MC-1000WU-20A High-Resolution
B/W Camera
User’s Guide
Literature No. SOCU007
May 1998
Printed on Recycled Paper
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Preface
Read This First
About This Manual
This User’s Guide provides installation, operation, and maintenance informa-
tion for the MC-1000WU-20A black and white video camera.
How to Use This Manual
This document contains the following chapters:
Chapter 1 – Introduction
Chapter 2 – Specifications
Chapter 3 – Installation
Chapter 4 – Operation
Chapter 5 – CCD Circuit Description
Chapter 6 – Cleaning Instructions
Appendix A – Functional Block Diagram
Appendix B – Timing Diagrams
Refer to the appropriate chapter for more information or for instructions con-
cerning procedures or practices.
Information About Cautions and Warnings
This book may contain cautions and warnings.
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
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About This Manual
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you.
The information in a caution or a warning is provided for your protection.
Please read each caution and warning carefully.
Trademarks
TI is a trademark of Texas Instruments Incorporated.
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Documentation
When making suggestions or reporting errors in documentation, please include the following information that is on the title
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Mail: Texas Instruments Incorporated
Technical Documentation Services, MS 702
P.O. Box 1443
Houston, Texas 77251-1443
Note: When calling a Literature Response Center to order documentation, please specify the literature number of the
book.
Read This First
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Contents
1
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1
1.2
1.3
1.4
1.5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Equipment Required But Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2
3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1
2.2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1
3.2
Interface Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.1 Mounting the Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.2 Connecting an Auto-Iris Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.3 Connecting a Standard Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.4 Connecting the AC/DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.5 Connecting the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Post-Installation Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.3
4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1
General Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.1.1 Turn-On Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.1.2 Turn-Off Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.1.3 Focusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.1.4 Adjusting Image Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
External Operation (See Appendix B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.2
5
CCD Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 The CCD Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
6
Cleaning Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
A
B
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
A.1 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
B.1 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
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Figures
1–1
2–1
2–2
A–1
B–1
B–2
B–3
B–4
B–5
B–6
B–7
B–8
B–9
MC-1000WU-20A Interface Options and Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Input Interface Circuit of VD, HD, and MCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Output Interface Circuit of Pixel and Shutter Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
TV Internal Mode (see Note) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
TV External Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
The Relationship of Vertical Sync Out and Mechanical Shutter or Strobe Light . . . . . . . . B-3
The Relationship of Horizontal Drive Input and Video Output . . . . . . . . . . . . . . . . . . . . . . . . B-4
Shutter Internal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Shutter External Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
The Relationship of VD Input and HD Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-5
HD Input Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
The Relationship of VD Input and C-Sync . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6
Tables
2–1
3–1
3–2
3–3
3–4
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Auto Iris Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Power Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Video Connector (BNC Connector) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
AUX Connector Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
viii
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Chapter 1
General Description
This User’s Guide describes installation, operation, and maintenance for the
MC-1000WU-20A video camera.
Topic
Page
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.3 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.4 Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
1.5 Equipment Required But Not Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1-1
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Features
1.1 Features
The Texas Instruments MC-1000WU-20A camera features the Texas
Instruments TC215 solid-state monochrome charge-coupled-device (CCD)
image sensor. The camera is for vision system applications requiring high-
resolution and high-sensitivity operation. The camera features include:
TV frame rate, 15 Hz
High sensitivity, 0.35 lux typical
12 m square pixel
TI-Virtual Phase CCD technology
High blue response
High near-IR response
Electron-hole recombination antiblooming
100% optical fill factor
1-2
General Description
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Introduction
1.2 Introduction
The MC-1000WU-20A is one of a series of high-resolution video cameras that
employs TI’s mega-pixel CCD image sensors. The cameras are intended for
scientific and industrial imaging applications where image data processing is
required.
The MC-1000WU-20A camera employs the TI TC215 full-frame CCD image
sensor, which features 1,017,000 active photosites, resulting in a very-high-
resolution image. The TC215 sensor provides high sensitivity and good
spectral response as a result of the TI patented Virtual Phase technology.
