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CV-M77
Progressive Scan Camera
CV-M77
Operation Manual
Camera: Revision A
Manual: Version 1.0
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CV-M77 - 2 -
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CV-M77 1 General...................................................................................................................... 5 2 Standard Composition............................................................................................. 5 3 Main Features........................................................................................................... 5 4 Camera Housing and Dimensions .......................................................................... 6 5 Pi
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CV-M77 12.2.4 Patterned Noise .............................................................................................................. 27 12.3 References......................................................................................................................... 27 13 Users Record.......................................................................................................... 28 14 Index...............................................................................
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CV-M77 1 General The CV-M77 camera is a compact RGB color progressive scan camera designed for automated imaging applications. The 1/3" CCD sensor with square pixels and primary mosaic filter offers a superb image quality and the build in DSP assures high color reproduction. The camera incorporates several triggered modes and various shutter functions to capture moving objects and to control the light. All camera mode settings can be controlled via an RS-232C interface or by the swit
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CV-M77 4 Camera Housing and Dimensions 4-M3 depth5 50 5 (0.2) (19.7) 50 90 7.6 5 3 6 7 (1.97) (3.54) (0.3) R MG 4 B SW1 RS-232C TRIG DCIN RGB/ SYNC 1 (C-Mount) 2 (CCD chip) 8 4-M3 depth5 5 50 (0.2) (19.7) 11 Figure 4-1 1 Lens mount of C-mount type. *1) 2 1/3" interline transfer CCD progressive scan sensor with square pixels and primary mosaic filter 3 R Gain Potentiometer. To adjust Red gain level manually. 4 B Gain Potentiometer. To adjust Blue gain level manually. 5 MG Gain
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CV-M77 5 Pin Assignment 5.1 12-pin Multi-connector (DC-IN/SYNC.) 1 9 2 8 Type: HR10A-10R-12PB-01 (Hirose male) 10 Seen from rear. 11 3 12 7 4 6 5 Pin No. 5.1.1.1 Signal 5.1.1.2 Remarks 5.1.1.3 GND 1 +12V DC input 2 GND 3 4 NC GND 5 SW-S301.1 “ON” for 75Ω termination, SW-S303.1 “OFF” for HD output Ext.HD input 6* SW-S301.2 “ON” for 75Ω termination, SW-S303.2 “OFF” for VD output Ext.VD input 7* GND 8 PCLK out: JP305 “short”, JP306 “open” NC 9* NC: JP309 and
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CV-M77 See section 8 “Switch Settings” and section 9 “Jumper Settings ” for more information. *) When using the WEN signal from the 6 pin connector do not use the same signal from the 9 pin connector. *) Signals shown in bold italics are factory settings. 5.3 9-pin DSUB-connector (RGB/SYNC.) Pin No. 5.3.1.1 Signal 5.3.1.2 Remarks VD input: JP303 “open” and JP304 “short” NC 1* 2 GND R output 3 Sync. on G: SW302-3 “ON” G output 4* B output 5 HDinput: SW303-1 “ON”
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CV-M77 5.4 Input and Output Circuits In the following schematic diagrams the input and output circuits for video and timing signals are shown. For alternative connections refer to “Internal Switch and Jumper Settings”. Jumper settings are shown as for factory default. 5.4.1 Video input The video output signal is a 75Ω RGB video signal. The signal level is 0.7Vpp. Composite sync. is selectable on the green video signal via software or the internal switch 302-3. The sy
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CV-M77 6 Functions and Operation Apart from the standard continuous operation, the CV-M77 features three external triggering modes, Edge Pre-select, Pulse Width Control mode and Readout Delay mode. These 3 external triggering modes operate with H non-reset. In H non-reset, the exposure will be synchronized to the internal HD and the exposure will start at the first HD after the negative going edge of the trigger (see figure 6-1). Trigger EDGE PRE-SELECT H non-reset int. HD Exposure
