COHU 3610 Series Product manual

Phone: [phone]
www.cohu-cameras.com
Cohu Electronics  3912 Calle ortunada  San Diego, CA 92123-1827
ax: 858-277-0221
[email protected]
3610 SERIES
DSP COLOR CAMERA
TECHNICAL RE ERENCE MANUAL
Technical Manual 6X-1042(A)
August 31, 2004
igure 1. Machine Vision Color Camera
RS-232C SERIAL CONTROL
PRELIMINARY A
CC

26X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
LIST O
SECTIONS
LIST O
IGURES
LIST O
TABLES
SECTION TITLE PAGE
1.0 GENERAL DESCRIPTION4
1.1 Electrical Characteristics 4
1. Mechanical Characteristics 4
.0 INSTALLATION5
.1 Unpacking and Receiving Inspection 5
. Static Discharge Protection 5
.3 Equipment Supplied 8
.4 Equipment Required but Not Supplied 9
.5 Cabling Requirements 9
.6 Power Requirements 10
.7 Mounting Requirements 10
.8 CS- and C-mount Adapters 14
.9 Serial Control Input 14
.10 Installation Procedure 14
.11 Preparation for Shipment and Storage 15
3.0 OPERATION15
3.1 DSP3600 GUI Home Screen 18
3. Lens/Aperture (Lens Dialog) Window 3
3.3 Set AE Window (Set Weight) Window 3
FIGURE TITLE PAGE
1Machine Vision Color Camera 1
2Sensor Response Characteristics 5
3IR Cut Filter Response Characteristics 5
4 Model Number Interpretation Diagram 6
5Dimensions, Model 3610 Camera
6Dimensions, Optional Mounti ng Block
Rear Panel Connector Pin Locations 10
8Test Cable, CTC-36 (5 V dc Camera Version) 11
9Test Cable, CTC-34 (12 V dc Camera, Auto/dc Iris Lenses) 12
10 Test Cable, CTC-32 (12 V dc Camera, Freeze Frame) 13
11 Typical Interconnecti on Diagram 14
12 About Screen 15
13 DSP3600 "Home" Screen 16
14 Lens Dialog Screen 19
15 Set Wei ght Screen 20
16 Typical Pop-up Windows 21
1 Non-linear Y-gamma Characteristic 22
18 Linear Y-gamma Characteristic 22
TABLE TITLE PAGE
1 Specifications 3
Capabilities 8
3Items Supplied 9
4Optional Accessory Kit 9
5Pin Functions, Rear Panel Connector 10
6Mating Rear Panel Connector Plug 10
7DSP3600 "Home" Screen 17
8Lens Dialog Screen 19
9 Set Weight Screen 0
10 GUI Defaults 1

3
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
Table 1. Specifications
ELECTRICAL
Format
Interline transfer color CCD operating in field mode
1/2 inch (6.45 × 4.84 mm) standard
1/3 inch (4.88 × 3.66 m) future option
Pixels 768 × 494 NTS
752 × 582 PAL
Pixel ell Size 1/2 inch: 8.40 (H) × 9.80 (V) µm NTS ; 8.60 (H) × 8.30 (V) µm PAL
1/3 inch: 6.35 (H) × 7.40 (V) µm NTS ; 6.50 (H) × 6.25 (V) µm PAL
Resolution NTS : 460 H × 350 TV lines; PAL: 450 X 415
Internal lock 28.63636 MHz (NTS )
28.375 MHz (PAL)
Sync Internal crystal
Frame Rate 30 fps (NTS ); 25 fps (PAL)
Sensitivity, Faceplate 1/2 inch: 3 lux with full video, minimum gain
White Balance Auto or manual white balance, 2500 to 9500 K
Gamma hoices of 10 gamma curves (8 power function, 2 linear)
Gain 0 to 32 dB gain control  either agc or menu selected manual adjustment
Shutter 1/60 (1/50 PAL) to 1/50,000 s, in nine steps (menu selected)
S/N48 dB max; 22 dB S/N with 32 dB gain
Spectral Response See figure 2
Integration 2 to 510 fields available using menu selection
Video Output Simultaneous composite and S-video (NTS or PAL)
Lens ontrol 5 volt camera: manual iris only
12 volt camera: manual iris, auto iris, or dc iris
Serial ommunications RS-232 , 19,200 baud (fixed)
Power Input 5 V dc ±10 % or
12 V dc ±10 % (depending on model)
Power onsumption 5 V: 2.5 W (500 mA) or 12 V: 4.2 W (350 mA)
Regulatory E ISP RII class A plus EN61000-4 -3, EN61000-4 -6, EN61000-4 -8
interference immunity test
MECHANICAL
Dimensi ons 1 x 1 x 3 inch, less lens (see figure 5)
Weight 2.9 oz (82 g), less lens
amera Mount
Two 1/4-20 screws (accepts 0.200 deep screw) top or bottom mounting block,
or direct to top or bottom of camera body with two 2-56 inch screws,
or via S mount direct to microscope or similar device
Lens Mount S-mount, adjustable, or -mount using 5 mm extension adapter
Lens can be moved up to 3-inch from main electronics
onnectors Single 12-pin Hirose HR10A-10R-12P
Temperature -20 to 70 ° operating
-30 to 85 ° non operating
Vibration, less lens Per MIL-STD-810(E), Method 514.4, categories 1, 4, 5, 8, 9, 10
Shock, less lens No damage to 30 g's, 11 ms duration, no crash hazard to 75 g's, 11 ms
duration
end