The TC215 sensor measures 17.2 mm diagonally and features 12- m square
pixels. The square pixels permit symmetrical image measurement in both the
X and Y axis. The photosite has a 100% fill factor and is responsive to wave-
lengths in the ultraviolet through the visible and into the near-infrared spectral
regions. The camera outputs composite analog video at a 20-mega-pixel per
second data rate. Two operating options can be selected - a normal operating
mode and a programmable shutter mode. In addition, the camera provides for
auto-iris control.
A
mechanical shutter or strobe light is recommended for most
MC-1000WU-20Acameraapplications. Theshutteroperationissynchronized
to the camera by supplying an external shutter command signal. The shutter
may operate from a minimum integration time of 1/2500 second to 1/125
second or 10 frames/s maximum. Figure 1–1 shows the camera interface
options and mode selection.
Figure 1–1. MC-1000WU-20A Interface Options and Mode Selection
MCK (20 MHz)
HD
VD
SHT Command
SHT Monitor
Video
Camera Interface Signals
Internal
X’TAL
Digital
Multiplexer
80 MHz
20 MHz
EXT Pixel
MCK
20 MHz
I/E
1-3
General Description
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Physical Description
1.3 Physical Description
The MC-1000WU-20A camera is housed in an aluminum case 210.6 mm long
(excluding lens) by 68.0 mm high by 68.0 mm wide. It is self-contained except
for power supply and monitor. The camera weighs 2.09 pounds.
The MC-1000WU-20A offers a standard TV C-mount lens attachment with an
adjustable lens locking ring to allow precise adjustment of the lens back focal
length. A variety of lenses or mechanical shutters may be used.
(??Page 3–4 says three ??)Two standard 1/4 20 threaded tripod mounting
holes on the baseplate allow secure mounting.
1-4
General Description
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Equipment Supplied
1.4 Equipment Supplied
After unpacking the camera and before discarding the packaging materials,
inventory the shipment for the following items:
MC-1000WU-20A CCD camera
Lens (optional) (not supplied)(??If not supplied, it won’t be in the in-
ventory??)
MC-1000WU-20A CCD Camera User’s Guide
Auto iris connector
Power connector (optional power supply)
I/O interface connector (not supplied)(??If not supplied, it won’t be in
the inventory??)
1-5
General Description
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Equipment Required But Not Supplied
1.5 Equipment Required But Not Supplied
The MC-1000WU-20A camera uses the full-frame TC215 CCD image sensor.
This full-frame format sensor requires a mechanical shutter or an electronic
light strobe to prevent image smear. The shutter or strobe light allows scene
information to be captured during either the open time of the shutter or on-time
of the strobe light. The transfer or read-out of the captured scene information
is performed during the closed time of the shutter or off-time of the strobe.
Once the shutter or strobe light is chosen, an appropriate lens may also be
selected.
The MC-1000WU-20A camera supplies analog video at either a 15-Hz frame
rate in the TV mode or a 10-Hz frame rate in the shutter mode and can be
displayed directly to a video monitor capable of those frame rates. However,
many applications require the addition of a custom or commercially available
frame-buffer or other video processing equipment. This hardware will enable
the user to capture and digitally process the scene information. The
MC-1000WU-20A is presently supported by several manufacturers of video
processing hardware and software systems. Most manufacturers have
application notes available describing the interface required.
1-6
General Description
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Chapter 2
Specifications
This chapter lists specifications for the MC-1000WU-20A camera and
describes the interface circuit.
Topic
Page
2.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2-1
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2.1 Specifications
Table 2–1 lists the specifications for the MC-1000WU-20A camera.
