Light- proof tube and aperture diaphragm are cooled and diameter D of optical surface of main mirror corresponds to condition D>fd/(f-L)+2Lsinω, where f is focal distance of main mirror; d is diameter of aperture diaphragm; L is distance from main mirror to aperture diaphragm; &...
SUBSTANCE: optical system includes main concave mirror, aperture diaphragm and lens compensator installed in converging bundle of rays and photodetector. Zone of ray propagation from diaphragm to photodetector is limited by light-proof tube. Light- proof tube and aperture diaphragm are cooled and ...
Hence, researchers prefer infrared instead of RF for short range communication. IR and Visible Light being nearer in frequency spectrum share most of their common features and advantages. However due to eye safety and skin issues IR is limited by power for indoor wireless communication. On the ...
Furthermore, color is understood more as a spectral signal instead of only three-dimensional coordinate values. Spectral understanding is necessary because many applications are using the electromagnetic spectrum outside the human visual range, in the UV and IR regions. In this case the only useful...
[translate] a你要来杯橙汁吗? You must come the cup orange juice? [translate] awas 300 nm. The rate of photo oxidation of the UV [translate] aoxidation products through FT-IR per 20 h upon UV [translate] ainfrared spectrum analyzer with the wave-number range [translate] ...
Real-time and accurate biomarker detection is highly desired in point-of-care diagnosis, food freshness monitoring, and hazardous leakage warning. However, achieving such an objective with existing technologies is still challenging. Herein, we demonstrat
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Integrating visible camera, near-infrared laser illuminator with thermal camera, TRC series multi-spectrum camera is capable of conducting long-range monitoring in all black/foggy/rainy environment. In the daytime, telephoto HD lens works together with the 440000/2000000 pixel ...
The PL spectrum was analyzed using a SpectraPro grating spectrometer with a PyLoN IR cooled CCD array (Princeton Instruments). The regime for the growth of the InAs QDs (TS = 470°C, deposition rate ~0.02 ML/s, As/In flux ratio ~200–300) was selected based on the AFM and PL ...
spectrum in the range from 200 nm to 1080 nm with a resolution of 2 nm. The second beam is directly sent to another spectrometer from Stellar-Net, model STE-RED-WAVE-NIR-512-25, which measures the spectrum from 900 nm to 1700 nm, with a resolution of 3 nm. In this case we do ...