46X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
1.0GENERAL DESCRIPTION
This introduction briefly describes overall
characteristics of the amera (figure 1) related to
its installation and operation.
1.1Electrical Characteristics
The 3610 Series provides a small, light-
weight, highly sensitive machine vision D
amera with all electrical connections via a single
rear panel connector.
Setup and control settings are implemented
by a graphical user interface (GUI) communicat-
ing through an RS-232 serial interface with the
amera.
The amera operates in either NTS or PAL
format depending on the model. This amera
operates at an internal clock rate of 28.63636
MHz (NTS ) or 28.375 MHz (PAL). Table 1 lists
specifications for this 3610 amera.
Table 2 is a list of major features of the
amera  primarily those associated with the
GUI.
The amera is available in two different
operating power configurations: 5 V dc and 12 V
dc. Only manual iris lenses can be used with the
5 V dc amera. The 12 V dc ameras are avail-
able in three configurations: (1) an auto iris
version (2) a dc iris version or (3) a freeze frame
version  which requires the use of a manual iris
lens.
1.1.1 Sensor Characteristics
Figure 2 shows the relative response char-
acteristic of the sensor. These characteristic
curves apply to both NTS and PAL sensors.
The curves show yan, Green, Yellow and
Magenta responses.
The chart excludes both lens characteristics
and light source characteristics.
Note however that the IR cut filter shown in
figure 3 will modify the overall response of the
amera to light. This low pass filter starts block-
ing light above about 500 nanometers and at 600
nm passes only about 50 percent. Rolling off the
response at these longer wavelengths minimizes
the effect of infrared on the color response of the
amera.
1.2Mechanical Characteristics
A model number interpretation diagram
appears in figure 4. This diagram shows the
various basic configurations of the amera.
Dimensions for the amera are shown in
figure 5. Figure 6 is a detailed dimensional
illustration for the optional mounting block that
provides threaded 1/4-20 mounting holes. The
amera consists of a main body casting and front
casting assembly.
Interconnections are via a 12-pin connector
located on the rear panel.
NOTE: This equipment has been tested and found to comply with the limits for a lass A digital device,
pursuant to Part 15 of the F Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This eqiupment gener-
ates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
AUTION: hanges or modifications to this de-
vice not expressly approved by ohu Electronics
could void the user's authority to operate the de-
vice.
This device complies with Part 15 of the F Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference,
and (2) this device must accept any interference re-
ceived, including interference that may cause un-
desired operation.
CC STATEMENTS

5
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
igure 2. Sensor Response
Characteristics
igure 3. IR Cut ilter Response
Characteristics
An adjustable S-mount adapter threads
onto the front of the casting. It is secured from
turning by a nylon tipped hex-socket head set-
screw.
The amera can be mounted at any of three
places on its body:
1. By the S mount directly to a microscope or
other similar device
2. By the top of the case  either with or without
the optional mounting block
3. By the bottom of the case  either with or
without the optional mounting block
Directly mounting to the top or bottom of the
housing requires removal of the two black button
head screws holding the outer housing cover in
place at that location (top or bottom). The optional
Accessory Kit contains the mounting block and a
pair of 2-56 × 3/8 stainless steel screws to attach it
to the amera.
If the amera is to be mounted directly
without use of the optional mounting block, a pair
of 2-56 stainless steel screws of the required
length would have to be acquired. These are not
supplied.
2.0INSTALLATION
In addition to the actual installation require-
ments, this section covers a number of other
items including proper shipping and handling of
the amera.
2.1Unpacking and Receiving
Inspection
This item was thoroughly tested and care-
fully packed in the factory. Upon acceptance by
the carrier, they assume responsibility for its safe
arrival. Should you receive this item in a dam-
aged condition, apparent or concealed, a claim
for damage must be made to the carrier.
To return the product to the factory for
service, please contact the ustomer Service
Department for a Return Authorization Number. If
a visual inspection shows damage upon receipt
of this shipment, it must be noted on the freight
bill or express receipt and the notation signed by
the carrier's agent. Failure to do this can result in
the carrier refusing to honor the claim.
When the damage is not apparent until the
unit is unpacked, a claim for concealed damage
must be made. Make a mail or phone request to
the carrier for inspection immediately upon dis-
covery of the concealed damage. Keep all car-
tons and packing materials.

