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Reticon LC3000 Series Instruction Manual

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Imaging
Digital Imaging
LC3000-Series Camera Instruction Manual
PerkinElmer Optoelectronics
2175 Mission College Blvd.
Santa Clara, CA 95054
Tel: 408-565-0830
Toll Free: 800-775-OPTO (6786)
Fax: 408-565-0703
E-Mail: opto@perkinelmer.com
http://www.perkinelmer.com
www .perkinelmer .com/opto
055-0458-MAN Rev. C

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  • Page 1 Imaging Digital Imaging LC3000-Series Camera Instruction Manual PerkinElmer Optoelectronics 2175 Mission College Blvd. Santa Clara, CA 95054 Tel: 408-565-0830 Toll Free: 800-775-OPTO (6786) Fax: 408-565-0703 E-Mail: opto@perkinelmer.com http://www.perkinelmer.com www .perkinelmer .com/opto 055-0458-MAN Rev. C...
  • Page 2 Copyrights, Patents and Trademark Credits PerkinElmer, the PerkinElmer Logo and the stylized P are trademarks of PerkinElmer, Inc. Reticon is a registered trademark of PerkinElmer, Inc. Warranty Seller warrants that the article to be delivered under this order will be free from defects in material and workmanship under normal use and service for a period of one year from date of shipment.

  • Page 3: Table Of Contents

    Table of Contents ......................1 NTRODUCTION 1.1 W ’ ................... 1 N THIS ANUAL 1.2 P ......................1 URPOSE 1.3 P ..................1 RODUCT VERVIEW 1.4 F .................. 1 UNCTIONAL ESCRIPTION ........
  • Page 4 Figure 5 Imaging Geometry Definition ................. 9 Figure 6 Camera Front Face Attachment Point Definition ........... 11 Figure 7 LC3000 Series Camera Mounting Hole Location ..........12 Figure 8 Test Target ......................1 7 Figure 9 Test Target Placement ........

  • Page 5: Introduction

    1.3 Product Overview The LC3000 series cameras are designed for linear line scan image capture applications. 512, 1024 and 2048 pixel line scan image capture is offered at 10, or 20 megapixels/second depending on the camera model selected. Each camera...

  • Page 6: Figure 1 Lc3000 Series Camera Block Diagram

    Figure 1 LC3000 Series Camera Block Diagram PerkinElmer Optoelectronics...

  • Page 7: Typical Installation

    2 Typical Installation Figure 2 illustrates a typical machine vision installation showing the major system components and defines the coordinate system used throughout this manual. Figure 2 Typical Machine Vision Environment PerkinElmer Optoelectronics...

  • Page 8: Receiving And Inspecting Your Camera

    3 Receiving and Inspecting Your Camera 3.1 Unpacking Your Camera Inspect the received shipping container for any damage. If a shipping container shows visible signs of damage, it should be retained until all of the contents have been checked for completeness and absence of damage. Unpack the received shipping container and account for each item listed on the accompanying packing list.

  • Page 9: Camera Operation Overview

    This process operates the same regardless of mode. The only differences are the events that initiate exposure and data output transfer. The LC3000 series cameras offer 4 exposure modes for maximum flexibility to capture image data in a variety of applications.

  • Page 10: Master Mode

    4.1.1 Master Mode The master mode is a stand-alone operating mode that requires only DC power for operation. Master mode is selected on the bank of DIP switches on the back of the camera. For mode selection see section 6.4.1 on page 18 . Figure 3 Master Mode Timing The exposure time in master mode is determined by the line period that is fixed at N+41 clock cycles, where N is the number of pixels.

  • Page 11: Exposure Control

    4.1.2.1 Exposure Control Slave mode camera exposure is determined by the LR and LT signals which must be timed with MCLK. The exposure time is defined as the time between the rising edge of the LR signal and the rising edge of the LT signal. 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 rising edge.

  • Page 12: Alt Slave Mode 1

    4.1.3 Alt Slave Mode 1 Alt Slave Mode 1 operates similarly to the Slave Mode except that the camera operates on the internal camera clock CCLK (The basic camera model clock rate) while the exposure is determined by the externally applied LR and LT signals. There must be at least N+41 CCLK cycles between successive LT commands.

  • Page 13: Installation Guidelines

    5.1 Optical Interfacing The LC3000 series cameras require properly chosen lenses and lens extenders to allow the imaging of the chosen web width onto the sensor array. Table 2 shows the array length and number of pixels on the array for each camera model.

  • Page 14: Estimating The Working Distance

    5.1.1 Estimating the Working Distance The following relationships assume a thin lens relationship that is deemed sufficiently accurate to permit reasonably accurate estimates of the optical configuration. Referring to Figure 5: Where: ID = Image Distance EXT = Length of Extender AF = Sensor to Camera Face distance f = focal length of lens AL = Length of sensor array...

  • Page 15: Lens Attachment

    5.2 Lens Attachment The LC3000 series cameras provide threaded mounting holes on the front face of the cameras to allow the attachment of custom lens adapters. The lens mount is a M42 x 1 (Pentax) thread. PerkinElmer can provide such optical components as lenses, C and F style lens adapters, extension tubes, and focusing systems.

