公开(公告)号：US09656904B2

公开(公告)日：2017-05-23

申请号：US14895290

申请日：2014-06-03

Applicant: HOYA CORPORATION

Inventor： Yuki Shiota

IPC: C03C3/247 ,  C03B23/03 ,  C03C3/23

CPC classification number: C03C3/247 ,  C03B23/03 ,  C03C3/23

Abstract: An aspect of the present invention relates to an optical glass which contains P5+, Al3+, Ba2+, and R2+ (R2+ is one or more selected from the group including of Mg2+, Ca2+, Sr2+, and Zn2+) as essential cationic components and O2− and F− as essential anionic components, the total content of P5+, Al3+, Ba2+, R2+, and R′+ (R′+ is one or more selected from the group including of Li+, Na+, and K+) in the cationic component being 86% or higher, the Al3+/P5+ molar ratio being 0.70 or higher, the Al3+/(Ba2++R2+) molar ratio being 0.40 or higher, and the Ba2+/(Ba2++R2+) molar ratio being in the range of 0.50 to 0.85, and which has an Abbe's number νd of 72 or larger but less than 80, the refractive index nd and the Abbe's number νd satisfying: nd≧2.179−0.0085×νd.

公开(公告)号：US08580466B1

公开(公告)日：2013-11-12

申请号：US13917338

申请日：2013-06-13

Applicant: Hoya Corporation

Inventor： Yuki Shiota ,  Osamu Nozawa

IPC: G03F1/00 ,  G03C5/00

CPC classification number: G03F1/26 ,  G03F1/32 ,  G03F1/34 ,  G03F1/54

Abstract: A photomask blank includes a transparent substrate and a film containing at lease two layers formed on the transparent substrate, the two layers being a first layer with a phase difference Δθ1 and a second layer with a phase difference Δθ2. The phase difference Δθ1 is a phase difference between a light transmitted through the first layer and a light transmitted through an air distance equal to a thickness of the first layer, and the phase difference Δθ2 is a phase difference between a light transmitted through the second layer and a light transmitted through an air distance equal to a thickness of the second layer. A phase difference of the film containing at least two layers is from −30° to +30°. The first layer contains a material not to be etched during etching of the transparent substrate.

Abstract translation: 光掩模坯料包括透明基板和形成在透明基板上的至少两层的膜，两层是具有相位差Deltatheta1的第一层和具有相位差Deltatheta2的第二层。 相位差Deltatheta1是透过第一层的光和透过等于第一层的厚度的空气距离的光之间的相位差，相位差Deltatheta2是透过第二层的光之间的相位差 透过空气距离等于第二层厚度的光。 含有至少两层的膜的相位差为-30°〜+ 30°。 第一层包含在蚀刻透明衬底期间不被蚀刻的材料。

公开(公告)号：US12297146B2

公开(公告)日：2025-05-13

申请号：US17788459

申请日：2020-12-25

Applicant: HOYA CORPORATION

Inventor： Masashi Kaneko ,  Yuki Shiota

IPC: C03C4/08 ,  C03C3/17 ,  C03C3/247 ,  G02B5/20

Abstract: The near-infrared absorbing glass contains at least, as constituent ions, P ions; Cu ions; O ions; one or more ions selected from the group consisting of Li ions, Na ions and K ions; and one or more ions selected from the group consisting of Mg ions, Ca ions, Sr ions and Ba ions, wherein, in a glass composition expressed in cation %, the content of Cu ions is 15.0 cation % or lower; the content of P ions is 55.0 cation % or lower; and a cation ratio of the total content of Al ions and P ions relative to the total content of Mg ions, Ca ions, Sr ions, Ba ions, Zn ions and Cu ions ((Al ions+P ions)/(Mg ions+Ca ions+Sr ions+Ba ions+Zn ions+Cu ions)) is 5.300 or lower.

公开(公告)号：US20150183682A1

公开(公告)日：2015-07-02

申请号：US14414249

申请日：2013-07-18

Applicant: HOYA CORPORATION

Inventor： Yoshitake Tanno ,  Yuki Shiota

IPC: C03C3/247

CPC classification number: C03C3/247 ,  G02B1/02

Abstract: Provided are an optical fluorophosphate glass having excellent optical characteristics and also excellent processability, a glass material for press molding and an optical element each including the glass, and methods for producing the glass material and the optical element. The optical glass includes P5+ as a cationic component and O2− and F− as anionic components, wherein the optical glass has a content of F− of 40 anionic % or less, an abrasion factor FA of 420 or higher, and a fragility index value B of 4500 μm−1/2 or lower.

Abstract translation: 提供了具有优异的光学特性和优异的加工性的光学氟磷酸盐玻璃，用于压制成型的玻璃材料和各自包括玻璃的光学元件，以及用于制造玻璃材料和光学元件的方法。 光学玻璃包括作为阳离子成分的P5 +和作为阴离子成分的O1-和F-，其中光学玻璃的含量为40-阴离子％以下，磨损因子FA为420以上，脆性指数值 B为4500μm-1/2以下。

公开(公告)号：US09481600B2

公开(公告)日：2016-11-01

申请号：US14414249

申请日：2013-07-18

Applicant: HOYA CORPORATION

Inventor： Yoshitake Tanno ,  Yuki Shiota

IPC: C03C3/247 ,  G02B1/02

CPC classification number: C03C3/247 ,  G02B1/02

Abstract: Provided are an optical fluorophosphate glass having excellent optical characteristics and also excellent processability, a glass material for press molding and an optical element each including the glass, and methods for producing the glass material and the optical element. The optical glass includes P5+ as a cationic component and O2− and F− as anionic components, wherein the optical glass has a content of F− of 40 anionic % or less, an abrasion factor FA of 420 or higher, and a fragility index value B of 4500 μm−1/2 or lower.

Abstract translation: 提供了具有优异的光学特性和优异的加工性的光学氟磷酸盐玻璃，用于压制成型的玻璃材料和各自包括玻璃的光学元件，以及用于制造玻璃材料和光学元件的方法。 光学玻璃包括作为阳离子成分的P5 +和作为阴离子成分的O1-和F-，其中光学玻璃的含量为40-阴离子％以下，磨损因子FA为420以上，脆性指数值 B为4500μm-1/2以下。