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DATASHEET
Lighting
Imaging
Telecom
Imaging Product Line
(R)
LC3000-Series
High Performance, Low-Cost Analog Line Scan Camera
512, 1024 and 2048 elements, 10 and 20 MHz output rates
Description
In the LC3000-series analog line scan camera, PerkinElmer has combined the best features of photodiode array detection, high-speed charge-coupled scanning, and analog line scan camera technology to offer an uncompromising solution to the increasing demands of advanced imaging applications. The LC3000-series is a high performance, low-cost, analog line scan camera line. The LC3000-series features a differential driver analog video output with resolutions of 512, 1024 or 2048 pixels, which can achieve data rates of up to 20 MHz with exceptional noise immunity. They are designed for volume applications where small size and low cost are required. In order to allow the user to compensate for variations in illumination found in "real-world" application environments, the cameras feature adjustable gain and offset levels. The LC3000-series cameras feature a geometrically precise photodiode CCD image sensor with 14m square photoelements. State of the art electronic design enables the LC3000-series to deliver consistent, reliable performance while the sturdy metal housing provides maximum protection in a variety of harsh environment and factory floor conditions. The LC3000-series cameras convert light imaged during a scene into an analog video signal. The amplitude of the video signal is a linear function of the incident illumination taken from the scene. Antiblooming structures within the sensor ensure superior performance over a wide range of lighting conditions. User-defined control is possible for line rate, integration time and video data rate. LC3000 cameras may be interfaced to most frame grabber cards, allowing for a tested, plug and play solution. Typical high performance line scan
Features
* 10 and 20 MHz output rate models * Geometrically precise 14 m square pixel CCD * Small size: 2.5"H x 2.5"W x 2.72"L * High dynamic range (500:1) * Peak QE greater than 65% * Antiblooming control * Single power supply operation * Electronic exposure control * Adjustable gain and offset levels * Line scan rates to 36 kHz
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Analog Line Scan Camera
Description (cont.)
applications include lumber processing, parcel scanning, non-contact measurement, document scanning, dimensional gauging, biomedical imaging, bar code scanning and many other industrial and scientific applications.
Figure 1a: Spectral Sensitivity Curve (Min. Gain)
100 90 80
100 90
Right Scale
80 70 60 50 40
Responsivity (V/J/cm2)
The Sensor
The LC3000-series cameras contain a high-performance, high-resolution line scan image sensor (PerkinElmer Optoelectronics parts RL0512PAG, RL1024PAG, or RL2048PAG) featuring a pinned photodiode pixel. Each photodiode converts incident light into discrete charge packets. Advantages of pinned photodiode pixels include linear exposure control, the elimination of image lag, and the reduction of photo response non-uniformity (PRNU). For more specific sensor specifications and information, please consult the appropriate sensor datasheet. Figure 1a details the spectral sensitivity of the sensor, while Figure 1b details the sensor's glass window light transmission curve.
70 60 50 40 30 20 10 0 250 350 450 550 650 750 850 950
Left Scale
30 20 10 0 1050
Wavelength (nm)
Functional Description
The video signal from the sensor is processed through a single channel of sampled-and-held, raster order, analog video data. The video channel signal processing circuitry offers both adjustable gain and offset levels to allow customization of the camera to unique lighting applications. An operational amplifier in a differential configuration is recommended to receive the video signal. Figure 2 details the camera video processing.
