Patent ID: 11921410
Assignee: APPOTRONICS CORPORATION LIMITED
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 16:
17. A light source system, comprising:
a first light-emitting assembly configured to generate at least one primary light;
a second light-emitting assembly configured to generate excitation light;
a wavelength conversion device at least partially provided on an optical path of the excitation light and configured to receive the excitation light and generate excited light;
an optical assembly provided on an optical path of the excited light and configured to increase etendue of the excited light before light combination of the at least one primary light and the excited light, to improve a ratio of etendue of the excited light to etendue of the at least one primary light and reduce loss of the excited light during the light combination; and
a light combination device provided on a common optical path of the at least one primary light and the excited light, located behind the optical assembly, wherein the light combination device has a central region and a surrounding region outside the central region, and wherein the central region of the light combination device is configured to transmit the at least one primary light and the surrounding region of the light combination device is configured to reflect the excited light, or the central region of the light combination device is configured to reflect the at least one primary light and the surrounding region of the light combination device is configured to transmit the excited light, so as to combine the at least one primary light and the excited light.