Table 2–1.Specifications
Item
Specification
Imager
Resolution
Texas Instruments TC215 Full-Frame CCD
1024(H) 1024(V) (total imager)
1000(H) 1017(V) (active pixels)
Pixel size
12 m 12 m
Imager size
H: 12.2 mm
V: 12.0 mm
Synchronization
TV mode
Internal/external (jumper selectable)
1050 lines/frame (33 blank lines)
15 frames/sec
non-interlace
Shutter mode
Sensitivity
1050 lines/frame (33 blank lines)
10 frames/sec (max)
0.29 lux (max)
0.35 lux (typ)
0.41 lux (min)
1/30 integration
Video output: 100 IRE
S/N ratio: 48 dB
Light source: T=2870°K
S/N ratio
48 dB
MTF
10 MHz chart, 35% (typ), 500 nm
0.90 ±0.05 V
White clip
Setup level
Output dc level
Sync level
Supply voltage
50 ±10 mV
0.30 ±0.05 V
0.30 ±0.015 V
+5 ±0.15 Vdc
–12 ±0.4 Vdc
+12 ±0.4 Vdc
Power consumption (typical) +5 V at 0.820 A
+12 V at 0.180 A
–12 V at 0.150 A
Non-uniformities
Total black and white pixel non-uniformities, less than 20. Vertical line non-
uniformities, less than 5.
Shading (maximum)
Horizontal
10%
15 mV
20 mV
100%
50 mV
70 mV
Vertical
Vertical frequency
Horizontal frequency
Gamma
15.46 Hz
16.234 kHz
1.0
2-2
Specifications
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Table 2–1.Specifications (Continued)
Item
Specification
Operating temperature
Storage temperature
Dimensions
–10 C to +45 C
–30 C to +85 C
68 (W) 68 (H) 210.6 (D) mm
2.09 lbs
Weight
2-3
Specifications
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Interface Circuit
2.2 Interface Circuit
The input interface circuit of VD, HD, and MCK shown in Figure 2–1, consists
of one SN75124 input gate pulled up through a 4.7-k resistor to 5 Vdc and
pulled down to ground through an optional 100- resistor. The optional pull
down is selected by jumpers JP1 (MCK), JP2 (HD), and JP3 (VD).
Figure 2–1. Input Interface Circuit of VD, HD, and MCK
5 V
5 V
5 V
4.7 kΩ
4.7 kΩ
4.7 kΩ
VD
HD
MCK
75124
75124
75124
JP3
JP2
JP1
100 Ω
GND
100 Ω
GND
100 Ω
GND
Figure 2–2. Output Interface Circuit of Pixel and Shutter Monitor
(see Note A)
Pixel Out
Shutter
Monitor
75123
470 Ω
470 Ω
100 Ω
NOTE A. For pixel clock receiving, pull domain resistor 100 Ω is recommended.
2-4
Specifications
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Chapter 3
Installation
This chapter describes interface assignments and gives instructions for
installing and testing the camera.
Topic
Page
3.1 Interface Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2 Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.3 Post-Installation Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-1
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Interface Assignments
3.1 Interface Assignments
Depending upon the application, it may be necessary to build a camera cable
that contains some combination of the signals listed below:
Table 3–1.Auto Iris Connector Pin Assignment
Pin Number
Signal Name
Video signal
GND
A
B
C
D
E
+12 V
NC
NC
Note: Connectors
Camera side: PRC05-R5M (Tagimi)
Cable side: PRC05-P5F (Tagimi)
Table 3–2.Power Connector Pin Assignment
Pin Number
Signal Name
+12 V
+12 V
GND
A
B
C
D
E
F
+5 V
+5 V
GND
G
H
–12 V
GND
Note: Connectors
Camera side: R03-R8F (Tagimi)
Cable side: R03-PB8M (Tagimi)
Table 3–3.Video Connector (BNC Connector)
Pin
Signal Name
Composite video
Video RTN
Center pin
Shell
3-2
Installation
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Interface Assignments
Table 3–4.AUX Connector Pin Assignment
Pin Signal Name
I/O Trigger
Interface
1
MCK RTN
2
Horizontal Drive RTN
Vertical Drive RTN
Pixel Clk Out RTN
Shutter RTN
3
4
5
6
Shutter Monitor RTN
Internal/External RTN
GND
7
8
9
MCK IN
I
SN75124N
SN75124N
SN75124N
SN75123N
SN74LS14N
SN75123N
10
11
12
13
14
15
Horizontal Drive
Vertical Drive
I
Negative
Negative
I
Pixel Clk Out
O
I
Shutter CMD
Shutter Monitor OUT
Internal/External
O
I
Negative
Note: Connector Information
External mode: short 7 pin––––15 pin
Internal mode: open 7 pin––––15 pin
Connectors: Dsub 15 pin female connector, #4-40 (cable side)
3-3
Installation
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Installation Procedure
3.2 Installation Procedure
The following paragraphs describe installation procedures for the
MC-1000WU-20A camera.