66X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
SERIES
POWER
SENSOR
CCD
CAMERA
1 5 V dc Power
2 12 V dc Power
ACCESORIES
LENS
2 1/2-inch NTSC, S-video
3 1/3-inch NTSC, S-video
5 1/2-inch PAL, S-video
6 1/3-inch PAL, S-video
SYNC
1 internal crystal
0 None
1 Test cable
2 Accessory kit
3 Test cable & accessory kit
0000 None
(Manual iris,
auto iris &
dc iris lenses
available)
This is a model number interpretation diagram. It should be used only for determining
the features of an existing model number — such as that labeled on a Camera.
(future option)
IRIS
0 Manual Iris & Trigger
1 Auto Iris
4 Dc Iris
(future option)
12 Vdc
cameras
only
*
*
Trigger designates the freeze frame mode
discussed in this manual
361 x — x x x x — ××××
igure 4. Model Number Interpretation Diagram
Since shipping damage is the carrier's
responsibility, the carrier will furnish you with an
inspection report and the necessary forms for
filing the concealed-damage claim
2.2Static Discharge Protection
Procedures in this manual do not require
entry into the housing of the amera. However in
the event that an open unit were available, the
following precautions should be followed:
CAUTION
This Camera contains sensitive devices
that can be damaged by static discharge.
Use appropriate static control methods
when working inside the Camera.
omponents used in modern electronic
equipment, especially solid state devices, are
susceptible to damage from static discharge. The
relative susceptibility to damage for semiconduc-
tors varies from low with TTL to high with MOS.
Most other semiconductors fall between TTL and
MOS in susceptibility to static discharge. As a
minimum, therefore, observe the following prac-
tices when working inside this or any other elec-
tronic equipment:
1.Use conductive sheet stock on the work bench
surface.
2. onnect the sheet stock to ground through an 1
megohm or greater value resistor.
3.Use a wrist strap connected to ground through
an 1 megohm or greater value resistor when
working at the bench.
4.Maintain relative humidity of the room above 30
percent. This may require a room humidifier.
Working on circuits with relative humidity below 30
percent requires extraordinary procedures not
listed here.
5. Use antistatic bags to store and transport an

7
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
igure 5. Dimensions, Model 3610 Camera
igure 6. Dimensions, Optional Mounting Block
0.335
(8.51)
1.125
(28.57)
O
Adjustable CS-mount
Locking Setscrew
(Nominal Position) Effective Image Plane
*
*
Optical path includes 0.031 (0.8) thick BK-7 flat glass and 0.213 (5.4) thick multilayer
quartz optical low-pass filter. Actual image plane is 0.81 (2.1) behind effective image plane.
0.492
(12.5)
3.00 (76.2)
2.635
(66.93)
0.55
(14)
Nominal
1/4-20
(2 Place)
0.3175 (8.064) 1.500 (38.10)
Optional Mounting Block
Use 2-56 x 3/8 flathead stainless steel screw
(2 place)
(0.20 max depth)
0.20
(5.1)
1.00
(25.40)
1.00
(25.40)
Mounting block
Dimensions in inch and (mm)
Optical and Mechanical
Centerlines Same
top or bottom
can fasten
0.50 (12.7)

