Wide field of view lens design with uniform image illumination in capsule endoscope system
Sign Up to like & getrecommendations! Published in 2018 at "Microsystem Technologies"
DOI: 10.1007/s00542-018-4104-y
Abstract: This paper proposes a wide-angle lens design with uniform image illumination for a capsule endoscope (CE) system. Most endoscopies require the field of view (FOV) and aperture size as large as possible to capture more… read more here.
Keywords: uniform image; design uniform; image; lens design ... See more keywords
Defogging lens design for infrared laser active imaging by orbital angular momentum meta-surface
Sign Up to like & getrecommendations! Published in 2023 at "AIP Advances"
DOI: 10.1063/5.0145386
Abstract: Imaging in scattering media has been a big problem, as the ballistic light carrying object information is swamped by background noise, thus degrading the imaging quality. In addressing this issue, active illumination imaging technology has… read more here.
Keywords: lens design; defogging lens; orbital angular; angular momentum ... See more keywords
Thin lens narcissus model in infrared lens design with cooled detectors.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.447422
Abstract: A mathematical model of the narcissus effect in infrared lenses with cooled detectors is discussed. The proposed model enables optical designers to take the narcissus performance of infrared lenses into consideration in the thin lens… read more here.
Keywords: infrared lens; thin lens; lens design; narcissus model ... See more keywords
Lens design for parallel cylindrical anamorphic attachments with finite object distance.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.456177
Abstract: A lens design method for parallel cylindrical anamorphic attachments with finite object distance is provided, which includes paraxial lens design, thin lens design, and thick lens design. The paraxial lens data can be determined from… read more here.
Keywords: lens design; cylindrical anamorphic; design; parallel cylindrical ... See more keywords
Comparison of methods for end-to-end co-optimization of optical systems and image processing with commercial lens design software.
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DOI: 10.1364/oe.455669
Abstract: We compare three different methods to co-optimize hybrid optical/digital imaging systems with a commercial lens design software: conventional optimization based on spot diagram minimization, optimization of a surrogate criterion based on a priori equalization of… read more here.
Keywords: software; lens design; commercial lens; optimization ... See more keywords
Transferring freeform lens design into phase retrieval through intermediate irradiance transport.
Sign Up to like & getrecommendations! Published in 2019 at "Optics letters"
DOI: 10.1364/ol.44.005501
Abstract: Freeform lens design for the prescribed irradiance without thin element and paraxial approximations is very complicated. We propose to transport a point source irradiance before the required freeform lens into an intermediate irradiance estimate next… read more here.
Keywords: irradiance; lens design; phase retrieval; intermediate irradiance ... See more keywords