scholarly journals Wide-Field-Imaging 3-Mirror-Systems by High Light Gathering Power and a Wide-Field Optical System for the ‘Large Imaging Telescope’ (Lite)

1994 ◽  
Vol 161 ◽  
pp. 101-107
Author(s):  
U. Laux
Keyword(s):  
Optical System ◽  
High Light ◽  
Field Of View ◽  
Wide Field ◽  
Light Gathering Power ◽  
Imaging Telescope ◽  
Light Gathering ◽  
Field Imaging ◽  
Wide Field Imaging

The desire of astronomers for wide field telescope systems which surpass the RCC (1:8 max. 1.5 degree) in light gathering power and field of view are relative concrete today. For this type of telescope, detectors planned ARE CCDs in multichip arrangement.

scholarly journals Lite: The Large Imaging Telescope

1994 ◽  
Vol 161 ◽  
pp. 73-76
Author(s):  
L. Vigroux
Keyword(s):  
Wide Field ◽  
Large Telescope ◽  
Very Large Telescope ◽  
Imaging Telescope ◽  
Field Imaging ◽  
Wide Field Imaging

It was realised very early in the development of the ESO 16 metre equivalent Very Large Telescope (VLT) that wide-field imaging is too complicated and costly to implement on the VLT itself and should be done with a smaller telescope.

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.

Design of a wide-field imaging optical system with super-resolution reconstruction

2015 ◽  
Author(s):  
Xiaopeng Shao ◽  
Jie Xu ◽  
Jiaoyang Wang ◽  
Xiaodong Chen ◽  
Rui Gong ◽  
...  
Keyword(s):  
Optical System ◽  
Super Resolution ◽  
Wide Field ◽  
Field Imaging ◽  
Wide Field Imaging

scholarly journals Fabrication and Characterization of Curved Compound Eyes Based on Multifocal Microlenses

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 854 ◽  
Author(s):  
Gaoge Lian ◽  
Yongshun Liu ◽  
KeKai Tao ◽  
Huaming Xing ◽  
Ruxia Huang ◽  
...  
Keyword(s):  
Compound Eye ◽  
Accurate Method ◽  
Field Of View ◽  
Curved Surface ◽  
Compound Eyes ◽  
Wide Field ◽  
Wide Field Of View ◽  
Field Imaging ◽  
Wide Field Imaging

Curved compound eyes have generated great interest owing to the wide field of view but the application of devices is hindered for the lack of proper detectors. One-lens curved compound eyes with multi-focal microlenses provide a solution for wide field imaging integrated in a commercial photo-detector. However, it is still a challenge for manufacturing this kind of compound eye. In this paper, a rapid and accurate method is proposed by a combination of photolithography, hot embossing, soft photolithography, and gas-assisted deformation techniques. Microlens arrays with different focal lengths were firstly obtained on a polymer, and then the planar structure was converted to the curved surface. A total of 581 compound eyes with diameters ranging from 152.8 µm to 240.9 µm were successfully obtained on one curved surface within a few hours, and the field of view of the compound eyes exceeded 108°. To verify the characteristics of the fabricated compound eyes, morphology deviation was measured by a probe profile and a scanning electron microscope. The optical performance and imaging capability were also tested and analyzed. As a result, the ommatidia made up of microlenses showed not only high accuracy in morphology, but also imaging uniformity on a focal plane. This flexible massive fabrication of compound eyes indicates great potential for miniaturized imaging systems.

scholarly journals Subaru Hyper Suprime Cam Survey of the Andromeda Halo

2015 ◽  
Vol 11 (S317) ◽  
pp. 278-279
Author(s):  
Masashi Chiba ◽  
Mikito Tanaka ◽  
Yutaka Komiyama
Keyword(s):  
Progress Report ◽  
Field Of View ◽  
Wide Field ◽  
Field Imaging ◽  
Wide Field Imaging

AbstractWe present a progress report on our deep and wide-field imaging survey of the Andromeda halo with Hyper Suprime Cam (HSC) mounted on Subaru. HSC is the upgraded prime focus camera after Suprime-Cam, having a field of view of 1.77 square degree (1.5 degree in diameter), namely about 10 times larger than that of Suprime-Cam. This camera will thus offer us great opportunities to explore unique and legacy surveys for the Andromeda halo, as well as for other Galactic Archaeology science cases.

scholarly journals Wide-field X-ray Optics

1995 ◽  
Vol 151 ◽  
pp. 435-438
Author(s):  
René Hudec ◽  
Adolf Inneman ◽  
Ladislav Pina ◽  
Petr Řehák ◽  
Paul Gorenstein
Keyword(s):  
Field Of View ◽  
Innovative Technology ◽  
Wide Field ◽  
Two Dimensional ◽  
Ray Optics ◽  
X Ray ◽  
Field Imaging ◽  
Wide Field Imaging ◽  
Lobster Eye

AbstractClassical X-ray mirror optics usually has a limited Field of View (FoV) of ∼ 1°. Wide-field imaging can be achieved by lobster-eye type reflecting X-ray optics. We summarise several different approaches and suggest an innovative technology for the production of X-ray reflecting flats and cells necessary to develop one- or two-dimensional wide-field X-ray optics. The technology is based on double-sided, replicated reflecting foils produced by electroforming and CF/composite technologies.

scholarly journals The UV Content of Virgo Cluster Galaxies

1995 ◽  
Vol 164 ◽  
pp. 450-451
Author(s):  
Noah Brosch
Keyword(s):  
Preliminary Analysis ◽  
Virgo Cluster ◽  
Wide Field ◽  
Space Astronomy ◽  
Cluster Galaxies ◽  
Cluster Region ◽  
Imaging Telescope ◽  
Field Imaging ◽  
Wide Field Imaging

I present a preliminary analysis of three UV images of the Virgo cluster region, obtained by the FAUST experiment (Bowyer et al. 1993) in April 1992. FAUST is a wide-field imaging telescope covering an 8° area with effective resolution of 3′.5. The experiment was constructed by the Berkeley Space Astronomy Group together with the Laboratoire d'Astrophysique Spatiale of the CNES. It operated on board the Shuttle during the mission ATLAS-1.

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