Light irradiation substrate

Patent metadata

Field	Value
Publication number	US-10384075-B2
Application number	US-201615553583-A
Country	US
Kind code	B2
Filing date	Feb 15, 2016
Priority date	Feb 27, 2015
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A light irradiation substrate ( 1 ) includes a flexible substrate ( 5 ), first electrical conducting material patterns ( 15 ) composed of wirings ( 2 ) and a dummy pattern ( 6 ) which are provided on a front surface of the flexible substrate ( 5 ), and LED chips ( 4 ) each of which is mounted on each of the wirings ( 2 ), front surfaces of the first electrical conducting material patterns ( 15 ) are formed of a reflecting material having total light flux reflectance of 80% or more, and area coverage of the first electrical conducting material patterns ( 15 ) at least in a region surrounded by the LED chips ( 4 ) is 85% or more.

First claim

The invention claimed is:

1. A substrate for phototherapy comprising:
a flexible substrate that is insulating;
a first electrical conducting material patterns that is provided on a first surface of the flexible substrate; and
a light-emitting elements that is mounted on at least a part of the first electrical conducting material pattern and is surrounded entirely by the part of the first electrical conducting pattern, wherein
a front surface of the first electrical conducting material patterns is formed of a reflecting material with total light flux reflectance percentage of 80% or more, and
area coverage of first electrical conducting material patterns at least in a region surrounded by light-emitting elements is 85% or more of the region.

2. The substrate for phototherapy according to claim 1 , further comprising
on a second surface opposite of the first surface of the flexible substrate, a light shielding member that prevents light from leaking out from a side of the second surface.

3. The substrate for phototherapy according to claim 2 , further comprising
on the second surface opposite of the first surface of the flexible substrate, second surface side wirings that are electrically connected to a part of the first electrical conducting material patterns,
an anode wiring and a cathode wiring as the second surface side wirings,
an anode external connection unit and a cathode external connection unit, wherein the anode wiring and the cathode wiring connected to an outside, respectively, are connected to the second surface side wirings, and
connection is made to the anode external connection unit and the cathode external connection unit at positions that are adjacent to each other.

4. The substrate for phototherapy according to claim 3 , wherein
each of the anode external connection unit and the cathode external connection unit that are adjacent to each other is connected to a part of the first electrical conducting material patterns.

5. The substrate for phototherapy according to claim 1 , further comprising
a spacer that separates the light-emitting element from an irradiation target that is irradiated with light emitted by the light-emitting element by a constant distance, wherein
the spacer transmits light emitted by the light-emitting element, and is flexible.

6. The substrate for phototherapy according to claim 1 , wherein
the first electrical conducting material pattern and the light-emitting element are covered with a wiring protection film.

7. A substrate for phototherapy comprising:
a flexible substrate that is insulating;
first electrical conducting material patterns that are provided on a first surface of the flexible substrate; and
light-emitting elements that are mounted on at least a part of the first electrical conducting material patterns, wherein
front surfaces of the first electrical conducting material patterns are formed of a reflecting material with total light flux reflectance percentage of 80% or more, and
area coverage of the first electrical conducting material patterns at least in a region surrounded by the light-emitting elements is 85% or more of the region,
wherein a dummy pattern is provided in the first surface of the flexible substrate, except for a part on which the first electrical conducting material patterns are placed.

Assignees

• Sharp Kk

Inventors

• Iguchi Katsuji
• Mori Jun
• Nakanishi Tohru

Classifications

• A61N2005/0626

  Monitoring, verifying, controlling systems and methods · CPC title

• A61N5/0616

  Skin treatment other than tanning · CPC title

• A61N2005/0663

  Coloured light · CPC title

• A61N5/0624 Primary

  for eliminating microbes, germs, bacteria on or in the body · CPC title

• A61N2005/0643

  Applicators, probes irradiating specific body areas in close proximity · CPC title