Optical component and its method of manufacture, and light emitting device and its mehtod of manufacture

Patent metadata

Field	Value
Publication number	US-9793680-B2
Application number	US-201615344641-A
Country	US
Kind code	B2
Filing date	Nov 7, 2016
Priority date	Sep 30, 2014
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

An optical component includes a support member having a through-hole, a second light-transmissive member disposed inside the through-hole, and having a light incidence face, a light emission face, and an outer peripheral side surface, and at least one functional film selected from a group consisting of a short pass filter, a long pass filter, and a heat dissipation member and disposed on a surface of the second light-transmissive member.

First claim

What is claimed is:

1. An optical component comprising:
a support member having a through-hole;
a second light-transmissive member disposed inside the through-hole, and having a light incidence face, a light emission face, and an outer peripheral side surface; and
at least one functional film selected from a group consisting of a short pass filter, a long pass filter, and a heat dissipation member, the functional film being disposed on a surface of the second light-transmissive member.

2. The optical component according to claim 1 , wherein
the functional film is the heat dissipation member.

3. An optical component comprising:
a support member having a through-hole;
a second light-transmissive member disposed inside the through-hole, and having a light incidence face, a light emission face, and an outer peripheral side surface; and
a heat dissipation member disposed over a surface of the second light-transmissive member.

4. The optical component according to claim 3 , wherein
the heat dissipation member is made from a light-transmissive material.

5. The optical component according to claim 3 , wherein
the heat dissipation member is made from sapphire.

6. The optical component according to claim 3 , further comprising
a functional film disposed between the second light-transmissive member and the heat dissipation member.

7. The optical component according to claim 6 , wherein
the functional film is disposed in contact with the second light-transmissive member.

8. The optical component according to claim 6 , wherein
the functional film is disposed in contact with the heat dissipation member.

9. The optical component according to claim 3 , wherein
the second light-transmissive member contains a phosphor which converts wavelength of light emitted from light source.

10. The optical component according to claim 3 , further comprising
a third light-transmissive member that covers the light emission face of the second light-transmissive member.

11. The optical component according to claim 10 , wherein
the third light-transmissive member includes a phosphor.

12. The optical component according to claim 10 , wherein
the third light-transmissive member includes a filler.

13. The optical component according to claim 3 , wherein
the second light-transmissive member is made of an ceramics.

14. The optical component according to claim 3 , wherein
the first light-transmissive member is made of an inorganic material.

15. The optical component according to claim 3 , wherein
the support member is made of a light reflective material.

16. A light emitting device comprising:
the optical component of claim 1 ; and
a semiconductor laser element.

17. A light emitting device comprising:
the optical component of claim 3 ; and
a semiconductor laser element.

Assignees

• Nichia Corp

Inventors

• Okada Takeshi

Classifications

• H01S5/02212

  Can-type, e.g. TO-CAN housings with emission along or parallel to symmetry axis · CPC title

• H01S5/32341

  blue laser based on GaN or GaP · CPC title

• F21V13/08

  the elements being filters or photoluminescent elements and reflectors · CPC title

• C09K11/00

  Luminescent materials, e.g. electroluminescent or chemiluminescent · CPC title

• F21V3/061

  the material being glass · CPC title