18604122. PHOSPHOR, WAVELENGTH CONVERSION DEVICE, ILLUMINATION DEVICE, AND PROJECTOR simplified abstract (SEIKO EPSON CORPORATION)

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PHOSPHOR, WAVELENGTH CONVERSION DEVICE, ILLUMINATION DEVICE, AND PROJECTOR

Organization Name

SEIKO EPSON CORPORATION

Inventor(s)

Kengo Kano of MATSUMOTO-SHI (JP)

Soma Toda of MATSUMOTO-SHI (JP)

PHOSPHOR, WAVELENGTH CONVERSION DEVICE, ILLUMINATION DEVICE, AND PROJECTOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18604122 titled 'PHOSPHOR, WAVELENGTH CONVERSION DEVICE, ILLUMINATION DEVICE, AND PROJECTOR

The patent application describes a phosphor with a garnet structure and a matrix phase with a higher refractive index.

  • The phosphor phase content is between 56 vol % and 70 vol % in relation to the total volume including the matrix phase.
  • The phosphor phase is made of AB0:Ce, where A is Lu, Gd, Tb, Ga, or Y, and B is Al.
  • The innovation combines the phosphor phase with a matrix phase to enhance optical properties.

Potential Applications:

  • Lighting applications
  • Display technologies
  • Medical imaging

Problems Solved:

  • Improving light emission efficiency
  • Enhancing color rendering in lighting applications

Benefits:

  • Higher optical efficiency
  • Improved color quality
  • Enhanced performance in various applications

Commercial Applications:

  • LED lighting industry
  • Display manufacturing companies
  • Medical device manufacturers

Questions about the technology: 1. How does the refractive index of the matrix phase impact the performance of the phosphor? 2. What are the specific advantages of using a garnet structure in the phosphor composition?

Frequently Updated Research: New studies on the optical properties of phosphor-matrix composites may provide further insights into their potential applications and performance improvements.


Original Abstract Submitted

A phosphor includes a phosphor phase made of ABO:Ce having a garnet structure; and a matrix phase having a refractive index higher than a refractive index of the phosphor phase. A content of the phosphor phase is 56 vol % or more and 70 vol % or less in terms of a volume ratio with respect to a total including the matrix phase and the phosphor phase. A is at least one selected from the group consisting of Lu, Gd, Tb, Ga, and Y. B is Al.

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