Results 211 to 220 of about 532,604 (268)
Some of the next articles are maybe not open access.
Applied Optics, 1987
A modification of the technique of photoretinoscopy is presented which allows measurement of the refractive state of the eye in noncooperative subjects and in very small eyes. Infrared light provided by high-output infrared LEDs permits measurement at large pupil sizes and thereby better resolution.
F, Schaeffel, L, Farkas, H C, Howland
openaire +2 more sources
A modification of the technique of photoretinoscopy is presented which allows measurement of the refractive state of the eye in noncooperative subjects and in very small eyes. Infrared light provided by high-output infrared LEDs permits measurement at large pupil sizes and thereby better resolution.
F, Schaeffel, L, Farkas, H C, Howland
openaire +2 more sources
Applied Optics, 1988
IR Coatings are optical interference coatings used for at least one of the atmospheric windows from 3-5 or from 8-12 microns. Particulary interesting are coatings which are additionally used for the visible spectrum, or high power coatings for the CO2-laser at 10.6 microns. The main applications of IRCs are thermal imagers and laser systems.
openaire +2 more sources
IR Coatings are optical interference coatings used for at least one of the atmospheric windows from 3-5 or from 8-12 microns. Particulary interesting are coatings which are additionally used for the visible spectrum, or high power coatings for the CO2-laser at 10.6 microns. The main applications of IRCs are thermal imagers and laser systems.
openaire +2 more sources
Infrared Detector For Mid-Infrared Astronomy
Astrophysics and Space Science, 1989Recent developments of infrared detectors and arrays for mid-infrared astronomical observations are discussed with an emphasis on technical issues in designing and fabricating photometers and cameras. The discussion includes a small-scale silicon bolometer array being tested at the Steward Observatory.
openaire +1 more source
2018
Historically, brown adipose tissue has been elusive and not easy to detect, hence its relative obscurity in human physiology until its rediscovery in 2009. At that point, it was proven that the symmetrical artefacts frequently detected on positron emission tomography-computed tomography (PET-CT), which resolved if the environment was kept warm, were ...
James, Law +3 more
openaire +2 more sources
Historically, brown adipose tissue has been elusive and not easy to detect, hence its relative obscurity in human physiology until its rediscovery in 2009. At that point, it was proven that the symmetrical artefacts frequently detected on positron emission tomography-computed tomography (PET-CT), which resolved if the environment was kept warm, were ...
James, Law +3 more
openaire +2 more sources
2013
Infrared thermography also commonly referred as thermal imaging, or simply thermography, is a nondestructive testing (NDT) technique that has received vast and growing attention for diagnostics and monitoring in the last few decades. This is mainly due to the fact that commercial infrared or thermal cameras, the main instrument for performing infrared ...
Ibarra Castanedo, Clemente +1 more
openaire +2 more sources
Infrared thermography also commonly referred as thermal imaging, or simply thermography, is a nondestructive testing (NDT) technique that has received vast and growing attention for diagnostics and monitoring in the last few decades. This is mainly due to the fact that commercial infrared or thermal cameras, the main instrument for performing infrared ...
Ibarra Castanedo, Clemente +1 more
openaire +2 more sources
Clinical Biochemistry, 1989
An immunoassay method based on the labelling of an antigen with a transition-metal carbonyl organometallic marker and detection of the label by Fourier transform infrared (FT-IR) spectroscopy is described. The viability of this novel non-isotopic approach, termed infrared immunoassay (IRIA), has been evaluated in the quantitative determination of the ...
A A, Ismail +3 more
openaire +2 more sources
An immunoassay method based on the labelling of an antigen with a transition-metal carbonyl organometallic marker and detection of the label by Fourier transform infrared (FT-IR) spectroscopy is described. The viability of this novel non-isotopic approach, termed infrared immunoassay (IRIA), has been evaluated in the quantitative determination of the ...
A A, Ismail +3 more
openaire +2 more sources
Applied Optics, 1982
A brief history of the early work on Fourier spectroscopy at the Johns Hopkins University is given as well as a general description of the techniques of Fourier and Hadamard transform spectroscopy. The techniques of tunable diode laser spectroscopy and the difference frequency technique for IR spectral studies are also briefly described including some ...
openaire +2 more sources
A brief history of the early work on Fourier spectroscopy at the Johns Hopkins University is given as well as a general description of the techniques of Fourier and Hadamard transform spectroscopy. The techniques of tunable diode laser spectroscopy and the difference frequency technique for IR spectral studies are also briefly described including some ...
openaire +2 more sources
Science, 1971
Radiation in the near-infrared spectral region should produce a rainbow that is not visible to the human eye. An infrared photograph is shown which displays the primary bow, the secondary bow, and two supernumerary bows inside the primary bow.
openaire +2 more sources
Radiation in the near-infrared spectral region should produce a rainbow that is not visible to the human eye. An infrared photograph is shown which displays the primary bow, the secondary bow, and two supernumerary bows inside the primary bow.
openaire +2 more sources