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Wyszukujesz frazę "digital light processing" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Spatial light modulator design and generation of structured electromagnetic waves using digital light processors
Autorzy:
Yalcinkaya, F.
Koc, T.
Pala, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2172826.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
spatial light modulator
digital micro-mirror device
digital light processing
structured electromagnetic wave
orbital angular momentum
hologram
Opis:
Spatial light modulators (SLMs) are versatile devices used for optical studies. These instruments have a wide area of application in photonics. Additionally, SLMs have potential utility in different applications, such as biomedical applications, laser based surgery for precise cutting and as optical tweezers to separate cells in a petri container. However, the high cost of SLM devices prevents their widespread use in many areas, including industrial areas and scientific research laboratories. This paper demonstrates how to design a digital light processor (DLP) based low-cost SLM and describes how to obtain structured electromagnetic waves with the designed SLM. Therefore, this research was undertaken to design and produce a low-cost SLM device for optical applications. For this purpose, two prerequisites had to be fulfilled, the first was to use suitable components of a projection device with DLP-based digital micro-mirror device (DMD), and the second was to eliminate unnecessary SLM components from the system. Finally, holographic images reflected on the SLM screen were created by using Mathematica software program to change the amplitude and phase of the electromagnetic waves in order to obtain the structured electromagnetic waves.
Źródło:
Optica Applicata; 2022, 52, 3; 461--479
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method for improving sinusoidal quality of error diffusion binary encoded fringe used in phase measurement profilometry
Autorzy:
Tian, Z.
Chen, W.
Su, X.
Powiązania:
https://bibliotekanauki.pl/articles/174421.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
phase measurement profilometry
digital-light-processing projector
DLP projector
error diffusion algorithm
binary encoded grating
Opis:
Insufficient resolution of digital-light-processing projector will degrade the sinusoidal quality of the binary encoded fringe pattern because of less sampling points in a fringe period, which will degrade the measurement accuracy if it is used in phase measurement profilometry. Two resolutions are proposed in the paper. One is that a cylindrical lens is introduced in the projecting light path of the measurement system to improve sinusoidal quality of the binary encoded fringe by elliptical low-pass filtering of the system. The other one is that superposition of multi-frame binary encoded gratings with different microstructure is to reduce the binary image noise for improving the measurement accuracy. Simulations and experiments verify the validity of the above two methods.
Źródło:
Optica Applicata; 2016, 46, 2; 291-303
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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