The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2025
Filed:
Mar. 10, 2022
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Abstract
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.