86X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
Table 2. Capabilities
exposes chassis, circuit boards, and components.
Use new antistatic bags. Old, used bags lose their
static protection properties.
This list serves as a reminder of the mini-
mum acceptable practices. Be sure that all static
discharge devices at the work bench are properly
installed and maintained. Standard grounding
mats and wrist straps purchased for use at work
benches are supplied with leads having current
limiting resistors for safety. Never substitute with
a grounding lead not having the resistor.
AUTOM AT IC OPERATION
Standard Feature Camera can be set up for unattended operation with no operator input
SERIAL REMOTE CONTROL FUNCTIONS
Programmable Aperture Correction
Modifies high frequency response in camera circuits to enhance black-white
transitions in the scenes. Has the effect of making scenes look "sharper." Can
be implemented for horizontal alone, vertical alone, or for both horizontal and
vertical simultaneously
Complex Gamma Curve Constructions Makes it possible to taylor a gamma curve for the types of scenes typically
viewed
2-D Mirroring Allows for horizontal and vertical to be independently reversed left-right and top-
bottom
Programmable backlight Compensation involving
window masking and histrograms
Makes it possible to minimize the effect of bright areas of the scene outside the
areas of interest either by masking out those areas or by applying an integration
effect to a histrogram of the scene brightness levels
Windowed Auto Exposure
Makes it possible to window (select) an area of the scene upon which the auto
exposure circuits will operate. Likewise, an area of the scene can be windowed
(selected) upon which the auto white balance circuits will operate.
Electronic Pan & Ti lt When zoomed in from a full frame view, makes it possible to electronically move
right/left (panni ng), up/down (tilt), or rotated (angle viewed changes)
Negative Y and/or C, monochrome, freezeLuminance (Y) can be reversed to make an negative image and/or color (C) can
be reversed or removed. Image can be frozen
Programmable Blemish Correction Any pixel areas of the scene can be modified to the desired response and
stored as a permanent characteristic for that area
Presets Selections in the various GUI menus can be saved to a preset for easy recall
Auto/manual gain
Gain control can be set for either of two modes: 1. Automatic control by the
camera to maintain video output or 2. Manual gain control mode through menu
selections with the GUI
Shutter
The sensor can be made to collect light for less than the normal time (1/60 for
NTSC or 1/50 for PAL). Nine selections are available up to 1/50,000 sec.
Frames continues at the normal rate while shuttering.
Integration
The sensor can be made to collect light for enhanced sensitivity by menu
selection of integration times from 2 fields to 510 fields. The Camera continues
to output at its normal frame rate during this integration time but with the last
integrated field until the next integrated field is available.
White Balance
Three white balance modes are available. One is automatic white balance with
the camera circuits maintaining proper white balance. The second choice is for
by moving sliders on a GUI screen to change the white balance curves manually.
The other choice is the User mode in which it is possible to independently move
sliders on the red and blue response curves.
OTHER CAPABILITIES
Auto iris, dc iris, manual iris lens selections
All versions of the Camera can be used with a manual iris lens. Automatic iris
lenses can be used with the 12 V dc version of the Camera  unless it has
been optioned for the freeze frame mode of operation. These automatic iris
lenses can be either a video driven auto iris lens or a dc iris lens (depending on
which of these two lens options had been chosen for the Camera configuration).

9
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
2.3Equipment Supplied
The equipment supplied depends on what
has been ordered. In its most basic form only the
following would be supplied (table 3):
1. The amera itself (either NTS or PAL ver-
sion)
2.A S-mount adapter, 0.335 width
3.Locking setscrew for adapter (4-40 x 5/32)
4. Graphical User Interface (GUI) available either
with the amera on disk or downloaded from:
www.cohu-cameras.com/tech/tech.htm
The following items are provided if the
optional accessory kit has been ordered (table 4):
1. Wrench, hex key (Allen) L type wrench, 1/16-
inch
2. 5 mm extender ring for use with -mount
lenses
3. Mounting block (provides two 1/4-20 threaded
holes)
4. Screw, flathead, 2-56 × 3/8 stainless (2 each)
5. onnector, plug, cable, 12-pin (mates with rear
panel connector)
The following items will also be supplied if
they were ordered:
1. Lens, for sensor imaging (for either 1/3-, 1/4-,
or 1/2-inch sensor), depending on version of
amera
2. Power supply  depending on the version of
amera:
a. 5 V dc, 500 mA power supply ( ohu type
8470-5) or
b. 12 V dc, 350 mA power supply ( ohu type
8368-4)
Note that special-order ameras and am-
eras modified for special purposes may be
shipped with other items. The above listing are
the basic items for typical applications.
Table 3 lists the basic items supplied with a
amera. Table 4 lists items supplied in an op-
tional accessory kit.
2.4Equipment Required but Not
Supplied
If the following items were not ordered with
the amera these will be required to make it
operational:
1. S- or -mount lens suitable for the sensor
format/size in amera
2. Power supply, 5 V dc, 500 mA output or 12 V
dc, 350 mA
3. able. Refer to one of these test cables as an
example for the construction of an interconnection
cable to be used with the amera:
a. See figure 8 for use with a 5 V dc (manual
iris) versions of amera
Table 3. Items Supplied Table 4. Optional Accessory Kit
ITEMS SUPPLIED
ITEM DESCRIPTION PART NUMBER
1 S-mount, 0.335 wide 8359208-001
2Set Screw, nylon tipped,
stainless, 4-40 x 5/32 2010258-005
Note: These items are typically mounted on the Camera
wh en it is shipped. An optional Accessory Kit is available
to supply additional items that may be useful in some
installation.
KIT 8478-3 (12 Vo lt Cam ra)
ITEM DESCRIPTION PART NUMBER
1Wrench, hex key, 1/16 inch 9 10010-009
25 mm extender
(C-mount adapter) 2010695-001
3Mounting Block
(mounts top or bottom) 84 8315-001
4Screw, flathead, 2-56 × 3/8
stainless (2 each) 0310118-006
5Connector, plug, 12 pin (mates
with rear panel connector)
1310398-212
(Hirose
HR10A-10P-12S)