3.2.1 Mounting the Camera
The camera can be mounted using any one of (??Two on page 1–4??) three
1/4 20-thread mounting holes located on the camera base plate.
3.2.2 Connecting an Auto-Iris Lens
Most auto-iris lenses can be used with MC-1000 series cameras. Connect the
auto-iris lens to the MC-1000WU-20A camera per the auto-iris connector pin-
out table in Section 3.1 and the lens wiring schematic provided by the lens
manufacturer.
3.2.3 Connecting a Standard Lens
A number of standard C-mount or shutter attachments may be used with the
camera. The camera employs a lens locking ring to fix the minimum distance
between the rear lens element and the CCD imager.
3.2.4 Connecting the AC/DC Power Supply
ThePS-1000powersupplyisrecommendedforusewiththecamera, because
it already has the proper power connector installed. A bench supply can also
be used, provided that the bench supply output meets the power requirements
of the camera listed in Chapter 2.
3.2.5 Connecting the Monitor
Video may be viewed directly from the camera by attaching a video cable to
the video input jack of a TV monitor. The monitor must be capable of 15 Hz
vertical synchronization. The video may also be the input source to commer-
cially available frame-buffer or other video processing hardware. The video
signal should be properly terminated into a 75-ohm load. A mechanical shutter
or strobe light will be required in most applications.
3-4
Installation
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Post-Installation Test
3.3 Post-Installation Test
When the power and monitor connections have been made, test the camera
by applying power to the monitor and the external power supply (if used). The
green power-on LED on the camera rear panel should light and an image
should appear on the display. It may be necessary to operate the shutter con-
trol or frame-buffer hardware to obtain an image. In addition, the lens may re-
quire focus adjustment to obtain a sharp picture.
3-5
Installation
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3-6
Installation
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Chapter 4
Operation
This chapter describes general and external operating procedures for the
MC-1000WU-20A camera.
Topic
Page
4.1 General Operating Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.2 External Operation (See Appendix B) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4-1
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General Operating Procedures
4.1 General Operating Procedures
TheMC-1000WU-20Acamerafeatureshigh-resolution, stable, verysensitive,
linear images from an array of 1000(H) by 1017(V) picture elements. The cam-
era operates as one unit of a user-defined imaging system. Other components
typically consist of a mechanical shutter or strobe light, a TV frame-buffer or
frame-storage computer or hardware system, an optical system (lens), and a
power supply. The MC-1000WU-20A camera operates with little or no opera-
tor adjustment after the initial setup period. The following paragraphs give op-
erating procedures for the camera.
4.1.1 Turn-On Procedure
The camera does not have a power switch; as soon as power is applied by the
power supply, the camera becomes operable. The green LED on the rear
panel signals that power is applied to the camera. After connection of the
power supply, a picture should appear on a monitor screen within a few
seconds. If additional frame-buffer hardware is used in the application, verify
that the hardware is working properly.
4.1.2 Turn-Off Procedure
Toturnoffthecamera, removethepowerconnectorfromthecamera, orswitch
off the appropriate system power supply.
