ICX098AK Datasheet, PDF (10/21 Pages) Sony Corporation – Diagonal 4.5mm (Type 1/4) Progressive Scan CCD Image Sensor with Square Pixel for Color Cameras

ICX098AK
Measurement conditions
1) In the following measurements, the device drive conditions are at the typical values of the bias and clock
voltage conditions.
2) In the following measurements, spot blemishes are excluded and, unless otherwise specified, the optical
black level (OB) is used as the reference for the signal output, which is taken as the value of the Gr/Gb
signal output or the R/B signal output of the measurement system.
Definition of standard imaging conditions
1) Standard imaging condition I:
Use a pattern box (luminance 706cd/m², color temperature of 3200K halogen source) as a subject. (Pattern
for evaluation is not applicable.) Use a testing standard lens with CM500S (t = 1.0mm) as an IR cut filter
and image at F5.6. The luminous intensity to the sensor receiving surface at this point is defined as the
standard sensitivity testing luminous intensity.
2) Standard imaging condition ΙΙ:
Image a light source (color temperature of 3200K) with a uniformity of brightness within 2% at all angles.
Use a testing standard lens with CM500S (t = 1.0mm) as an IR cut filter. The luminous intensity is adjusted
to the value indicated in each testing item by the lens diaphragm.
1. G sensitivity, sensitivity comparison
Set to standard imaging condition I. After selecting the electronic shutter mode with a shutter speed of
1/100s, measure the signal outputs (VGr, VGb, VR and VB) at the center of each Gr, Gb, R and B channel
screens, and substitute the values into the following formula.
VG = (VGr + VGb)/2
Sg
=
VG ×
100
30
[mV]
Rr = VR/VG
Rb = VB/VG
2. Saturation signal
Set to standard imaging condition II. After adjusting the luminous intensity to 20 times the intensity with the
average value of the Gr signal output, 150mV, measure the minimum values of the Gr, Gb, R and B signal
outputs.
3. Smear
Set to standard imaging condition II. With the lens diaphragm at F5.6 to F8, first adjust the average value of
the Gr signal output to 150mV. Measure the average values of the Gr signal output, Gb signal output, R signal
output and B signal output (Gra, Gba, Ra, Ba), and then adjust the luminous intensity to 500 times the intensity
with average value of the Gr signal output, 150mV. After the readout clock is stopped and the charge drain is
executed by the electronic shutter at the respective H blankings, measure the maximum value (Vsm [mV]),
independent of the Gr, Gb, R and B signal outputs, and substitute the values into the following formula.
Sm = Vsm ÷
Gra + Gba + Ra + Ba
4
×
1
500
×
1
10
× 100 [%] (1/10V method conversion value)
4. Video signal shading
Set to standard imaging condition II. With the lens diaphragm at F5.6 to F8, adjust the luminous intensity so
that the average value of the Gr signal output is 150mV. Then measure the maximum (Grmax [mV]) and
minimum (Grmin [mV]) values of the Gr signal output and substitute the values into the following formula.
SHg = (Grmax – Grmin)/150 × 100 [%]
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