Dr. Håkon Jarand Dugstad Johnsen Profile

Dr. Håkon Jarand Dugstad Johnsen

Assoc Prof at Norwegian Univ of Science and Technology

SPIE Involvement:

Conference Co-Chair | Editor | Author

Publications (8)

Proceedings Article | 2 October 2024 Presentation

A visual tour through the nonimaging optics literature

Håkon J. D. Johnsen, Thomas Cooper, Lun Jiang, Lien Smeesters, Roland Winston

Proceedings Volume PC13132, PC1313201 (2024) https://doi.org/10.1117/12.3028858

KEYWORDS: Nonimaging optics, Visualization, Visual process modeling, Optics manufacturing, Manufacturing, Design, Data analysis

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Proceedings Article | 2 October 2024 Presentation

Freeform beam-down secondary concentrators for heliostat fields

Håkon J. D. Johnsen

Proceedings Volume PC13132, PC131320C (2024) https://doi.org/10.1117/12.3027725

KEYWORDS: Solar concentrators, Reflectors, Receivers, Solar thermal energy, Solar processes, Simulations, Compound parabolic concentrators

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Proceedings Article | 1 October 2024 Presentation + Paper

Designing freeform Fresnel lenses with continuous facets

Vegar Stubberud, Asunción Santamaría, Håkon J. Johnsen

Proceedings Volume 13132, 1313209 (2024) https://doi.org/10.1117/12.3027379

KEYWORDS: 3D modeling, Lenses, Solar concentrators, Fresnel lenses, Design, Lens design, Receivers, Mathematical optimization, Discontinuities, Sunlight, Reflection

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Proceedings Article | 1 October 2024 Presentation + Paper

Mixing rod with embedded mirrors

William Cassarly, Håkon J. Johnsen

Proceedings Volume 13132, 1313203 (2024) https://doi.org/10.1117/12.3037866

KEYWORDS: Mirrors, Light emitting diodes, Mirror surfaces, Prisms, Superposition, Reflection, Light sources and illumination, Reflectivity, Design, Nonimaging optics

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Proceedings Article | 3 October 2022 Presentation + Paper

In search of a sharper line focus: rotating the étendue

Håkon J. D. Johnsen, Juan C. Miñano

Proceedings Volume 12220, 1222006 (2022) https://doi.org/10.1117/12.2633358

KEYWORDS: Solar concentrators, Retroreflectors, Receivers, Optical simulations, Zemax, 3D modeling, Tolerancing, Retroreflector prisms, Polymethylmethacrylate, Optics manufacturing

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Proceedings Article | 20 August 2020 Presentation

Beam-steering lens arrays and ètendue-squeezing: a pathway towards a new class of solar concentrators?

Håkon Jarand Dugstad Johnsen, Astrid Aksnes, Jan Torgersen

Proceedings Volume 11495, 1149509 (2020) https://doi.org/10.1117/12.2567359

KEYWORDS: Solar concentrators, Nonimaging optics, Receivers, Sun, Tolerancing, Optical design, Illumination engineering

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Proceedings Article | 9 September 2019 Presentation + Paper

Pushing the limits of beam-steering lens arrays

Håkon J. Johnsen, Astrid Aksnes, Jan Torgersen

Proceedings Volume 11120, 111200B (2019) https://doi.org/10.1117/12.2528751

KEYWORDS: Solar energy, Sun, Optical tracking, Solar concentrators, Light sources and illumination, Optical simulations, Antireflective coatings, Grayscale lithography, Optical arrays, Optical design

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