Figure 1b: Sensor Window Transmission Curve
100 90 80 70 60 50 40 30 20 10 0 150 250 350 450 550 650 750 850 950 1050
Transmission (%)
Operating Modes
The LC3000-series cameras can be operated in one of two different modes: Master Mode and Slave Mode. Master mode is to be used when the LC3000series camera is operating as a standalone unit. Master mode requires only input DC power (12-24 VDC) for operation. In this mode of operation, the camera will operate at its basic clock frequency (defined by the model number) and at the maximum line rate. Master mode operation is selected using the bank of rear-camera located
Wavelength (nm)
Table 1. Master/Slave Mode DIP-switch Settings
DIP Switch #1 Setting ON OFF OFF ON DIP Switch #2 Setting ON OFF ON OFF Operating Mode Master Mode Slave Mode Alternate Slave 1 Alternate Slave 2
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DSP-201.01D - 4/2002 Page 2
QE (%)
Analog Line Scan Camera
Figure 2: LC3000 Camera Block Diagram
Camera Mode Select Dip Switch Position 1 and 2 2
FPGA
OH1 OH2
CAMERA TIMING LOGIC LINE TRANSFER LOGIC
RS-422 Receivers +LT -LT +MCLK CLK LOGIC -MCLK +LRn Exposure Control Logic -LRn
I M A G E R
OTG
D R I V E L O G I C
L E V E L
T R A N S
OPG ORG OAB
RS-422 Drivers
Line Enable Logic
+CCLK -CCLK
LENS
VSP TIMING LOGIC +CLT -CLT Gain Range Select Dip Switch Position 3-5 3 3 Dip Switch Position 6-8 Offset Range Select +Vout +LEN
VIDEO SIGNAL PROCESSING
-LEN
C D S
OFFSET CONTROL
GAIN CONTROL
Amp -Vout
Single D.C Power Supply Input 12-24V
DIP-switches. These switches are accessible behind a removable panel, located above the 25-pin connector on the back plate of the camera. Figure 3 illustrates the timing details in Master Mode. Slave Mode is to be selected when the camera's operations are to be synchronized with the user's unique system. In slave mode, the camera requires an external Master Clock signal (MLCK)
to define the output video data rate, as well as a properly timed Line Transfer (LT) signal to initiate the line readout. Figure 4 illustrates timing details in slave mode. Table 1 details correct DIP-switch settings for both Master and Slave Mode. Within slave mode, there are two alternative settings for unique applications. Alternative Slave Mode 1 allows the user to supply the camera
with Line Reset (LR) and LT signals, but allows the camera to run at the maximum data rate determined by the internal oscillator. Alternative Slave Mode 2 instructs the camera to ignore LR signals, which allows users to bypass the exposure control feature of the camera. Table 1 details all DIPswitch settings for all operating modes.
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Analog Line Scan Camera
Figure 3: Master Mode Timing Diagram
CCLK
16 Clock Cycles
CLT
12 Clock Cycles N Clock Cycles 12 Cycles
LEN
1 Clock Cycle 1 Clock Cycle
Analog Video
1 2
...
10 Dark pixels N-1 N
Note: N is the number of active pixels on the sensor
Figure 4: Slave Mode Timing Diagram
2 Clock Cycles min.
2 Clock Cycles min.
LT
Exposure period 2 Clock Cycles + 1.2usec min.
LR
4 Clock Cycles min. 4 Clock Cycles min. Line period
CCLK MCLK
1 Clock Cycle
16 Clock Cycles
CLT
12 Clock Cycles min. N Clock Cycles
LEN
1 Clock Cycle 1 Clock Cycle 12 Clock Cycles min.
10 Dark pixels
Analog Video Note 1: N = number of active pixels on the sensor Note 2: E = extra pixel
12
...
