Patent ID: 11860523
Assignee: SEIKO EPSON CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A wavelength conversion apparatus comprising:
a wavelength conversion layer that converts excitation light in terms of wavelength;
an optical array layer formed of a plurality of cells each having a first surface on which light as a result of the wavelength conversion performed by the wavelength conversion layer is incident and a second surface via which the light exits;
a reflection layer at a surface of the wavelength conversion layer that is a surface opposite from a surface facing the optical array layer,
wherein the optical array layer has a reflection surface that extends from the first surface to the second surface, is located at an interface between the cells adjacent to each other, and reflects the light, and
the excitation light enters the wavelength conversion layer via the optical array layer, and the light converted in terms of wavelength and reflected off the reflection layer enters the optical array layer.