO2, 0-35wt.% of La2O3, 0-35wt.% of Gd2O3 (La2O3+Gd2O3 is 20-40wt.%), 3-8wt.% of Li2O, 0-20wt.% of CaO and 0-25wt.% of BaO (CaO+BaO is 10-30wt.%). The mixture is optionally added with a small amount of As2O3 (defoaming and color-protection agent), melted at 1,100-1,300 deg.C, formed and cooled to obtain an optical glass for precision press forming having a deflection temperature (At) of

公开(公告)号：JP2007275199A

公开(公告)日：2007-10-25

申请号：JP2006103553

申请日：2006-04-04

Applicant: Sumita Optical Glass Inc ,  株式会社住田光学ガラス

Inventor： TAGAWA MASAFUMI ,  YAMAZAKI MASAAKI ,  ISHII OSAMU ,  NAGAHAMA SHINOBU

IPC: A61B1/06 ,  A61B1/00 ,  G02B6/00 ,  G02B6/42 ,  G02B23/26 ,  H01S3/06 ,  H01S3/08 ,  H01S3/094 ,  H01S3/098

CPC classification number: A61B1/0653

Abstract: PROBLEM TO BE SOLVED: To make an endoscope body compact and to increase a light quantity irradiated from the endoscope body. SOLUTION: An observation device comprises: a cylindrical endoscope body 2; an image guide 3 for transmitting image information imaged on one end side of the endoscope body 2 to the other end side; an optical fiber 4 for emitting light from one end of the endoscope body 2; a blue semiconductor laser element 5 for making excitation light be incident on the other end of the optical fiber 4; and dichroic mirrors 6 and 7 disposed on both end sides of the optical fiber 4 and constituting a laser resonator. The core 4a of the optical fiber 4 is formed of glass containing praseodymium ions which emit wavelength converted light when excited by the excitation light of the semiconductor laser element 5, and the light laser-resonated and wavelength-converted inside the core 4a is emitted from the endoscope body 2. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：使内窥镜体紧凑并增加从内窥镜体照射的光量。 解决方案：观察装置包括：圆柱形内窥镜主体2; 用于将在内窥镜主体2的一端侧成像的图像信息传送到另一端的图像引导件3; 用于从内窥镜主体2的一端发射光的光纤4; 用于使激发光入射到光纤4的另一端的蓝色半导体激光元件5; 以及配置在光纤4的两端侧并构成激光谐振器的分色镜6和7。 光纤4的芯4a由含有镨离子的玻璃形成，当由半导体激光元件5的激发光激发时，发出波长转换的光，并且在芯4a内的激光谐振和波长转换的光从 内窥镜主体2.版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006151758A

公开(公告)日：2006-06-15

申请号：JP2004345486

申请日：2004-11-30

Applicant: Sumita Optical Glass Inc ,  株式会社住田光学ガラス

Inventor： YAMAMOTO YOSHINORI ,  SAWANOBORI SHIGETO ,  NAGAHAMA SHINOBU

IPC: C03C3/068 ,  G02B1/00

CPC classification number: C03C3/068 ,  C03C3/253

Abstract: PROBLEM TO BE SOLVED: To provide optical glass for precision press molding having a specified optical constant by suppressing the content of GeO
2 and containing Bi
2 O
3 much and where Tg is 570°C or lower.
SOLUTION: The optical glass for precision press molding includes by weight 3-19% GeO
2 , 8-23% B
2 O
3 , 3-27% La
2 O
3 , 0-21% Gd
2 O
3 , 12-37% total of La
2 O
3 +Gg
2 O
3 , 1-23% ZnO, 0-7% ZrO
2 , 11-63% Bi
2 O
3 , 0-15% Ta
2 O
5 , 0-3% Li
2 O, 0-10% Nb
2 O
5 and 0-9% WO
3 . The optical glass has a transition temperature (Tg) of 570°C or lower, a refractive index (nd) of 1.80-2.05 and an Abbe's number (νd) of 20.0-40.0.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：通过抑制GeO 2 的含量并含有Bi 2 O 来提供具有特定光学常数的精密压模成型用光学玻璃， 3 ，Tg在570℃以下。 解决方案：用于精密加压成型的光学玻璃包括3-19％GeO 2 ，8-23％B 2 O 3 5 ，0-3％Li 2 O，0-10％Nb 2 5 和0-9％ WO 3 。 光学玻璃的转变温度（Tg）为570℃以下，折射率（nd）为1.80〜0.05，阿贝数（νd）为20.0〜40.0。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005200261A

