Sumita Optical Glass Inc

Minamiaizu, Japan

Sumita Optical Glass Inc

Minamiaizu, Japan
SEARCH FILTERS
Time filter
Source Type

Patent
Sumita Optical Glass Inc. and Toyoda Gosei | Date: 2012-03-13

A method of making a solid element device that includes a solid element, an element mount part on which the solid element is mounted and which has a thermal conductivity of not less than 100 W/mK, an external terminal provided separately from the element mount part and electrically connected to the solid element, and a glass sealing part directly contacting and covering the solid element for sealing the solid element, includes pressing a glass material at a temperature higher than a yield point of the glass material for forming the glass sealing part.


Patent
Toyoda Gosei and Sumita Optical Glass Inc. | Date: 2013-05-29

A method of making a solid element device, which comprises mounting a plurality of solid elements (7001) on a plate-shaped inorganic material substrate (7003), setting a plate-shaped glass (7007) on the plurality of solid elements (7001) and parallel to the plate-shaped inorganic material substrate (7003), hot pressing the plate-shaped glass (7007) so as to collectively seal the plurality of solid elements (7001) on the inorganic material substrate (7008) such that the plate-shaped glass (7007) contacts the plurality of solid elements (7001), and separating the inorganic material substrate (7003) integrated with the plate-shaped glass (7007) into the solid element device.


Patent
Sumita Optical Glass INC. and Toyoda Gosei | Date: 2011-07-22

A method of manufacturing a light-emitting device including a light-emitting element mounted on a substrate and sealed with a glass. The method includes heating the glass by a first mold that is heated to a temperature higher than a yield point of the glass, the glass contacting the first mold, and pressing the glass against the light-emitting element mounted on the substrate supported by a second mold to seal the light-emitting element with the glass.


Patent
Sumita Optical Glass Inc. | Date: 2015-06-11

To provide an optical system that lengthens the lifetime of a fiber, an optical system 13 guides light beams emitted from a plurality of light emitting parts ep into a single optical fiber 12, the plurality of light emitting parts ep are arranged to be aligned along a first direction d1, and the optical system 13 allows the light beams emitted from the plurality of light emitting parts ep to have different light collection centers which are offset from each other at least in a second direction d2.


Patent
Sumita Optical Glass Inc. | Date: 2015-03-10

Provided is a medium-refractive-index low-dispersion optical glass that may be precision press-molded, that has a high water resistance, and that has a low specific gravity, as well as a preform for precision press molding and an optical element which use such an optical glass. The optical glass has a composition including, in % by mass, SiO_(2): 35 to 55%, B_(2)O_(3): 12 to 27%, Al_(2)O_(3): 6 to 16%, Li_(2)O: 5 to 12%, MgO: 0 to 10%, CaO: 5 to 17%, ZrO_(2): 0 to 7%, La_(2)O_(3): 0 to 7%, ZnO: 0 to 5%, TiO_(2): 0 to 5%, Nb_(2)O_(5): 0 to 5%, and Ta_(2)O_(5): 0 to 5%. SrO and BaO are not included.


Patent
Sumita Optical Glass Inc. | Date: 2015-11-04

Provided is an optical glass having low specific gravity, low abrasion degree, and high devitrification-proof stability, as well as a preform for precision press molding and an optical element which use such an optical glass. The optical glass has a composition including, in cationic % expression, P^(5+): 36 to 40%, Al^(3+): 11 to 16%, Mg^(2+): 11 to 19%, Ca^(2+): greater than 0% and 2% or less, Sr^(2+): 0 to 4%, Ba^(2+): 25 to 31%, Zn^(2+): 0% or more and less than 2.4%, and Y^(3+): 2 to 7%, a total amount of Zn^(2+) and Y^(3+) (Zn^(2+) + Y^(3+)) being 3 to 7%. The composition also includes, in anionic % expression, O^(2-): 74 to 78%, and F^(-): 22 to 26%. Li^(+), Na^(+), K^(+), La^(3+), and Gd^(3+) are not included. The optical glass further has a refractive index (nd) of 1.58 to 1.60 and an Abbe number (vd) of 67 to 69.


Patent
Sumita Optical Glass Inc. | Date: 2015-10-14

Provided is a medium-refractive-index low-dispersion optical glass that may be precision press-molded, that has a high water resistance, and that has a low specific gravity, as well as a preform for precision press molding and an optical element which use such an optical glass. The optical glass has a composition including, in % by mass, SiO_(2): 35 to 55%, B_(2)O_(3): 12 to 27%, Al_(2)O_(3): 6 to 16%, Li_(2)O: 5 to 12%, MgO: 0 to 10%, CaO: 5 to 17%, ZrO_(2): 0 to 7%, La_(2)O_(3): 0 to 7%, ZnO: 0 to 5%, TiO_(2): 0 to 5%, Nb_(2)O_(5): 0 to 5%, and Ta_(2)O_(5): 0 to 5%. SrO and BaO are not included.


Patent
Sumita Optical Glass Inc. | Date: 2015-12-30

To provide an optical system that lengthens the lifetime of a fiber, an optical system 13 guides light beams emitted from a plurality of light emitting parts ep into a single optical fiber 12, the plurality of light emitting parts ep are arranged to be aligned along a first direction d1, and the optical system 13 allows the light beams emitted from the plurality of light emitting parts ep to have different light collection centers which are offset from each other at least in a second direction d2.


Patent
Sumita Optical Glass Inc. | Date: 2015-04-15

Provided is an optical glass having low specific gravity, low abrasion degree, and high devitrification-proof stability, as well as a preform for precision press molding and an optical element which use such an optical glass. The optical glass has a composition including, in cationic % expression, P^(5+): 36 to 40%, Al^(3+): 11 to 16%, Mg^(2+): 11 to 19%, Ca^(2+): greater than 0% and 2% or less, Sr^(2+): 0 to 4%, Ba^(2+): 25 to 31%, Zn^(2+): 0% or more and less than 2.4%, and Y^(3+): 2 to 7%, a total amount of Zn^(2+)and Y^(3+) (Zn^(2+)+Y^(3+)) being 3 to 7%. The composition also includes, in anionic % expression, O^(2): 74 to 78%, and F^(): 22 to 26%. Li^(+), Na^(+), K^(+), La^(3+), and Gd^(3+) are not included. The optical glass further has a refractive index (nd) of 1.58 to 1.60 and an Abbe number (d) of 67 to 69.


Patent
Sumita Optical Glass Inc. | Date: 2011-06-29

An object of the present invention is to provide optical glass having improved glass-devitrification resistance and moldability without causing reduction in refractive index, and also provide an optical element using the optical glass as a raw material. Specifically, the present invention provides an optical glass containing components of, by mol%: B_(2)O_(3): over 60% through 75%; Bi_(2)O_(3): 24% to 39%; La_(2)O_(3): 7% or lower; Gd_(2)O_(3): 7% or lower; and ZrO_(2): 7% or lower.

Loading Sumita Optical Glass Inc collaborators
Loading Sumita Optical Glass Inc collaborators