ICX428ALB Datasheet, PDF (12/20 Pages) Sony Corporation – Diagonal 8mm (Type 1/2) CCD Image Sensor for EIA B/W Video Cameras

ICX428ALB
Image Sensor Characteristics Measurement Method
Measurement conditions
1) In the following measurements, the device drive conditions are at the typical values of the bias and clock
voltage conditions. (when used with substrate bias external adjustment, set the substrate voltage to the
value indicated on the device.)
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 Y signal output
or chroma 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 = 1.4mm) as an IR cut filter and
image at F8. 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:
This indicates the standard imaging condition I with the IR cut filter removed.
3) Standard imaging condition III:
Image a light source (color temperature of 3200K) with a uniformity of brightness within 2% at all angles.
Use a testing standard lens and the luminous intensity is adjusted to the value indicated in each testing
item by the lens diaphragm. (IR cut filter is not spplicable.)
1. Sensitivity1
Set to standard imaging condition I. After selecting the electronic shutter mode with a shutter speed of
1/250s, measure the signal output (VS1) at the center of the screen and substitute the value into the
following formula.
S1 = VS1 ×
250
60
[mV]
2. Sensitivity2
Set to standard imaging condition II. After selecting the electronic shutter mode with a shutter speed of
1/1000s, measure the signal output (VS2) at the center of the screen and substitute the value into the
following formula.
S2
=
VS2
×
1000
60
[mV]
3. Saturation signal
Set to standard imaging condition III. After adjusting the luminous intensity to 10 times the intensity with
average value of the signal output, 200mV, measure the minimum value of the signal output.
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