ICX279AL Datasheet, PDF (9/17 Pages) Sony Corporation – Diagonal 4.5mm (Type 1/4) CCD Image Sensor for CCIR B/W Video Cameras

ICX279AL
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.
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, and the value measured at point [^∗A] in the
drive circuit example is used.
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 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:
Indicate the state which removes an IR cut filter of standard imaging condition I.
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 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.
4) Standard imaging condition IV:
Image a light source (color temperature of 3200K) with a uniformity of brightness within 2% at all angles.
Use a testing standard lens (exit pupil distance –33mm) 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. Sensitivity 1
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
50
[mV]
2. Sensitivity 2
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
50
[mV]
3. Saturation signal
Set to standard imaging condition III. After adjusting the luminous intensity to 10 times the intensity with the
average value of the signal output, 200mV, measure the minimum value of the signal output.
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