TRANSMISSIVE OPTICAL ELEMENT BASED ON REFLECTIVE VOLUMETRIC GRATINGS

A transmissive optical element includes first and second reflective volumetric gratings that redirect an impinging light beam in a first wavelength range from the first grating to the second grating by reflective diffraction, and from the second grating out of the transmissive optical element, also...

Full description

Saved in:
Bibliographic Details
Main Authors Yun, Zhisheng, Sulai, Yusufu Njoni Bamaxam, Trochtchanovitch, Pavel
Format Patent
LanguageEnglish
Published 13.07.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A transmissive optical element includes first and second reflective volumetric gratings that redirect an impinging light beam in a first wavelength range from the first grating to the second grating by reflective diffraction, and from the second grating out of the transmissive optical element, also by reflective diffraction. Such a configuration enables the transmissive optical element to transmit a light cone in a second, different wavelength range substantially without redirecting the light cone, while redirecting the impinging light beam at the same time. The transmissive optical element may be used in a visual display e.g. to separate paths of image light in visible part of light spectrum and some service light in a different part of the light spectrum.
Bibliography:Application Number: US202217590692