10 6X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
b. See figure 9 for use with auto iris or dc
iris version of amera (12 V dc operating
power)
c. See figure 10 for use with a 12 V dc
amera optioned for freeze frame opera-
tion. (Requires use of a manual iris lens.)
4. 1/4-20 mounting bolt(s) of the proper length
if the mounting block is to be used.
2.5Cabling Requirements
A single 12-pin connector (figure 7) on
the rear panel provides all electrical connec-
tions to the amera. Table 6 lists the mating
connector for a cable that attaches to this
connector. Several test cables are shown in
this manual. They can be used as an example
for wiring the operating cable for a amera.
igure 7. Rear Panel
Connector Pin Locations
Table 5 Pin unctions, Rear Panel Connector
REAR PANEL CONNECTOR MATING CABLE PLUG
Cohu 131039 -312
Hirose HR10A-10R-12PC
Cohu 1310398-212
Hirose HR10A-10P-12S
MANUAL IRIS
REAR PANEL CONNECTOR
PIN NAME DES CRIP TION
5/12 Return (See note below)
+5 V dc Power Input (500 mA)
+12 V dc Power Inp ut (350 mA)
!Shield 75 Ohm Composite
Video Output
"Video
&XD RS-232C Serial
Communications
'RXD
 YS-video Output
 C
#rigger Freeze Frame Control
$
Not use d
%

NOTE: nput power to pins 1 & 2 depends on the
model of Camera
AUTO IRIS
REAR PANEL CONNECTOR
PIN NAMEDESCRIPTION
Return Power Input
(350 mA)
+12 V dc
!Shield 75 Ohm Compo ite
Video Output
"Video
&TXD RS-232C Serial
Communication
'RXD
 YS-video Output
 C
#nc (no connecti on)
$Pwr 8.5Vdc
Auto Iri Control
%Video
 Gnd C
DC IRIS
REAR PANEL CONNECTOR
PIN NAME DESCRIPTION
Return Power Input
(350 mA)
+12 V dc
!Shield 75 Ohm Compo ite
Video Output
"Video
&TXD RS-232C Serial
Communication
'RXD
 YS-video Output
 C
#Ground
Dc Iri Control
$Cont -
%Cont +
 Drive
MANUAL IRIS CAMERAS AUTOMATIC IRIS CAMERAS
VIEWED FROM
OUTSIDE OF
REAR PANEL
SAME AS WIRING
VIEW OF MATING
PLUG
19
2
3
456
7
8
1
1
0
1
2
1
Table 6. Mating Rear Panel Connector Plug
Figure 8 shows the wiring arrangement for a
5 V dc (manual iris only) version of the amera.
This cable provides for all operating capabilities
of a 5 V dc amera.
A 12 V dc version of the amera may
require a cable wired to either of two configura-
tions. One is for use when the amera is inter-
nally configured for use with either an auto iris
lens or a dc iris lens. The other is for use when a
12 V dc amera is internally configured for
freeze frame operation.
1.Figure 9 shows the cable for use when a 12 V
dc version of the amera is configured for either
an auto iris lens or a dc iris lens.
2.Figure 10 shows cable wiring for use when a
12 V dc amera is internally configured for freeze
frame operation. A manual iris lens must be used
when the amera is configured for freeze frame
operation.