公开(公告)日：2005-07-28

申请号：JP2004007621

申请日：2004-01-15

Applicant: Sumita Optical Glass Inc ,  株式会社住田光学ガラス

Inventor： YAMAMOTO YOSHINORI ,  SAWANOBORI SHIGETO ,  NAGAHAMA SHINOBU

IPC: C03C3/16 ,  C03C3/19 ,  C03C3/21 ,  C03C3/253

CPC classification number: C03C3/16 ,  Y10S501/901

Abstract: PROBLEM TO BE SOLVED: To provide high refractive index, high dispersion optical glass for precision press forming which has refractive index (nd) of ≥1.83 and Abbe's number (νd) of ≤26.0, does not contain components harmful to human body at all though having effects of easily decreasing the melting point same as lead oxide or tellurium oxide, has a low temperature softening characteristic that the deformation temperature (At) is ≤550°C, is small in the coloring of glass and excellent in mass-productivity and is hardly colored by the irradiation with ultraviolet ray.
SOLUTION: The optical glass for precision press forming comprises a composition of 15-29 wt.% P
2 O
5 , 0-2 wt.% B
2 O
3 , 0-14 wt.% GeO
2 , 20-35 wt.% in total of P
2 O
5 , B
2 O
3 and GeO
2 , 0-5 wt.% Li
2 O, 3-14 wt.% Na
2 O, 0-9 wt.% K
2 O, 5-15 wt.% in total of Li
2 O, Na
2 O and K
2 O, 2-22 wt.% Nb
2 O
3 , 34-60 wt.% Bi
2 O
3 , 0-5 wt.% WO
3 , 0-5 wt.% BaO and 0-7 wt.% In
2 O
3 and has ≤550°C deformation temperature (At), refractive index (nd) of ≥1.83 and Abbe number (νd) of ≤26.0.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供高折射率，折射率（nd）≥1.83和阿贝数（νd）≤26.0的精密冲压成形用高分散型光学玻璃，不含有对人体有害的成分 尽管具有容易降低与氧化铅或氧化碲相同的熔点的效果，但是具有变形温度（At）≤550℃的低温软化特性，玻璃的着色小， 通过紫外线照射几乎不着色。 解决方案：用于精密压制成型的光学玻璃包含15-29重量％的P 2 5 ，0-2重量％的B SB > 0 3 ，0-14重量％的GeO 2 SBB，20-35重量％的P 2 O 5 ，B 2 3 和GeO 2 ，0-5重量％Li O，3-14重量％Na 2 SBO，0-9重量％K 2 SBO，总共5-15重量％的Li O 2，SB 2，K 2 O 2，K 2 O 2，SB 2 O 2，Sb 2 O 2， 34-60重量％的Bi 3 SB 3，0-5重量％的WO 3 SB，3-O- 5重量％BaO和0-7重量％In 2 3 ，具有≤550℃变形温度（At），折射率（nd）≥1.83 阿贝数（νd）≤26.0。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2003026439A

公开(公告)日：2003-01-29

申请号：JP2001213295

申请日：2001-07-13

Applicant: Sumita Optical Glass Inc ,  株式会社住田光学ガラス

Inventor： OTSUKA MASAAKI ,  YAMAMOTO YOSHINORI ,  TSUCHIYA KOICHI ,  SAWANOBORI SHIGETO ,  NAGAHAMA SHINOBU

IPC: G02B1/00 ,  C03C3/17

CPC classification number: C03C3/17

Abstract: PROBLEM TO BE SOLVED: To provide low melting point glass which can be subjected to press forming at a low temperature of about 350 to 400 deg.C, and has excellent durability. SOLUTION: The optical glass for forming a mold consists of low melting point glass obtained by incorporating a durability improvement component into phosphate based oxide glass as well as glass forming components, and the loss rate in a ductility test is

Abstract translation: 要解决的问题：提供可在约350〜400℃的低温下进行加压成型的耐熔性优异的低熔点玻璃。 解决方案：用于形成模具的光学玻璃由通过将耐久性改进组分掺入磷酸盐基氧化物玻璃以及玻璃形成组分而获得的低熔点玻璃构成，延展性试验中的损失率<0.15重量％。 该玻璃特别包含32〜40％的P2 O 5，6〜21％的Li 2 O，8〜31％的Na 2 O，4〜22％的K 2 O，7.4〜16％的Al 2 O 3，0〜19.6的ZnO， 0至12％的BaO和35.1至49％的Li 2 O + Na 2 O + K 2 O.

公开(公告)号：JP2000063145A

公开(公告)日：2000-02-29

申请号：JP22578298

申请日：1998-08-10

Applicant: SUMITA OPTICAL GLASS

Inventor： HOSONO HIDEO ,  YAMAZAKI MASAAKI ,  YAMAMOTO YOSHINORI ,  SAWANOBORI SHIGETO ,  NAGAHAMA SHINOBU

IPC: G01T1/10 ,  C03C3/062 ,  C03C3/068 ,  C03C3/12 ,  C03C3/15 ,  C03C4/12

Abstract: PROBLEM TO BE SOLVED: To provide an oxide glass exhibiting long afterglow and accelerated phosphorescence, storing energy by the excitation with γ-rays, X-rays, ultraviolet rays, etc., continuing the emission of light for a long time after stopping the excitation and usable as a light-accumulation material for illumination, sign, etc. at night. SOLUTION: The objective glass is a composition composed of 20-45 mol.% of Al2O3, 45-70 mol.% of CaO, 0.01-5 mol.% of Tb2O3, 0-20 mol.% of MgO, 0-20 mol.% of BaO, 0-10 mol.% of SiO2 and 0-8 mol.% of Ln2O3 (Ln is one or more kinds of atoms selected from Yb, Y, La, Gd, Lu, Sm, Dy, Tm and Pr).