Adaptive spherical lens

Kowel, Stephen T.; Kornreich, Philipp; Nouhi, A.

doi:10.1364/ao.23.002774

Cited by 36 publications

(8 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The objective of this paper is to outline an adaptive lenticular lens array model in order to significantly improve image quality, and to develop an enhanced fabrication technology for the adaptive lenticular lens array. [3][4][5][6][7][8][9]…”

Section: Introductionmentioning

confidence: 99%

Adaptive lenticular lens array using a hybrid liquid crystal–carbon nanotube nanophotonic device

et al. 2011

View full text Add to dashboard Cite

We present a switchable liquid crystal cylindrical lens array fabricated with a combination of a sparse electrode array of multiwall carbon nanotubes (MWCNTs) grown upon a silicon substrate, and a second glass substrate featuring an in-plane switching (IPS) electrode structure. A cylindrical shape of an electric field profile was produced between the MWCNT substrate and the IPS substrate. This cylindrical shape was controlled by the application of an external electric field. The average focal lengths at different voltages were calculated. This adaptive lenticular lens array can be used in autostereoscopic displays. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

show abstract

Section: Introductionmentioning

confidence: 99%

Adaptive lenticular lens array using a hybrid liquid crystal–carbon nanotube nanophotonic device

et al. 2011

View full text Add to dashboard Cite

show abstract

“…S. T. Kowel et al used a parallel alignment LC cell to fabricate a adaptive focal length plano-convex cylindrical lens in 1981 [10]. In 1984, he also realized a spherical lens by using two perpendicularly placed LC cells [11]. A LCWFC with 16 actuators was achieved in 1986 by A.…”

Section: Many Domestic and International Researchers Have Devoted Thementioning

confidence: 99%

“…Therefore, the atmospheric turbulence wavefront Ф t can be calculated by using Eqs. (11) and (12). As the phase wrapping technique is employed, the atmospheric turbulence wavefront can be wrapped into 2π and quantized and thus the distribution of the quantization level across a telescope aperture D can be determined.…”

Section: Zernike Polynomials For Atmospheric Turbulencementioning

confidence: 99%

“…By using Eqs. (11) and (12), <Ф t > can be calculated and the first 136 modes of the Zernike polynomials are used in the calculation. For the randomness of the atmospheric turbulence wavefront, different quantization levels are used during the quantization, depending upon the fluctuation degree of the wavefront.…”

Section: Calculation Of the Required Pixel Number Of Dlcwfcsmentioning

confidence: 99%

See 1 more Smart Citation

Liquid Crystal Wavefront Correctors

Li¹,

Cao²,

Mu³

et al. 2012

Adaptive Optics Progress

View full text Add to dashboard Cite

“…This technique is particularly used in astronomy to correct atmospheric perturbations [7][8][9][10] . Dynamic approaches using SLM without any closed-loop control have also been developed [11][12][13][14][15] . For example, Kowel 11 used a liquid crystal display to produce a programmable spherical lens.…”

Section: Introductionmentioning

confidence: 99%

Sequential aberrations compensation in an off-axis holographic imaging system

Beuret

Vukičević

Twardowski

et al. 2011

Holography: Advances and Modern Trends II

View full text Add to dashboard Cite

A hybrid system that allows a high quality (low distortion) imaging in strong off axis configuration (50°) is proposed and analyzed in this paper. This imaging system is composed of a Bragg volume hologram (BVH) operating in catadioptric conditions and a programmable transmission computer generated holographic optical element (PCG-HOE). The BVH is used to produce a point by point virtual image in a sequential way by varying the angle of incidence of the reading wave. The PCG-HOE provides sequential aberrations correction adapted to each point to improve the image quality. A method to calculate the phase transfer function (PTF) to be implemented into the PCG-HOE to compensate for the aberrations of each virtual image points is presented. By applying the proposed approach we first demonstrate that the compensation of the aberrations is theoretically possible to a certain extent. In the last part of the paper, we discuss the constraining experimental conditions which have to be met, as well as obstacles to be overcome in order to achieve the fabrication of the BVH.

show abstract

Adaptive spherical lens

Cited by 36 publications

References 1 publication

Adaptive lenticular lens array using a hybrid liquid crystal–carbon nanotube nanophotonic device

Adaptive lenticular lens array using a hybrid liquid crystal–carbon nanotube nanophotonic device

Liquid Crystal Wavefront Correctors

Sequential aberrations compensation in an off-axis holographic imaging system

Contact Info

Product

Resources

About