公开(公告)号：US20230044960A1

公开(公告)日：2023-02-09

申请号：US17769563

申请日：2020-10-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yurika TSUBAKINO ,  Hideki WADA

IPC: G02B5/22 ,  G02C7/10

Abstract: An optical filter (1) in which, in a transmission spectrum of the optical filter, when: a minimum value of transmissivity for a wavelength range of from 400 nm to 450 nm, inclusive, is defined as first minimum value MIN1; a minimum value of transmissivity for a wavelength range of from 525 nm to 595 nm, inclusive, is defined as second minimum value MIN2; a maximum value of transmissivity for a wavelength range of from 450 nm to 525 nm, inclusive, is defined as first maximum value MAX1; and a maximum value of transmissivity for a wavelength range of from 595 nm to 600 nm, inclusive, is defined as second maximum value MAX2, first minimum value MAX1 and second minimum value MIN1 are each at most ½ a smaller one of first maximum value MAX1 and second maximum value MAX2.

公开(公告)号：US20200004051A1

公开(公告)日：2020-01-02

申请号：US16441407

申请日：2019-06-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideki WADA ,  Tomoya IWAHASHI ,  Kazuyuki YAMAE

IPC: G02C7/10 ,  C09B23/06 ,  C09B47/00 ,  C09B47/30

Abstract: A color vision correction filter includes a least one type of dye material and the lowest value of transmittance of the color vision correction filter in a wavelength band ranging from 440 nm to 600 nm, inclusive, is in the range of plus or minus 50 nm of 535 nm.

公开(公告)号：US20230080967A1

公开(公告)日：2023-03-16

申请号：US17802567

申请日：2021-02-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Kazuyuki YAMAE ,  Hironori AKIYAMA ,  Hideki WADA ,  Kotone MORI

IPC: F21V7/00

Abstract: A light-emitting device includes: a light guide that includes (i) a light-transmissive member that is light-transmissive at least in a visible light region and (ii) a light control layer that is disposed on at least a part of a surface of the light-transmissive member; and a light source that emits light toward at least one end surface of the light-transmissive member. The light control layer has reflected-wavelength selectivity that makes a wavelength of reflected light dependent on an incident angle of incident light.

公开(公告)号：US20190041034A1

公开(公告)日：2019-02-07

申请号：US16051923

申请日：2018-08-01

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Itaru ONISHI ,  Hideki WADA ,  Tomoya IWAHASHI

IPC: F21V9/40 ,  F21S2/00 ,  F21V14/00 ,  F21V17/02

Abstract: A filter includes a first filter having a recess, and a second filter made of a material different from that of the first filter. The second filter has a housed portion to be housed in the recess of the first filter such that the second filter is removable relative to the first filter. The housed portion of the second filter may correspond to either the entirety or a portion of the second filter. This structure facilitates formation of the filter having a simple structure and implementation of desired light distribution of two or more different light beams.

公开(公告)号：US20220100004A1

公开(公告)日：2022-03-31

申请号：US17424558

申请日：2020-01-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideki WADA

IPC: G02C7/10 ,  G02B5/22

Abstract: A color vision correction lens (1) includes: a first resin layer (10) having a convex surface (10a); and a second resin layer (20) stacked on the convex surface (10a). The first resin layer (10) includes an absorbing material (12) that absorbs light in a first wavelength band (90). The second resin layer (20) includes a fluorescent material (22) that emits fluorescence in a second wavelength band (92). The first wavelength band (90) and the second wavelength band (92) overlap at least partially.

公开(公告)号：US20170219175A1

公开(公告)日：2017-08-03

申请号：US15419163

申请日：2017-01-30

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tohru HIMENO ,  Makoto YAMADA ,  Shinichi AOKI ,  Hideki WADA

IPC: F21S8/08 ,  F21V15/01 ,  F21V21/116 ,  F21V3/04 ,  F21V11/16 ,  F21V5/04

CPC classification number: F21S8/086 ,  F21V9/00 ,  F21W2131/103 ,  F21Y2103/10 ,  F21Y2115/10

Abstract: A lighting apparatus to be installed in an area adjacent to land is provided. The lighting apparatus includes a plurality of light sources disposed on a board and further includes a light shield. The light shield blocks a portion of light emitted from the light sources. The portion of light has a predetermined wavelength. The light shield is disposed on the board closer to the land than at least a light source disposed closest to the land among the light sources. The light shield has a shape which sends, to the land, first emission light included in the light emitted from the light sources. The shape avoids sending, to the land, second emission light included in the light emitted from the light sources. The first emission light passes through the light shield. The second emission light does not pass through the light shield.