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pro vyhledávání: '"Telephoto lens"'
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Autor:
Gao, Weichuan, Sasian, Jose
We discuss the behavior of air lenses in lens design. The structural aberration coefficients of a thin air lens are derived and compared with their glass thin lens counterpart. Examples are provided for a telephoto lens and the Monochromatic Quartet
Externí odkaz:
http://hdl.handle.net/10150/627181
http://arizona.openrepository.com/arizona/handle/10150/627181
http://arizona.openrepository.com/arizona/handle/10150/627181
Publikováno v:
Oftalʹmologiâ, Vol 18, Iss 2, Pp 290-295 (2021)
Thermography is the method of noninvasive registration of visible image of the own infrared radiation of the human body surface by special devices. The physiological basis of its application in medical diagnostics is the amplification of infrared rad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::174e7920d13e0729a0f3722a21cf2afd
https://doi.org/10.18008/1816-5095-2021-2-290-295
https://doi.org/10.18008/1816-5095-2021-2-290-295
Publikováno v:
Rock Mechanics and Rock Engineering. 54:2369-2382
The Structure from Motion ( $${\text{SfM}}$$ ) photogrammetric technique has emerged as an efficient alternative for remote 3D rock characterization, compared to laser scanner (LiDAR) or stereoscopic photogrammetry, due to its economy and ease of use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbbb3a52707b192fe0498f7bf1a1aa42
https://doi.org/10.1007/s00603-021-02373-7
https://doi.org/10.1007/s00603-021-02373-7
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 11500-11507 (2021)
A georeferenced orthophoto built from aerial images is the basic resource for various of remote sensing applications. As traditional low flight altitude aerial photographic survey is hard to handle large areas, higher altitude brings better survey ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::938c2de35ce8c76b292b982395ddbcc3
https://ieeexplore.ieee.org/document/9599576/
https://ieeexplore.ieee.org/document/9599576/
Autor:
Bradley Gearhart, Dan MacIsaac
Publikováno v:
The Physics Teacher. 58:8-11
Light rays refract when passing through pockets of transparent fluids with different indices of refraction such as ordinary air pockets of varying temperature. This phenomenon makes night stars twinkle, distorts views above hot asphalt roads and hot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1f1d5e766ca936263753fba7a450492
https://doi.org/10.1119/1.5141961
https://doi.org/10.1119/1.5141961
Autor:
Peter Trillenberg
Publikováno v:
American Journal of Physics. 87:839-845
Due to the elliptic shape of Earth's orbit around the Sun, the apparent diameter of the Sun varies throughout the year. With digital analysis of a number of images at a given date, the effect can be demonstrated with a digital single lens reflection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5b80c0e95bd4dcacf9850d41533d2c2
https://doi.org/10.1119/1.5119510
https://doi.org/10.1119/1.5119510
Publikováno v:
AOPC 2020: Telescopes, Space Optics, and Instrumentation.
This paper proposes a improved method for measuring the focal length of a telephoto lens. In this paper, a photoelectric theodolite with high accuracy of angle measurement is used. Besides, a CMOS camera is used to take a position image of the center
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dab4d05ac6424272b7aaf44a7f752fe
https://doi.org/10.1117/12.2579825
https://doi.org/10.1117/12.2579825
Publikováno v:
AOPC 2020: Optical Sensing and Imaging Technology.
Super-wide FOV lens has a short focal length, making the detection distance shorter. To suit the need of long detection distance, the inversed telephoto structure is used. In this paper, we designed a super-wide FOV camera system with a negative-posi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b18a2b528aec6a6d26a66d9ada717bf
https://doi.org/10.1117/12.2579460
https://doi.org/10.1117/12.2579460
Publikováno v:
The Laryngoscope. 129:578-581
Objectives/hypothesis Intraoperative recording devices are being increasingly used to provide video for contemporary surgical training. The objective of this study was to evaluate the use of a smartphone as a low-cost alternative to obtain high-resol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e7593f52317d32b97321097ab5bd3e1
https://doi.org/10.1002/lary.27307
https://doi.org/10.1002/lary.27307