Patent ID: 11962125
Assignee: APPOTRONICS CORPORATION LIMITED
Field: Optics (Instruments)
Classification: CPC H  G | IPC G  H

Claim 17:
18. The wavelength conversion device according to claim 8, wherein each of the first conversion unit, the second conversion unit, and the third conversion unit has a triple-layer structure, and each of the first light guiding region and the first reflective region has a double-layer structure; and
a thickness of at least one of a base material or a diffuse reflection layer of the first light guiding region and a thickness of at least one of a base material or a diffuse reflection layer of the first reflective region are increased in such a manner that the first conversion unit, the second conversion unit, the third conversion unit, the first light guiding region, and the first reflective region have a same thickness in the emitting direction of the excited light.