Consumer electronic optics: how small can a lens be: the case of panomorph lenses

Thibault, Simon; Parent, Jocelyn; Zhang, Hu; Du, Xiaojun; Roulet, Patrice

doi:10.1117/12.2062418

Cited by 7 publications

(7 citation statements)

References 2 publications

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“…The design is balanced in order to provide a good resolution across the entire field of view. As stated in [1], many components of the design, like elements thicknesses and perturbations tolerances, are at the limit of manufacturer's capability today.…”

Section: Design Presentationmentioning

confidence: 99%

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Wide-angle lens miniaturization through foveated imaging

Dallaire

Thibault

2015

SPIE Proceedings

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In the recent years, there have been many improvements in optics miniaturization, including wide-angle lenses. However, the design of a miniature wide-angle lens (FFOV 180°) is not a simple task. In order to correct aberrations that are issue from the large field of view, many lenses are necessary. Moreover, the amount of distortion is usually very high for those kinds of designs.It has been reported that distortion can be used as a design parameter in order to control the local magnification of the image across the field of view. This control of the distortion can be used to enhance the quality of the information present at the center of the image at the expense of the sides, leading to a foveated design. By carefully adjusting the resolution across the field of view, less care can be given to correcting defects issue from the edge of the field. This sort of compromise is a promising way to release some constraints and could, for example, allow a reduction of the number of lenses in the system. The present paper explores the effect of the control of distortion toward foveated imaging on a wide-angle lens. The goal is to assess its potential for allowing the simplification of the system. In order to achieve this objective, a miniature wide-angle lens is modified into different foveated designs, each of them with different resolution targets. The starting design is a state of the art commercial miniature wide-angle. The conditions in which the system can be reduced are then analyzed. Finally, the results and findings are discussed.

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Section: Design Presentationmentioning

confidence: 99%

“…Miniaturization of optical system has been an important issue in the last decades [1][2]. Constant improvements in optics manufacturing have led to the integration of miniature cameras in a wide variety of system [3].…”

Section: Introductionmentioning

confidence: 99%

Wide-angle lens miniaturization through foveated imaging

Dallaire

Thibault

2015

SPIE Proceedings

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“…The optical path of this optical system is shown in Fig. 5(a), which can be used in a surveillance system to monitor driving conditions [54], [55]. As shown in Fig.…”

Section: Panomorph Imaging Systemmentioning

confidence: 99%

Review on Panoramic Imaging and Its Applications in Scene Understanding

Gao¹,

Yang²,

Sheng³

et al. 2022

Preprint

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With the rapid development of high-speed communication and artificial intelligence technologies, human perception of real-world scenes is no longer limited to the use of small Field of View (FoV) and low-dimensional scene detection devices. Panoramic imaging emerges as the next generation of innovative intelligent instruments for environmental perception and measurement. However, while satisfying the need for large-FoV photographic imaging, panoramic imaging instruments are expected to have high resolution, no blind area, miniaturization, and multi-dimensional intelligent perception, and can be combined with artificial intelligence methods towards the next generation of intelligent instruments, enabling deeper understanding and more holistic perception of 360 • real-world surrounding environments. Fortunately, recent advances in freeform surfaces, thinplate optics, and metasurfaces provide innovative approaches to address human perception of the environment, offering promising ideas beyond conventional optical imaging. In this review, we begin with introducing the basic principles of panoramic imaging systems, and then describe the architectures, features, and functions of various panoramic imaging systems. Afterwards, we discuss in detail the broad application prospects and great design potential of freeform surfaces, thin-plate optics, and metasurfaces in panoramic imaging. We then provide a detailed analysis on how these techniques can help enhance the performance of panoramic imaging systems. We further offer a detailed analysis of applications of panoramic imaging in scene understanding for autonomous driving and robotics, spanning panoramic semantic image segmentation, panoramic depth estimation, panoramic visual localization, and so on. Finally, we cast a perspective on future potential and research directions for panoramic imaging instruments.

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“…We instead decided to target a simulation able to render varying designs, even complex ones with non-linear distortion [5,6]. It aims at providing an accurate rendering by using existing raytracing method data for estimating off axis aberrations and to add noise contribution, as well as relative illumination.…”

Section: Related Workmentioning

confidence: 99%

Accurate camera performance prediction using optical and imaging simulation pipeline for super wide-angle lens

Buquet

Larouche

Parent

et al. 2022

Current Developments in Lens Design and Optical Engineering XXIII

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Optical design process consists in minimizing aberrations using optimization methods. It relies on key performance indicators (KPIs), such as point spread function (PSF), Modulated transfer function (MTF), or relative illumination (RI) and spot sizes, that depend on lens elements aberrations. Their target values need to be defined -either for human or machine perception- at early stage of the design, which can be complex to do for challenging designs such as extended field of view. We developed an optical and imaging simulation pipeline able to render the effects of complex optical designs and image sensor on an initial aberration-free image. Extracting files from ray tracing software for simulating the PSF and sensor target information, the algorithm accurately renders off-axis aberrations with Zernike polynomials representation combined with noise contribution and relative illumination. The obtained image faithfully represents an optical system performance from the optics to the sensor component and we can then study the impact of additional aberration introduction.

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Consumer electronic optics: how small can a lens be: the case of panomorph lenses

Cited by 7 publications

References 2 publications

Wide-angle lens miniaturization through foveated imaging

Wide-angle lens miniaturization through foveated imaging

Review on Panoramic Imaging and Its Applications in Scene Understanding

Accurate camera performance prediction using optical and imaging simulation pipeline for super wide-angle lens

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