公开(公告)号：US09982864B2

公开(公告)日：2018-05-29

申请号：US15109451

申请日：2015-02-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Atsushi Fukui ,  Shohroh Mochida ,  Takayuki Yamaguchi ,  Tomoyuki Ogata

IPC: B60Q1/00 ,  F21S8/10 ,  G02B19/00

CPC classification number: F21S41/265 ,  F21S41/275 ,  F21S41/322 ,  F21S43/14 ,  F21S43/26 ,  F21S43/315 ,  F21S43/40 ,  G02B19/0061

Abstract: An illumination apparatus including: multiple LEDs; and a lens unit that is placed correspondingly to the respective LEDs, wherein the lens unit includes a transmission lens, a first total-reflection lens, and a second total-reflection lens, wherein an incidence surface and an emission surface of the transmission lens, as well as incidence surfaces, emission surfaces and total-reflection surfaces of the first total-reflection lens and the second total-reflection lens are two-axis anamorphic aspherical surfaces, a microlens array is formed on at least one of the incidence surface and the emission surface of the transmission lens, a microlens array is formed on at least one of the emission surfaces, the total-reflection surfaces and the incidence surfaces of the first total-reflection lens and the second total-reflection lens, and the microlens arrays each have a structure in which microlenses are periodically arrayed, and are arrayed along the vertical and horizontal directions of the illumination apparatus.

公开(公告)号：US09857044B2

公开(公告)日：2018-01-02

申请号：US14787466

申请日：2014-07-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Atsushi Fukui ,  Shohroh Mochida ,  Takayuki Yamaguchi ,  Tomoyuki Ogata

IPC: G02B3/06 ,  F21S8/10 ,  B60Q1/26 ,  B60Q1/28 ,  G02B3/04 ,  G02B19/00 ,  G02B3/00

CPC classification number: F21S48/2212 ,  B60Q1/2653 ,  B60Q1/28 ,  B60Q2400/30 ,  F21S43/14 ,  F21S43/15 ,  F21S43/26 ,  F21S43/315 ,  F21S43/40 ,  G02B3/005 ,  G02B3/04 ,  G02B3/06 ,  G02B19/0009 ,  G02B19/0066

Abstract: An illumination apparatus includes an LED, a first lens unit provided above the LED and a cylindrical lens provided above the first lens unit. The first lens unit receives light from the LED and emits the light toward the cylindrical lens. The cylindrical lens emits the light to the outside.

公开(公告)号：US09903996B2

公开(公告)日：2018-02-27

申请号：US15328009

申请日：2015-06-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Atsushi Fukui ,  Keizou Matsumura ,  Takayuki Yamaguchi

IPC: F21V7/04 ,  F21V8/00 ,  G09F13/16

CPC classification number: G02B6/0036 ,  G02B6/00 ,  G02B6/003 ,  G02B6/0031 ,  G02B6/006 ,  G02B6/0068 ,  G02B6/0083 ,  G02B6/0088 ,  G09F13/14 ,  G09F13/16 ,  G09F13/18

Abstract: A light guide plate display device includes a light guide plate, a plurality of light source devices, and a plurality of prisms. The light guide plate includes a display face and a plurality of end faces, and is formed of a light transmitting material. The light source devices are provided along respective end faces of the light guide plate, and radiate light from the end face toward an inside of the light guide plate. The prisms are formed inside the light guide plate. The prisms respectively have a plurality of side faces which face the respective light source devices. The respective side faces are inclined at least in two stages of a transmitting inclined face which transmits light radiated from the light source device, and a reflecting inclined face which reflects the light radiated from the light source device, and outputs the light to the display face, in a thickness direction of the light guide plate.