Panasonic Intellectual Property Management Co., Ltd.

Yosuke Mizokami

Norishige Nanai

Toru Hirano

Toshihiko Sato

In a lighting system, a wavelength-converting fiber includes a light inlet portion, a light outlet portion, and a wavelength-converting portion containing a wavelength-converting element. The wavelength-converting element may be excited not only by excitation light to produce a spontaneous emission of light having a longer wavelength than the excitation light but also by an amplified spontaneous emission of light. A first light source unit emits the excitation light. A second light source unit emits a seed light ray causing the wavelength-converting element that has been excited by either the excitation light Por the amplified spontaneous emission of light to produce a stimulated emission of light. An optical system makes the excitation light coming from the first light source unit and the seed light ray coming from the second light source unit incident on the light inlet portion. The output lens condenses outgoing light coming from the light outlet portion.

Lighting system

A light-emitting system includes an optical fiber, a first light source unit, a second light source unit, and a light-guiding member. The optical fiber includes a wavelength-converting portion containing a wavelength-converting element. The wavelength-converting element may be excited by excitation light to produce a spontaneous emission of light having a longer wavelength than the excitation light and may also be excited by an amplified spontaneous emission of light. The first light source unit makes the excitation light incident on the optical fiber. The second light source unit makes seed light, causing the wavelength-converting element that has been excited by either the excitation light or the amplified spontaneous emission of light to produce a stimulated emission of light, incident on the optical fiber. The light-guiding member guides the light coming from the optical fiber and lets the light emerge therefrom.

Growing community of inventors

Hyogo, Japan

Yosuke Mizokami