End-to-end learned single lens design using fast differentiable ray tracing

2021 ◽  
Author(s):  
Zongling Li ◽  
Hou Yu ◽  
Zhipeng Wang ◽  
Fanjiao Tan ◽  
Jin Liu ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Lens Design ◽  
Single Lens ◽  
End To End

scholarly journals End-to-end complex lens design with differentiate ray tracing

2021 ◽  
Vol 40 (4) ◽  
pp. 1-13
Author(s):  
Qilin Sun ◽  
Congli Wang ◽  
Qiang Fu ◽  
Xiong Dun ◽  
Wolfgang Heidrich
Keyword(s):  
Ray Tracing ◽  
Lens Design ◽  
End To End

End-to-end complex lens design with differentiate ray tracing

2021 ◽  
Vol 40 (4) ◽  
pp. 1-13
Author(s):  
Qilin Sun ◽  
Congli Wang ◽  
Qiang Fu ◽  
Xiong Dun ◽  
Wolfgang Heidrich
Keyword(s):  
Ray Tracing ◽  
Lens Design ◽  
End To End

scholarly journals The McXtrace AstroX toolbox: a general ray tracing software package for end to end simulation of x-ray optics for astronomical instrumentation

2018 ◽  
Author(s):  
Erik B. Knudsen ◽  
Desiree Della Monica Ferreira ◽  
Niels Jørgen Westergaard ◽  
Sonny Massahi ◽  
Finn E. Christensen ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Software Package ◽  
Astronomical Instrumentation ◽  
Ray Optics ◽  
X Ray ◽  
End To End

scholarly journals Ray Tracing Comparison between Triple-Junction and Four-Junction Solar Cells in PMMA Fresnel-Based High-CPV Units

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2455 ◽  
Author(s):  
Juan Ferrer-Rodríguez ◽  
Alvaro Valera ◽  
Eduardo Fernández ◽  
Florencia Almonacid ◽  
Pedro Pérez-Higueras
Keyword(s):  
Solar Cells ◽  
Ray Tracing ◽  
Triple Junction ◽  
Optical Element ◽  
The Other ◽  
Optical Systems ◽  
Single Lens ◽  
The One ◽  
Optical Concentrator ◽  
Spectral Responses

The recent development of wafer bonded four-junction concentrator solar cells (FJSCs) with record efficiency among all the existent photovoltaic (PV) cells offers new possibilities for improving the High Concentrator PV (HCPV) technology. However, the concentrator optical systems utilized in HCPV modules may have to be adapted to the new requirements of FJSC in order to properly take advantage of the increased number of p-n junctions. This research theoretically compares two identical optical concentrator systems, a Frensel lens plus a kind of refractive SILO (SIngle-Lens-Optical element) secondary (both made of PMMA, poly(methyl methacrylate)), which are equipped with a typical triple-junction concentrator solar cell (TJSC) in the one case, and with an FJSC in the other case. Both HCPV units are analyzed through ray tracing optical simulations applying an exhaustive optical modelling that takes into account the spectral responses of the different subcells within the multi-junction cells. The HCPV unit with the FJSC and PMMA SOE (secondary optical element) shows much less efficiency than that with the TJSC due to the light absorption through the PMMA SOE in the wavelength range of the bottom subcell. Therefore, PMMA SOEs may be not appropriate for FJSC in general.

scholarly journals Analytic-domain lens design with proximate ray tracing

2010 ◽  
Vol 27 (8) ◽  
pp. 1791 ◽  
Author(s):  
Nan Zheng ◽  
Nathan Hagen ◽  
David J. Brady
Keyword(s):  
Ray Tracing ◽  
Lens Design ◽  
Analytic Domain

scholarly journals INTEGRATED RAY TRACING MODEL FOR END-TO-END PERFORMANCE VERIFICATION OF AMON-RA INSTRUMENT

2007 ◽  
Vol 24 (1) ◽  
pp. 69-78 ◽  
Author(s):  
Jae-Min Lee ◽  
Won-Hyun Park ◽  
Sun-Jeong Ham ◽  
Hyun-Su Yi ◽  
Jee-Yeon Yoon ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Performance Verification ◽  
End To End ◽  
Ray Tracing Model

scholarly journals End-to-end sensor and neural network design using differential ray tracing

2021 ◽  
Author(s):  
Aymeric Halé ◽  
Pauline Trouvé ◽  
Jean-Baptiste Volatier
Keyword(s):  
Neural Network ◽  
Network Design ◽  
Ray Tracing ◽  
End To End

scholarly journals Ray Tracing Methods for Correcting Chromatic Aberrations in Imaging Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Dmitry Reshidko ◽  
Masatsugu Nakanato ◽  
José Sasián
Keyword(s):  
Ray Tracing ◽  
Error Function ◽  
Chromatic Aberration ◽  
Imaging Systems ◽  
Optical Systems ◽  
Lens Design ◽  
Lens System ◽  
Chromatic Aberrations ◽  
Design Software ◽  
Aberration Type

The correction of chromatic aberrations is typically performed using aberration formulas or by using real ray tracing. While the use of aberration formulas might be effective for some simple optical systems, it has limitations for complex and fast systems. For this reason chromatic aberration correction is usually accomplished with real ray tracing. However, existing optimization tools in lens design software typically mix the correction of monochromatic and chromatic aberrations by construction of an error function that minimizes both aberrations at the same time. This mixing makes the correction of one aberration type dependent on the correction of the other aberration type. We show two methods to separate the chromatic aberrations correction of a lens system. In the first method we use forward and reverse ray tracing and fictitious nondispersive glasses, to cancel the monochromatic aberration content and allow the ray tracing optimization to focus mainly on the color correction. On the second method we provide the algorithm for an error function that separates aberrations. Furthermore, we also demonstrate how these ray tracing methods can be applied to athermalize an optical system. We are unaware that these simple but effective methods have been already discussed in detail by other authors.

scholarly journals Thin X ray Lens Design And Simulation

2019 ◽  
Author(s):  
Jiaming Shen ◽  
Jenny A Shen
Keyword(s):  
Ray Tracing ◽  
Focal Plane ◽  
Optical Axis ◽  
Dimensional Structure ◽  
Lens Design ◽  
Image Deconvolution ◽  
Parabolic Mirror ◽  
Polishing Process ◽  
X Ray ◽  
Transparent Substrate

A proposal of thin sandwich mirror array lens for X-ray telescope Wolter type lens is discussed. We discussed a process of design, fabrication of this thin X-ray lens and conducted a simulation and provided a measurement method for lens focal quality. The lens consists of two connected layers of arrays of rings of mirrors, one is of parabolic mirror and another is of hyperbolic mirrors. In each layer, the mirror coating is deposited on a substrate and next substrate in turn is deposited on this mirror film, leaving no air gap. Repeat this process to form an array of mirrors. Hence form a solid thin disc sandwich mirror lens and each ring of mirror can be curved precisely by polishing process. X ray travels into the transparent substrate and grazes on the surface of the mirror coating facing the substrate. Using geometrical optics ray tracing, we conducted simulation with two artificial distance stars as the source objects, a virtual lens of mirror array and a disc placed at the focal plane as the receiver CCD. Simulation shows that the star located off optical axis forms corn shape patterns by its ray crossing pointa on CCD disc. Those patterns may provide the baseline pattern for further image deconvolution or aberration reducing algorithm. The corn pattern is related to the dimensional structure of the lens and the space location of the star; hence, it contains some information about space location of the star. A simulation of ray tracing video is made as well. The thin sandwich lens we discussed in this paper may provide a way to build a large aperture telescope X ray lens

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