N-1 N
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DSP-201.01D - 4/2002 Page 4
Analog Line Scan Camera
Input Signals
The LC3000 camera requires a single DC supply (+12 to 24VDC) for operation. An internal oscillator sets the default data output rate to default model rate (10 or 20 MHz), and the camera will operate at the maximum line rate. The camera can be further controlled by three externally generated differential input signals: Master Clock (MCLK), Line Transfer (LT), and Line Reset (LR). The Master Clock input determines the data rate frequency for values up to maximum clock of the camera. The MCLK input is optional, as the camera is preset to run off of the internal oscillator at the default maximum data rate. Should a data rate slower than that default rate be necessary, an externally supplied master clock can be enabled by selecting that setting through the bank of DIP-switches. The data rate may be run from 20 kHz to cameras maximum clock rate. External line transfer operation also can be enabled on the DIP-switch bank. The Line Transfer input signal transfers the charge from each photo site to the readout registers. The readout registers, in turn, transport the charge from each photodiode in succession to the video outputs. The LT input from the user must remain in the ON state for at least two MCLK cycles to initiate the internal line transfer and may remain ON until 2 clock cycles prior to the next desired line transfer. Because there are extra stages in the CCD sensors readout register, a minimum number of MCLK cycles (the number of elements on the CCD sensor plus 41) must exist between successive LT commands. The maximum line scan period without exposure control is 20 milliseconds. Integration times longer than 20 ms can introduce higher levels of dark current, which reduces the dynamic range of the sensor. Longer integration times are possible, however, if the camera is cooled, which reduces dark current. Specific application characteristics, such as light level and rate of object motion, will determine the optimum setting. Exposure time of the
Table 2. Video Offset Switch Settings
Range
0 1 2 3 4 5 6 7
DIP Switch #6
ON ON ON ON OFF OFF OFF OFF
DIP Switch #7
ON ON OFF OFF ON ON OFF OFF
DIP Switch #8
ON OFF ON OFF ON OFF ON OFF
Normal Offset (mV)
0 6.4 12.8 19.3 25.7 32.1 38.6 45.0
Table 3. Video Gain Switch Settings
Range
0 1 2 3 4 5 6 7
DIP Switch #3
ON ON ON ON OFF OFF OFF OFF
DIP Switch #4
ON ON OFF OFF ON ON OFF OFF
DIP Switch #5
ON OFF ON OFF ON OFF ON OFF
Gain Times Full Scale
0.67 1.00 1.50 2.20 3.35 5.00 7.50 11.20
camera can be separately controlled by using the external line reset input. The LR input is active low (ON) in polarity and therefore, when not in use, must be held high (OFF). In this condition, the exposure time is defined by the period of the LT signal. When using the LR input signal, the exposure period is defined to be the time between the rising edge of LR to the rising edge of LT. The LR signal must be held active low (ON) for a minimum of 4 clock cycles and must be inactive high (OFF) for a minimum of 4 clock cycles prior to the LT signal.
of the CCLK signal can be used to capture analog video data by a frame grabber or digitizer. The Line Enable (LEN) signal brackets the valid analog video. The signal becomes high one CCLK period before the first valid pixel and goes low one CCLK period before the last valid pixel. The video output is a contiguous pixel data stream with a dynamic range (defined as peak video divided by rms. pixel noise) of greater than 500:1. The Camera Line Transfer (CLT) output signal is an internally generated sync signal. Its falling edge indicates the start of a line readout sequence. This signal may be used for controlling strobes, shutters or other accessories of the users system.
Output Signals
The LC3000-series camera provides three output synchronization signals: Camera Clock (CCLK), Line Enable (LEN), and Camera Line Transfer (CLT). The Camera Clock (CCLK) operates at either the MCLK frequency or default camera frequency, and is synchronized to the analog video. The output
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DSP-201.01D - 4/2002 Page 5
Analog Line Scan Camera
Video Signals
The LC3000-series camera features an adjustable DC offset. This offset is controlled by the bank of DIP-switches. Table 2 describes the nominal level of the video black level with respect to the various switch selections. Additionally, the LC3000-series cameras feature a user-adjustable video gain. Video gain is adjustable by the bank of DIP-switches. Table 3 references the various settings and corresponding gain levels. Cameras are shipped factory-default with range 1.