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CV-M77 time (accumulation time) is governed by the fixed shutter speed set up by the rear panel DIP- switches or via RS-232C control. The resulting video signal will start to be read out after the selected shutter time. The WEN pulse indicates the start of valid video signal. Refer to timing charts for details. A new trigger pulse must not be applied before the video read out has finished. If the camera is synchronized to an external HD signal, there are some requirements to the phase betwe
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CV-M77 Set SW1-5 and SW1-6 on the rear plate of the camera to “ON” and SW1-7 to OFF or use the RS 232C control to set-up the PWC mode of the camera. 6.3.3 Frame-delay Readout Mode This trigger mode operates in H non-reset mode. In H non-reset mode the trigger and HD is synchronized. The exposure will start at the first HD pulse after the falling edge of the external trigger signal. The exposure ends at the rising edge of the external trigger signal. The trigger pulse must be longer th
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CV-M77 6.4 Timing diagram for Horizontal and Vertical Sync. Video Output - 13 -
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CV-M77 6.5 Timing diagram for Edge Pre-select mode 1H=50.8µ s TRIG 2H Min 2H Min EXT HD INT HD INT VD 1.5H-2.5H 9H 1.5H-2.5H EEN Exposure time 0.5H Exposure time 0.5H WEN 17H 4H 4H Video out 770H Effective video 6.6 Timing diagram for Pulse Width Control mode 1H=50.8µ s TRIG 1H-2000H 1H Min EXT HD INT HD INT VD 0.5H-1.5H 9H 0.5H-1.5H EEN 0.5H Exposure time Exposure period 0.5H WEN 17H 4H 4H Video out 770H Effective video 6.7 Timing diagram for Frame-delay Readout mode ‚P‚g ‚T ‚
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CV-M77 6.8 Timing diagram for Long Time Exposure mode 1H=50.8µ s EXT HD INT VD EXT VD 1V x N (2VD Min) INT VD 1H Max 1H Max 9H Exposure time EEN WEN 4H 17H 4H Video out 770H Remarks: 1VD indicates 792H. The interval of EXT VD input has to be multiple number of 1VD. EEN is lov - 15 -
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CV-M77 7 Configuring the camera using the serial interface. 7.1 Mode Setting using ASCII commands via the RS-232C port. The configuration of the CV-M77 camera can be done via the RS-232C port. The camera is to be set up via an ASCII terminal or from a PC running terminal emulator software. Below is the description of the ASCII based short command protocol. The RS-232C serial interface specification for CV-M77 is: 7.2 Communication setting Baud Rate 9600bps Data Length 8bit
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CV-M77 C - Gain and analogue signals settings. AS=[Param.] 1 AGC switch 0=OFF (Manual), 1=ON (Auto) AS? GA=[Param.] 2 Master gain level 0-700 Available when AS=0. GA? RG=[Param.] 3 Red gain level 0-255 Available when WB=0. RG? BG=[Param.] 4 Blue gain level 0-255 Available when WB=0. BG? AG=[Param.] 5 AGC level 0-255 Available when AS=1. AG? 0=Manual (Variable) Sets manual gain values WB=[Param.]
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CV-M77 Response to firmware version request command Example: Request Command (PC →Camera) Receiving Data(Camera →PC) Remarks Command Name Format *** is Version No. Version Request VN? *** (3 letter) 7.4 RS232C Cable Connections CAMERA COM PORT 6 PIN 9 PIN D 1 CD 4 DTR 6 DSR 1 TXD 2 RXD 2 RXD 3 TXD 3 GND 5 GND 4 7 RTS 8 CTS 5 9 CI 6 - 18 -
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CV-M77 8 Switch Settings Before changing any switch settings or jumper settings turn off the power. 8.1 Mode Settings by Switch The factory setting for the SW-1 switch on the rear panel of the camera is OFF: The electronic shutter is OFF, the external trigger modes are OFF, gamma is OFF (=1.0), the AGC is OFF and the RS-232C control is disabled. SW 1 OFF ON (<) (>) Shutter xxxx 1 xxxx < < < < < < < < > > > > Shutter xxxx 2 xxxx < < < < > > > > < < <
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CV-M77 The SW301 switches (1-3) in “ON” position activates 75Ω termination of ext.HD and ext.VD signals and it activates 75Ω termination of an ext.trigger signal. The factory setting is “OFF” enabling TTL signal termination for all three signals. 8.2.2 SW302 switch S302 OFF ON White - 1 xxxx Balance 2 xxxx Sync. on G: 3 xxxx WEN: 4 xxxx The SW302 switch has the following functions: The switches (1-2) determines the color
