Light emitting device

Patent metadata

Field	Value
Publication number	US-2020083413-A1
Application number	US-201916528835-A
Country	US
Kind code	A1
Filing date	Aug 1, 2019
Priority date	Sep 11, 2018
Publication date	Mar 12, 2020
Grant date	—

Abstract

A light emitting device includes a substrate, a light emitting element mounted on the substrate, an uninterrupted annular sealing member installed in such a manner as to surround the light emitting element, a waterproof sheet installed in such a manner as to cover an upper side of the light emitting element and the sealing member, and transmit light emitted from the light emitting element, and an uninterrupted annular cover installed on the waterproof sheet, with a region of the cover being open above the light emitting element. The waterproof sheet is being fixed by sandwiching the waterproof sheet between the sealing member and the cover. A mounting region for the light emitting element on the substrate, which is being laterally surrounded by the sealing member while being covered by the waterproof sheet, is being hermetically sealed.

First claim

What is claimed is:

1 . A light emitting device, including:
a substrate; a light emitting element mounted on the substrate; an annular sealing member installed in such a manner as to surround the light emitting element; a waterproof sheet installed in such a manner as to cover an upper side of the light emitting element and the sealing member, and transmit light emitted from the light emitting element; and an annular cover installed on the waterproof sheet, with a region of the cover being open above the light emitting element, wherein the waterproof sheet is being fixed by sandwiching the waterproof sheet between the sealing member and the cover, wherein a mounting region for the light emitting element on the substrate, which is being laterally surrounded by the sealing member while being covered by the waterproof sheet, is being hermetically sealed.

2 . The light emitting device according to claim 1 , further including a light intercepting member, which covers a side surface of the waterproof sheet to intercept the light emitted from the light emitting element.

3 . The light emitting device according to claim 1 , further including a side wall, which is installed between the light emitting element and the sealing member, wherein the side wall is greater in height than the light emitting element, with an upper end of the side wall being in contact with the waterproof sheet.

4 . The light emitting device according to claim 2 , further including a side wall, which is installed between the light emitting element and the sealing member, wherein the side wall is greater in height than the light emitting element, with an upper end of the side wall being in contact with the waterproof sheet.

5 . The light emitting device according to claim 1 , further including a lens, which covers the upper side of the light emitting element, with an upper surface of the lens being in contact with the waterproof sheet, with the lens to transmit the light emitted from the light emitting element,
wherein a position of the lens is being fixed with the waterproof sheet.

6 . The light emitting device according to claim 2 , further including a lens, which covers the upper side of the light emitting element, with an upper surface of the lens being in contact with the waterproof sheet, with the lens to transmit the light emitted from the light emitting element,
wherein a position of the lens is being fixed with the waterproof sheet.

7 . The light emitting device according to claim 3 , further including a lens, which covers the upper side of the light emitting element, with an upper surface of the lens being in contact with the waterproof sheet, with the lens to transmit the light emitted from the light emitting element,
wherein a position of the lens is being fixed with the waterproof sheet.

8 . The light emitting device according to claim 1 , wherein the sealing member is being compressed in a thickness direction, and a thickness of the sealing member after being compressed is 65 to 95% of that before being compressed.

9 . The light emitting device according to claim 2 , wherein the sealing member is being compressed in a thickness direction, and a thickness of the sealing member after being compressed is 65 to 95% of that before being compressed.

10 . The light emitting device according to claim 3 , wherein the sealing member is being compressed in a thickness direction, and a thickness of the sealing member after being compressed is 65 to 95% of that before being compressed.

11 . The light emitting device according to claim 4 , wherein the sealing member is being compressed in a thickness direction, and a thickness of the sealing member after being compressed is 65 to 95% of that before being compressed.

12 . The light emitting device according to claim 5 , wherein the sealing member is being compressed in a thickness direction, and a thickness of the sealing member after being compressed is 65 to 95% of that before being compressed.

13 . The light emitting device according to claim 1 , wherein the light emitting element is a sterilizer that emits ultraviolet light.

14 . The light emitting device according to claim 2 , wherein the light emitting element is a sterilizer that emits ultraviolet light.

15 . The light emitting device according to claim 3 , wherein the light emitting element is a sterilizer that emits ultraviolet light.

16 . The light emitting device according to claim 4 , wherein the light emitting element is a sterilizer that emits ultraviolet light.

17 . The light emitting device according to claim 5 , wherein the light emitting element is a sterilizer that emits ultraviolet light.

Assignees

• Toyoda Gosei Kk

Inventors

• Ao Koji
• Ito Hiroshi

Classifications

• H01L33/52 Primary

  Electricity · mapped topic

• H01L33/486

  Electricity · mapped topic

• H10H20/8506 Primary

  Containers · CPC title

• H10H20/855

  Optical field-shaping means, e.g. lenses · CPC title

• H10H20/856

  Reflecting means · CPC title