US 12,140,846 B2
Spectral and phase modulation tunable birefringence devices
Ibrahim Abdulhalim, Neveh Shalom (IL)
Filed by Ibrahim Abdulhalim, Neveh Shalom (IL)
Filed on Jul. 3, 2023, as Appl. No. 18/217,715.
Application 17/234,341 is a division of application No. 16/644,637, granted, now 11,112,671, issued on Sep. 7, 2021, previously published as PCT/IL2018/050756, filed on Jul. 11, 2018.
Application 18/217,715 is a continuation in part of application No. 18/071,713, filed on Nov. 30, 2022, granted, now 11,774,824.
Application 18/071,713 is a continuation in part of application No. 17/234,341, filed on Apr. 19, 2021, granted, now 11,567,381.
Claims priority of provisional application 62/623,566, filed on Jan. 30, 2018.
Claims priority of provisional application 62/553,954, filed on Sep. 4, 2017.
Prior Publication US 2023/0359098 A1, Nov. 9, 2023
Int. Cl. G02F 1/137 (2006.01); E06B 3/67 (2006.01); E06B 9/24 (2006.01); G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01)
CPC G02F 1/137 (2013.01) [E06B 3/6715 (2013.01); E06B 9/24 (2013.01); G02F 1/132 (2013.01); G02F 1/133502 (2013.01); G02F 1/133504 (2013.01); G02F 1/133528 (2013.01); G02F 1/13363 (2013.01); G02F 1/1337 (2013.01); G02F 1/13439 (2013.01); E06B 2009/2417 (2013.01); E06B 2009/2464 (2013.01); G02F 1/133548 (2021.01); G02F 1/133565 (2021.01); G02F 1/133638 (2021.01); G02F 1/13756 (2021.01); G02F 2202/36 (2013.01); G02F 2203/06 (2013.01); G02F 2413/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fast spectral modulator for modulating intensity, phase, and spectrum of light beam, comprising at least one liquid crystal composite and a photonic structure,
characterised in that:
said at least one liquid crystal composite is made of a liquid crystal and porous microparticles infiltrated within said liquid crystal, wherein:
(i) said porous microparticles have an average refractive index approximately equals to one of the liquid crystal principal refractive indices; and
(ii) concentration of said microparticles in said composite is less than 0.1% for avoiding significant light scattering.