Wave Optics

Groß, Herbert

doi:10.1002/9783527699223.ch12

Cited by 11 publications

(19 citation statements)

References 7 publications

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“…The (x,θ) space gives all possible states of rays. In (x,θ) space, the value at point P=(x,θ) gives the energy density of ray P, which means that (x,θ) space is equivalent to the luminance distribution function (LDF) 9 . In wave optics, the counterpart of luminance distribution function is the Wigner distribution function (WDF) 7 , which is defined in (x, f) space.…”

Section: Phase Space Representations Of Light Ray and Wave Fieldmentioning

confidence: 99%

Unified phase-space framework for near-eye displays

Xiao,

Zhao,

Zhang

2023

Holography, Diffractive Optics, and Applications XIII

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Section: Phase Space Representations Of Light Ray and Wave Fieldmentioning

confidence: 99%

Unified phase-space framework for near-eye displays

Xiao,

Zhao,

Zhang

2023

Holography, Diffractive Optics, and Applications XIII

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“…The necessary equations for these calculations can be found in most textbooks on optics, and we will follow Gross. 4 The expression for the conjugate points in Gaussian form is as follows:…”

Section: Position Of the Imagementioning

confidence: 99%

“…The necessary equations for these calculations can be found in most textbooks on optics, and we will follow Gross 4 . The expression for the conjugate points in Gaussian form is as follows: 1s′−1s=1f,where s and s′ are the distances from the first and second principal points to the object and image points, respectively, and f is the focal length in the image space.…”

Section: Alternative Paraxial Model Of Lensmentioning

confidence: 99%

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Exact formula for longitudinal chromatic aberration of a thick lens through design parameters

Duplov

2023

Opt. Eng.

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This work presents the exact analytical formula for calculation of the longitudinal chromatic aberration of a lens, in contrast with the approximate nature of the traditional approach based only on the dispersion of the optical material. This formula additionally takes into account the radii of curvature of the lens surfaces, lens thickness, object and image distances, and the chromatic aberration of the previous optical system. The presented formula is used for the derivation of rigorous equations for color correction of simple lens systems. To test them, this work presents examples of achromatic and apochromatic lenses that are designed by solving these equations. These results prove the usefulness of the presented approach for color correction and open the way for a broad and rigorous study of chromatic aberrations in various optical systems.

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“…The workers' topographic images were then classified and clustered following Charles and Brown's ocular morphology classes [3]: emmetropia, myopia, and hypermetropia. Emmetropia is considered perfect vision without defects, and the emmetropic eye shape is theoretically perfectly spherical [31]. Myopia and hypermetropia are clinical terms used to describe the eye shapes associated with errors in light refraction.…”

Section: Scheimpflug Imaging Acquisitionmentioning

confidence: 99%

How direct measurements of worker eyes with a Scheimpflug camera can affect lensdose coefficients in interventional radiology

Iori¹,

Isolan²,

Piergallini³

et al. 2021

J. Radiol. Prot.

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The 2013/59/Euratom Directive reduced the occupational exposure limits for the lens. Since it has become crucial to estimate the dose absorbed by the lens, we have studied the individual variability of exposed workers’ ocular conformations with respect to the data estimated from their personal dosimetry. The anterior eye conformations of 45 exposed workers were acquired using Scheimpflug imaging and classified according to their sight conditions (emmetropia, myopia or hypermetropia). Three eye models were computed, with two lens reconstructions, and implemented in an interventional radiology scenario using Monte Carlo code. The models were dosimetrically analysed by simulating setup A, a theoretical monoenergetic and isotropic photon source (10–150 keV) and setup B, a more realistic interventional setting with an angiographic x-ray unit (50, 75, 100 kV peak). Scheimpflug imaging provided an average anterior chamber depth of (6.4 ± 0.5) mm and a lens depth of (3.9 ± 0.3) mm, together with a reconstructed equatorial lens length of (7.1–10.1) mm. Using these data for model reconstruction, dose coefficients (DCs) were simulated for all ocular structures. Regardless of the eye model used, the DCs showed a similar trend with radiation energy, which highlighted that for the same energy and setup, no significant dependence on ocular morphology and workers’ visual conditions was observed. The maximum difference obtained did not exceed 1% for all eye models or structures analysed. Therefore, the individual variabilities of worker ocular anatomy do not require any additional correction, compared to the personal dosimetry data measured with a dedicated lens dosimeter. To estimate the dose absorbed by the other eye structures, it is, instead, essential to know the spectrum of the source that has generated the irradiation, since there are differences between monoenergetic sources and more realistic angiographic units.

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Wave Optics

Cited by 11 publications

References 7 publications

Unified phase-space framework for near-eye displays

Unified phase-space framework for near-eye displays

Exact formula for longitudinal chromatic aberration of a thick lens through design parameters

How direct measurements of worker eyes with a Scheimpflug camera can affect lensdose coefficients in interventional radiology

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