Back to results
US 8,678,596 B2Granted
Illumination device and projector with fluorescent plate
AssigneeSeiko Epson Corporation
InventorsHidefumi Sakata, Shunji Kamijima, Akira Miyamae, Shuji Narimatsu
Life of this patent
Estimating the term…
Abstract
An illumination device includes: a light source device adapted to emit an excitation light beam; and a rotating fluorescent plate having a single fluorescent layer adapted to convert a part or whole of the excitation light beam into a fluorescent light beam. The fluorescent light beam includes two or more colored light beams, and the single fluorescent layer is formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk.
Claims20
An illumination device comprising:
- a light source device adapted to emit an excitation light beam;
- and
- a rotating fluorescent plate having a single fluorescent layer formed on a circular disk, which can be rotated by a motor, continuously along a circumferential direction of the circular disk, the single fluorescent layer converting a part or whole of the excitation light beam into a fluorescent light beam that includes two or more colored light beams and emitting the two or more colored light beams simultaneously.
Dependencies are inferred from the claim text.