4.1.3 Focusing
The MC-1000 series cameras use a lens-locking ring to set the minimum dis-
tance between the rear lens element and the CCD imager. Focus the lens by
rotating the front lens barrel clockwise or counterclockwise until the image is
sharp. If a sharp image cannot be obtained, do the following steps:
1) Check lens surface for smears, smudges, or dust. Clean lens surface per
lens manufacturer’s instructions.
2) Check glass cover on CCD imager for smears, smudges, or dust. Clean
glass cover with alcohol and a cotton swab. See Chapter 6, Maintenance
Instructions, for details.
3) Check the distance between the rear lens element and the CCD imager.
If necessary, adjust the distance by loosening the lens-locking ring.
Remember to tighten the lens-locking ring after adjusting to fix the new
distance setting.
4.1.4 Adjusting Image Brightness
Image brightness is a function of exposure time (which is fixed in standard TV
applications) and lens aperture (F number). The sensitivity of the CCD sensor
and the amount of light reaching the sensor through the optical system is a
function of scene illumination, optical alignment, and magnification. In most
cases, the image brightness can be adjusted by varying the lens aperture. If
an image is too dark, rotate the lens aperture ring to a smaller number. This
selects a larger lens aperture, allowing more light through the lens.
4-2
Operation
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General Operating Procedures
4.2 External Operation (See Appendix B)
Figure B–1. TV Internal Mode
Figure B–2. TV External Mode
Figure B–3. The Relationship of Vertical Sync Out and Mechanical Shutter
or Strobe Light.
Figure B–4. The Relationship of Horizontal Drive Input and Video Output
Figure B–5. Shutter Internal Mode
Figure B–6. Shutter External Mode
Figure B–7. The Relationship of VD Input and HD Input
Figure B–8. HD Input Waveforms
Figure B–9. The Relationship of VD Input and C-Sync
4-3
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4-4
Operation
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Chapter 5
CCD Circuit Description
This chapter describes the TC215 CCD image sensor circuit used in the
camera.
Topic
Page
5.1 The CCD Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5-1
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The CCD Array
5.1 The CCD Array
The TC215 is a full-frame charge-coupled device (CCD) image sensor that
provides very-high-resolution image acquisition for image processing
applications such as robotics vision, medical x-ray analysis, and metrology.
The image format of the sensor measures 12.0 mm horizontally by 12.2 mm
vertically; the image area diagonal is 17.2 mm. The image area contains 1017
active lines with 1000 active pixels per line. Six additional dark reference lines
give a total of 1024 lines in the image area, and twenty-four additional dark
reference pixels per line give a total of 1024 pixels per horizontal line. The
pixels are 12 mm square and form precise rows and columns, horizontally and
vertically, allowing precise image geometry measurements.
The CCD is a solid-state device, which requires no external adjustment or
regular maintenance. Unlike a conventional pickup tube, there are no
electromagnetic alignment routines to be observed because there is no
electron beam involved.
The full-frame image sensor should be used with a shutter or with strobed
illumination to prevent smearing of the image during readout. After image
capture (integration time), the readout is accomplished by transferring the
charge one line at a time into two serial registers, each of which contains 512
data elements and 12 dummy elements. The typical pixel rate is
20 mega-pixels per second using both serial registers. Operating the TC215
at the typical data rate of one field per frame generates video at a continuous
15 frames per second in the TV mode of operation.
5-2
CCD Circuit Description
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Chapter 6
Cleaning Instructions
This chapter gives instructions for cleaning the camera.
Topic
Page
6.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6-1
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Cleaning
6.1 Cleaning
The camera body, lens, and the CCD imager optical glass window should be
kept clean and free of dust and grime. Keeping the lens and the CCD imager
window clean enhances the picture, ensuring better results in the camera
application. These surfaces can be cleaned with denatured alcohol and a
cotton swab. Extreme care should be taken when cleaning the optical glass
CCD imager window to avoid breaking the glass.
6-2
Cleaning Instructions
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Appendix A
Functional Block Diagram
This appendix contains the functional block diagram for the camera.
