Oldal 62 [62]
In additi
on, according to the discussion on post-processing reguirements below, a visible¬
i LED lamp
}
No]
|
/ \ |
y I |
} \
J \
T T T
40 500.0 600.0 700.0
350
| I
400 700 1100
Wavelength range of a typical camera CCD/CMOS sensor
compare
d to the wavelength range of a CCD/CMOS sensor. Shading shows wavelengths to be
100
90
80
70
60
50
40
% Transmission
30
20
10
0
Figure 2
380 400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700 720 740 760 780
wavelengthnm
-14. Transmittance curve of a blue-blocking filter (e.g. Lee No. 21, which cuts-on at 560 nm).
54 Date : 14/10/2013