Agc Inc.

Asahi Glass Company, Limited

Tatsuo Nagashima

Tetsuya Nakashima

Naoki Sugimoto

Kei Maeda

Kensuke Nagai

Shinichi Amma

Kenji Kitaoka

Seiki Ohara

Tomoharu Hasegawa

Hiroyuki Yamamoto

Yuki Kondo

Hiroshi Yamakawa

Setsuro Ito

Jun Endo

Takafumi Inoue

Yutaka Kitajima

Shinya Tahara

Takahiro Mashimo

Setsuhisa Tanabe

Takuji Oyama

Manuel Diaz Reyes

Hiroyasu Miyazawa

The present invention aims to provide a vehicular exterior member that is excellent in strength and cost, and sufficiently ensures a viewing field of sharpness of a thermal image obtained by a far-infrared camera. A vehicular exterior member that includes a light blocking region and is configured to be attached to a vehicle equipped with a far-infrared camera. The vehicular exterior member further includes, in the light blocking region, a far-infrared ray transmitting region having an opening and a far-infrared ray transmitting member disposed in the opening. An average transmittance of far-infrared rays having a wavelength ranging from 8 to 13 μm of the far-infrared ray transmitting member is equal to or larger than 25%. A length of the longest straight line in straight lines connecting any desired two points on a surface on a vehicle exterior side of the far-infrared ray transmitting member is equal to or smaller than 80 mm. A diameter of the largest circle in circles formed in a projected shape obtained by projecting the far-infrared ray transmitting member in an optical axis direction of the far-infrared camera is equal to or larger than 12 mm. An average thickness of the far-infrared ray transmitting member is equal to or larger than 1.5 mm.

Vehicular exterior member and far-infrared camera equipped vehicular exterior member

In glass for vehicles including a light blocking region, a far-infrared ray transmission region is formed in the light blocking region, the far-infrared ray transmission region being provided with an opening and a far-infrared ray transmission member disposed in the opening, and the glass for vehicles and the far-infrared ray transmission member are bonded to each other with a frame member interposed therebetween. Regarding the frame member, where a length of the longest straight line among straight lines each connecting optional two points on an inner circumference on a side facing the opening in a surface on a vehicle exterior side is D, and a thickness of a portion projecting from a surface on the vehicle exterior side of the glass for vehicles is D/t is larger than 1250, and t is equal to or smaller than 2.5 mm.

Glass for vehicles, frame member, and manufacturing method for glass for vehicles

Glass () for vehicles includes a light blocking region (A) in which a far-infrared ray transmission region (B) provided with an opening and a far-infrared ray transmission member arranged in the opening, and a visible light transmission region (C) transmitting visible light are formed. The opening is formed between an upper edge part () of the glass () and a first position (P) in a first direction from the upper edge part () toward a lower edge part () of the glass (), the first position (P) is a position at which a distance from the upper edge part () is 30% of a length from the upper edge part () to the lower edge part (), and between a second position (P) and a third position (P) in a second direction from a side edge part () toward a side edge part () of the glass () for vehicles. A length (L) in the second direction from the second position (P) to the third position (P) is 55% of a length (L) from the side edge part () to the side edge part (), and a length of the longest straight line among straight lines connecting optional two points within a surface on a vehicle exterior side is equal to or smaller than 80 mm.

Glass for vehicles and camera unit

An optical glass has a refractive index (n) of 1.55 or more. A difference (Tf−Tg) between a fictive temperature (Tf) and a glass transition temperature (Tg) of the optical glass is 0° C. or more. The optical glass may have a crack initiation load L of 350 mN or more.

Optical glass, optical member, and wearable device

An optical member includes a transparent substrate containing at least one substance selected from glass, a glass ceramic, silicon, and sapphire, and having an infrared high-transmittance region in which an optical transmittance is 78% or more in a wavelength band of 700 nm to 1800 nm; and an optical interference film disposed on a main surface of the transparent substrate corresponding to the infrared high-transmittance region, wherein a transmittance of light, of the optical member, of at least one wavelength λin the wavelength band of 700 nm to 1800 nm in a region of the optical member corresponding to the infrared high-transmittance region of the transparent substrate has a minimum value of 86.5% or more and has a difference between the minimum value and a maximum value of 9% or less in a range where an incidence angle is from 0 degrees to 60 degrees.

Optical member

The present invention relates to an optical glass having refractive index of 1.55 or more and having chromaticity b* that satisfies b*≥4.8 under A light source in a CIELab representation. The present invention also relates to an optical glass having refractive index of 1.55 or more, having a ratio (b*/|a*|) of chromaticity b* to an absolute value of chromaticity a* that satisfies b*/|a*|≥0.55 under A light source in a CIELab representation, and satisfying b*≥0.1.

