C I N E B R A T E User Manual
13
FIGURE 12 - CINEBRATE RESULT SCREEN
T
HEORY OF
O
PERATION
The CINEBRATE is a true Spectroradiometer. It collects the optical radiation (light) through the objective lens.
The signal then passes to the diffraction grating (see Figure 15). The grating breaks up the light into its
component wavelengths much like a prism turns white light into a rainbow. A broad band light such as sunlight
is composed of a large number of different wavelengths of light. When the diffraction grating is exposed to this
type of light, it will refract the light at several angles thus creating a diffracted spectrum much like a rainbow.
Similarly, if the grating is exposed to a source such as a laser, which emits a nearly monochromatic wavelength
of light, only the wavelength(s) of the laser will be refracted.
FIGURE 13
–
SPECTRUM MEASURED BY THE PR- AND CINEBRATE
The wavelength range is 380 nanometers (nm) (violet) to 780 nm (deep red)
–
the visible spectrum of the
electromagnetic spectrum (see Figure 13).
The diffracted spectrum is then dispersed onto the detector. The detector is comprised of 128 individual
elements. Each of the detector elements in samples a unique color.
380 nm
500 nm
600 nm
780 nm.
