scholarly journals The Modernization of the Pulkovo Photographic (Photoelectric) Vertical Circle by a CCD Array

1995 ◽  
Vol 167 ◽  
pp. 333-334
Author(s):  
G. A. Goncharov ◽  
B. K. Bagildinsky ◽  
E. V. Kornilov ◽  
D. D. Polojentsev ◽  
K. V. Rumyantsev ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Length ◽  
Wide Field ◽  
List Type ◽  
Type Number ◽  
Pulkovo Observatory ◽  
Vertical Circle ◽  
Ccd Array ◽  
Field Imaging ◽  
Wide Field Imaging

The Zverev photographic vertical circle (PVC) of the Pulkovo observatory is in the process of modernization. The features of the vertical circle are: a)Maksutov mirror-lens optical system with small aberrations and wide passband: aperture: 20 cm, focal length: 200 cm, focal scale: 103 arcsec/mm.b)Very compact instrument: 140 cm total length, 60 cm — tube.c)Wide field: 25 × 25 mm = 40′ × 40′. Wide-field imaging can be combined with meridian observations.d)Easily-reversible instrument: reversing takes less than 30 seconds.e)Two divided vertical circles of glass. Photoelectric circle reading microscopes.f)Photographic micrometer in focal plane. This will be changed with a CCD micrometer.

Matching A Curved Focal Plane With CCD's: Wide Field Imaging Of Glancing Incidence X-Ray Telescopes

1987 ◽  
Author(s):  
J . A. Nousek ◽  
G. P. Garmire ◽  
G. R. Ricker ◽  
M. w. Bautz ◽  
A. M. Levine ◽  
...  
Keyword(s):  
Focal Plane ◽  
Wide Field ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging

scholarly journals Wide Field Imaging and Photometry by 2k × 2k CCD

1994 ◽  
Vol 161 ◽  
pp. 17-19
Author(s):  
J.-S. Chen
Keyword(s):  
Field Of View ◽  
Large Field ◽  
Wide Field ◽  
List Type ◽  
Schmidt Telescope ◽  
Compressed Images ◽  
Basic Performance ◽  
Uv Coating ◽  
Field Imaging ◽  
Wide Field Imaging

The Ford Aerospace 2048 × 2048 CCD with UV coating is used at the BAO 60/90 cm f/3 Schmidt telescope focal plane, giving a field-of-view of about one square degree and spatial resolution of 1.67 arcsecond per pixel. The paper reviews the following topics: 1) basic performance of the system; 2) anti-blooming technique for a large field CCD; 3) flat fielding for a large field CCD; 4) photometric properties of compressed images.

scholarly journals Pickles: A Wide-Field Imaging Tool

1994 ◽  
Vol 161 ◽  
pp. 356-358
Author(s):  
L.W. Fredrick ◽  
G.F. Benedict ◽  
R. Duncombe ◽  
O.G. Franz ◽  
P.D. Hemenway ◽  
...  
Keyword(s):  
Focal Plane ◽  
Wide Field ◽  
Space Telescope ◽  
Cd Rom ◽  
Imaging Tool ◽  
Star Catalogue ◽  
Guide Star ◽  
Field Imaging ◽  
Wide Field Imaging

The program Pickles was developed as an aid for planning HST observations using the Space Telescope Science Institute's Guide Star Catalogue, which was generated from wide-field Schmidt plates. Pickles reads the catalogue from CD-ROM and then displays a one-degree square field. The HST focal plane apertures can then be displayed singly or in any combination which is at the choice of the observer (Fig. 1). The user can generate an aperture of a different type if need be. The stars can be displayed as open or filled circles with their relative sizes indicating their magnitude. Stars or other objects can be added and saved with the field.

scholarly journals Camera-based localization microscopy optimized with calibrated structured illumination

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Martin Schmidt ◽  
Adam C. Hundahl ◽  
Henrik Flyvbjerg ◽  
Rodolphe Marie ◽  
Kim I. Mortensen
Keyword(s):  
Data Analysis ◽  
Super Resolution ◽  
Wide Field ◽  
Structured Illumination ◽  
Uniform Illumination ◽  
Localization Microscopy ◽  
Localization And Tracking ◽  
Field Imaging ◽  
Wide Field Imaging ◽  
Localization Information

AbstractUntil very recently, super-resolution localization and tracking of fluorescent particles used camera-based wide-field imaging with uniform illumination. Then it was demonstrated that structured illuminations encode additional localization information in images. The first demonstration of this uses scanning and hence suffers from limited throughput. This limitation was mitigated by fusing camera-based localization with wide-field structured illumination. Current implementations, however, use effectively only half the localization information that they encode in images. Here we demonstrate how all of this information may be exploited by careful calibration of the structured illumination. Our approach achieves maximal resolution for given structured illumination, has a simple data analysis, and applies to any structured illumination in principle. We demonstrate this with an only slightly modified wide-field microscope. Our protocol should boost the emerging field of high-precision localization with structured illumination.

scholarly journals Protocol for constructing an extensive cranial window utilizing a PEO-CYTOP nanosheet for in vivo wide-field imaging of the mouse brain

2021 ◽  
Vol 2 (2) ◽  
pp. 100542
Author(s):  
Taiga Takahashi ◽  
Hong Zhang ◽  
Kohei Otomo ◽  
Yosuke Okamura ◽  
Tomomi Nemoto
Keyword(s):  
Mouse Brain ◽  
Wide Field ◽  
Cranial Window ◽  
Field Imaging ◽  
Wide Field Imaging

scholarly journals The Virmos Project

1998 ◽  
Vol 11 (1) ◽  
pp. 492-492
Author(s):  
D. MacCagni ◽  
O. Le Fèvre ◽  
G. Vettolani ◽  
D. Mancini ◽  
J.P. Picat ◽  
...  
Keyword(s):  
Large Scale ◽  
Large Scale Structure ◽  
Scale Structure ◽  
Structure Evolution ◽  
Wide Field ◽  
Look Back ◽  
Field Imaging ◽  
Wide Field Imaging

Large and deep spectroscopic samples of galaxies are essential to study galaxies and large scale structure evolution out to look-back times ~ 10% the current age of the vmiverse. Keeping this scientific and observational goal in mind, we designed and are presently building two wide-field imaging spectrographs to be installed at the Nasmyth foci of the ESO-VLT Unit Telescopes 3 and 4.

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