11
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
igure 8. Test Cable, CTC-36 (5 V dc Camera)

12 6X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
igure 9. Test Cable, CTC-34 (12 V dc -
(No reeze rame - Auto/Dc Iris Configuration)

13
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
igure 10. Test Cable, CTC-32 (12 V dc reeze rame Configuration)

14 6X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
Note that the pins 5, 6, 7, & 12 for a 12 V dc
amera can be interenally wired for any one of
three functions.
1. Auto iris lens
2. Dc iris lens
3. Freeze frame operation
The model number designates these differ-
ences for 12 V dc ameras. See the IRIS section
of figure 4.
2.6Power Requirements
The amera is available in two different
power configurations:
1.5 V dc ±10% 500 mA (2.5 watt) power
2. 12 V dc ±10%, 350 mA (4.2 watt). Auto iris and
dc iris versions of the amera are available only in
the 12 V dc version
2.7 Mounting Requirements
The dimensions shown in figures 5 and 6
illustrate all relevant characteristics related to
mounting the amera. Note that the S-mount
adapter is adjustable. The dimension to the front
shoulder of the adapter is a nominal dimension.
Also note that the 1/4-20 threaded holes in the
bottom of the optional mounting adapter block
are meant to accept not more than 0.200-inch
depth from the mounting screws. A screw will
bottom out if an attempt is made to thread it
deeper than 0.200 inch.
2.8CS- and C-mount Adapters
Lenses must be suitable for use with size of
the sensor installed in the amera (1/4-, 1/3-, or
1/2-inch). The front of the amera body is fitted
with an adjustable S-mount adapter. It can be
rotated on its threads for back focus distance by
loosening a hex-socket head setscrew. (Figures 5
and 6 illustrate this setscrew at one location, but
since the S mount rotates, it can appear in any
position.)
igure 11. Typical Interconnection Diagram
PC
SERIAL
PORT
FRAME
GRABBER
COMPUTER
SCENE
CAMERA
RS-232C
Y-C
S-video
COMPOSITE
VIDEO
FREEZE FRAME
TRIGGER INTERFACE
Freeze Frame
may also be GUI controlled
MONITOR
MONITOR
freeze
OPTIONAL
POWER SUPPLY
5 V dc 500 mA or
12 V dc 350 mA
DEPENDS ON MODEL
OF CAMERA
Optional connection
for 12 V dc Camera
with auto or dc iris lens
5V dc or 12 V dc

15
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
If a -mount lens is to be used with the
amera a 5 mm extender ring (in the optional
Accessory Kit) must be threaded onto the front of
the S mount. This ring provide the proper back
focus distance for a -mount lenses.
2.9 Serial Control Input (RS-232C)
Pins 8 and 9 on the rear panel connector
provide RS-232 serial communications (19,200
baud) for control of internal amera functions.
Table 5 lists all 12 pin functions for the connector.
2.10 Installation Procedure
Installing the amera is straightforward. It is
only necessary to mount the amera to a suit-
able base, attach the lens, attach the rear panel
connector and apply power. This assumes the
other end of the cable is properly connected to a
source of power, a tv monitor, and any other
required equipment.
Figures 8 is an example cable diagram of a
test cable for use with the 5 V dc version of the
amera. Only manual iris lenses can be used
with this amera.
Figures 9 and 10 are example wiring dia-
grams illustrating test cables available for use
with the 12 V dc version of the amera.
Figure 9 is for use with either an auto iris
lens or a dc iris lens  depending on how the
amera is internally configured.
Figure 10 is for use when the amera is
internally configured for freeze frame operation
 in which case only a manual iris lens can be
used.
These diagrams show composite video
connected to a viewing monitor and the S-video
connected to a frame grabber in the P . Either
video output can be used for the scene monitor
and frame grabber if they are capable of accept-
ing those inputs.
Freeze frame can also be implemented
through the serial link by using the GUI interface
on the P . When the amera is put into the
freeze mode, it stores the current scene and
continues to output that scene until the amera is
taken out of the freeze frame mode.
As a minimum, the following must be con-
nected:
1. Operating power: either 5 V dc, 500 mA, or 12
V dc, 350 mA, depending on the version of the
amera
2. RS-232 data communications with a P
running the test/setup GUI software
3. Either of these two video monitoring methods:
a. NTS or PAL output on pin 4 of the rear
panel connector
b. The S-video outputs (Y on pin 10 and on
pin 11)
Additionally, the following connections can
be made  depending on the requirements:
4. The freeze frame input (pin 5). This is only for
the manual iris versions of the amera
5. The unused video output may also be used.
These outputs appear simultaneously.
6. An auto iris lens or a dc iris lens, depending on
which type lens a 12 V dc version amera is
internally configured for  unless, of course, it is
configured for freeze frame operation.
2.11Preparation for Shipment and
Storage
For storage periods exceeding about one
month, seal the unit in a vapor-proof bag contain-
ing a fresh desiccant pack.
Maintain the amera storage environment
within a range of -30 to 85 ° (-22 to 185 °F).
For shipment, package with enough foam
padding or other packing material to prevent
damage that can occur during shipping. The
original shipping carton is a good container if it
has not been damaged or subjected to excessive
moisture. For shipping to the factory by ommon
arrier, use the following address:
Cohu Electronics
3912 Calle ortunada
San Diego, CA 92123-1827
Please contact the ustomer Service De-
partment for a Return Authorization (RA) number
before sending any shipments to the factory:

