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:
Jul. 29, 2025
Filed:
Mar. 09, 2023
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Taisuke Nishimori, Osaka, JP;
Hiroshi Kitano, Hyogo, JP;
Abstract
A first light source device emits first light having a first wavelength. A second light source device emits second light having a second wavelength longer than the first wavelength. A splitting unit is configured to split the first light into third light having a third wavelength same as the first wavelength and fourth light having a fourth wavelength same as the first wavelength. A wavelength converter is configured to be excited by the third light to emit fifth light having a luminescence peak at a fifth wavelength between the third wavelength and the second wavelength. A combining optical system is configured to combine the second light, the fourth light, and the fifth light together. A control device is configured to control a light output of the second light source device and a split ratio between the third light and the fourth light in the splitting unit.