scholarly journals Optical design and performance of the SuperCam instrument for the Perseverance rover

2021 ◽  
Author(s):  
Pernelle Bernardi ◽  
Laurent Parès ◽  
Raymond Newell ◽  
Tony Nelson ◽  
Olivier Gasnault ◽  
...  
Keyword(s):  
Optical Design ◽  
And Performance

scholarly journals A Review of Daylighting System: For Prototype Systems Performance and Development

Energies ◽  
2019 ◽  
Vol 12 (15) ◽  
pp. 2863 ◽  
Author(s):  
Allen Jong-Woei Whang ◽  
Tsai-Hsien Yang ◽  
Zhong-Hao Deng ◽  
Yi-Yung Chen ◽  
Wei-Chieh Tseng ◽  
...  
Keyword(s):  
Optical Design ◽  
Controversial Issue ◽  
Tracking Systems ◽  
Valuable Resource ◽  
Research Directions ◽  
Active Systems ◽  
Solar Tracking ◽  
And Performance ◽  
Daylight Performance ◽  
The Cost

Daylighting systems make daylight illuminance possible, and the development of prototype daylighting systems can provide more efficient daylight illuminance. The purpose of this article is to review the development and performance of prototype daylighting systems in the last decade. The passive and active daylighting systems are listed separately and divided into the four categories by the presence and absence of hybrid. Each prototype daylighting system was evaluated in terms of cost and daylight performance and as well as their novel optical design. We evaluated the architecture and daylighting principles of each system by reviewing individual prototype daylighting systems. The cost of prototype systems still poses a challenge to development. How to use passive or active systems in different environments and whether or not electrical lighting assistance is needed is a controversial issue. However, active daylighting systems equipped with solar tracking systems are still mainstream. This research is a valuable resource for daylight researchers and newcomers. It is helpful to understand the advantages of various prototype daylighting systems and commercial daylighting systems that have been developed for many years; moreover, it is also possible to know the research directions suggested by the prototype daylighting systems. These will be of further use in developing innovative and better daylighting systems and designs.

scholarly journals Optical design and performance of the inelastic scattering beamline at the National Synchrotron Light Source

1995 ◽  
Vol 66 (2) ◽  
pp. 1699-1702 ◽  
Author(s):  
C.‐C. Kao ◽  
K. Hamalainen ◽  
M. Krisch ◽  
D. P. Siddons ◽  
T. Oversluizen ◽  
...  
Keyword(s):  
Inelastic Scattering ◽  
Light Source ◽  
Optical Design ◽  
National Synchrotron Light Source ◽  
Synchrotron Light ◽  
And Performance

The StarLight space interferometer: optical design and performance modeling

2003 ◽  
Author(s):  
Stefan R. Martin ◽  
Rhonda M. Morgan ◽  
Steven M. Gunter ◽  
Randall D. Bartos
Keyword(s):  
Performance Modeling ◽  
Optical Design ◽  
Space Interferometer ◽  
And Performance

MightySat II.1: an optical design and performance update

1997 ◽  
Author(s):  
Leonard John Otten III ◽  
Andrew D. Meigs ◽  
Frederick P. Portigal ◽  
Bernard A. Jones ◽  
R. Glenn Sellar ◽  
...  
Keyword(s):  
Optical Design ◽  
And Performance

ITER upper port wide angle viewing system optical design and performance analysis

2018 ◽  
Vol 136 ◽  
pp. 936-944 ◽  
Author(s):  
Ad Verlaan ◽  
Peter Giesen ◽  
Pascal van Grol ◽  
Maurice Limpens ◽  
Jeroen Heijmans ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Optical Design ◽  
Wide Angle ◽  
And Performance

Infrared Vision Using an Uncooled Thermo-Opto-Mechanical Camera: Design, Microfabrication, and Performance

1999 ◽  
Author(s):  
M. Mao ◽  
T. Perazzo ◽  
O. Kwon ◽  
Y. Zhao ◽  
A. Majumdar ◽  
...  
Keyword(s):  
Optical Design ◽  
Thermomechanical Analysis ◽  
Absorption Enhancement ◽  
Geometrical Shape ◽  
Ir Absorption ◽  
Residual Tensile Stress ◽  
Ir Radiation ◽  
Ir Camera ◽  
Optical Readout ◽  
And Performance

Abstract An uncooled infrared (IR) camera that is based on thermomechanical sensing and visible optical readout has been developed. The system contains a focal plane array (FPA) consisting of bimaterial cantilever beams made of silicon nitride (SiNx) and gold (Au) in each pixel. Absorption of incident IR radiation in the 8–14 μm wavelength range by SiNx in each cantilever beam raises its temperature, resulting in proportional deflection due to mismatch in thermal expansion of the two cantilever materials. To maximize the thermal performance, the conductance of each pixel was reduced to about five times of the radiation conductance. Based on thermomechanical analysis, the geometrical shape of the pixels were designed to maximize the cantilever sensitivity within the constraints of the pixel size and layout. Microfabrication of stress-balanced bimaterial cantilevers was achieved by varying the silicon concentration along the thickness of the SiNx films in order to balance the residual tensile stress in the Au film and the Cr adhesion layer between Au and SiNx. The optical design of each pixel was based on IR properties of the cantilever materials, IR absorption enhancement due to resonance cavity formation, as well as visible optics of deformable diffraction gratings. The latter formed the foundation for two different optical readout techniques that were both used for IR imaging. The results suggest that objects at temperatures as low as 30 °C can be imaged with the best noise-equivalent temperature difference (NETD) in the range of 2–5 K. It is estimated that further improvements that are currently being pursued can improve NETD to about 10 mK.

Optical design and performance of the Stereoscopic Imaging Channel for the ESA BepiColombo mission

2017 ◽  
Author(s):  
Vania Da Deppo ◽  
Emanuele Simioni ◽  
Donato Borrelli ◽  
Michele Dami ◽  
Riccardo Paolinetti ◽  
...  
Keyword(s):  
Optical Design ◽  
Stereoscopic Imaging ◽  
And Performance
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