In automatic colour printing systems the exposures are controlled by photocells that evaluate the red, green, and blue components of light transmitted by the negative.
The analyzer can be rotated to obtain maximum contrast in the image, and so the direction of polarization of the light transmitted through the object can be determined.
The tools of optogenetics, which are transforming neuroscience, were used to locate and chemically label neurons, as well as make them susceptible to activation by blue light transmitted by a fiber optic cable.
The ability to measure the rotation of the plane of polarized light transmitted through a solution containing a carbohydrate depends on finding a suitable solvent; water usually is used, with light at a wavelength of 589 mμ (millimicrons).
Moreover, because light (transmitted as electromagnetic waves) is typically generated by electricity, which itself is usually generated by the combustion of fossil fuels, it can be said that there is a connection between light pollution and air pollution (from fossil-fueled power plant emissions).
An infrared spectrophotometer is an instrument that passes infrared light through an organic molecule and produces a spectrum that contains a plot of the amount of light transmitted on the vertical axis against the wavelength of infrared radiation on the horizontal axis.
The amount of light transmitted through the reactor was measured at different levels by a photocell.
The light transmitted through the cell was measured with a photodiode and a lock-in amplifier.
Similar effect was described for the light transmitted through a thin photonic crystal film [29].
By recording the amount of infrared light transmitted through the thread, the sensor measures the amount of local strain.
The light transmitted through the filter is then focused on a detector, typically a CCD camera or photomultiplier tube.
