CCD IRIS
®
FUNCTION
This function allows the use of inexpensive
manual iris lenses instead of a more costly
automatic iris lens. As the illumination level
of the scene changes, the camera responds
by automatically reducing or increasing the
exposure time of the photosensors. This is
achieved by changing the electronic shutter
speed of the CCD, in the range of 1/60 of a
second to 1/100,000 of a second.
FLEXIBLE CHOICE OF AUTO IRIS LENS
An auto iris lens is often ideal for shooting in
environments where illumination levels vary
greatly, such as outdoors. The SPT-M320/324
accepts both DC servo and Video servo auto iris
lenses. The auto iris lens 4-pin connector is
conveniently located on the side of the camera.
BACKLIGHT COMPENSATION FUNCTION
Strong Backlight can often cause the subject
of the picture to be cast into shadow. The
Backlight Compensation (BLC) function helps to
overcome this problem. The picture brightness
can be adjusted to automatically allow for
changes in lighting conditions. The contrast
ratio can be adjusted with the BLC while the
amount of overall picture brightness can be
adjusted with the level control.
SIMPLE SINGLE CABLE WIRING AND
AC LINE LOCK CAPABILITY
The SPT-M320 features optional Triple
Multiplexing operation. Using a single coaxial
cable, the video and sync signals can be
transmitted together with DC power from an
optional YS-W150/W250 Camera Adapter. The
SPT-M320 can also be operated from a local
DC 12 V power source. A secondary video output
is also available when the camera is powered by
the YS-W150/W250 allowing easy access for
positioning and focus at the camera site.
The SPT-M324 features external sync capability
utilizing AC line lock. This makes camera
installation and synchronization easy for both
new and existing camera systems.
C/CS-MOUNT LENS COMPATIBILITY
The SPT-M320/324 can be used with C-mount
or CS-mount lenses, and precise back-focus
adjusment can be easily accomplished.
This broadens your choice of lenses.
The SPT-M320/324 can also be used as a
near-infrared camera when used with a
near-infrared illuminator. This is because the
Exwave HAD camera has higher sensitivity in
near-infrared wavelengths.
LOWER SMEAR
Smear is caused by the leakage of unwanted
light on to the vertical shift register. The smear
level of the Exwave HAD camera is reduced to
1/28th compared to the Hyper HAD camera.
This leakage is dramatically reduced because
the improvement of the unit cell structure
minimizes the unnecessary reflection of the
light onto the CCD surface.
SUPERIOR PICTURE QUALITY
The SPT-M320/324 incorporates a 1/3-inch IT
(Interline Transfer) CCD with more than 380,000
effective picture elements and a horizontal
resolution of 570 TV lines. Sony Exwave HAD
technology allows very high sensitivity with a
minimum illumination of 0.07 lux at F1.2 (50 IRE,
Turbo Gain
®
mode), or 0.04 lux at F1.2 (30 IRE,
Turbo Gain
®
mode) producing clear, crisp images.
THE DIFFERENCE IS EXWAVE HAD CCD’s
In monitoring and surveillance applications,
camera sensitivity is one of the most important
factors in obtaining an adequate picture in low
light conditions. In addition to this requirement
for high sensitivity, low smear levels are
necessary, especially for surveillance of
transportation and parking areas, where bright
headlights of vehicles can be a problem.
Because of the importance of these factors,
Sony has developed Exwave HAD technology.
HIGHER SENSITIVITY
The sensitivity of the SPT-M320/324 is well over
twice that of the current SPT-M314 surveillance
cameras. The conventional Sony Hyper HAD
®
camera has an OCL (on chip lens) located over
each pixel on the CCD. The result is that light
is concentrated on the photosensor areas and
the sensitivity of the camera is improved. The
Exwave HAD takes the Hyper HAD technology a
giant step further. The OCL of the Exwave HAD
camera is a nearly gapless structure, eliminating
the ineffective areas between the microlenses.
This enables the hole accumulation layer to
receive the maximum amount of light (See Fig. 1).
Low Power Consumption
These two cameras have significantly lower power
consumption than earlier models:
Model
Power Power
Source
Consumption
SPT-M320
DC 12 V
2.4 W
SPT-M320
Multiplexing from
YS-W150/250
2.8 W
SPT-M324
AC 24 V
2.6 W
EXWAVE HAD CCD BLACK & WHITE CAMERA
SPT
-
M320/SPT
-
M324
CCD Structure
(Figure 1)
SPT-M324
SPT-M314
Smear level comparison between SPT-M324 and SPT-M314*
* The sensitivity and smear level comparison pictures were taken in identical lighting conditions with the same lens F stop and gain, resulting in relatively high smear levels.
Transfer register
Hole accumulated layer
Ineffective area
Hyper HAD
camera
Exwave HAD
camera
VIDEO OUT
AC outlet
(Coaxial cable)
VIDEO OUT
(Coaxial cable)
VIDEO OUT
(Coaxial cable)
1. Multiple camera operation — SPT-M320 (MPX)
2. Multiple camera operation — SPT-M320 (DC 12 V), SPT-M324
SPT-M320
SPT-M320
SPT-M320
(Coaxial cable)
(Coaxial cable)
(Coaxial cable)
AC outlet
Camera Adaptor
(YS-W250)
Multiplexer
SWITCH OUT
EXT
TIMING IN
(Coaxial cable)
EXT
TIMING IN
(Coaxial cable)
VIDEO IN
VIDEO OUT
(Coaxial cable)
Time Lapse VCR
DC POWER,
SYNC, VIDEO
DC POWER,
SYNC, VIDEO
DC POWER,
SYNC, VIDEO
SPT-M320
SPT-M320
SPT-M324
B/W Video Monitor
B/W Video Monitor
Multiplexer
MONITOR OUT
(Coaxial cable)
MONITOR OUT
(Coaxial cable)
SWITCH OUT
VIDEO IN
Time Lapse VCR
DC 12 V/AC 24 V
power supply
B/W Video Monitor
B/W Video Monitor
System Connections
Sensitivity comparison between SPT-M324 and SPT-M314
SPT-M324
SPT-M314
SPT-M324 (w/near-infrared illuminator)
SPT-M314 (w/near-infrared illuminator)