16 6X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
[email protected]
or
858-277-6700 extension 261
Prominently display the RA number on the
outside of the shipping container(s) and on
paperwork contained inside. Give a brief descrip-
tion of why the equipment is being returned and
list the symptoms of any problems being experi-
enced with the equipment.
3.0OPERATION
After the amera is installed, the actual
operation of the amera is controlled by the
related frame grabber and image processing
software.
A manual lens may require some opening
and closing of its iris in response to light condi-
tions,. The lens may also require refocusing from
time to time, but otherwise there is no other
attention required for the amera.
amera functions are primarily controlled by
the GUI interface running on a P . Figure 12 is
the about window of this software.
Figure 13 shows the opening window of the
3610 Graphical User Interface (GUI). Most control
functions are performed from this window, but two
other windows accessible from the Misc area
also perform important functions:
1. Lens/Aperture opens the Lens Dialog window
(fig. 14)
2. Set AE Window opens the Set Weight window
(fig. 15)
3.1. DSP3600 GUI Home Screen (figure
13)
Figure 13 (DSP3600) is the primary control
window where all the various functions are acces-
sible. licking various buttons in this window
causes drop down menus to appear (figure 16).
Table 7 lists the various functions and gives a
brief description.
Table 10 lists the default settings of the GUI.
When any selection is changed, that message is
immediately sent to the amera for implementa-
tion.
Any selection of settings in the GUI can be
stored to one of the presets. Just select the
desired preset number (Preset 1 to Preset 10),
then click Download. If it is desired to make those
(or some other group of selections) the internal
default of the amera, just click on the EEPROM
button. Those settings are then stored in amera
memory and remain as the amera default
settings until other selections are stored by
clicking on the EEPROM button again. The GUI
will remember the factory default it is necessary
to return to reset conditions.
If a frame grabber is used to capture the
video output from a amera, it too will have a GUI
interface for manipulation of all its features.
3.1.1 Gamma Control
The gamma selections of the GUI make
changes to the luminance (black-white) character-
istic (Y-gamma). It can be set to any of 10 re-
sponse curves.
Selections 0 through 7 are an increasingly
nonlinear video response as shown in figure 17.
These curves enhance video response in the
darker areas of a scene.
Selection 8 (bottom curve in figure 18) is a
standard linear video response. This may be the
most desirable choice when making measure-
ments where video level is a key factor.
Selection 9 (top curve in figure 18) is also a
linear response but with an approximate 15
percent increase in gain. This results in a slight
increase of noise in the video.
igure 12. About Screen

17
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
igure 13. DSP3600 Home Screen

18 6X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
Table 7. DPS3600 Home Screen
FUNCTION AREA
NAME EFFECT
Misc
Lens/Aperture Opens new screen for either lens iris setup or aperture conditions
Set AE Windows Opens new screen for setting gain control windows size and locations
About
About Cohu 3600 Opens new window identifying program and version level
BLC (Back Light Compensation)
On
Fixed Weighted Average Windowed fixed weighting (5 areas)
Auto Weighted Average Windowed automatic weighting
Brightens dark areas Histogram Integration 1
Darkens bright areas Histogram Integration 2
Off Back light compensation off
Gamma (figu es 17 and 18)
Preset
0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 can be selected (0 is least curve amount of curve, 7 is maximum
curve). amma 8 is standard linear response. amma 9 is a linear response but with about 15%
increased output  at the expense of additional noise
AWB (Auto White Balance)
Auto Camera automatically adjusts white balance response curve
Manual Up / Down buttons adjust white balance response curve manually
User
Activates red (top) and
blue (bottom) sliders to
right
Red slider changes red response curve
Blue slider changes blue response curve
Exposu e
ain Auto / manual selectable In manual: 0 through 7 selectable
Shutter Auto / manual selectable In manual: 1/50, 1/100, 1/250, 1/500, 1/1,000 1/2,000 1/4,000,
1/10,000, 1/20,000, 1/50,000 sec
Integration
Off / on selectable. When
On, ain & Shutter are
set to Auto
2, 3, 4, 5, 10, 20, 40, 80, 160, 320, 510 fields available when On
selected
Effects
Horizontal Flip Swaps the left and right of scene (not top and bottom)
Vertical Flip Swaps the top and bottom of scene (not left and right)
180° Rotate Rotates scene so top right becomes bottom left
Freeze Captures the current scene and continues to output it
Y-Invert Inverts the luminance signal
C-Invert Inverts the chroma signal
Color Bars Provides color bars at the output
Monochrome Removes chroma from the output
Zoom Control
1xRemoves any digital zoom in effect
In Di gitally zooms in
Out Digitally zooms out
ilt up button Moves up in the scene
ilt down button Moves down in the scene
Pan right button Moves right in the scene
Pan left button Moves left in the scene
Center button Returns to the center of the scene
Continued on next page

