Patent ID: 11906757
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 21:
22. The method of claim 20, further comprising:
converting, by the second general-purpose polarization conversion element, a polarization direction of light of a third wavelength band that is different from the first wavelength band and the second wavelength band from the first polarization direction to the second polarization direction; and
converting, by the third general-purpose polarization conversion element, the polarization direction of the light of the first wavelength band from the first polarization direction to the second polarization direction,
the polarization direction of the light of the third wavelength band from the first polarization direction to the second polarization direction, and converting the polarization direction of the light of the first wavelength band and the polarization direction of the light of the second wavelength band from the second polarization direction to the first polarization direction,
wherein the light of the first wavelength band, the light of the second wavelength band, and the light of the third wavelength band sequentially pass through the first selective polarization conversion element, the first deflection element, the first general-purpose polarization conversion element, the second deflection element, a second selective polarization conversion element, the third deflection element, the second general-purpose polarization conversion element, the fourth deflection element, a third selective polarization conversion element, the fifth deflection element, the third general-purpose deflection conversion element, and the sixth deflection element,
wherein the first selective polarization conversion element maintains the polarization direction of the light of the third wavelength band as the second wavelength band,
wherein the first general-purpose polarization conversion element converts the polarization direction of the light of the third wavelength band from the second polarization direction to the first polarization direction, and
wherein the second general-purpose polarization conversion element converts the polarization direction of the light of the third wavelength band from the second polarization direction to the first polarization direction.