Phosphor layer, component, corresponding light source, projection system and corresponding manufacturing method

Patent metadata

Field	Value
Publication number	US-9696010-B2
Application number	US-201214122628-A
Country	US
Kind code	B2
Filing date	May 4, 2012
Priority date	Jun 27, 2011
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A phosphor layer comprising a phosphor plate adhesively formed by a phosphor powder and an adhesive agent. The phosphor plate has a front side and a back side. The phosphor layer also have particles which are fixedly connected to the front and/or back side of the phosphor plate. Also provided in the present invention are a phosphor component, a corresponding light source, a projection system, and a method for manufacturing the phosphor layer. The phosphor component prevents adhesion between the phosphor plate and substrates thereof in high temperature conditions.

First claim

What is claimed is:

1. A phosphor component, comprising:
a first substrate and a second substrate;
a phosphor plate adhesively formed by a phosphor powder and an adhesive agent, wherein the phosphor plate is disposed between the first substrate and the second substrate and has a first side facing the first substrate and a second side facing the second substrate; and
a plurality of particles, which are fixedly connected to the first side of the phosphor plate and disposed between the first side of the phosphor plate and the first substrate, wherein the particles maintain an air gap between the first side of the phosphor plate and the first substrate.

2. The phosphor component of claim 1 , wherein the particles have a hardness greater than or equal to Shore D75.

3. The phosphor component of claim 1 , wherein the particles are metallic oxide particles, mixed crystal particles or phosphor particle.

4. The phosphor component of claim 1 , wherein a thickness of the particles is less than that of the phosphor plate.

5. The phosphor component of claim 4 , wherein the thickness of the particles is greater than or equal to 0.1 micrometers and less than or equal to 50 micrometers.

6. The phosphor component of claim 1 , wherein the particles are adhered to the front and/or the back side of the phosphor plate.

7. The phosphor component of claim 1 , wherein the particles are uniformly distributed on the first side of the phosphor plate.

8. The phosphor component of claim 1 , wherein the adhesive agent is an organic adhesive agent.

9. A light source device comprising the phosphor component of claim 1 , further comprising:
an excitation light source for generating an excitation light; and
a color wheel which comprises at least one segment located on a light path of the excitation light, wherein at least one of the at least one segment has the phosphor component.

10. A projection system, comprising the light source device of claim 9 .

Assignees

• Yang Yi
• Li Yi
• Tang Huai
• Wu Xiliang
• Appotronics (China) Corp

Inventors

• Yang Yi
• Li Yi
• Tang Huai
• Wu Xiliang

Classifications

• F21V9/38

  Combination of two or more photoluminescent elements of different materials · CPC title

• F21V9/45

  by adjustment of photoluminescent elements · CPC title

• C09K11/08

  containing inorganic luminescent materials · CPC title

• G03B21/204

  using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197) · CPC title

• Y10T428/24372

  Particulate matter · CPC title