Light emitting apparatus and method of manufacturing light emitting apparatus

Patent metadata

Field	Value
Publication number	US-10727144-B2
Application number	US-201616077681-A
Country	US
Kind code	B2
Filing date	Nov 25, 2016
Priority date	Mar 2, 2016
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

A light emitting apparatus according to an embodiment of the present technology includes a base portion, a light emitting element, and a cover portion. The base portion includes a support surface. The light emitting element is disposed on the support surface of the base portion. The cover portion includes a light transmission portion through which light emitted from the light emitting element is transmitted and a protrusion portion which is provided on at least a part of a periphery of the light transmission portion and protruded relative to the light transmission portion, the cover portion being provided on the support surface in such a manner as to cover the light emitting element.

First claim

The invention claimed is:

1. A light emitting apparatus, comprising:
a base portion that includes a support surface;
a light emitting element on the support surface of the base portion; and
a cover portion that includes:
a plurality of side surface portions which surrounds the light emitting element;
a light transmission portion through which light emitted from the light emitting element is to be transmitted, wherein
the light transmission portion is on a first side surface portion of the plurality of side surface portions, and
the first side surface portion includes a lower side connected with the support surface, an upper side opposite to the lower side, and two lateral sides between the lower side and the upper side; and

a protrusion portion, wherein
the protrusion portion is in contact with each of an upper side area and two lateral side areas,
the upper side area is adjacent to the upper side,
the two lateral side areas are adjacent to each of the upper side area and the two lateral sides, and
the cover portion is on the support surface to cover the light emitting element.

2. The light emitting apparatus according to claim 1 , wherein
the protrusion portion is protruded along a direction of transmission of the light emitted from the light emitting element.

3. The light emitting apparatus according to claim 1 , wherein
the cover portion further includes an upper surface portion which faces the support surface,
the protrusion portion further includes an end portion of the upper surface portion on a side of the first side surface portion, and
the end portion is protruded relative to the light transmission portion.

4. The light emitting apparatus according to claim 1 , wherein
the cover portion further includes two second side surface portions connected with the first side surface portion,
the protrusion portion further includes end portions of each of the two second side surface portions on a side of the first side surface portion, and
the end portions are protruded relative to the light transmission portion.

5. The light emitting apparatus according to claim 1 , wherein
the cover portion is entirely made of a same material.

6. The light emitting apparatus according to claim 5 , wherein
the cover portion comprises one of glass or sapphire.

7. The light emitting apparatus according to claim 1 , wherein
the light transmission portion comprises a first material, and
the protrusion portion comprises a second material different from the first material.

8. The light emitting apparatus according to claim 7 , wherein
the first side surface portion includes a through hole, a peripheral portion of the through hole, and a light transmission side member,
the light transmission side member includes the light transmission portion, and
the light transmission side member is connected to the peripheral portion from an inner portion side of the cover portion such that the light transmission portion blocks the through hole from the inner portion side.

9. The light emitting apparatus according to claim 1 , wherein
the cover portion further includes an upper surface portion which faces the support surface, and
the first side surface portion has a first part connected with the upper surface portion, and
a first cross sectional area of the first part is larger than a second cross sectional area of a second part connected with the support surface.

10. The light emitting apparatus according to claim 9 , wherein
the second cross sectional area is increased from the second part connected with the support surface towards the first part connected with the upper surface portion.

11. The light emitting apparatus according to claim 9 , wherein
the first side surface portion has the first part connected with the upper surface portion, and
the first part has a curved shape.

12. A method of manufacturing a light emitting apparatus, comprising:
mounting a plurality of light emitting elements on a substrate;
forming a cover member having a plurality of surface portions, wherein the plurality of surface portions surrounds the plurality of light emitting elements,
forming, on a main surface portion of the plurality of surface portions, at least one light transmission side member including a light transmission portion through which light emitted from each of the plurality of light emitting elements is transmitted in accordance with positions of the plurality of light emitting elements, wherein
the main surface portion includes a lower side connected with the substrate, an upper side opposite to the lower side, and two lateral sides between the lower side and the upper side;

bonding the substrate and the cover member such that the at least one light transmission side member is connected to a specific position with respect to the plurality of light emitting elements on the substrate, wherein
a protrusion portion is in contact with each of an upper side area and two lateral side areas,
the upper side area is adjacent to the upper side, and
the two lateral side areas are adjacent to each of the upper side area and the two lateral sides;

cutting a position which is offset toward a direction in which the light is transmitted relative to the light transmission portion of the at least one light transmission side member on the main surface portion; and
forming a plurality of light emitting apparatuses including the plurality of light emitting elements.

13. The method according to claim 12 , further comprising
forming each of the main surface portion and the at least one light transmission side member by a same material.

14. The method according to claim 12 , further comprising
connecting the at least one light transmission side member separated from the main surface portion with the main surface portion.

Assignees

• Sony Corp
• Sny Corp

Inventors

• Murayama Masahiro
• Furushima Yuji

Classifications

• H10W72/0198

  batch processes · CPC title

• H10W72/50

  Bond wires · CPC title

• H10W72/552

  comprising metals or metalloids, e.g. silver · CPC title

• H10W72/884

  Die-attach connectors and bond wires · CPC title

• H10W90/754

  between a chip and a stacked insulating package substrate, interposer or RDL · CPC title