![]() ![]() EUMASLI started out as an EU-Erasmus curriculum project (2006–2009), and was first implemented with 16 participants from 8 countries from 2009 to 2011. It aims to prepare participants for research, development, and management functions in their respective countries. #CODIGOS ACTIVACION AIRY PROFESSIONAL#(The focal lengths quoted on smartphone cameras, typically between ranges of 18-60 mm, are equivalent focal lengths to produce equivalent images on a standard 35 mm format sensor).We are pleased to announce that EUMASLI, the European Master in Sign Language Interpreting, will be offered again from September 2013.ĮUMASLI is an innovative international master study programme that is intended to contribute to the development of the professional field of interpreting between deaf and hearing people in Europe. A smartphone aspheric lens, the eyepiece lens, will have a focal length of a few mms due to design restrictions of the slim smart- phone cases. Smartphone microscopes are not high magnification systems. varies from 0.5 for CAW110 lens to 0.7 for the budget lens, 0.9 for C170, 1.2 for CAY046 and 1.5 for CAY033. Magnifications for each lens are shown in Figure 2f (top. ![]() The known parameters of the distortion chart data allow for accurate determination of magnification in both spatial directions, using details of the IMX220 Sony Image Sensor in the Xperia Compact Z1 (1.2 x 1.2 μm pixel size). Edge effects are also apparent in the 4 plas- tic lenses, due to a decreased clear aperture of each lens over the smartphones camera lens. ![]() Clear off axis aberrations are present in all images, predominately pincushion, which is expected for short focal length high power aspherics when imaging in widefield. In all cases, a white light LED was used to illuminate the samples from below, overlaid with a single sheet of tissue paper to act as a diffuser. These same images are shown larger, and alongside similar images for a 100 μm distortion chart in Supplementary Figure S1. Figure 2a shows a column of images of a 500 μm period grid distor- tion target (Thorlabs, R1元S3P) taken with each lens. Comparable results were achieved with other leading camera models at the time, including the Apple iPhone6 and the Samsung Galaxy S5. #CODIGOS ACTIVACION AIRY FULL#Testing was done using a Sony Xperia Compact Z1 smartphone and Open Cam- era app (Mark Harman, V1.39) to access the full camera resolu- tion. These effects both frame any images, and allow for a degree of artistic flexibility, which the public found interesting and. The public confirmed our choice in terms of ease of use and quality of imaging, and we used these trials to verify that a lens with a degree of off-axis aberration and edge effects was in fact a positive. We trialled several of these lenses at public science festivals prior to the final selection, in pro- totype smartphone microscope platforms, with various smartphone models. It delivers approximately 3 μm optical resolution with a manageable working distance and large field of view. Balancing the field of view ( Figure 2a) with resolution and sampling ( Figure 2e), and cost and working distance ( Figure 2f) led to the selection of the CAY046 as our lens of choice (highlighted in blue in Figure 2f). For example, CAY033 gives high- est resolution, but has severely limited field of view and a very restrictive working distance that limits usability. microscope design must compromise between cost, functionality, and performance. ![]() All data taken with a Sony Xperia Z1 compact using maximum camera resolution. (F) shows the measured lens magnifications, calculated from (b) and (c), the average FWHM of the differentials (Res) in (d) and the manufacturers quoted working distance (WD) and cost per unit for each lens. This shows the measured diffractive limited focus for each lens. (E) shows a single example differential peak from (d) for each lens, normalised and overlaid at zero distance. (D) shows line profiles (black) through the selections shows in red in (c), along with first order differentials of those profiles (grey) and the associated multi-peak gaussian fits (red). (B) and (C) show cropped images of a standard USAF test chart. Each image is 3215x2945 pixels, scale bars 1000 μm. (A) shows cropped images of a 500 μm distortion test chart. The Budget lens is a non-descript low cost lens from unknown supplier. Lenses C170, C110, CAY033 and CAY046 are all high quality aspheric lenses from Thorlabs. The performance and imaging limits of 5 test lenses are quantified. ![]()
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