Optical differentiation wavefront sensing with binary pixelated transmission filters

Qiao, Jie; Mulhollan, Zachary; Dorrer, C.

doi:10.1364/oe.24.009266

Cited by 19 publications

(2 citation statements)

References 25 publications

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“…While the pyramid wavefront sensor requires the implementation of moving parts to modulate the signal, the crossed-sine WFS is only made of static elements. So far, the main identified difficulty concerns the manufacturing of their GTF, for which several technologies are already available including holographic plates [18], spatial light modulators [19], or the recent and promising microdot printing process [20].…”

Section: Discussionmentioning

confidence: 99%

Crossed-sine wavefront sensor for adaptive optics, metrology and ophthalmology applications

Hénault¹,

Spang²,

Yan³

et al. 2020

Eng. Res. Express

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Wavefront Sensors (WFS) have now become core components in the fields of adaptive optics for astronomy, biomedical optics, or metrology of optical systems. However, none of the designs used or proposed so far seems to achieve simultaneously a high spatial resolution at the pupil of the tested optics and absolute measurement accuracy comparable to that attained by laser-interferometers. This paper presents a new WFS concept susceptible to achieving both previous goals. This device is named crossed-sine wavefront sensor and is based on a gradient transmission filter located near the image plane of the tested system. The theoretical principle of the sensor is fully described in a Fourier optics framework. Numerical simulations confirm that the achievable measurement accuracy can reach λ/ 80 RMS, which is significantly higher than achieved by other types of WFS. The crossed-sine WFS also offers the advantages of being quasi-achromatic and working on slightly extended, natural or artificial light sources.

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Section: Discussionmentioning

confidence: 99%

Crossed-sine wavefront sensor for adaptive optics, metrology and ophthalmology applications

Hénault¹,

Spang²,

Yan³

et al. 2020

Eng. Res. Express

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“…The ODWS performance was evaluated using the twelve Zernike polynomials of radial order, defining the test wavefronts over the circular input pupil [ 56 ]. It emerges that the main advantages of this sensor are the high resolution, the possibility to use it with polychromatic source, and the large dynamic range [ 54 ].…”

Section: Wavefront Sensors For Ophthalmological Applications: Physica...mentioning

confidence: 99%

Advanced Optical Wavefront Technologies to Improve Patient Quality of Vision and Meet Clinical Requests

et al. 2022

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Adaptive optics (AO) is employed for the continuous measurement and correction of ocular aberrations. Human eye refractive errors (lower-order aberrations such as myopia and astigmatism) are corrected with contact lenses and excimer laser surgery. Under twilight vision conditions, when the pupil of the human eye dilates to 5–7 mm in diameter, higher-order aberrations affect the visual acuity. The combined use of wavefront (WF) technology and AO systems allows the pre-operative evaluation of refractive surgical procedures to compensate for the higher-order optical aberrations of the human eye, guiding the surgeon in choosing the procedure parameters. Here, we report a brief history of AO, starting from the description of the Shack–Hartmann method, which allowed the first in vivo measurement of the eye’s wave aberration, the wavefront sensing technologies (WSTs), and their principles. Then, the limitations of the ocular wavefront ascribed to the IOL polymeric materials and design, as well as future perspectives on improving patient vision quality and meeting clinical requests, are described.

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Partial compensation interferometry measurement system for parameter errors of conicoid surface

Hao

et al. 2018

Review of Scientific Instruments

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Surface parameters, such as vertex radius of curvature and conic constant, are used to describe the shape of an aspheric surface. Surface parameter errors (SPEs) are deviations affecting the optical characteristics of an aspheric surface. Precise measurement of SPEs is critical in the evaluation of optical surfaces. In this paper, a partial compensation interferometry measurement system for SPE of a conicoid surface is proposed based on the theory of slope asphericity and the best compensation distance. The system is developed to measure the SPE-caused best compensation distance change and SPE-caused surface shape change and then calculate the SPEs with the iteration algorithm for accuracy improvement. Experimental results indicate that the average relative measurement accuracy of the proposed system could be better than 0.02% for the vertex radius of curvature error and 2% for the conic constant error.

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Optical differentiation wavefront sensing with binary pixelated transmission filters

Cited by 19 publications

References 25 publications

Crossed-sine wavefront sensor for adaptive optics, metrology and ophthalmology applications

Crossed-sine wavefront sensor for adaptive optics, metrology and ophthalmology applications

Advanced Optical Wavefront Technologies to Improve Patient Quality of Vision and Meet Clinical Requests

Partial compensation interferometry measurement system for parameter errors of conicoid surface

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