Optical element, light diffusing element, and image display apparatus
    1.
    发明授权
    Optical element, light diffusing element, and image display apparatus 有权
    光学元件,光漫射元件和图像显示装置

    公开(公告)号:US09036261B2

    公开(公告)日:2015-05-19

    申请号:US13972027

    申请日:2013-08-21

    IPC分类号: G02B5/02 F21V5/00 G09G5/10

    摘要: An optical element using visible light from wavelengths λS to λL (λL>λS), is formed of a translucent material having refractive indexes nS and nL, respectively, for light having the wavelengths λS and λL. The optical element includes an incident face; an exit face; and a micro convexo-concave structure used as an anti-reflection structure (ARS), being formed at least one of the incident face and the exit face. An average distance P between adjacent micro convexo-concave structures satisfies condition (1) P≦0.8·λS/nS. Dimensionless parameters mS and mL satisfy condition (2) 0.8≦mS≦1.1 and condition (3) 0.8≦mL≦1.1. The parameters mS and mL, an average height H, the wavelengths λS and λL, and the refractive indexes nS and nL of the micro convexo-concave structure satisfy condition (4) mS·λS/(2·nS)≦H≦mL·λL/(2·nL).

    摘要翻译: 使用波长λS〜λL(λL>λS)的可见光的光学元件分别由具有波长λS和λL的光的折射率nS和nL的半透明材料形成。 光学元件包括入射面; 出口面 以及用作防反射结构(ARS)的微型凹凸结构,形成入射面和出射面中的至少一个。 相邻的微凹凸结构之间的平均距离P满足条件(1)P≦̸ 0.8·λS/ nS。 无量纲参数mS和mL满足条件(2)0.8≦̸ mS≦̸ 1.1和条件(3)0.8≦̸ mL≦̸ 1.1。 微凹凸结构的参数mS和mL,平均高度H,波长λS和λL以及折射率nS和nL满足条件(4)mS·λS/(2·nS)≦̸ H≦̸ mL ·λL/(2·nL)。

    OPTICAL ELEMENT, LIGHT DIFFUSING ELEMENT, AND IMAGE DISPLAY APPARATUS
    2.
    发明申请
    OPTICAL ELEMENT, LIGHT DIFFUSING ELEMENT, AND IMAGE DISPLAY APPARATUS 有权
    光学元件,光扩散元件和图像显示设备

    公开(公告)号:US20140071026A1

    公开(公告)日:2014-03-13

    申请号:US13972027

    申请日:2013-08-21

    IPC分类号: F21V5/00 G09G5/10

    摘要: An optical element using visible light from wavelengths λS to λL (λL>λS), is formed of a translucent material having refractive indexes nS and nL, respectively, for light having the wavelengths λS and λL. The optical element includes an incident face; an exit face; and a micro convexo-concave structure used as an anti-reflection structure (ARS), being formed at least one of the incident face and the exit face. An average distance P between adjacent micro convexo-concave structures satisfies condition (1) P≦0.8·λS/nS. Dimensionless parameters mS and mL satisfy condition (2) 0.8≦mS≦1.1 and condition (3) 0.8≦mL≦1.1. The parameters mS and mL, an average height H, the wavelengths λS and λL, and the refractive indexes nS and nL of the micro convexo-concave structure satisfy condition (4) mS·λS/(2·nS)≦H≦mL·λL/(2·nL).

    摘要翻译: 使用波长λS到λL(λL>λS)的可见光的光学元件分别由具有λS和λL波长的光的折射率为nS和nL的半透明材料形成。 光学元件包括入射面; 出口面 以及用作防反射结构(ARS)的微型凹凸结构,形成入射面和出射面中的至少一个。 相邻的微凹凸结构之间的平均距离P满足条件(1)P @0..8λ/λ。 无量纲参数mS和mL满足条件(2)0.8 @ mS @ 1.1和条件(3)0.8 @ mL @ 1.1。 微凸凹结构的参数mS和mL,平均高度H,波长λS和λL以及折射率nS和nL满足条件(4)mS·λS/(2·nS)@ H @ mL· lambdaL /(2·nL)。

    Optical element, mold, and optical device
    3.
    发明授权
    Optical element, mold, and optical device 有权
    光学元件,模具和光学装置

    公开(公告)号:US09500778B2

    公开(公告)日:2016-11-22

    申请号:US14163224

    申请日:2014-01-24

    IPC分类号: G02B1/118 G02B13/14

    CPC分类号: G02B1/118 G02B13/14

    摘要: An optical element having an antireflection effect includes an incident plane and an emission plane and a conical microstructure formed on at least one plane of the incident plane and the emission plane. The conical microstructure includes a first structure formed of a plurality of conical microprojections with an average height H1 and a second structure formed of a plurality of conical microrecesses with an average height H2. The average height H1 satisfies an inequality H1≦1/3*λ/n and the average height H2 satisfies an inequality H2≦1/3*λ/n. An average pitch P between the first structure and the second structure satisfies following conditions: H1/2≦P≦1/3*λ/n, and H2/2≦P≦1/3*λ/n, in which the use wavelength is defined as λ and the refractive index relative to the use wavelength is n.

    摘要翻译: 具有防反射效果的光学元件包括在入射面和发射面的至少一个平面上形成的入射面和发射面以及圆锥形微结构。 圆锥形微结构包括由具有平均高度H1的多个锥形微喷射体形成的第一结构和由具有平均高度H2的多个锥形微过程形成的第二结构。 平均高度H1满足不等式H1≤1/ 3 *λ/ n,平均高度H2满足不等式H2≤1/ 3 *λ/ n。 第一结构和第二结构之间的平均间距P满足以下条件:H1 /2≤P≤1/ 3 *λ/ n,H2 /2≤P≤1/ 3 *λ/ n,其中使用波长 被定义为λ,相对于使用波长的折射率为n。

    Laser device and internal combustion engine

    公开(公告)号:US10559942B2

    公开(公告)日:2020-02-11

    申请号:US15919254

    申请日:2018-03-13

    摘要: A laser device and an internal combustion engine. The laser device includes a light source configured to emit light, an optical system configured to concentrate the light emitted from the light source, a housing configured to accommodate the optical system, and a window disposed to the housing, to which the light passed through the optical system is incident. The window includes an optical window through which the light exited from the optical system passes, an optical window holding member configured to hold the optical window, a joint configured to join the optical window to the optical window holding member, and a protective layer disposed to a face of the joint. The internal combustion engine includes the laser device according to claim, and a combustion chamber configured to burn fuel to produce inflammable gas. In the internal combustion engine, the fuel is ignited by the laser device.