Results 261 to 270 of about 1,684,231 (305)
Some of the next articles are maybe not open access.
Optical measurement of aero-optics
OSA Annual Meeting, 1993Optical measurements of aerodynamically induced optical degradation have evolved over the last few decades from commerical optical testing instruments to specialized aero-optic diagnostic systems. New diagnostic systems feature vastly increased temporal and spatial resolution and accuracy.
openaire +1 more source
Optical Pachometry Measurements
Optometry and Vision Science, 1984Polymethyl methacrylate (PMMA) lenses of known thickness were measured by one investigator with a pachometer. This experienced pachometrist held variation in thickness measurements to within 1% over time. The measurements were repeatable with a SD less than 1%.
openaire +2 more sources
2018
A monochromatic light is quantified by its brightness and color, i.e., its optical power and wavelength. And a light beam is normally composed of many monochromatic lights of different powers and wavelengths. In this chapter we discuss three optical dispersive devices, namely, prism, diffraction grating, and Fourier transform spectroscopy, to resolve ...
Wei Lu, Ying Fu
openaire +1 more source
A monochromatic light is quantified by its brightness and color, i.e., its optical power and wavelength. And a light beam is normally composed of many monochromatic lights of different powers and wavelengths. In this chapter we discuss three optical dispersive devices, namely, prism, diffraction grating, and Fourier transform spectroscopy, to resolve ...
Wei Lu, Ying Fu
openaire +1 more source
1978
Two disadvantages with the direct measurement of distance discussed in chapter 1 are, firstly, that the measuring process takes place on the ground (if the terrain is undulating this can be very difficult) and, secondly, when a lot of linear measurements are required, taping can be laborious and time consuming.
J. Uren, W. F. Price
openaire +1 more source
Two disadvantages with the direct measurement of distance discussed in chapter 1 are, firstly, that the measuring process takes place on the ground (if the terrain is undulating this can be very difficult) and, secondly, when a lot of linear measurements are required, taping can be laborious and time consuming.
J. Uren, W. F. Price
openaire +1 more source
Frequency ratio measurements at 18-digit accuracy using an optical clock network
Nature, 2021Tobias Bothwell +2 more
exaly
Optical tweezers in single-molecule biophysics
Nature Reviews Methods Primers, 2021Carlos J Bustamante +2 more
exaly
All-optical physiology resolves a synaptic basis for behavioral timescale plasticity
Cell, 2023Doo Kyung Kim +2 more
exaly
Differential clock comparisons with a multiplexed optical lattice clock
Nature, 2022Xin Zheng +2 more
exaly

