The narrow angle camera of the MPCS suite for the MarcoPolo ESA Mission: requirements and optical design solutions

2010 ◽  
Author(s):  
Vania Da Deppo ◽  
Gabriele Cremonese ◽  
Giampiero Naletto
Keyword(s):  
Optical Design ◽  
Narrow Angle ◽  
Design Solutions

Compact optical design solutions using focus tunable lenses

2011 ◽  
Author(s):  
M. Blum ◽  
M. Büeler ◽  
C. Grätzel ◽  
M. Aschwanden
Keyword(s):  
Optical Design ◽  
Design Solutions ◽  
Tunable Lenses

Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

1970 ◽  
Vol 28 ◽  
pp. 360-361
Author(s):  
John W. Coleman
Keyword(s):  
Boundary Conditions ◽  
High Performance ◽  
Force Fields ◽  
Optical Design ◽  
Direct Conversion ◽  
Design Engineering ◽  
Design Data ◽  
Scalar Potentials ◽  
Geometric Elements ◽  
At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

Concerning the Concept of Light-Colour Arrangement of the Urban Environment in the Central Part of Tyumen

2020 ◽  
pp. 34-42
Author(s):  
Nikolay I. Shchepetkov ◽  
Svetlana B. Kapeleva ◽  
Denis V. Bugaev ◽  
Gregory S. Matovnikov ◽  
Anna S. Kostareva
Keyword(s):  
Urban Environment ◽  
Comprehensive Analysis ◽  
Assessment Criteria ◽  
Field Observations ◽  
General Plan ◽  
Design Solutions ◽  
Methodological Principles ◽  
The City

The article provides a comprehensive analysis of outdoor lighting in the central part of Tyumen (with consideration of conducted field observations) and prospects of its development on the basis of the general plan of illumination of the central part of the city being under design. Main provisions of this general plan as well as methodological principles and assessment criteria of design solutions illustrat-ed by photographs, schemes and visualisations of the illuminated objects are described.

Lighting of Engineering Structures and Industrial Facilities New Aspects of the Topic

2018 ◽  
pp. 29-36
Author(s):  
Nikolai I. Shepetkov ◽  
George N. Cherkasov ◽  
Vladimir A. Novikov
Keyword(s):  
Fundamental Problem ◽  
Lighting Design ◽  
Aesthetic Value ◽  
Engineering Structures ◽  
Industrial Facilities ◽  
Artificial Lighting ◽  
Industrial Structures ◽  
Design Solutions ◽  
Architectural Lighting ◽  
The Aesthetic

This paper considers the fundamental problem of artificial lighting in various types and scales of industrial facilities, focusing on exterior lighting design solutions. There is a lack of interest from investors, customers and society in high­quality lighting design for industrial facilities in Russia, which in many cities are very imaginative structures, practically unused in the evening. Architectural lighting of various types of installations is illustrated with photographs. The purpose of the article is to draw attention to the aesthetic value of industrial structures, provided not only by the architectural, but also by a welldesigned lighting solution.

Influence of the Aperture Edge Diffraction Effects on the Mutual Coupling Compensation Technique in Small Planar Antenna Arrays

2011 ◽  
Vol 57 (1) ◽  
pp. 115-120 ◽  
Author(s):  
Mariusz Zamłyński ◽  
Piotr Słobodzian
Keyword(s):  
Antenna Arrays ◽  
Mutual Coupling ◽  
Planar Antenna ◽  
Sidelobe Level ◽  
Edge Diffraction ◽  
Narrow Angle ◽  
Compensation Technique ◽  
Diffraction Effects ◽  
Linear Antenna Arrays

Influence of the Aperture Edge Diffraction Effects on the Mutual Coupling Compensation Technique in Small Planar Antenna Arrays In this paper the quality of a technique to compensate for mutual coupling (and other phenomena) in small linear antenna arrays is investigated. The technique consists in calculation of a coupling matrix, which is than used to determine corrected antenna array excitation coefficients. Although the technique is known for more than 20 years, there is still very little information about how different phenomena existing in a real antenna arrays influence its performance. In this paper two models of antenna arrays are used. In the first model the effect of mutual coupling is separated from the aperture edge diffraction. In the second model antenna both mutual coupling and aperture edge diffraction effects are included. It is shown that mutual coupling itself can be compensated very well and an ultralow sidelobe level (i.e. -50 dB) could be achieved in practice. In the presence of diffraction effects -46.3 dB sidelobe level has been attained, but radiation pattern can be controled only in narrow angle range (i.e. up to ±60°).

Design solutions for well casing deformation control

2019 ◽  
pp. 22-25
Author(s):  
M.V. Leontiev ◽  
◽  
M.E. Koval ◽  
A.A. Voronin ◽  
A.Yu. Kornev ◽  
...  
Keyword(s):  
Deformation Control ◽  
Design Solutions ◽  
Casing Deformation

Optical design to boost the performance of perovskite based tandem solar cells

2018 ◽  
Author(s):  
Miguel Anaya ◽  
Gabriel Lozano ◽  
Mauricio Calvo ◽  
Hernán Míguez
Keyword(s):  
Solar Cells ◽  
Optical Design ◽  
Tandem Solar Cells
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