Presentation + Paper
21 August 2020 Wide angle lens with improved relative illumination characteristics
Zhenfeng Zhuang, Xavier Dallaire, Jocelyn Parent, Patrice Roulet, Simon Thibault
Author Affiliations +
Abstract
Consumers nowadays have a higher expectation on cameras beyond the function of taking photos or videos. In the early years, the applications of cameras with lenses were, however, very restricted. A new generation of super wide-angle lenses capture the user’s surroundings in full 360°, allowing the user’s friends or families to step inside our universe and experience it, live. However, for such wide angle lens coverage, the relative illumination of the lens must take the vector nature of the light into account. Consequently, the polarization of light becomes a critical parameter. Custom coatings are commonly spread on the lens surface to avoid light transmission polarization falloff. But for consumer applications, complex coating is not a practical solution because it raises cost. In this paper, we present how to take care of the polarization during the design and analysis of the lens design. Additionally, design tips are proposed to suppress the polarization impact.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhenfeng Zhuang, Xavier Dallaire, Jocelyn Parent, Patrice Roulet, and Simon Thibault "Wide angle lens with improved relative illumination characteristics", Proc. SPIE 11482, Current Developments in Lens Design and Optical Engineering XXI, 114820E (21 August 2020); https://doi.org/10.1117/12.2570710
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KEYWORDS
Polarization

Lens design

Optical design

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