19
6X-1042(A)
3610 CAMERA
TECHNICAL RE ERENCE PRELIMINARY A
3.1.2 reeze rame
The current scene from a amera can be
stored into internal memory and presented as the
output by either of two methods. (1) By checking
the Freeze Image box on the GUI screen, or (2)
by pulling pin 5 on the rear panel connector of
the amera low (5 V dc versions of the amera
only).
With either method, the scene is placed into
memory at the end of the current vertical interval.
That scene will continue to be presented until the
freeze mode is ended. When the GUI Freeze
Image box is unchecked or pin 5 is released to
go high again, the new scene begins with the
next vertical interval.
3.1.3 Back Light Compensation (BLC)
When the scene being viewed has a darker
image in front of a bright background (such as a
subject standing in front of a window at midday) a
backlight condition results. The amera has four
BL modes to select from when confronted with
this situation. Two of these modes are based on
a luminance comparison of different parts of the
scene using windowing (3.4.1 and 3.4.2 below).
Two others are based on a histogram analysis of
the scene luminance (3.4.3 and 3.4.4 below). If
both the foreground and background must show
detail, a gamma curve can be used to make the
foreground part of the scene brighter. This works
best with the Darken Bright Areas mode (histo-
gram 2).
3.1.3.1 ixed Weighted Average
(Window 1)
Select this compensation when the subject
of interest is a backlighted dark image that does
not move. The foreground subject will gain detail
as a result of being made brighter, but the back-
light area behind the subject will have a loss of
detail due to this overall increased brightness
level. In this mode, each of the window areas of
the scene have fixed values assigned to them for
determining how to render the overall scene.
3.1.3.2 Automatic Weighted Average
(Window 2)
Select this compensation when the subject
of interest is a backlighted image moving against
the bright background. The foreground subject
will gain detail as a result of being made brighter,
but the backlight area behind the subject will
have a loss of detail due to this overall increased
brightness level. In this mode, the weighting
values are automatically controlled in response to
the light intensity detection window.
3.1.3.3 Brighten Dark Areas
(Histogram 1)
This selection enhances details of a darker
foreground subject that is backlighted. The bright
backlighted area will be made even brighter with
a resulting loss of detail.
Table 7 (continued)
FUNCTION AREA
NAME EFFECT
Presets
Preset drop down menu Choose from factory default or presets 1 through 7
Save Saves preset 1 through 7 settings
EEPROM Saves current entries to the eeprom
Message and COM Area
Tra ns mi t Indi cator and
transmited data line Ind i ca to r lights when data is eing transmitted and hex code of data sent is shown
Receive Ind i ca to r and
data received line Ind i ca to r lights when data is eing received and hex code of data received is shown
COM Select from COM1 though COM3
Close Closes the DSP3600 screen
end

20 6X-1042(A)
3610 CAMERA TECHNICAL RE ERENCE
PRELIMINARY A
UNCTION AREA
NAME E ECT
Lens
Level Setting range Adjustment range from 109 to 149
DC Servo For dc iris lens Sets the dc iris drive stage for the lens being used
Video Servo For auto / video iris lens Sets the auto iris video drive stage for lens used
Manual For manual iris lens Level setting grayed out when in manual
Aperture Correction
HAPGLHorizontal Aperture Gain
Low 0, 1, , & 3 available for selection
HAPGH Horizontal Aperture Gain
High 0, 1, , & 3 available for selection
VAPGVertical Aperture Gain 0, 1, , 3, 4, 5, 6, 7, 8, 9, 10, 11, 1 , 13, 14, 15
available for selection
VHAPGVertical / Horizontal
Aperture Gain
0, 16, 3 , 48, 64, 80, 96, 11 , 1 8, 144, 160, 176,
19 , 08, 4, 40, & 55 available
Close
Close Click button Closes the Lens Dialog window
end
Table 8. Lens Dialog Screen
igure 14. Lens Dialog Screen