Table 4. Camera Features Summary
Model
LC3011 LC3012 LC3013 LC3021 LC3022 LC3023
Array
RL0512P RL1024P RL2048P RL0512P RL1024P RL2048P
Active Pixels
512 1024 2048 512 1024 2048
Pixel Size
14m x 14m 14m x 14m 14m x 14m 14m x 14m 14m x 14m 14m x 14m
Maximum Data Rate
10 MHz 10 MHz 10 MHz 20 MHz 20 MHz 20 MHz
Max.Line Scan Rate
18,000 L/Sec 9,300 L/Sec 4,700 L/Sec 36,000 L/Sec 18,700 L/Sec 9,500 L/Sec
Max. Line Scan Period
55.3s 106.5s 208.9s 27.7s 53.3s 104.5s
Figure 5. Optical Interface Diagram
Drawing Not To Scale Lens CCD FOV Object Image AL ES
WD FOV RR ER EN ES AL MAC WD EXT MFD
EXT
MFD
= Field of view (object size + tolerance) = Resolution requirement = FOV / RR = Elements required (calculated) = # of CCD elements = Element size (pixel spacing) - 14m = Array length (max, image size) = EN x ES = Magnification = AL / FOV = Working distance (object to lens) = Length of extensions = WD / MAG = Mount to flange distance
Figure 6. LC3000 Outline Drawings
REGISTRATION SLOT
0.126 -000 X 0.150 long X 0.09 deep
+002
MEASUREMENTS IN INCHES (MM)
REGISTRATION HOLE 0.156 +002 X 0.09 deep -000
0.850 (21.59) 2.50 (63.50)
PIXEL 1
FRONT VIEW
1.70 0.015 (43.13 0.381
0.850 (21.59)
REAR VIEW
DIP Switches
2.50 (63.50) REGISTRATION HOLE +002 0.126 -000 X 0.09 deep
REGISTRATION HOLE 0.156 +002 X 0.09 deep -000 2.50 (63.50)
25-pin D-type Male Connector
1.25 (31.75) 2.50 (63.50) 1.25 (31.75)
SIDE VIEW
2.50 (63.50)
2.72 (69.09)
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DSP-201.01D - 4/2002 Page 6
Analog Line Scan Camera
User Connections
The connector on the LC3000-series camera is a 25-pin D-type male connector. All user connections are via this connector. It contains all communications, output, and power connections needed for camera operation. Refer to Table 5 for pinout locations and details.
Table 5. Pin Assignments
Pin
1 2 3 4 5 6 7 8 9 10 11 12 13
Signal
N/C N/C CCLK+ MCLKN/C N/C CLT+ LENN/C LR+ N/C VideoPower
Description
No Connection No Connection Camera Clock+ Master ClockNo Connection No Connection Camera Line Transfer+ Line EnableNo Connection Line Reset+ No Connection Analog VideoInput DC Power
Pin
14 15 16 17 18 19 20 21 22 23 24 25
Signal
Power Return MCLK+ CCLKLT+ LTCLTLEN+ N/C LRN/C Video+ N/C
Description
Input Power Common Master Clock+ Camera ClockExternal Line Transfer+ Extenal Line TransferCamera Line TransferLine Enable+ No Connection Line ResetNo Connection Analog Video+ No Connection
Camera Performance
The camera head is housed in a rugged, one-piece, deep drawn aluminum case, measuring 2.5"H x 2.5"W x 2.72"L (excluding lens mounts or connector extensions) specifically designed for industrial applications. The sensor is mounted on an aluminum plate that efficiently transfers heat to the camera case. The camera is provided with a standard 1 /4"-20 UNC tripod mounting block, which can be attached to any of the four sides of the camera. The mounting holes used to attach the tripod block can also be used to mount the camera assembly. The recommended mounting method for the LC3000series is attaching the camera to the desired location using the faceplate of the housing. The faceplate mounting screws should have a maximum insertion depth of 0.25" (6.35 mm). This mounting method results in the most advantageous use of the one-piece faceplate design and provides a highly stable reference surface to the optical plane of the CCD sensor. Additionally, the CCD sensor is thermally coupled to the faceplate of the camera, and the conductive cooling of this surface is useful in minimizing thermally generated dark current and noise of the camera system.
