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US Patent 11822221 Light source system and projection apparatus

Patent 11822221 was granted and assigned to Appotronics Corporation Limited on November, 2023 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Applicant
Appotronics Corporation Limited
Appotronics Corporation Limited
1
Current Assignee
Appotronics Corporation Limited
Appotronics Corporation Limited
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
118222211
Patent Inventor Names
Ning Lu1
Yi Li1
Zuqiang Guo1
Date of Patent
November 21, 2023
1
Patent Application Number
174205091
Date Filed
December 23, 2019
1
Patent Citations
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US Patent 11126073 Illumination system and projection apparatus
1
Patent Primary Examiner
‌
Magda Cruz
1
CPC Code
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G03B 33/08
1
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G02B 26/008
1
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G02B 27/141
1
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G03B 21/206
1
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G03B 21/208
1
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G03B 21/2073
1
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G03B 21/2066
1
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G03B 21/204
1
Patent abstract

Provided is a light source system, including: an excitation light source for emitting excitation light; a wavelength conversion device provided with a conversion layer which is used to perform wavelength conversion on at least a portion of the excitation light to obtain stimulated light, and to exit the stimulated light and the unconverted excitation light; and a dichroic assembly which is used to guide the stimulated light exited from the conversion layer to propagate along the second optical path, and finally to exit from the light source system along the exit optical path, and to guide at least a portion of the unconverted excitation light exited from the conversion layer to transmit on a path, which is not the exit optical path. Further provided is a projection device comprising the above light source system.

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