ICX074AK Datasheet, PDF (13/21 Pages) Sony Corporation – Diagonal 8mm (Type 1/2) Progressive Scan CCD Image Sensor with Square Pixel for Color Video Cameras

ICX074AK
Image Sensor Characteristics Measurement Method
Measurement conditions
1) In the following measurements, the substrate voltage is set to the value indicated on the device, and 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 (OB) level is used as the reference for the signal output, which is taken as the value of the Gr/Gb
signal output or R/B signal output of signal output 1 in the measurement system.
3) In the following measurements, this image sensor is operated in 1/60s interlaced mode.
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 = 1.00mm) 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 II :
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 = 1.00mm) 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 [mV]
60
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 and 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
(Sm1 [mV]) of signal output 1 and the maximum value (Sm2 [mV]) of signal output 2, and substitute the
values into the following formula.
Sm =
Sm1 + Sm2
2
÷
Gra
+
Gba +
4
Ra
+
Ba
×
1
500
×
1
10
× 100 [%] (1/10V method conversion value)
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