Design of diffractive singlets for monochromatic imaging

Buralli, Dale A.; Morris, G. Michael

doi:10.1364/ao.30.002151

Cited by 43 publications

(16 citation statements)

References 19 publications

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“…(3) In theory, a thin diffractive singlet for monochromatic imaging does not contribute Petzval field Curvature [8], that is, petzval field curvature coefficient in the Seidal coefficients of aberration is zero, S. =0.…”

Section: Fig 3 Relationship Between Step Of Multiphase Lens and Diffmentioning

confidence: 99%

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Diffractive objective in night-vision goggles

Zhou

1998

SPIE Proceedings

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Conventional refractive or reflection-refractive objectives for Night Vision Goggle (NVG) are more complicated because they require larger relative aperture and better correction of aberrations in broadband spectral response.However, further improvement ofthis objective is limited by conventional optics.Diffractive optics has some unique features, which can improve the imaging quality of the conventional optics system. First, effective dispersion of diffractive optics is opposite in sign to that of refractive elements, the monochromatic aberrations are easier to be corrected. Second, diffractive optics does not contribute Petzval field curvature. Third, another advantages of diffractive optics applied to the objective design are to reduce number of optical elements, overall weight and system cost. Finally, optical imaging quality of NVG that compares with the conventional optics is improved significantly.The paper will describe two hybrid diffractive-refractive objective design configurations of NVG and show comparable or improved imaging quality compared with conventional six-element objective.

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Section: Fig 3 Relationship Between Step Of Multiphase Lens and Diffmentioning

confidence: 99%

“…Because of symmetry about Z axis, the phase polynomial includes only the even power of radius. q5(r)=a1r2' (8) By optimization of imaging quality, the coefficients a. in phase t4(r) can be solved. Finally, a set of data that express parameters ofphase FPL mask [3] can be determined.…”

Section: Hybrid Diffractive-refractive Objective For Night Vision Gogglementioning

confidence: 99%

Diffractive objective in night-vision goggles

Zhou

1998

SPIE Proceedings

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“…However, there is a diffractive optical element that can combine these two functions. For quite a long time the attempts have been made to use a diffractive lens in various applications [4][5][6][7][8][9]. Including the works dedicated to the spectral properties of the diffractive lens [9].…”

Section: Introductionmentioning

confidence: 99%

Diffraction lens in imaging spectrometer

Blank¹,

Скиданов²

2015

Collection of Selected Papers of the I International Conference on Information Technology and Nanotechnology

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Abstract. А possibility of using a diffractive lens as the simplest imaging spectrometer was considered. An experimental construction of the spectral imaging for white, red and green LEDs was conducted. When processing the images the influence of the scattered components of the initial point and nearly points of the image was taken into consideration. There was made a comparison of the received spectral distribution with the spectra of these LEDs, received by means of spectrometer. Root-mean-square error (RMSE) from 8 to 13%.Keywords: diffraction lens, imaging spectrometer, spectral image. Citation: Blank V.A., Skidanov R.V. Diffraction lens in imaging spectrometer.

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“…Furthermore, they enable the formation of light beams with properties that can not otherwise be obtained by classical optical refractive elements. However, DOE are characterised by significant chromatic aberration, which can have both negative and positive impacts upon the imaging system [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Study of the chromatic properties of harmonic diffractive lens

Kovalenko¹

2015

Collection of Selected Papers of the I International Conference on Information Technology and Nanotechnology

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Abstract. This work is devoted to the study of the axial image point formed by a layered diffractive lens illuminated by laser light of different wavelengths. The influence of chromaticity can be identified when there is a change of quantisation levels and harmonic interval (bringing the phase to the level 2πn). The influence of aberrations introduced in the form of converging or diverging conical and cubic wavefronts will also be considered in this study. Keywords: diffractive optical elements, aberrations, chromatic properties of lensCitation: Kovalenko AI. Study of the chromatic properties of harmonic diffractive lens.

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Design of diffractive singlets for monochromatic imaging

Cited by 43 publications

References 19 publications

Diffractive objective in night-vision goggles

Diffractive objective in night-vision goggles

Diffraction lens in imaging spectrometer

Study of the chromatic properties of harmonic diffractive lens

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