Fresnel rhombs yog cov zoo heev achromatic retarders nrog qis kub rhiab heev thiab dav dav Wavelength Range tshaj Waveplate, nws hloov retardance nrog wavelength tshwm sim tsuas yog los ntawm kev hloov nyob rau hauv refractive index.zoo li broadband waveplates muab uniform λ / 4 los yog λ / 2 retardance tshaj ib tug dav ntawm wavelength. tshaj li qhov ua tau nrog birefringent waveplates, fresnel rhombs yog qhov zoo tshaj plaws retardation daim hlau hloov rau broadband, multi-line lossis tunable laser qhov chaw.
DIEN TECH muab ib nrab nthwv dej retarders uas yog tsim los ntawm kev sib txuas ob lub quarter yoj rhombs.