Dynamic control of defocus, astigmatism, and tilt aberrations with a large area foveal liquid crystal lens

Bégel Louis; Galstian Tigran

doi:10.1364/AO.517797

Applied Optics
Vol. 63,
Issue 11,
pp. 2798-2805
(2024)
•https://doi.org/10.1364/AO.517797

Dynamic control of defocus, astigmatism, and tilt aberrations with a large area foveal liquid crystal lens

Bégel Louis and Galstian Tigran

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Bégel Louis and Galstian Tigran, "Dynamic control of defocus, astigmatism, and tilt aberrations with a large area foveal liquid crystal lens," Appl. Opt. 63, 2798-2805 (2024)

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Abstract

We have recently reported the dynamic adjustment of the focal length in an electrically tunable liquid crystal “foveal” lens, the center of which can be shifted over a large working area. In the present work, we show that this design allows also the independent generation of astigmatism with arbitrary axis and tilt of the light wavefront by simply changing the phase and the voltage differences between 4 control electrodes. Furthermore, we also demonstrate the capability of generating highly localized negative (defocusing) lenses with the same device by using a dual frequency liquid crystal.

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Data availability

Detailed data underlying the results presented in this paper are not publicly available at this time but may be obtained from authors upon request.

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Fig.	a	b	c	d	e	f	g	h	i	j
$A x i s (^{\circ})$	0	25	35	49	61	90	112	123	150	155
$Δ φ$	0	$+$ 10	$+$ 15	$+$ 15	$+$ 10	0	−10	−15	−15	−10
$Δ V$	−1	−0, 8	−0, 4	0	$+$ 0, 4	$+$ 1	$+$ 1	0.2	−0.6	−0.8

Fig.	1	2	3	4	5	6	7	8
$V_{A}$	3.2	3.5	3.8	3.8	3.8	3.5	3.2	3.2
$V_{B}$	3.8	3.5	3.2	3.2	3.2	3.5	3.8	3.8
$V_{C}$	3.2	3.2	3.2	3.5	3.8	3.8	3.8	3.5
$V_{D}$	3.8	3.8	3.8	3.5	3.2	3.2	3.2	3.5

Fig.	a	b	c	d	e	f	g	h	i	j
$A x i s (^{\circ})$	0	25	35	49	61	90	112	123	150	155
$Δ φ$	0	$+$ 10	$+$ 15	$+$ 15	$+$ 10	0	−10	−15	−15	−10
$Δ V$	−1	−0, 8	−0, 4	0	$+$ 0, 4	$+$ 1	$+$ 1	0.2	−0.6	−0.8

Fig.	1	2	3	4	5	6	7	8
$V_{A}$	3.2	3.5	3.8	3.8	3.8	3.5	3.2	3.2
$V_{B}$	3.8	3.5	3.2	3.2	3.2	3.5	3.8	3.8
$V_{C}$	3.2	3.2	3.2	3.5	3.8	3.8	3.8	3.5
$V_{D}$	3.8	3.8	3.8	3.5	3.2	3.2	3.2	3.5

Abstract

Data availability

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Figures (8)

Tables (2)

Equations (6)

Applied Optics