Biomedical Engineering Reference
In-Depth Information
Monochromatic response curve
QE 50%
0.30
QE 40%
0.25
0.20
QE 30%
0.15
QE 20%
0.10
QE 10%
0.05
0.00
400
450
500
550 600
Wavelength (nm)
650
700
750
800
FIGURE 2.37
Spectral sensitivity of Phantom v7.3 high-speed digital imaging system.
Luminys 6.5 K light spectral output
100
80
60
40
20
0
380
480
580
680
780
880
980
Wavelength (nm)
FIGURE 2.38
Normalized spectral output of Luminys Corp. 6.5-K light.
flashbulbs, VCSEL sources produce a 976-nm center wavelength, with a
FWHM spectral width of 0.8 nm. For this reason, the response of the V7.3
at 976 nm is an important parameter for our system design. As mentioned
previously, the ratio of the quantum efficiency at 550 nm to the efficiency at
976 nm is about 7.
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