公开(公告)号：US20180347776A1

公开(公告)日：2018-12-06

申请号：US15925724

申请日：2018-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Matsuda ,  Masahiro Kasano

IPC: F21S41/26 ,  F21S41/275 ,  F21S41/143

CPC classification number: F21S41/26 ,  F21S41/143 ,  F21S41/275 ,  F21Y2115/10 ,  F21Y2115/20

Abstract: A small and thin lighting device with high efficiency and good design and a headlight for a vehicle. A lighting device includes a first lens taking light generated by a light emitting device and emitting the light, and a second lens taking an emitted light from the first lens and emitting the light, in which the second lens is an anamorphic lens in which curvatures are different in a vertical direction and a right and left direction and a center of a lens surface in the vertical direction of the second lens is positioned in an upper direction with respect to an optical axis of the first lens. A headlight for a vehicle including the plural lighting devices is forming a low beam light distribution by superimposing lights from respective lighting devices for irradiation of the center, right and left in a horizontal direction respectively.

公开(公告)号：US09217874B2

公开(公告)日：2015-12-22

申请号：US14584319

申请日：2014-12-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahiro Kasano ,  Yasuhiro Tanaka

IPC: G02F1/135 ,  G02B27/22 ,  G02F1/29 ,  G02F1/137 ,  G02B27/26 ,  G02F1/1343 ,  G02F1/133 ,  G02B27/28

CPC classification number: G02B27/2214 ,  G02B27/22 ,  G02B27/2221 ,  G02B27/26 ,  G02B27/28 ,  G02F1/13306 ,  G02F1/134309 ,  G02F1/1347 ,  G02F1/137 ,  G02F1/29 ,  G02F2001/134381 ,  G02F2001/294

Abstract: An image display apparatus according to the present disclosure includes: a display panel having at least, first pixels that display a first parallax image and second pixels that display a second parallax image; and an image conversion element. The image conversion element includes: a plurality of first electrodes arranged at a predetermined pitch; a second electrode; and a liquid crystal layer. The image display apparatus according to the present disclosure simultaneously satisfies the following conditions, wherein f is a distance from the liquid crystal layer to the first pixels or the second pixels, r is a length equal to ½ of an arrangement pitch of the first electrodes, Δn is a birefringence of the liquid crystal molecules, P is an arrangement pitch of the first pixels and the second pixels, and d is a thickness of the liquid crystal layer: f ≥ 5 ⁢ P ( 1 ) Δ ⁢ ⁢ n

Abstract translation: 根据本公开的图像显示装置包括：至少具有显示第一视差图像的第一像素和显示第二视差图像的第二像素的显示面板; 和图像转换元件。 图像转换元件包括：以预定间距排列的多个第一电极; 第二电极; 和液晶层。 根据本公开的图像显示装置同时满足以下条件，其中f是从液晶层到第一像素或第二像素的距离，r是等于第一电极的排列间距的1/2的长度， ＆Dgr; n是液晶分子的双折射，P是第一像素和第二像素的排列间距，d是液晶层的厚度：f≥5P（1）＆Dgr; ⁢n