Patent application number | Description | Published |
20120065051 | OPTICAL GLASS FOR MOLD PRESS FORMING - The invention provides an optical glass for press molding which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having an excellent visible light transmittance; and (5) it has excellent resistance to devitrification during preparation of a preform. The optical glass for press molding has a refractive index nd of 1.925 or more, an Abbe's number νd of 10 to 30, and a glass composition, in % by mass, of 20 to 80% Bi | 03-15-2012 |
20130090225 | OPTICAL GLASS AND OPTICAL ELEMENT - Provided is an optical glass which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having a superior visible light transmittance; and (5) it has superior resistance to devitrification during preparation of a preform. The optical glass has a refractive index nd of 2.0 or more, an Abbe's number vd of 20 or less, a glass transition point of 450° C. or below, and a glass composition, in % by mass, of 70 to 90% Bi | 04-11-2013 |
20130172168 | OPTICAL GLASS - Provided is an optical glass that has desired optical properties, superior resistance to devitrification, and superior mass productivity. An optical glass is made of a SiO | 07-04-2013 |
20140045675 | OPTICAL GLASS FOR MOLD PRESS FORMING - The invention provides an optical glass for press molding which can satisfy all of the following requirements: (1) it contains no environmentally undesirable components; (2) it can easily achieve a low glass transition point; (3) it has a high refractive index and high dispersion; (4) it can easily provide a glass having an excellent visible light transmittance; and (5) it has excellent resistance to devitrification during preparation of a preform. The optical glass for press molding has a refractive index nd of 1.925 or more, an Abbe's number νd of 10 to 30, and a glass composition, in % by mass, of 20 to 80% Bi | 02-13-2014 |
20140144505 | GLASS USED IN OPTICAL ELEMENT FOR CONCENTRATING PHOTOVOLTAIC POWER GENERATION APPARATUS, OPTICAL ELEMENT FOR CONCENTRATING PHOTOVOLTAIC POWER GENERATION APPARATUS USING GLASS, AND CONCENTRATING PHOTOVOLTAIC POWER GENERATION APPARATUS - Provided are a glass which is used in an optical element for a concentrating photovoltaic power generation apparatus, has excellent weather resistance, and can be easily processed into a complicated shape; an optical element for a concentrating photovoltaic power generation apparatus using the glass; and a concentrating photovoltaic power generation apparatus. The glass used in an optical element for a concentrating photovoltaic power generation apparatus contains, in % by mass, 30 to 80% SiO | 05-29-2014 |
20140338748 | OPTICAL ELEMENT FOR LIGHT-CONCENTRATING SOLAR POWER GENERATION DEVICE, METHOD FOR PRODUCING SAME, AND LIGHT-CONCENTRATING SOLAR POWER GENERATION DEVICE - Provided is an optical element for a light-concentrating solar power generation device having excellent weather resistance and also excellent thermal shock resistance and crack resistance, a method for producing the same, and a light-concentrating solar power generation device including the optical element. An optical element for a light-concentrating solar power generation device, the optical element being made of a glass material having a compressive stress at a surface thereof. | 11-20-2014 |