Topic
Page
A.1 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-1
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Functional Block Diagram
A.1 Functional Block Diagram
Figure A–1.Functional Block Diagram
3 AM
Interface Board
(20M)
3 AJ
Logic Board
3 AN
Connector
Board
3 AK Board
3 AD
CCD Board
3 AR
Video Process
Board
Power In
Auto IRIS
3 AH
Power/Driver
Board
A-2
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Appendix B
Timing Diagrams
This appendix contains timing diagrams for the camera.
Topic
Page
B.1 Timing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
B-1
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Timing Diagrams
B.1 Timing Diagrams
Figure B–1.TV Internal Mode (see Note)
1050H
1050H
Vertical
SYNC (Internal)
3H
Shutter
†
Window
27H
27H
Mechanical Shutter
or Strobe Light
Composite
Video (Out)
Read Out
1017H
Read Out
1017H
3H
3H
30H
Vertical
Blank
30H
Vertical
Blank
†
No output. This timing indicates CCD state which can be the integration. Shutter or strobe timing have to be synchronized
with this window period.
Note: This mode is used for camera operation verification.
B-2
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Timing Diagrams
Figure B–2.TV External Mode
1050H
1050H
Vertical
Drive (IN)
Vertical
SYNC (Internal)
3H
Shutter
Window
27H
27H
Mechanical Shutter
or Strobe Light
Composite
Video (Out)
Read Out
1017H
Read Out
1017H
30H
Vertical
Blank
3H
3H
30H
Vertical
Blank
Figure B–3.The Relationship of Vertical Sync Out and Mechanical Shutter or Strobe Light
Vertical
Drive (IN)
3H
3H
Mechanical Shutter
or Strobe Light
27H
27H
Timing Diagrams
B-3
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Timing Diagrams
Figure B–4.The Relationship of Horizontal Drive Input and Video Output
HD (Input)
Active
Vedio
Video (Output)
(See B–1–8)
Figure B–5.Shutter Internal Mode
Integrate Frame
525H
Read Out Frame
1050H
Shutter Command
(Input)
Integrate (Flex Timing)
†
Shutter Monitor
(Out)
3H
Flush
AB Capability High
AB Capability Low
Vertical SYNC
(Internal)
Read Out
1017H
30H
Vertical
Blank
3H
Vertical
Blank
Continuous
AB Clock
34H
Shutter Window
Mechanical Shutter
or Strobe Light
Recomended Timing For High Dynamic Range XXXX Source Due to The Capability State.
Composite
Video (Out)
Read Out
1017H
Read Out
1017H
3H
3H
30H
Vertical
Blank
30H
Vertical
Blank
†
Fall edge shows starting of CCD integration state. Rise edge shows AB capability state change. The integrate time
does not change, but changes AB capability.
B-4
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Timing Diagrams
Figure B–6.Shutter External Mode
Integrate Frame
Read Out Frame
1050H
Shutter Command
(Input)
525H
Vertical Drive
(IN)
Shutter Monitor
(Out)
Integrate
Vertical SYNC
(Internal)
Read Out
1017H
Flush
34H
30H
Vertical
Blank
3H
Vertical
Blank
For High Dynamic Range Input.
Shutter Window
Mechanical Shutter
or Strobe Light
Composite
Video (Out)
Read Out
1017H
525H
30H
Vertical
Blank
30H
Vertical
Blank
3H
3H
Figure B–7.The Relationship of VD Input and HD Input
TV External Mode
VD (Input)
HD (Input)
± 50 ns
Shutter External Mode
SHUTTER (Input)
Shutter Pulse Width
(380 µs to 10 µs)
5 to 50 ns
VD (Input)
± 50 ns
HD (Input)
Timing Diagrams
B-5
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Timing Diagrams
Figure B–8.HD Input Waveform
1/F (H)
HD (Input)
3 to 10 µs
Figure B–9.The Relationship of VD Input and C-Sync
TTL Level
VD (Input)
1 to 9H
C–SYNC
B-6
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