Optical glass, optical member, and optical device

An optical glass has a refractive index (n) of 1.64 or more. A P value represented by the following formula (1) is in a range of 7.0&#x3c;P value&#x3c;10.0: P value=log(A&#xd7;P+A&#xd7;P+A&#xd7;P+A&#xd7;P) (1). A, A, Aand Aare absorbances of the optical glass with a plate thickness of 10 mm at a wavelength of 450 nm, 550 nm, 650 nm and 750 nm, respectively. P, P, Pand Pare radiances of light having a wavelength of 450 nm, 550 nm, 650 nm and 750 nm, respectively, at 1,300&#xb0; C. according to Planck's radiation law. All of internal transmittances in terms of a 10-mm thickness at wavelengths of 450 nm, 550 nm, 650 nm and 750 nm are 91% or more.

Optical glass and optical component

There is provided an optical glass having high infrared transmittance and being useful as an on-vehicle infrared sensor and the like. An optical glass including, in expression of atomic %: Ge+Ga; 6% to 30%; S+Se+Te; 50% to 85%; and Ti; 0.001% to 0.5%, wherein a wavelength (&#x3bb;) at a long-wavelength side end in which infrared transmittance in a glass plate of the optical glass converted to a thickness of 1 mm becomes 10% is 12 &#x3bc;m or more.

Optical glass

Glass for a display device, which comprises, as represented by mole percentage based on the following oxides, from 61 to 72% of SiO, from 8 to 17% of AlO, from 6 to 18% of LiO, from 2 to 15% of NaO, from 0 to 8% of KO, from 0 to 6% of MgO, from 0 to 6% of CaO, from 0 to 4% of TiO, and from 0 to 2.5% of ZrO, and having a total content RO of LiO, NaO and KO of from 15 to 25%, a ratio LiO/RO of the LiO content to RO of from 0.35 to 0.8, and a total content of MgO and CaO of from 0 to 9%.

Glass for display device and glass plate

To provide glass for a data storage medium substrate, whereby high heat resistance can be obtained. Glass for a data storage medium substrate, which comprises, as represented by mol percentage based on the following oxides, from 55 to 70% of SiO, from 2.5 to 9% of AlO, from 0 to 10% of MgO, from 0 to 7% of CaO, from 0.5 to 10% of SrO, from 0 to 12.5% of BaO, from 0 to 2.5% of TiO, from 0.5 to 3.7% of ZrO, from 0 to 2.5% of LiO, from 0 to 8% of NaO, from 2 to 8% of KO and from 0.5 to 5% of LaO, provided that the total content of AlOand ZrO(AlO+ZrO) is at most 12%, and the total content of LiO, NaO and KO (RO) is at most 12%.

Glass for data storage medium substrate, glass substrate for data storage medium and magnetic disk

A glass for an information recording medium substrate, which comprises, as represented by mol % based on the following oxides, from 61 to 72% of SiO, from 3 to 11% of AlO, from 0 to 14.3% of LiO, from 0 to 22% of NaO, from 0 to 22% of KO, from 4 to 13% of MgO, from 0 to 6% of TiOand from 0 to 5% of ZrO, provided that the total content of LiO, NaO and KO (RO) is from 10 to 22%, and (a) the ratio of the content of LiO to RO (LiO/RO) is at most 0.52, (b) the ratio of the content of NaO to RO (NaO/RO) is at least 0.35, or (c) the ratio of the content of KO to RO (KO/RO) is at least 0.45.

Glass for information recording medium substrate, glass substrate for information recording medium and magnetic disk

To provide a substrate glass for data storage medium which is excellent in weather resistance even when no additional treatment such as chemical reinforcement treatment is applied and less susceptible to a whitening phenomenon and which has a glass transition temperature of at least 680&#xb0; C. and is excellent in acid resistance. A substrate glass for data storage medium, which comprises, as represented by mass %, from 47 to 60% of SiO, from 8 to 20% of AlO, from 0 to 8% of MgO, from 0 to 6% of CaO, from 1 to 18% of SrO, from 0 to 13% of BaO, from 1 to 6% of TiO, from 1 to 5% of ZrO, from 2 to 8% of NaO and from 1 to 15% of KO and which has a glass transition temperature of at least 680&#xb0; C.

Substrate glass for data storage medium and glass substrate

A non-lead optical glass consisting essentially of, as represented by mol %, from 45 to 75% of BiO, from 12 to 45% of BO, from 1 to 20% of GaO, from 1 to 20% of InO, from 0 to 20% of ZnO, from 0 to 15% of BaO, from 0 to 15% of SiO+AlO+GeO, from 0 to 15% of MgO+CaO+SrO, from 0 to 10% of SnO+TeO+TiO+ZrO+TaO+YO+WOand from 0 to 5% of CeO, wherein GaO+InO+ZnO&#x2267;5%. An optical fiber comprising the above non-lead optical glass as a core.

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Chiyoda-ku, Japan

Tatsuo Nagashima