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    Optical device, optical element, and image display device
    4.
    发明授权
    Optical device, optical element, and image display device 有权
    光学装置，光学元件和图像显示装置

    公开(公告)号：US09041041B2

    公开(公告)日：2015-05-26

    申请号：US14370886

    申请日：2012-10-03

    Applicant: NEC Corporation

    Inventor： Masanao Natsumeda ,  Masao Imai ,  Shin Tominaga ,  Naofumi Suzuki ,  Mizuho Tomiyama ,  Yuji Ohno

    IPC: H01L21/00 ,  G02B5/00 ,  G03B21/20 ,  F21V9/14 ,  G02B5/30 ,  H01L33/00 ,  G02B27/10 ,  G02B27/14

    CPC classification number: G02B5/008 ,  F21V9/14 ,  G02B5/30 ,  G02B27/102 ,  G02B27/141 ,  G03B21/2006 ,  G03B21/2073 ,  H01L33/0004

    Abstract: Disclosed are an optical device, an optical element, and an image display device that can achieve an improved absorption efficiency of excitation light. The optical device includes: a light-emitting element; a carrier generation layer on which light from the light-emitting element is incident and in which carriers are generated; a plasmon excitation layer that excites a plasmon, stacked on the upper side of the carrier generation layer and has a plasma frequency higher than a frequency of light generated when the carrier generation layer is excited by the light from the light-emitting element; and an exit layer that converts light or a surface plasmon generated on a surface of the plasmon excitation layer into light having a predetermined exit angle and from which the light having the predetermined exit angle exits. The optical device further includes a polarization conversion layer on the lower side of the carrier generation layer.

    Abstract translation: 公开了能够实现提高的激发光的吸收效率的光学装置，光学元件和图像显示装置。 光学装置包括：发光元件; 来自发光元件的光入射并且其中产生载流子的载流子产生层; 激发等离子体激元层，其堆叠在载体产生层的上侧，并且具有比当载流子产生层被来自发光元件的光激发时产生的光的频率高的等离子体频率; 以及将在等离子激元激发层的表面上产生的光或表面等离子体激元转换成具有预定出射角的光的出射层，并且具有预定出射角的光离开该出射层。 该光学器件还包括位于载体产生层下侧的偏振转换层。

    OPTICAL ELEMENT, LIGHTING DEVICE, AND IMAGE DISPLAY DEVICE
    5.
    发明申请
    OPTICAL ELEMENT, LIGHTING DEVICE, AND IMAGE DISPLAY DEVICE 审中-公开
    光学元件，照明装置和图像显示装置

    公开(公告)号：US20150109587A1

    公开(公告)日：2015-04-23

    申请号：US14403471

    申请日：2012-12-28

    Applicant: NEC Corporation

    Inventor： Masanao Natsumeda ,  Masao Imai ,  Shin Tominaga ,  Naofumi Suzuki ,  Mizuho Tomiyama ,  Yuji Ohno

    IPC: G02B5/00 ,  G03B21/20

    CPC classification number: G02B5/008 ,  G02B6/005 ,  G02F1/133615 ,  G02F1/133617 ,  G02F2001/133607 ,  G02F2203/10 ,  G03B21/2006

    Abstract: Provided are an optical element, a lighting device, and an image display device, with which the absorption efficiency and the luminance of the excitation light can be improved. This optical element (40) is equipped with: a light-emitting layer (103) that generates excitation light; a plasmon excitation layer (105) stacked on the light-emitting layer (103) and having a higher plasma frequency than the light-emitting frequency of the light-emitting layer (103); an emission layer (207) that emits light by converting the surface plasmons or the light generated at the upper surface of the plasmon excitation layer (105) to light having a predetermined emission angle; and a metal layer (102) stacked on the underside of the light-emitting layer (103).

    Abstract translation: 提供了可以提高吸收效率和激发光的亮度的光学元件，照明装置和图像显示装置。 该光学元件（40）配备有：产生激发光的发光层（103） 层叠在所述发光层（103）上并具有比所述发光层（103）的发光频率高的等离子体频率的等离子体激元层（105）。 通过将等离子体激元层（105）的上表面产生的表面等离子体或光转换为具有规定的发光角的光而发光的发光层（207） 以及层叠在发光层（103）的下侧的金属层（102）。

    Required time prediction apparatus, control method, and non-transitory storage medium
    6.
    发明授权
    Required time prediction apparatus, control method, and non-transitory storage medium 有权

    公开(公告)号：US11847592B2

    公开(公告)日：2023-12-19

    申请号：US17792025

    申请日：2020-01-22

    Applicant: NEC Corporation

    Inventor： Hirofumi Inoue ,  Shin Tominaga ,  Shigeki Shinoda ,  Yuzo Senda ,  Shigeru Sekine

    IPC: G06Q10/04 ,  G06Q50/30

    CPC classification number: G06Q10/04 ,  G06Q50/30

    Abstract: A required time prediction apparatus (2000) acquires utilization facility information and assumed date and time information. The utilization facility information is information enabling to determine a departure facility and a destination facility. The assumed date and time information is information enabling to determine an assumed departure date and time assuming departure from the departure facility or an assumed arrival date and time assuming arrival at the destination facility. The apparatus (2000) estimates a waiting time at each facility being present between the departure facility and the destination facility, regarding a case of assuming departure from the departure facility at the assumed departure date and time, or a case of assuming arrival at the destination facility at the assumed arrival date and time. Then, the apparatus (2000) computes, based on the estimated waiting time, a predicted required time from departure from the departure facility to arrival at the destination facility.

    OPTICAL ELEMENT, OPTICAL DEVICE, AND DISPLAY DEVICE
    9.
    发明申请
    OPTICAL ELEMENT, OPTICAL DEVICE, AND DISPLAY DEVICE 审中-公开
    光学元件，光学器件和显示器件

    公开(公告)号：US20150022784A1

    公开(公告)日：2015-01-22

    申请号：US14382817

    申请日：2013-03-04

    Applicant: NEC CORPORATION

    Inventor： Shin Tominaga ,  Masao Imai ,  Masanao Natsumeda

    IPC: G02B5/30 ,  H04N9/31

    CPC classification number: G02B5/3033 ,  G02B5/3083 ,  G03B21/2073 ,  H04N9/3167

    Abstract: An optical element of the present invention has a first dielectric layer, a second dielectric layer and a first metal layer arranged between the first dielectric layer and the second dielectric layer, and is characterized that the first dielectric layer has different refractive indices in a first direction, and a second direction intersecting with the first direction.

    Abstract translation: 本发明的光学元件具有第一介电层，第二介电层和布置在第一介电层和第二介电层之间的第一金属层，其特征在于，第一介电层在第一方向上具有不同的折射率 ，和与第一方向交叉的第二方向。

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