Viewing-zone enlargement method for sampled hologram that uses high-order diffraction

Mishina, Tomoyuki; Okui, Makoto; Okano, Fumio

doi:10.1364/ao.41.001489

Cited by 91 publications

(32 citation statements)

References 1 publication

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“…Enlarging the viewing angle for pixelated SLMs by using higher diffraction orders and spatial filtering is proposed in Ref. [23]. Under coherent illumination, a circular arrangement of SLMs puts less severe requirements to the space-bandwidth product of the display and supports full-parallax binocular vision at an increased viewing angle.…”

Section: D Content Generation From Holographic Datamentioning

confidence: 99%

3D Capture and 3D Contents Generation for Holographic Imaging

Stoykova¹,

Kang²,

Kim³

et al. 2017

Holographic Materials and Optical Systems

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The intrinsic properties of holograms make 3D holographic imaging the best candidate for a 3D display. The holographic display is an autostereoscopic display which provides highly realistic images with unique perspective for an arbitrary number of viewers, motion parallax both vertically and horizontally, and focusing at different depths. The 3D content generation for this display is carried out by means of digital holography. Digital holography implements the classic holographic principle as a two-step process of wavefront capture in the form of a 2D interference pattern and wavefront reconstruction by applying numerically or optically a reference wave. The chapter follows the two main tendencies in forming the 3D holographic content-direct feeding of optically recorded digital holograms to a holographic display and computer generation of interference fringes from directional, depth and colour information about the 3D objects. The focus is set on important issues that comprise encoding of 3D information for holographic imaging starting from conversion of optically captured holographic data to the display data format, going through different approaches for forming the content for computer generation of holograms from coherently or incoherently captured 3D data and finishing with methods for the accelerated computing of these holograms.

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Section: D Content Generation From Holographic Datamentioning

confidence: 99%

3D Capture and 3D Contents Generation for Holographic Imaging

Stoykova¹,

Kang²,

Kim³

et al. 2017

Holographic Materials and Optical Systems

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“…7. For an LWIR image sensor having the pixel size of 12 µm, the Nyquist frequency is about 40 lp/mm [15].…”

Section: Athermal and Achromatic Design Example Using A Tolerable mentioning

confidence: 99%

Athermal and Achromatic Design for a Night Vision Camera Using Tolerable Housing Boundary on an Expanded Athermal Glass Map

Ahn¹,

Kim²,

Park³

2017

Current Optics and Photonics

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We propose a new graphical method for selecting a pair of optical and housing materials to simultaneously athermalize and achromatize an LWIR optical system. To have a much better opportunity to select the IR glasses and housing materials, an athermal glass map is expanded by introducing the DOE with negative chromatic power. Additionally, from the depth of focus in an LWIR optical system, the tolerable housing boundary is provided to realize an athermal and achromatic system even for not readily available housing material. Thus, we can effectively determine a pair of optical and housing materials by reducing the thermal shift to be less than the depth of focus. By applying this method to design a night vision camera lens, the chromatic and thermal defocuses are reduced to less than the depth of focus, over the specified waveband and temperature ranges.

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“…where φ is the viewing-zone angle, d is the pixel pitch of the SLM, and λ is the wavelength of the light [9]. There has been significant research activity aimed at enlarging the viewing-zone angle [8,9], and the development of SLMs with very small pixel pitches has become extremely important for the realization of electronic holographic displays with wide viewing zone angles.…”

Section: Introductionmentioning

confidence: 99%

“…There has been significant research activity aimed at enlarging the viewing-zone angle [8,9], and the development of SLMs with very small pixel pitches has become extremely important for the realization of electronic holographic displays with wide viewing zone angles. We have previously proposed a magneto-optical SLM with submicron pixel sizes that is driven by spin-transfer switching (spin-SLM) [10,11], and have shown a 1-dimensional 1 × 10-pixel spin-SLM with a 1 µm pixel pitch without pixel-selection-transistors (passive matrix addressing) and successful control of each pixel by spin-transfer switching (STS) [12].…”

Section: Introductionmentioning

confidence: 99%

Two Micron Pixel Pitch Active Matrix Spatial Light Modulator Driven by Spin Transfer Switching

et al. 2016

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Abstract:We have developed an active matrix-addressed magneto-optical spatial light modulator driven by spin-transfer switching (spin-SLM) which has a 100 × 100 array pixel layout with a 2 µm pixel pitch. It has pixel-selection-transistors and logic circuits which convert serial data into parallel data to reduce input terminals. We have confirmed successful magnetization switching of each pixel by injecting a pulse current generated from the logic circuit, and its optical display capability by showing digital characters.

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Viewing-zone enlargement method for sampled hologram that uses high-order diffraction

Cited by 91 publications

References 1 publication

3D Capture and 3D Contents Generation for Holographic Imaging

3D Capture and 3D Contents Generation for Holographic Imaging

Athermal and Achromatic Design for a Night Vision Camera Using Tolerable Housing Boundary on an Expanded Athermal Glass Map

Two Micron Pixel Pitch Active Matrix Spatial Light Modulator Driven by Spin Transfer Switching

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