Resumen del contenido incluido en la página 1
3CCD High Speed Color
Line Scan Camera
CV-L105
Operation Manual
Camera: Revision A
Manual: Version 1.1
CV-L105manJan9.doc
JPT 9- 01-03
Resumen del contenido incluido en la página 2
CV-L105 Table of Contents 1. General ........................................................................................................2 2. Standard Composition ......................................................................................2 3. Main Features ................................................................................................2 4. Locations and Functions ...................................................................................2 5. Pin A
Resumen del contenido incluido en la página 3
CV-L105 1. General The CV-L105 is a high-speed 3CCD color line scan camera with 2048 pixels resolution. It features digital LVDS RGB output with 30 MHz pixel rate, allowing line rate up to 14285 lines/second. An exposure control function facilitates constant exposure time, independent of the scan rate. In combining the latest dichroic prism and line sensor technology, the CV-L105 provides excellent color reproduction with high linearity. The latest version of this manual can be downloa
Resumen del contenido incluido en la página 4
CV-L105 5. Pin Assignment 5.1. 68-pin Digital interface connector (Digital video, control signals, trigger input) Fig. 2. 68-pin digital interface. (Seen from camera rear.) Pin Pin number Signal Remarks number Signal Remarks 1 GND 35 GND 2 +RD7 out 36 -RD7 out 3 +RD6 out 37 -RD6 out 4 +RD5 out 38 -RD5 out 5 +RD4 out 39 -RD4 out Red Data out. LVDS Red Data out. LVDS 6 +RD3 out 40 -RD3 out 7 +RD2 out 41 -RD2 out 8 +RD1 out 42 -RD1 out 9 +RD0 out 43 -RD0 out Contr
Resumen del contenido incluido en la página 5
CV-L105 5.2. 6-pin Hirose connector (Power) Fig. 3. 6-pin Hirose. (Seen from camera rear.) Pin no. Signal Remarks 1 NC 2 NC 3 GND Power GND 4 GND Power GND 5 NC 6 +12V DC in + Power in The camera connector part number is Hirose H10A-7R-6P. (Male). The mating connector to use on the cable side is Hirose HR10A-7P-6S 5.3. 9-pin DSUB connector (RS-232C) 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 Fig. 4. 9-pin DSUB for RS-232C. (Seen from camera rear.) Pin no.
Resumen del contenido incluido en la página 6
CV-L105 5.4. Input and Output Circuits Video outputs, timing outputs, trigger input and control inputs are found on the 68 pin LVDS connector. 5.4.1. Video output The digital EIA-644 LVDS output is constructed as follows: Red channel video output +RD0 to +RD7 Bits 0 to 7 positive side of the differential signal -RD0 to –RD7 Bits 0 to 7 negative side of the differential signal Green channel video output +GD0 to +GD7 Bits 0 to 7 positive side of the differential signal -GD0 to –GD
Resumen del contenido incluido en la página 7
CV-L105 5.4.2. Trigger input The camera is triggered by an EIA-644 LVDS input signal pair. (+EXT TRIG in/ -EXT TRIG in (on pin #19 and pin #53)). Depending on the configuration of the camera, this input can provide operation in 4 modes: Internal Trigger. Scan mode. Internal Trigger. Shutter mode. External Trigger. Scan mode. External Trigger. Shutter mode. DS90C032 DS90C031 100 Twisted Camera Image capture system Fig. 6. Input receiver circuit for EXT TRIG 5.4.