  • Page 16: Connecting Power

    Figure 7 LC3000 Series Camera Mounting Hole Location Note: For best thermal stability, mount the camera to a flat metal surface using the faceplate holes. 5.4 Connecting Power Warning: It is the buyers responsibility to comply with all applicable code requirements.

  • Page 17: Interface Cabling

    5.5 Interface Cabling The signal interface cable supports an RS-422 interface to receive the external LT, LR and MCLK signals and to output the LEN, CLT and CCLK signals. Additionally the cable connects power to the camera and provides the analog video output.

  • Page 18: Frame Grabber Interface Guidelines

    5.6 Frame Grabber Interface Guidelines The LC3000 series cameras have been designed for use with several brands of frame grabber. It is the users responsibility to select a frame grabber that is specific to the application being served and to provide any signal conditioning required to accept the differential analog video and support the RS-422 interface signals.

  • Page 19: Camera Setup

    6 Camera Setup This section provides a generalized procedure for installing, configuring and activating your camera. Since every application is different, only suggested steps for a logical sequence to get the camera running are listed. It is assumed that you have familiarized yourself with the camera exposure and data output modes as described in section 4.1on page 5.

  • Page 20: Tripod Mounting

    6.2.1 Tripod Mounting The LC3000 series cameras are equipped with a ¼-20 UNC tripod mounting block that can be placed on any one of the 4 sides of the camera housing. Be sure to use 3 screws when employing the tripod mount.

  • Page 21: Activating The Camera

    6.3 Activating the Camera Place the test target within the cameras’ projected field of view and turn on the illumination source. Figure 8 Test Target Orient the test target such that the black and white Focusing Bars are directly below the camera and are aligned with the sensor array X direction as shown in Figure 9.

  • Page 22: Camera Control

    6.4 Camera Control Camera control includes camera operating mode, video offset and video gain. Each of these parameters is controlled by DIP switches accessible on the back of the camera. Figure 10 Camera Control DIP switch Location Note: Switch in the UP position is ON. 6.4.1 Camera Operating Mode Selection The camera operating mode is selected by DIP switches 1 and 2 as shown in Table 4.

  • Page 23: Video Offset

    6.4.3 Video Offset Video Offset is determined by DIP switches 6, 7 and 8 as shown in Table 6 Table 6 Video Offset Selection Range DIP Switch #6 DIP Switch #7 DIP Switch #8 Nominal Offset (mV) 12.8 19.3 25.7 32.1 38.6 45.0...

  • Page 24: Verifying Slave Mode Operation

    6.5 Verifying Slave Mode Operation Note: In order to verify the Slave Mode you must have made provisions for the required external signals in the frame grabber interface as described in section 4.1.2 page 6. 1. Make sure that the camera is powered down. 2.

  • Page 25: Target Speed Determination

    7 Target Speed Determination 7.1 Target Speed and Exposure Relationships The following definitions apply: Image Resolution The number of pixels in the camera sensor array. Spatial Resolution The sensor array pixel dimensions mapped onto the web dimension X. (See Figure 5 on page 9) Feature Resolution The smallest feature to be imaged by the camera.

  • Page 26: Sample Imaging Setup

    7.2 Sample Imaging Setup The following example assumes that you have determined the following: · Target width X · Image resolution # of pixels (By choice of camera) · Required feature resolution. i.e. the smallest feature dimension “D” to be detected. Example: To image a feature .020”...

  • Page 27: Troubleshooting

    8 Troubleshooting 8.1 Troubleshooting Check List No Video 1. Verify that the power to the camera is on. 2. Verify that the frame grabber is operating properly. 3. Verify that the interface cable is securely attached to the camera. 4. Verify the interface cable continuity on each pin. 5.

  • Page 28: Contacting Customer Support

    8.3 Contacting Customer Support 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 Germany PerkinElmer Optoelectronics GmbH Wenzel- Jaksch-Str. 31 D-65199 Wiesbaden Germany Phone: +49-611-492-570 Fax: +49-611-492-165 Japan PerkinElmer Optoelectronics NEopt.

  • Page 29: Appendix A Interface Guidelines

    APPENDIX A Interface Guidelines A.1 RS-422 Digital Interface The LC3000 series digital signals are received and transmitted using balanced , differential circuits that comply with the data transmission standards set forth in the EIA RS-422 specification. All of the differential digital I/O signals on the D-sub 25 connector are labeled (+) or (-) to indicate polarity.

  • Page 30: Video Receiver

    A.2 Video Receiver Figure 12 Recommended Video Line Receiver Circuit PerkinElmer Optoelectronics...
  • Page 31 Index Alt Slave Mode 1, 8 Operating Mode Alt Slave Mode 2, 8 selection, 18 Optical Interfacing, 9 Camera activating, 17 Power Supply Requirements, 12 installing, 15 Product Overview, 1 mounting, 11 Operation overview, 5 Camera Control switches, 18 RMA, 23 Camera Gain Control, 19 RS-422 Camera Setup, 15...

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