公开(公告)号：US10381532B2

公开(公告)日：2019-08-13

申请号：US15765258

申请日：2016-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahito Yamana ,  Noboru Iizawa ,  Jun Hirai ,  Yoshiyuki Nakano

IPC: H01L33/58 ,  F21V9/30 ,  G02B5/20 ,  H01S5/02 ,  F21V29/502 ,  F21V5/00 ,  G03B21/20 ,  H04N9/31 ,  F21V29/503 ,  F21V29/70 ,  G02B27/10 ,  H01L33/50 ,  A61B1/06 ,  F21Y115/30 ,  F21S2/00

Abstract: A wavelength conversion device includes a light source for emitting light having a predetermined wavelength in a wavelength region from ultraviolet light to visible light, a phosphor layer for performing wavelength conversion on light which is emitted from the light source and incident on an incidence face, and an optical member which is arranged between the light source and the phosphor layer, splits and separates light emitted from the light source and emits the split and separated light beams to the incidence face of phosphor layer.

公开(公告)号：US11054101B2

公开(公告)日：2021-07-06

申请号：US16998779

申请日：2020-08-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yosuke Araki ,  Ryoma Murase ,  Kazumasa Takata ,  Jun Hirai ,  Hiroshi Umiji ,  Hiroshi Hamano

IPC: F21S41/25 ,  F21V5/00 ,  F21V3/02 ,  F21S41/30 ,  F21S41/143 ,  F21W102/135 ,  F21Y115/10

Abstract: A lighting device includes a light emitting element; a first lens that receives light emitted from the light emitting element and emits first emission light; and a second lens that receives the first emission light and emits second emission light. The first lens has a first emission surface emitting the first emission light, the first emission surface having a convex shape protruding in a Z direction.

公开(公告)号：US09958133B2

公开(公告)日：2018-05-01

申请号：US15214794

申请日：2016-07-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jun Hirai ,  Tadashi Murakami

IPC: F21V5/00 ,  F21K9/64 ,  F21V5/04 ,  F21V5/08 ,  F21V7/00 ,  F21Y115/10 ,  F21W131/103 ,  F21Y105/10 ,  F21S2/00 ,  F21S8/08 ,  F21Y105/16

CPC classification number: F21V5/007 ,  F21K9/64 ,  F21S2/00 ,  F21S8/086 ,  F21V5/04 ,  F21V5/08 ,  F21V7/0091 ,  F21W2131/103 ,  F21Y2105/10 ,  F21Y2105/16 ,  F21Y2115/10

Abstract: An optical lens includes: a first lens surface which defines a space for housing a light emitting diode (LED) light source; a second lens surface formed in a convex shape; and a third lens surface formed continuously from a rear edge portion of the second lens surface, which is on a side opposite an illumination target side. The first lens surface includes a first light-entering surface through which a portion of light from the LED light source enters, and a second light-entering surface through which another portion of the light enters. The third lens surface totally reflects, to a substrate, at least a portion of the light. An angle between the third lens surface and a principal surface of the substrate on a virtual plane which includes an optical axis is smaller than an angle between the second light-entering surface and the principal surface on the virtual plane.