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Hitachi CamerasHV-D27
Remote Head 3-CCD Colour Camera
cam_hitachi_hv_d27.jpg (19763 bytes)
  • 1/2" 3 CCD colour camera
  • 800 TV Lines of Resolution
  • Auto Electronic Shutter
  • Auto Shading Compensation
  • Back Light Correction
  • Auto Knee
  • Contrast Correction
  • Lock Scan Mode
  • Field or Frame Integration
  • Genlock
  • Composite, Y/C and RGB outputs
  • RS-232 Remote Control
glo_pdflogo1.gif (667 bytes) Technical datasheet for HV-D27

The HV-D27 is a separate head 3CCD type colour camera with a compact and lightweight camera control unit (CCU). The HV-D27 features 1/2" format CCD's. Each CCD contains 470,000 pixels (picture elements). The C mount lens fitting provides convenient physical compatibility with a broad selection of readily available and specialised optical systems. For improved performance and reliability, the CCU circuitry from the processor to the encoder is contained in a single VLSI DSP semiconductor chip.

The small and lightweight head makes this camera an excellent choice for medical systems, industrial automation, image processing, microscope equipment and a nearly unlimited range of other applications.

HV-D27 Specification (PAL / NTSC)

  • Colour system : PAL     NTSC
  • Optical system: 1/2" f1.6 prism
                               
  • Imaging system: 3CCD's RGB system
  • Imaging device: 1/2" interline transfer CCD with microlenses
                               
  • Total number of pixels: 795 (V) x 596 (H)     (811 (V) x 508 (H) for NTSC)
  • Effective number of pixels: 752 (V) x 582 (H)     (768 (V) x 494 (H) for NTSC)
  • Sensing area: 6.47 (H) x 4.83 (V) mm                  (6.45 (H) x 4.84 (V) mm for NTSC)
                           
  • Encoder system: R-Y/B-Y
  • Sync system: Internal/External (VBS, BBS or HD/VD)
  • Pixelclock frequency: PAL 14,1875 MHz, NTSC 14,31818 MHz
  • Horizontal resolution: 800 TV lines (Y signal at centre, Y output and detail off)
                                        
  • Signal to noise ratio:
    60dB typical (Y output, DNR on, gamma = 1.0, detail correction off, gain 0db)      (62 dB typical for NTSC)
  • Standard sensitivity: 2000 lux at f8.0
  • Minimum illumination: 1.5 lux (50IRE, f1.6, gain +20dB, Ultra Gain ON)
  • Gamma correction: 0.45 or 1.0 (on/off selectable)
  • Picture Distortion: Total 0% not including lens characteristics
  • Registration: Total 0.05% not including lens characteristics
  • Vertical contour correction: 2H
  • Lens Mount: C-mount
  • Lens back focal distance: 17.526 mm in air
  • Sensitivity selection: AGC (0 to +20dB), Normal/High/Maximum, Ultra Gain
  • Scene files: 3 scene files
  • CCD drive functions
    Preset:
    1/60th (1/100th for NTSC) - 1/250th - 1/500th - 1/1,1000th - 1/2,000 - 1/4,000 - 1/10,000th second
    Lockscan: 1/50.31 to 1/253.8 second (1H steps)    (1/60.38 to 1/251.5 second (1H steps) for NTSC)
    AES: Off to approximately 1/1,000 second
    Long integration: 1/25th (1/30th for NTSC) to approximately 8 seconds (1 frame steps), (selectable field/frame integration), (external picture memory required for continuous pictures)
  • Colour Bars: Full     (SMPTE for NTSC)
  • Genlock input: VBS 1.0 volt p-p 3dB or black burst 75 ohms or HV/VD TTL level
  • Serial data input: 1.5 volts p-p high or RS-232C level (selectable)
  • Serial data output: 1.5 volts p-p low or RS-232C level (selectable)
  • Composite video output: VBS 1.0 volts p-p 75 ohms impedance
  • Y/C video output:
    Y:
    1.0 volt 75 ohms
    C: 0.3 volt p-p (burst) 75 ohms
  • Component video output:
    Y:
    1.0 volt p-p 75 ohms
    R-Y: 0.7 volts p-p 75 ohms
    B-Y: 0.7 volts p-p 75 ohms
  • RGB video output:
    R:
    0.7 volts 75 ohms
    G: 0.7 volts 75 ohms
    B: 0.7 volts 75 ohms
  • Sync output:
    HD:
    2.0 volts p-p 75 ohms
    VD: 2.0 volts p-p 75 ohms
  • Power supply voltage: 12 volts dc (stable operation 10.5 to 17 volts dc)
  • Power consumption: Approximately 10.5 watts

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