Resumen del contenido incluido en la página 8
CV-L105 6. Functions and Operations 6.1. Principle of operation A line scan camera works according to the same principle as a fax machine, also sometimes referred to as a “push broom” operation. It captures a single line at a time (horizontal), and requires either the object or the camera to be moving to create the vertical direction of the image. Area Fig. 8. The principle of line scan. A 3CCD line scan camera follows the exact same principle, with the
Resumen del contenido incluido en la página 9
CV-L105 CV-L105 PC with Frame Horizontal Resolution Encoder Vertical Resolution Fig. 10. Specifying an encoder. Example of a camera set-up, with an encoder. When using a line scan camera together with an encoder, it is crucial to calculate the required specifications of the encoder in order to maintain the same aspect ratio in both vertical and horizontal resolution. The horizontal resolution is given by the number of pixels in the
Resumen del contenido incluido en la página 10
CV-L105 6.2. Trigger modes Internal Trigger. Scan mode. The camera will operate continuously with Ex Expos posu ur re e t ti im me e = = S SC CAN AN v va al lu ue e its internal trigger. The exposure is equal to the scanning time Ex Expo pos su ur re e set by the SCAN parameter via RS-232C only. Dat Data a ou out t SHUTTER parameter has no meaning here. LEN LEN SCAN value 150 µs through 32.5 ms. Internal Trigger. Shutter mode. The camera will operate continuously with its int
Resumen del contenido incluido en la página 11
CV-L105 6.2.1. Internal Trigger. Scan mode. In this mode, the camera does not require an EXT TRIG signal to be issued to the camera. The line rate (scan rate) is generated inside the camera. The camera will operate continuously with its internal trigger. The exposure time is equal to the scanning time set by the SCAN parameter via RS-232C. The permitted range for the scan rate is 151 µs to 32.5 ms (corresponds to 6.6 kHz to 30 Hz). SHUTTER parameter has no function here. To use this
Resumen del contenido incluido en la página 12
CV-L105 6.2.2. Internal Trigger. Shutter mode. In this mode, the camera does not require an EXT TRIG signal to be issued to the camera. The line rate (scan rate) is generated inside the camera. The camera will operate continuously with its internal trigger. The scanning interval is equal to the time set by the SCAN parameter. The exposure time is equal to the Shutter time set by the SHUTTER parameter via RS-232C. The permitted range for the scan rate is 151 µs to 32.5 ms (corresponds to
Resumen del contenido incluido en la página 13
CV-L105 6.2.3. External Trigger. Scan mode. In this mode, the camera requires an EXT TRIG signal to be issued to the camera. The trigger signal is typical taken from an encoder. The exposure time is equal to the trigger interval. On the EXT TRIG input positive going edge the ongoing integration period is terminated and charge is read out. At the same time it starts a new cycle. The exposure time is therefore dependant of the line rate. SHUTTER and SCAN parameters has no function here. Th
Resumen del contenido incluido en la página 14
CV-L105 6.2.4. External Trigger. Shutter mode. In this mode, the camera requires an EXT TRIG signal to be issued to the camera. The trigger signal is typical taken from an encoder. The scanning time is equal to the trigger interval. The exposure time is equal to the trigger low period (pulse width). For every EXT TRIG input negative going edge an integration period starts. It is terminated and charge is read out on the trigger positive going edge. The exposure time is therefore independant
Resumen del contenido incluido en la página 15
CV-L105 6.3. Other functions 6.3.1. Binnig Binning is a function where the signal from two neighbour pixels are added and read out as a single pixel. The sensitivity will be double, but the resolution will be the half. The binning function has no influence on the internal scan rate and shutter setting. The function can be selected by RS-232C, internal jumper setting or on the I/F connector pin #10. For configuration please refer to 7.2 and 7.3. 6.3.2. Pixel rate The camera has 2 pi
Resumen del contenido incluido en la página 16
CV-L105 7. Configuring the Camera All configuration of the CV-L105 camera is done via the RS-232C port, which is factory setting. Binning and pixel rate settings can also be controlled by TTL signals into the interface connector or internal jumpers. From the factory, the camera will start up with the factory default. The factory setting is as follows: Clock 30 MHz Binning 2048 (Off) Trigger Internal Mode Scan Scan time 32.350 msec RGB gain and offset To 3100K color balance (by in
Resumen del contenido incluido en la página 17
CV-L105 Fig. 18. Shutter window 7.1.1. Clock Select With Clock Select two speeds can be selected, 15 MHz or 30 MHz. The 15 MHz operation will limit the maximum line rate (scan rate) to 7 172 Hz. It is recommended when a cable length of more than 20 metres is used or in applications where high RFI fields may be experienced. 7.1.2. Binning With Binning set to 2048 the full resolution of the CCD sensors is 2048 pixels. If a higher sensitivity is required, and a reduced resolution c
Resumen del contenido incluido en la página 18
CV-L105 7.1.6. Gain and offset adjustment Fig. 19. Gain and Offset window The individual gain and offset setting of each color is possible. This is required for adapting the white balance temperature for the 4 user configuration areas. For the factory default this setting has no function. It can only be adjusted with the internal potentiometers. The range of these settings is 0 – 255. 7.1.7. Communication and files The communication between the PC and the camera is set up an
Resumen del contenido incluido en la página 19
CV-L105 7.2. Configuration via I/F connector and jumpers The binning function, pixel rate and RS-232C function can be controlled by TTL inputs on the 68pin Hirose interface connector and with jumper settings. Below table describe the possible states of these inputs. Please refer to fig. 7. for principle. RS-232C contr. Binning Clock Function Pin Pin Pin Remarks JP3 JP4 #30 JP1 JP2 #10 JP5 #31 RS-232C control only O S H O O H O H Factory setting. RS-232C enabled RS-232C enable/d
Resumen del contenido incluido en la página 20
CV-L105 8. External Appearance and Dimensions Fig. 22. Outlines - 19 -
