METHOD FOR DESIGNING DIFFRACTION SUPPRESSION OPTICAL COMPONENT, DISPLAY SCREEN AND UNDER-SCREEN CAMERA APPARATUS

A method for designing a phase-typed diffraction suppressing optical device (12) for a transparent display screen (11) is disclosed, which comprises: acquiring a light field complex amplitude distribution U(x2,y2,d)=A(x2,y2,d)exp(iφ20(x2,y2,d)) on a plane with a distance d from the transparent displ...

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Bibliographic Details
Main Authors WU, Hao, DOU, Chenhao, FAN, Zhenato, ZHANG, Kai, FENG, Hui, TIAN, Kehan
Format Patent
LanguageEnglish
Published 11.05.2023
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
TELEPHONIC COMMUNICATION
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Summary:A method for designing a phase-typed diffraction suppressing optical device (12) for a transparent display screen (11) is disclosed, which comprises: acquiring a light field complex amplitude distribution U(x2,y2,d)=A(x2,y2,d)exp(iφ20(x2,y2,d)) on a plane with a distance d from the transparent display screen (12) after a plane wave is transmitted through the screen; and designing the diffraction suppressing optical device (12), so that it has a transmittance function t2 (x2,y2)=exp(iφ21(x2,y2)) and satisfies φ20 (x2,y2,d)+φ21 (x2,y2)=C, where C is a constant. A diffraction suppressing optical device (12) and an under-screen camera apparatus (1) comprising the same are disclosed. The phase-typed diffraction suppressing optical device (12) suppresses the diffraction effect in the under-screen camera apparatus (1) by providing phase modulation, thereby improving the quality of under-screen imaging.
Bibliography:Application Number: US202117802734