Publications related to Focus (optics)

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg2SiO4 laser

We report on high-field terahertz transients with 0.9-mJ pulse energy produced in a 400 mm(2) partitioned organic crystal by optical rectification of a 30-mJ laser pulse centered at 1.25 mu m wavelength. The phase-locked single-cycle terahertz pulses cover ...

Optical Society of America2014

Stationary solar concentrator delivering beyond the étendue law with homogeneous illumination

Marilyne Andersen, Boris Clément Karamata

We describe a concept for a novel stationary solar concentrator that relies on a new self-adaptive optical valve, non-imaging optics and the integrating sphere principle. Our analytical model reveals that this unique combination theoretically allows reachi ...

2014

Electrostatic self-assembly of microsphere lens arrays

Martinus Gijs, Thomas Lehnert, Matteo Cornaglia, Hui Yang

We propose a novel versatile method for the rapid and low-cost fabrication of microsphere arrays to be used as lenses of desired geometry and optical properties. Our method is based on the electrostatic self-assembly of dielectric microspheres in Parylene- ...

2014

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

Alexandre Schmid, Yusuf Leblebici, Vladan Popovic, Hossein Afshari, Abdulkadir Akin, Kerem Seyid, Ömer Cogal

Panoptic is a custom spherical light field camera used as a polydioptric system where imagers are distributed over a hemispherical surface, each having its own vision of the surroundings and a distinct focal plane. The spherical light field camera records ...

2013

Longitudinal-differential phase distribution near the focus of a high numerical aperture lens: Study of wavefront spacing and Gouy phase

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We present a longitudinal-differential (LD) phase distribution near the focus of a high numerical aperture (NA=0.9) aplanatic lens illuminated with a linearly polarized monochromatic plane wave. The Richards and Wolf method is used to compute field distrib ...

Taylor & Francis2013

The PANOPTIC Camera: A Plenoptic Sensor with Real-Time Omnidirectional Capability

Pierre Vandergheynst, Alexandre Schmid, Luigi Bagnato, Yusuf Leblebici, Laurent Jacques, Hossein Afshari

A new biologically-inspired vision sensor made of one hundred "eyes" is presented, which is suitable for real-time acquisition and processing of 3-D image sequences. This device, named the Panoptic camera, consists of a layered arrangement of approximately ...

Springer Verlag2013

Real-time Implementation of Gaussian Image Blending in a Spherical Light Field Camera

Alexandre Schmid, Yusuf Leblebici, Vladan Popovic, Hossein Afshari

Panoptic is a custom spherical light field camera used as a polydioptric system where imagers are distributed over a spherical geometry, each having its own vision of the surrounding and a distinct focal plane. The spherical light field camera records ligh ...

Ieee2013

Multiple contrast metrics from the measurements of a digital confocal microscope

Michaël Unser, Demetri Psaltis, Alexandre Goy

We describe various methods to process the data collected with a digital confocal microscope (DCM) in order to get more information than what we could get from a conventional confocal system. Different metrics can be extracted from the data collected with ...

Optical Soc Amer2013

Real-time FPGA implementation of linear blending vision reconstruction algorithm using a spherical light field camera

Alexandre Schmid, Yusuf Leblebici, Vladan Popovic, Hossein Afshari, Abdulkadir Akin

A custom spherical light-field camera used as a polydioptric system where imagers are distributed over a spherical geometry, each having its own vision of the surrounding and distinct focal plane. The spherical light-field camera is also an omnidirectional ...

2012

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Focus (optics)

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg2SiO4 laser

Stationary solar concentrator delivering beyond the étendue law with homogeneous illumination

Electrostatic self-assembly of microsphere lens arrays

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

Longitudinal-differential phase distribution near the focus of a high numerical aperture lens: Study of wavefront spacing and Gouy phase

The PANOPTIC Camera: A Plenoptic Sensor with Real-Time Omnidirectional Capability

Real-time Implementation of Gaussian Image Blending in a Spherical Light Field Camera

Multiple contrast metrics from the measurements of a digital confocal microscope

Real-time FPGA implementation of linear blending vision reconstruction algorithm using a spherical light field camera

Two-axis solar tracking accomplished through small lateral translations

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Chat with Graph Search

Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr:Mg2SiO4 laser

Longitudinal-differential phase distribution near the focus of a high numerical aperture lens: Study of wavefront spacing and Gouy phase

Stationary solar concentrator delivering beyond the étendue law with homogeneous illumination

Electrostatic self-assembly of microsphere lens arrays

Image Blending in a High Frame Rate FPGA-based Multi-Camera System

The PANOPTIC Camera: A Plenoptic Sensor with Real-Time Omnidirectional Capability

Real-time Implementation of Gaussian Image Blending in a Spherical Light Field Camera

Multiple contrast metrics from the measurements of a digital confocal microscope

Real-time FPGA implementation of linear blending vision reconstruction algorithm using a spherical light field camera

Two-axis solar tracking accomplished through small lateral translations