Table 6. Camera Specifications
Characteristic
Pixel Spacing Aperture Width Spectral Response Window Anti-Blooming Full Scale Output Output Impedance DC Offset Exposure Time Line Period LC3011 LC3012 LC3013 LC3021 LC3022 LC3023 Fixed Pattern Noise Photo Response Non-Uniformity (PRNU) Random Noise, rms Noise Equivalent Exposure Dynamic Range 50% Full Scale Exposure1 Photo Response Weight Dimensions Lens Mount Random Vibration Shock (6 axis without lens), Peak Operating Temperature Storage Temperature Input Voltage Current @12 VDC2 Input Power
Notes: 1. Measured with 635 nm light source. 2. LC3013PGN-011
Min
350 0 55.4 106.6 209.0 27.7 53.3 104.5 -20 -40 11.5 -
Typ
14 14 Glass Yes 0.75 100 0.06 500:1 0.015 25 15 2.5 x 2.5 x 2.72 U-Mount 30 300 12 480 6
High
1000 45 20 15 10 1.5 55 80 24 -
Unit
m m nm V ohm mV mS s s s s s s mV % mV nJ/cm2 Range J/cm2 V/J/cm2 ounces inches g,RMS g
Optical Interface
The LC3000-series cameras are equipped with a U-Mount lens interface (MA2-1-6H) that is aligned to the CCD sensor. Adapters are available to accept `C', `U', or `F' (Nikon Bayonet) lens. These standard adapters allow the user to select the optimum lens to suit their particular application. For assistance in choosing camera adapters, extensions, and lenses, contact PerkinElmer.
C C
VDC mA W
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DSP-201.01D - 4/2002 Page 7
Analog Line Scan Camera
Ordering Information
While the information provided in this data sheet is intended to describe the form, fit and function for this product, PerkinElmer reserves the right to make changes without notice.
Table 7. Stock Part Numbers
Camera Model
LC3011PGN-022 LC3012PGN-022 LC3013PGN-022 LC3021PGN-022 LC3022PGN-022 LC3023PGN-022 LC3011PGC-0221 LC3012PGC-0221 LC3013PGF-0222 LC3021PGC-0221 LC3022PGC-0221 LC3023PGF-0222
Notes: 1. Includes C-mount adaptor 2. Includes F-mount adaptor
Resolution
512 1024 2048 512 1024 2048 512 1024 2048 512 1024 2048
Maximum Data Rate
10MHz 10MHz 10MHz 20MHz 20MHz 20MHz 10MHz 10MHz 10MHz 20MHz 20MHz 20MHz
For more information e-mail us at opto@perkinelmer.com or visit our web site at www.perkinelmer.com/opto. All values are nominal; specifications subject to change without notice.
Table 8. Sales Offices
North America
United States PerkinElmer Optoelectronics 2175 Mission College Blvd. Santa Clara, CA 95054 Toll Free: 800-775-OPTO (6786) Phone: +1-408-565-0830 Fax: +1-408-565-0703
Europe
Germany PerkinElmer Optoelectronics GmbH Wenzel-Jaksch-Str. 31 D-65199 Wiesbaden, Germany Phone: +49-611-492-570 Fax: +49-611-492-165
Asia
Japan PerkinElmer Optoelectronics NEopt. 18F, Parale Mitsui Building 8 Higashida-Cho, Kawasaki-Ku Kawasaki-Shi, Kanagawa-Ken 210-0005 Japan Phone: +81-44-200-9170 Fax: +81-44-200-9160 www.neopt.co.jp 47 Ayer Rajah Crescent #06-12 Singapore 139947 Phone: +65-770-4925 Fax: +65-777-1008
Singapore
(c) 2001 PerkinElmer Inc. All rights reserved.
PerkinElmer, the PerkinElmer logo and the stylized "P" are trademarks of PerkinElmer, Inc. Reticon is a registered trademark of PerkinElmer, Inc.
DSP-201.01D - 4/2002
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